[core] Optimize DelayAction for no-argument case using if constexpr

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: J. Nick Koston <nick@home-assistant.io>

.github/workflows/codeql.yml

@@ -58,7 +58,7 @@ jobs:
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@0499de31b99561a6d14a36a5f662c2a54f91beee # v4.31.2
+        uses: github/codeql-action/init@014f16e7ab1402f30e7c3329d33797e7948572db # v4.31.3
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
@@ -86,6 +86,6 @@ jobs:
           exit 1
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@0499de31b99561a6d14a36a5f662c2a54f91beee # v4.31.2
+        uses: github/codeql-action/analyze@014f16e7ab1402f30e7c3329d33797e7948572db # v4.31.3
         with:
           category: "/language:${{matrix.language}}"

.pre-commit-config.yaml

@@ -11,7 +11,7 @@ ci:
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.14.4
+    rev: v0.14.5
     hooks:
       # Run the linter.
       - id: ruff

Doxyfile

@@ -48,7 +48,7 @@ PROJECT_NAME           = ESPHome
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 2025.11.0b1
+PROJECT_NUMBER         = 2025.12.0-dev
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

esphome/components/api/api_connection.cpp

@@ -476,8 +476,9 @@ uint16_t APIConnection::try_send_light_info(EntityBase *entity, APIConnection *c
   auto *light = static_cast<light::LightState *>(entity);
   ListEntitiesLightResponse msg;
   auto traits = light->get_traits();
+  auto supported_modes = traits.get_supported_color_modes();
   // Pass pointer to ColorModeMask so the iterator can encode actual ColorMode enum values
-  msg.supported_color_modes = &traits.get_supported_color_modes();
+  msg.supported_color_modes = &supported_modes;
   if (traits.supports_color_capability(light::ColorCapability::COLOR_TEMPERATURE) ||
       traits.supports_color_capability(light::ColorCapability::COLD_WARM_WHITE)) {
     msg.min_mireds = traits.get_min_mireds();
@@ -1294,11 +1295,11 @@ void APIConnection::alarm_control_panel_command(const AlarmControlPanelCommandRe
 #endif
 
 #ifdef USE_EVENT
-void APIConnection::send_event(event::Event *event, const std::string &event_type) {
-  this->schedule_message_(event, MessageCreator(event_type), EventResponse::MESSAGE_TYPE,
-                          EventResponse::ESTIMATED_SIZE);
+void APIConnection::send_event(event::Event *event, const char *event_type) {
+  this->send_message_smart_(event, MessageCreator(event_type), EventResponse::MESSAGE_TYPE,
+                            EventResponse::ESTIMATED_SIZE);
 }
-uint16_t APIConnection::try_send_event_response(event::Event *event, const std::string &event_type, APIConnection *conn,
+uint16_t APIConnection::try_send_event_response(event::Event *event, const char *event_type, APIConnection *conn,
                                                 uint32_t remaining_size, bool is_single) {
   EventResponse resp;
   resp.set_event_type(StringRef(event_type));
@@ -1650,9 +1651,7 @@ void APIConnection::DeferredBatch::add_item(EntityBase *entity, MessageCreator c
   // O(n) but optimized for RAM and not performance.
   for (auto &item : items) {
     if (item.entity == entity && item.message_type == message_type) {
-      // Clean up old creator before replacing
-      item.creator.cleanup(message_type);
-      // Move assign the new creator
+      // Replace with new creator
       item.creator = std::move(creator);
       return;
     }
@@ -1822,7 +1821,7 @@ void APIConnection::process_batch_() {
 
   // Handle remaining items more efficiently
   if (items_processed < this->deferred_batch_.size()) {
-    // Remove processed items from the beginning with proper cleanup
+    // Remove processed items from the beginning
     this->deferred_batch_.remove_front(items_processed);
     // Reschedule for remaining items
     this->schedule_batch_();
@@ -1835,10 +1834,10 @@ void APIConnection::process_batch_() {
 uint16_t APIConnection::MessageCreator::operator()(EntityBase *entity, APIConnection *conn, uint32_t remaining_size,
                                                    bool is_single, uint8_t message_type) const {
 #ifdef USE_EVENT
-  // Special case: EventResponse uses string pointer
+  // Special case: EventResponse uses const char * pointer
   if (message_type == EventResponse::MESSAGE_TYPE) {
     auto *e = static_cast<event::Event *>(entity);
-    return APIConnection::try_send_event_response(e, *data_.string_ptr, conn, remaining_size, is_single);
+    return APIConnection::try_send_event_response(e, data_.const_char_ptr, conn, remaining_size, is_single);
   }
 #endif
 

esphome/components/api/api_connection.h

@@ -177,7 +177,7 @@ class APIConnection final : public APIServerConnection {
 #endif
 
 #ifdef USE_EVENT
-  void send_event(event::Event *event, const std::string &event_type);
+  void send_event(event::Event *event, const char *event_type);
 #endif
 
 #ifdef USE_UPDATE
@@ -450,7 +450,7 @@ class APIConnection final : public APIServerConnection {
                                                     bool is_single);
 #endif
 #ifdef USE_EVENT
-  static uint16_t try_send_event_response(event::Event *event, const std::string &event_type, APIConnection *conn,
+  static uint16_t try_send_event_response(event::Event *event, const char *event_type, APIConnection *conn,
                                           uint32_t remaining_size, bool is_single);
   static uint16_t try_send_event_info(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single);
 #endif
@@ -508,10 +508,8 @@ class APIConnection final : public APIServerConnection {
     // Constructor for function pointer
     MessageCreator(MessageCreatorPtr ptr) { data_.function_ptr = ptr; }
 
-    // Constructor for string state capture
-    explicit MessageCreator(const std::string &str_value) { data_.string_ptr = new std::string(str_value); }
-
-    // No destructor - cleanup must be called explicitly with message_type
+    // Constructor for const char * (Event types - no allocation needed)
+    explicit MessageCreator(const char *str_value) { data_.const_char_ptr = str_value; }
 
     // Delete copy operations - MessageCreator should only be moved
     MessageCreator(const MessageCreator &other) = delete;
@@ -523,8 +521,6 @@ class APIConnection final : public APIServerConnection {
     // Move assignment
     MessageCreator &operator=(MessageCreator &&other) noexcept {
       if (this != &other) {
-        // IMPORTANT: Caller must ensure cleanup() was called if this contains a string!
-        // In our usage, this happens in add_item() deduplication and vector::erase()
         data_ = other.data_;
         other.data_.function_ptr = nullptr;
       }
@@ -535,20 +531,10 @@ class APIConnection final : public APIServerConnection {
     uint16_t operator()(EntityBase *entity, APIConnection *conn, uint32_t remaining_size, bool is_single,
                         uint8_t message_type) const;
 
-    // Manual cleanup method - must be called before destruction for string types
-    void cleanup(uint8_t message_type) {
-#ifdef USE_EVENT
-      if (message_type == EventResponse::MESSAGE_TYPE && data_.string_ptr != nullptr) {
-        delete data_.string_ptr;
-        data_.string_ptr = nullptr;
-      }
-#endif
-    }
-
    private:
     union Data {
       MessageCreatorPtr function_ptr;
-      std::string *string_ptr;
+      const char *const_char_ptr;
     } data_;  // 4 bytes on 32-bit, 8 bytes on 64-bit - same as before
   };
 
@@ -568,42 +554,24 @@ class APIConnection final : public APIServerConnection {
     std::vector<BatchItem> items;
     uint32_t batch_start_time{0};
 
-   private:
-    // Helper to cleanup items from the beginning
-    void cleanup_items_(size_t count) {
-      for (size_t i = 0; i < count; i++) {
-        items[i].creator.cleanup(items[i].message_type);
-      }
-    }
-
-   public:
     DeferredBatch() {
       // Pre-allocate capacity for typical batch sizes to avoid reallocation
       items.reserve(8);
     }
 
-    ~DeferredBatch() {
-      // Ensure cleanup of any remaining items
-      clear();
-    }
-
     // Add item to the batch
     void add_item(EntityBase *entity, MessageCreator creator, uint8_t message_type, uint8_t estimated_size);
     // Add item to the front of the batch (for high priority messages like ping)
     void add_item_front(EntityBase *entity, MessageCreator creator, uint8_t message_type, uint8_t estimated_size);
 
-    // Clear all items with proper cleanup
+    // Clear all items
     void clear() {
-      cleanup_items_(items.size());
       items.clear();
       batch_start_time = 0;
     }
 
-    // Remove processed items from the front with proper cleanup
-    void remove_front(size_t count) {
-      cleanup_items_(count);
-      items.erase(items.begin(), items.begin() + count);
-    }
+    // Remove processed items from the front
+    void remove_front(size_t count) { items.erase(items.begin(), items.begin() + count); }
 
     bool empty() const { return items.empty(); }
     size_t size() const { return items.size(); }
@@ -682,21 +650,30 @@ class APIConnection final : public APIServerConnection {
   }
 #endif
 
+  // Helper to check if a message type should bypass batching
+  // Returns true if:
+  // 1. It's an UpdateStateResponse (always send immediately to handle cases where
+  //    the main loop is blocked, e.g., during OTA updates)
+  // 2. It's an EventResponse (events are edge-triggered - every occurrence matters)
+  // 3. OR: User has opted into immediate sending (should_try_send_immediately = true
+  //    AND batch_delay = 0)
+  inline bool should_send_immediately_(uint8_t message_type) const {
+    return (
+#ifdef USE_UPDATE
+        message_type == UpdateStateResponse::MESSAGE_TYPE ||
+#endif
+#ifdef USE_EVENT
+        message_type == EventResponse::MESSAGE_TYPE ||
+#endif
+        (this->flags_.should_try_send_immediately && this->get_batch_delay_ms_() == 0));
+  }
+
   // Helper method to send a message either immediately or via batching
+  // Tries immediate send if should_send_immediately_() returns true and buffer has space
+  // Falls back to batching if immediate send fails or isn't applicable
   bool send_message_smart_(EntityBase *entity, MessageCreatorPtr creator, uint8_t message_type,
                            uint8_t estimated_size) {
-    // Try to send immediately if:
-    // 1. It's an UpdateStateResponse (always send immediately to handle cases where
-    //    the main loop is blocked, e.g., during OTA updates)
-    // 2. OR: We should try to send immediately (should_try_send_immediately = true)
-    //        AND Batch delay is 0 (user has opted in to immediate sending)
-    // 3. AND: Buffer has space available
-    if ((
-#ifdef USE_UPDATE
-            message_type == UpdateStateResponse::MESSAGE_TYPE ||
-#endif
-            (this->flags_.should_try_send_immediately && this->get_batch_delay_ms_() == 0)) &&
-        this->helper_->can_write_without_blocking()) {
+    if (this->should_send_immediately_(message_type) && this->helper_->can_write_without_blocking()) {
       // Now actually encode and send
       if (creator(entity, this, MAX_BATCH_PACKET_SIZE, true) &&
           this->send_buffer(ProtoWriteBuffer{&this->parent_->get_shared_buffer_ref()}, message_type)) {
@@ -714,6 +691,27 @@ class APIConnection final : public APIServerConnection {
     return this->schedule_message_(entity, creator, message_type, estimated_size);
   }
 
+  // Overload for MessageCreator (used by events which need to capture event_type)
+  bool send_message_smart_(EntityBase *entity, MessageCreator creator, uint8_t message_type, uint8_t estimated_size) {
+    // Try to send immediately if message type should bypass batching and buffer has space
+    if (this->should_send_immediately_(message_type) && this->helper_->can_write_without_blocking()) {
+      // Now actually encode and send
+      if (creator(entity, this, MAX_BATCH_PACKET_SIZE, true, message_type) &&
+          this->send_buffer(ProtoWriteBuffer{&this->parent_->get_shared_buffer_ref()}, message_type)) {
+#ifdef HAS_PROTO_MESSAGE_DUMP
+        // Log the message in verbose mode
+        this->log_proto_message_(entity, creator, message_type);
+#endif
+        return true;
+      }
+
+      // If immediate send failed, fall through to batching
+    }
+
+    // Fall back to scheduled batching
+    return this->schedule_message_(entity, std::move(creator), message_type, estimated_size);
+  }
+
   // Helper function to schedule a deferred message with known message type
   bool schedule_message_(EntityBase *entity, MessageCreator creator, uint8_t message_type, uint8_t estimated_size) {
     this->deferred_batch_.add_item(entity, std::move(creator), message_type, estimated_size);

esphome/components/captive_portal/__init__.py

@@ -1,9 +1,12 @@
+import logging
+
 import esphome.codegen as cg
 from esphome.components import web_server_base
 from esphome.components.web_server_base import CONF_WEB_SERVER_BASE_ID
 from esphome.config_helpers import filter_source_files_from_platform
 import esphome.config_validation as cv
 from esphome.const import (
+    CONF_AP,
     CONF_ID,
     PLATFORM_BK72XX,
     PLATFORM_ESP32,
@@ -14,6 +17,10 @@ from esphome.const import (
 )
 from esphome.core import CORE, coroutine_with_priority
 from esphome.coroutine import CoroPriority
+import esphome.final_validate as fv
+from esphome.types import ConfigType
+
+_LOGGER = logging.getLogger(__name__)
 
 
 def AUTO_LOAD() -> list[str]:
@@ -50,6 +57,27 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
+def _final_validate(config: ConfigType) -> ConfigType:
+    full_config = fv.full_config.get()
+    wifi_conf = full_config.get("wifi")
+
+    if wifi_conf is None:
+        # This shouldn't happen due to DEPENDENCIES = ["wifi"], but check anyway
+        raise cv.Invalid("Captive portal requires the wifi component to be configured")
+
+    if CONF_AP not in wifi_conf:
+        _LOGGER.warning(
+            "Captive portal is enabled but no WiFi AP is configured. "
+            "The captive portal will not be accessible. "
+            "Add 'ap:' to your WiFi configuration to enable the captive portal."
+        )
+
+    return config
+
+
+FINAL_VALIDATE_SCHEMA = _final_validate
+
+
 @coroutine_with_priority(CoroPriority.CAPTIVE_PORTAL)
 async def to_code(config):
     paren = await cg.get_variable(config[CONF_WEB_SERVER_BASE_ID])

esphome/components/esp32/__init__.py

@@ -334,12 +334,14 @@ def _is_framework_url(source: str) -> str:
 #  - https://github.com/espressif/arduino-esp32/releases
 ARDUINO_FRAMEWORK_VERSION_LOOKUP = {
     "recommended": cv.Version(3, 3, 2),
-    "latest": cv.Version(3, 3, 2),
-    "dev": cv.Version(3, 3, 2),
+    "latest": cv.Version(3, 3, 4),
+    "dev": cv.Version(3, 3, 4),
 }
 ARDUINO_PLATFORM_VERSION_LOOKUP = {
-    cv.Version(3, 3, 2): cv.Version(55, 3, 31, "1"),
-    cv.Version(3, 3, 1): cv.Version(55, 3, 31, "1"),
+    cv.Version(3, 3, 4): cv.Version(55, 3, 31, "2"),
+    cv.Version(3, 3, 3): cv.Version(55, 3, 31, "2"),
+    cv.Version(3, 3, 2): cv.Version(55, 3, 31, "2"),
+    cv.Version(3, 3, 1): cv.Version(55, 3, 31, "2"),
     cv.Version(3, 3, 0): cv.Version(55, 3, 30, "2"),
     cv.Version(3, 2, 1): cv.Version(54, 3, 21, "2"),
     cv.Version(3, 2, 0): cv.Version(54, 3, 20),
@@ -357,8 +359,8 @@ ESP_IDF_FRAMEWORK_VERSION_LOOKUP = {
     "dev": cv.Version(5, 5, 1),
 }
 ESP_IDF_PLATFORM_VERSION_LOOKUP = {
-    cv.Version(5, 5, 1): cv.Version(55, 3, 31, "1"),
-    cv.Version(5, 5, 0): cv.Version(55, 3, 31, "1"),
+    cv.Version(5, 5, 1): cv.Version(55, 3, 31, "2"),
+    cv.Version(5, 5, 0): cv.Version(55, 3, 31, "2"),
     cv.Version(5, 4, 3): cv.Version(55, 3, 32),
     cv.Version(5, 4, 2): cv.Version(54, 3, 21, "2"),
     cv.Version(5, 4, 1): cv.Version(54, 3, 21, "2"),
@@ -373,14 +375,15 @@ ESP_IDF_PLATFORM_VERSION_LOOKUP = {
 # The platform-espressif32 version
 #  - https://github.com/pioarduino/platform-espressif32/releases
 PLATFORM_VERSION_LOOKUP = {
-    "recommended": cv.Version(55, 3, 31, "1"),
-    "latest": cv.Version(55, 3, 31, "1"),
-    "dev": cv.Version(55, 3, 31, "1"),
+    "recommended": cv.Version(55, 3, 31, "2"),
+    "latest": cv.Version(55, 3, 31, "2"),
+    "dev": cv.Version(55, 3, 31, "2"),
 }
 
 
-def _check_versions(value):
-    value = value.copy()
+def _check_versions(config):
+    config = config.copy()
+    value = config[CONF_FRAMEWORK]
 
     if value[CONF_VERSION] in PLATFORM_VERSION_LOOKUP:
         if CONF_SOURCE in value or CONF_PLATFORM_VERSION in value:
@@ -445,7 +448,7 @@ def _check_versions(value):
             "If there are connectivity or build issues please remove the manual version."
         )
 
-    return value
+    return config
 
 
 def _parse_platform_version(value):
@@ -495,6 +498,8 @@ def final_validate(config):
     from esphome.components.psram import DOMAIN as PSRAM_DOMAIN
 
     errs = []
+    conf_fw = config[CONF_FRAMEWORK]
+    advanced = conf_fw[CONF_ADVANCED]
     full_config = fv.full_config.get()
     if pio_options := full_config[CONF_ESPHOME].get(CONF_PLATFORMIO_OPTIONS):
         pio_flash_size_key = "board_upload.flash_size"
@@ -511,22 +516,14 @@ def final_validate(config):
                     f"Please specify {CONF_FLASH_SIZE} within esp32 configuration only"
                 )
             )
-    if (
-        config[CONF_VARIANT] != VARIANT_ESP32
-        and CONF_ADVANCED in (conf_fw := config[CONF_FRAMEWORK])
-        and CONF_IGNORE_EFUSE_MAC_CRC in conf_fw[CONF_ADVANCED]
-    ):
+    if config[CONF_VARIANT] != VARIANT_ESP32 and advanced[CONF_IGNORE_EFUSE_MAC_CRC]:
         errs.append(
             cv.Invalid(
                 f"'{CONF_IGNORE_EFUSE_MAC_CRC}' is not supported on {config[CONF_VARIANT]}",
                 path=[CONF_FRAMEWORK, CONF_ADVANCED, CONF_IGNORE_EFUSE_MAC_CRC],
             )
         )
-    if (
-        config.get(CONF_FRAMEWORK, {})
-        .get(CONF_ADVANCED, {})
-        .get(CONF_EXECUTE_FROM_PSRAM)
-    ):
+    if advanced[CONF_EXECUTE_FROM_PSRAM]:
         if config[CONF_VARIANT] != VARIANT_ESP32S3:
             errs.append(
                 cv.Invalid(
@@ -542,6 +539,17 @@ def final_validate(config):
                 )
             )
 
+    if (
+        config[CONF_FLASH_SIZE] == "32MB"
+        and "ota" in full_config
+        and not advanced[CONF_ENABLE_IDF_EXPERIMENTAL_FEATURES]
+    ):
+        errs.append(
+            cv.Invalid(
+                f"OTA with 32MB flash requires '{CONF_ENABLE_IDF_EXPERIMENTAL_FEATURES}' to be set in the '{CONF_ADVANCED}' section of the esp32 configuration",
+                path=[CONF_FLASH_SIZE],
+            )
+        )
     if errs:
         raise cv.MultipleInvalid(errs)
 
@@ -596,89 +604,74 @@ def _validate_idf_component(config: ConfigType) -> ConfigType:
 
 FRAMEWORK_ESP_IDF = "esp-idf"
 FRAMEWORK_ARDUINO = "arduino"
-FRAMEWORK_SCHEMA = cv.All(
-    cv.Schema(
-        {
-            cv.Optional(CONF_TYPE, default=FRAMEWORK_ARDUINO): cv.one_of(
-                FRAMEWORK_ESP_IDF, FRAMEWORK_ARDUINO
-            ),
-            cv.Optional(CONF_VERSION, default="recommended"): cv.string_strict,
-            cv.Optional(CONF_RELEASE): cv.string_strict,
-            cv.Optional(CONF_SOURCE): cv.string_strict,
-            cv.Optional(CONF_PLATFORM_VERSION): _parse_platform_version,
-            cv.Optional(CONF_SDKCONFIG_OPTIONS, default={}): {
-                cv.string_strict: cv.string_strict
-            },
-            cv.Optional(CONF_LOG_LEVEL, default="ERROR"): cv.one_of(
-                *LOG_LEVELS_IDF, upper=True
-            ),
-            cv.Optional(CONF_ADVANCED, default={}): cv.Schema(
-                {
-                    cv.Optional(CONF_ASSERTION_LEVEL): cv.one_of(
-                        *ASSERTION_LEVELS, upper=True
-                    ),
-                    cv.Optional(CONF_COMPILER_OPTIMIZATION, default="SIZE"): cv.one_of(
-                        *COMPILER_OPTIMIZATIONS, upper=True
-                    ),
-                    cv.Optional(CONF_ENABLE_IDF_EXPERIMENTAL_FEATURES): cv.boolean,
-                    cv.Optional(CONF_ENABLE_LWIP_ASSERT, default=True): cv.boolean,
-                    cv.Optional(
-                        CONF_IGNORE_EFUSE_CUSTOM_MAC, default=False
-                    ): cv.boolean,
-                    cv.Optional(CONF_IGNORE_EFUSE_MAC_CRC): cv.boolean,
-                    # DHCP server is needed for WiFi AP mode. When WiFi component is used,
-                    # it will handle disabling DHCP server when AP is not configured.
-                    # Default to false (disabled) when WiFi is not used.
-                    cv.OnlyWithout(
-                        CONF_ENABLE_LWIP_DHCP_SERVER, "wifi", default=False
-                    ): cv.boolean,
-                    cv.Optional(
-                        CONF_ENABLE_LWIP_MDNS_QUERIES, default=True
-                    ): cv.boolean,
-                    cv.Optional(
-                        CONF_ENABLE_LWIP_BRIDGE_INTERFACE, default=False
-                    ): cv.boolean,
-                    cv.Optional(
-                        CONF_ENABLE_LWIP_TCPIP_CORE_LOCKING, default=True
-                    ): cv.boolean,
-                    cv.Optional(
-                        CONF_ENABLE_LWIP_CHECK_THREAD_SAFETY, default=True
-                    ): cv.boolean,
-                    cv.Optional(
-                        CONF_DISABLE_LIBC_LOCKS_IN_IRAM, default=True
-                    ): cv.boolean,
-                    cv.Optional(
-                        CONF_DISABLE_VFS_SUPPORT_TERMIOS, default=True
-                    ): cv.boolean,
-                    cv.Optional(
-                        CONF_DISABLE_VFS_SUPPORT_SELECT, default=True
-                    ): cv.boolean,
-                    cv.Optional(CONF_DISABLE_VFS_SUPPORT_DIR, default=True): cv.boolean,
-                    cv.Optional(CONF_EXECUTE_FROM_PSRAM): cv.boolean,
-                    cv.Optional(CONF_LOOP_TASK_STACK_SIZE, default=8192): cv.int_range(
-                        min=8192, max=32768
-                    ),
-                }
-            ),
-            cv.Optional(CONF_COMPONENTS, default=[]): cv.ensure_list(
-                cv.All(
-                    cv.Schema(
-                        {
-                            cv.Required(CONF_NAME): cv.string_strict,
-                            cv.Optional(CONF_SOURCE): cv.git_ref,
-                            cv.Optional(CONF_REF): cv.string,
-                            cv.Optional(CONF_PATH): cv.string,
-                            cv.Optional(CONF_REFRESH): cv.All(
-                                cv.string, cv.source_refresh
-                            ),
-                        }
-                    ),
-                    _validate_idf_component,
-                )
-            ),
-        }
-    ),
-    _check_versions,
+FRAMEWORK_SCHEMA = cv.Schema(
+    {
+        cv.Optional(CONF_TYPE): cv.one_of(FRAMEWORK_ESP_IDF, FRAMEWORK_ARDUINO),
+        cv.Optional(CONF_VERSION, default="recommended"): cv.string_strict,
+        cv.Optional(CONF_RELEASE): cv.string_strict,
+        cv.Optional(CONF_SOURCE): cv.string_strict,
+        cv.Optional(CONF_PLATFORM_VERSION): _parse_platform_version,
+        cv.Optional(CONF_SDKCONFIG_OPTIONS, default={}): {
+            cv.string_strict: cv.string_strict
+        },
+        cv.Optional(CONF_LOG_LEVEL, default="ERROR"): cv.one_of(
+            *LOG_LEVELS_IDF, upper=True
+        ),
+        cv.Optional(CONF_ADVANCED, default={}): cv.Schema(
+            {
+                cv.Optional(CONF_ASSERTION_LEVEL): cv.one_of(
+                    *ASSERTION_LEVELS, upper=True
+                ),
+                cv.Optional(CONF_COMPILER_OPTIMIZATION, default="SIZE"): cv.one_of(
+                    *COMPILER_OPTIMIZATIONS, upper=True
+                ),
+                cv.Optional(
+                    CONF_ENABLE_IDF_EXPERIMENTAL_FEATURES, default=False
+                ): cv.boolean,
+                cv.Optional(CONF_ENABLE_LWIP_ASSERT, default=True): cv.boolean,
+                cv.Optional(CONF_IGNORE_EFUSE_CUSTOM_MAC, default=False): cv.boolean,
+                cv.Optional(CONF_IGNORE_EFUSE_MAC_CRC, default=False): cv.boolean,
+                # DHCP server is needed for WiFi AP mode. When WiFi component is used,
+                # it will handle disabling DHCP server when AP is not configured.
+                # Default to false (disabled) when WiFi is not used.
+                cv.OnlyWithout(
+                    CONF_ENABLE_LWIP_DHCP_SERVER, "wifi", default=False
+                ): cv.boolean,
+                cv.Optional(CONF_ENABLE_LWIP_MDNS_QUERIES, default=True): cv.boolean,
+                cv.Optional(
+                    CONF_ENABLE_LWIP_BRIDGE_INTERFACE, default=False
+                ): cv.boolean,
+                cv.Optional(
+                    CONF_ENABLE_LWIP_TCPIP_CORE_LOCKING, default=True
+                ): cv.boolean,
+                cv.Optional(
+                    CONF_ENABLE_LWIP_CHECK_THREAD_SAFETY, default=True
+                ): cv.boolean,
+                cv.Optional(CONF_DISABLE_LIBC_LOCKS_IN_IRAM, default=True): cv.boolean,
+                cv.Optional(CONF_DISABLE_VFS_SUPPORT_TERMIOS, default=True): cv.boolean,
+                cv.Optional(CONF_DISABLE_VFS_SUPPORT_SELECT, default=True): cv.boolean,
+                cv.Optional(CONF_DISABLE_VFS_SUPPORT_DIR, default=True): cv.boolean,
+                cv.Optional(CONF_EXECUTE_FROM_PSRAM, default=False): cv.boolean,
+                cv.Optional(CONF_LOOP_TASK_STACK_SIZE, default=8192): cv.int_range(
+                    min=8192, max=32768
+                ),
+            }
+        ),
+        cv.Optional(CONF_COMPONENTS, default=[]): cv.ensure_list(
+            cv.All(
+                cv.Schema(
+                    {
+                        cv.Required(CONF_NAME): cv.string_strict,
+                        cv.Optional(CONF_SOURCE): cv.git_ref,
+                        cv.Optional(CONF_REF): cv.string,
+                        cv.Optional(CONF_PATH): cv.string,
+                        cv.Optional(CONF_REFRESH): cv.All(cv.string, cv.source_refresh),
+                    }
+                ),
+                _validate_idf_component,
+            )
+        ),
+    }
 )
 
 
@@ -741,11 +734,11 @@ def _show_framework_migration_message(name: str, variant: str) -> None:
 
 
 def _set_default_framework(config):
+    config = config.copy()
     if CONF_FRAMEWORK not in config:
-        config = config.copy()
-
-        variant = config[CONF_VARIANT]
         config[CONF_FRAMEWORK] = FRAMEWORK_SCHEMA({})
+    if CONF_TYPE not in config[CONF_FRAMEWORK]:
+        variant = config[CONF_VARIANT]
         if variant in ARDUINO_ALLOWED_VARIANTS:
             config[CONF_FRAMEWORK][CONF_TYPE] = FRAMEWORK_ARDUINO
             _show_framework_migration_message(
@@ -785,6 +778,7 @@ CONFIG_SCHEMA = cv.All(
     ),
     _detect_variant,
     _set_default_framework,
+    _check_versions,
     set_core_data,
     cv.has_at_least_one_key(CONF_BOARD, CONF_VARIANT),
 )
@@ -803,9 +797,7 @@ def _configure_lwip_max_sockets(conf: dict) -> None:
     from esphome.components.socket import KEY_SOCKET_CONSUMERS
 
     # Check if user manually specified CONFIG_LWIP_MAX_SOCKETS
-    user_max_sockets = conf.get(CONF_SDKCONFIG_OPTIONS, {}).get(
-        "CONFIG_LWIP_MAX_SOCKETS"
-    )
+    user_max_sockets = conf[CONF_SDKCONFIG_OPTIONS].get("CONFIG_LWIP_MAX_SOCKETS")
 
     socket_consumers: dict[str, int] = CORE.data.get(KEY_SOCKET_CONSUMERS, {})
     total_sockets = sum(socket_consumers.values())
@@ -975,23 +967,18 @@ async def to_code(config):
     # WiFi component handles its own optimization when AP mode is not used
     # When using Arduino with Ethernet, DHCP server functions must be available
     # for the Network library to compile, even if not actively used
-    if (
-        CONF_ENABLE_LWIP_DHCP_SERVER in advanced
-        and not advanced[CONF_ENABLE_LWIP_DHCP_SERVER]
-        and not (
-            conf[CONF_TYPE] == FRAMEWORK_ARDUINO
-            and "ethernet" in CORE.loaded_integrations
-        )
+    if advanced.get(CONF_ENABLE_LWIP_DHCP_SERVER) is False and not (
+        conf[CONF_TYPE] == FRAMEWORK_ARDUINO and "ethernet" in CORE.loaded_integrations
     ):
         add_idf_sdkconfig_option("CONFIG_LWIP_DHCPS", False)
-    if not advanced.get(CONF_ENABLE_LWIP_MDNS_QUERIES, True):
+    if not advanced[CONF_ENABLE_LWIP_MDNS_QUERIES]:
         add_idf_sdkconfig_option("CONFIG_LWIP_DNS_SUPPORT_MDNS_QUERIES", False)
-    if not advanced.get(CONF_ENABLE_LWIP_BRIDGE_INTERFACE, False):
+    if not advanced[CONF_ENABLE_LWIP_BRIDGE_INTERFACE]:
         add_idf_sdkconfig_option("CONFIG_LWIP_BRIDGEIF_MAX_PORTS", 0)
 
     _configure_lwip_max_sockets(conf)
 
-    if advanced.get(CONF_EXECUTE_FROM_PSRAM, False):
+    if advanced[CONF_EXECUTE_FROM_PSRAM]:
         add_idf_sdkconfig_option("CONFIG_SPIRAM_FETCH_INSTRUCTIONS", True)
         add_idf_sdkconfig_option("CONFIG_SPIRAM_RODATA", True)
 
@@ -1002,23 +989,22 @@ async def to_code(config):
     # - select() on 4 sockets: ~190μs (Arduino/core locking) vs ~235μs (ESP-IDF default)
     # - Up to 200% slower under load when all operations queue through tcpip_thread
     # Enabling this makes ESP-IDF socket performance match Arduino framework.
-    if advanced.get(CONF_ENABLE_LWIP_TCPIP_CORE_LOCKING, True):
+    if advanced[CONF_ENABLE_LWIP_TCPIP_CORE_LOCKING]:
         add_idf_sdkconfig_option("CONFIG_LWIP_TCPIP_CORE_LOCKING", True)
-    if advanced.get(CONF_ENABLE_LWIP_CHECK_THREAD_SAFETY, True):
+    if advanced[CONF_ENABLE_LWIP_CHECK_THREAD_SAFETY]:
         add_idf_sdkconfig_option("CONFIG_LWIP_CHECK_THREAD_SAFETY", True)
 
     # Disable placing libc locks in IRAM to save RAM
     # This is safe for ESPHome since no IRAM ISRs (interrupts that run while cache is disabled)
     # use libc lock APIs. Saves approximately 1.3KB (1,356 bytes) of IRAM.
-    if advanced.get(CONF_DISABLE_LIBC_LOCKS_IN_IRAM, True):
+    if advanced[CONF_DISABLE_LIBC_LOCKS_IN_IRAM]:
         add_idf_sdkconfig_option("CONFIG_LIBC_LOCKS_PLACE_IN_IRAM", False)
 
     # Disable VFS support for termios (terminal I/O functions)
     # ESPHome doesn't use termios functions on ESP32 (only used in host UART driver).
     # Saves approximately 1.8KB of flash when disabled (default).
     add_idf_sdkconfig_option(
-        "CONFIG_VFS_SUPPORT_TERMIOS",
-        not advanced.get(CONF_DISABLE_VFS_SUPPORT_TERMIOS, True),
+        "CONFIG_VFS_SUPPORT_TERMIOS", not advanced[CONF_DISABLE_VFS_SUPPORT_TERMIOS]
     )
 
     # Disable VFS support for select() with file descriptors
@@ -1032,8 +1018,7 @@ async def to_code(config):
     else:
         # No component needs it - allow user to control (default: disabled)
         add_idf_sdkconfig_option(
-            "CONFIG_VFS_SUPPORT_SELECT",
-            not advanced.get(CONF_DISABLE_VFS_SUPPORT_SELECT, True),
+            "CONFIG_VFS_SUPPORT_SELECT", not advanced[CONF_DISABLE_VFS_SUPPORT_SELECT]
         )
 
     # Disable VFS support for directory functions (opendir, readdir, mkdir, etc.)
@@ -1046,8 +1031,7 @@ async def to_code(config):
     else:
         # No component needs it - allow user to control (default: disabled)
         add_idf_sdkconfig_option(
-            "CONFIG_VFS_SUPPORT_DIR",
-            not advanced.get(CONF_DISABLE_VFS_SUPPORT_DIR, True),
+            "CONFIG_VFS_SUPPORT_DIR", not advanced[CONF_DISABLE_VFS_SUPPORT_DIR]
         )
 
     cg.add_platformio_option("board_build.partitions", "partitions.csv")
@@ -1061,7 +1045,7 @@ async def to_code(config):
             add_idf_sdkconfig_option(flag, assertion_level == key)
 
     add_idf_sdkconfig_option("CONFIG_COMPILER_OPTIMIZATION_DEFAULT", False)
-    compiler_optimization = advanced.get(CONF_COMPILER_OPTIMIZATION)
+    compiler_optimization = advanced[CONF_COMPILER_OPTIMIZATION]
     for key, flag in COMPILER_OPTIMIZATIONS.items():
         add_idf_sdkconfig_option(flag, compiler_optimization == key)
 
@@ -1070,18 +1054,20 @@ async def to_code(config):
         conf[CONF_ADVANCED][CONF_ENABLE_LWIP_ASSERT],
     )
 
-    if advanced.get(CONF_IGNORE_EFUSE_MAC_CRC):
+    if advanced[CONF_IGNORE_EFUSE_MAC_CRC]:
         add_idf_sdkconfig_option("CONFIG_ESP_MAC_IGNORE_MAC_CRC_ERROR", True)
         add_idf_sdkconfig_option("CONFIG_ESP_PHY_CALIBRATION_AND_DATA_STORAGE", False)
-    if advanced.get(CONF_ENABLE_IDF_EXPERIMENTAL_FEATURES):
+    if advanced[CONF_ENABLE_IDF_EXPERIMENTAL_FEATURES]:
         _LOGGER.warning(
             "Using experimental features in ESP-IDF may result in unexpected failures."
         )
         add_idf_sdkconfig_option("CONFIG_IDF_EXPERIMENTAL_FEATURES", True)
+        if config[CONF_FLASH_SIZE] == "32MB":
+            add_idf_sdkconfig_option(
+                "CONFIG_BOOTLOADER_CACHE_32BIT_ADDR_QUAD_FLASH", True
+            )
 
-    cg.add_define(
-        "ESPHOME_LOOP_TASK_STACK_SIZE", advanced.get(CONF_LOOP_TASK_STACK_SIZE)
-    )
+    cg.add_define("ESPHOME_LOOP_TASK_STACK_SIZE", advanced[CONF_LOOP_TASK_STACK_SIZE])
 
     cg.add_define(
         "USE_ESP_IDF_VERSION_CODE",

esphome/components/esp32_ble/ble.cpp

@@ -634,11 +634,13 @@ void ESP32BLE::dump_config() {
         io_capability_s = "invalid";
         break;
     }
+    char mac_s[18];
+    format_mac_addr_upper(mac_address, mac_s);
     ESP_LOGCONFIG(TAG,
                   "BLE:\n"
                   "  MAC address: %s\n"
                   "  IO Capability: %s",
-                  format_mac_address_pretty(mac_address).c_str(), io_capability_s);
+                  mac_s, io_capability_s);
   } else {
     ESP_LOGCONFIG(TAG, "Bluetooth stack is not enabled");
   }

esphome/components/esp32_ble_tracker/automation.h

@@ -10,7 +10,7 @@ namespace esphome::esp32_ble_tracker {
 class ESPBTAdvertiseTrigger : public Trigger<const ESPBTDevice &>, public ESPBTDeviceListener {
  public:
   explicit ESPBTAdvertiseTrigger(ESP32BLETracker *parent) { parent->register_listener(this); }
-  void set_addresses(const std::vector<uint64_t> &addresses) { this->address_vec_ = addresses; }
+  void set_addresses(std::initializer_list<uint64_t> addresses) { this->address_vec_ = addresses; }
 
   bool parse_device(const ESPBTDevice &device) override {
     uint64_t u64_addr = device.address_uint64();

esphome/components/ethernet/ethernet_component.cpp

@@ -381,7 +381,10 @@ void EthernetComponent::dump_config() {
       break;
   }
 
-  ESP_LOGCONFIG(TAG, "Ethernet:");
+  ESP_LOGCONFIG(TAG,
+                "Ethernet:\n"
+                "  Connected: %s",
+                YESNO(this->is_connected()));
   this->dump_connect_params_();
 #ifdef USE_ETHERNET_SPI
   ESP_LOGCONFIG(TAG,

esphome/components/light/light_call.cpp

@@ -52,8 +52,10 @@ static void log_invalid_parameter(const char *name, const LogString *message) {
   }
 
 static const LogString *color_mode_to_human(ColorMode color_mode) {
-  if (color_mode == ColorMode::UNKNOWN)
-    return LOG_STR("Unknown");
+  if (color_mode == ColorMode::ON_OFF)
+    return LOG_STR("On/Off");
+  if (color_mode == ColorMode::BRIGHTNESS)
+    return LOG_STR("Brightness");
   if (color_mode == ColorMode::WHITE)
     return LOG_STR("White");
   if (color_mode == ColorMode::COLOR_TEMPERATURE)
@@ -68,7 +70,7 @@ static const LogString *color_mode_to_human(ColorMode color_mode) {
     return LOG_STR("RGB + cold/warm white");
   if (color_mode == ColorMode::RGB_COLOR_TEMPERATURE)
     return LOG_STR("RGB + color temperature");
-  return LOG_STR("");
+  return LOG_STR("Unknown");
 }
 
 // Helper to log percentage values
@@ -406,7 +408,7 @@ void LightCall::transform_parameters_() {
   }
 }
 ColorMode LightCall::compute_color_mode_() {
-  const auto &supported_modes = this->parent_->get_traits().get_supported_color_modes();
+  auto supported_modes = this->parent_->get_traits().get_supported_color_modes();
   int supported_count = supported_modes.size();
 
   // Some lights don't support any color modes (e.g. monochromatic light), leave it at unknown.

esphome/components/light/light_traits.h

@@ -18,7 +18,8 @@ class LightTraits {
  public:
   LightTraits() = default;
 
-  const ColorModeMask &get_supported_color_modes() const { return this->supported_color_modes_; }
+  // Return by value to avoid dangling reference when get_traits() returns a temporary
+  ColorModeMask get_supported_color_modes() const { return this->supported_color_modes_; }
   void set_supported_color_modes(ColorModeMask supported_color_modes) {
     this->supported_color_modes_ = supported_color_modes;
   }

esphome/components/network/ip_address.h

@@ -118,10 +118,10 @@ struct IPAddress {
   operator arduino_ns::IPAddress() const { return ip_addr_get_ip4_u32(&ip_addr_); }
 #endif
 
-  bool is_set() { return !ip_addr_isany(&ip_addr_); }  // NOLINT(readability-simplify-boolean-expr)
-  bool is_ip4() { return IP_IS_V4(&ip_addr_); }
-  bool is_ip6() { return IP_IS_V6(&ip_addr_); }
-  bool is_multicast() { return ip_addr_ismulticast(&ip_addr_); }
+  bool is_set() const { return !ip_addr_isany(&ip_addr_); }  // NOLINT(readability-simplify-boolean-expr)
+  bool is_ip4() const { return IP_IS_V4(&ip_addr_); }
+  bool is_ip6() const { return IP_IS_V6(&ip_addr_); }
+  bool is_multicast() const { return ip_addr_ismulticast(&ip_addr_); }
   std::string str() const { return str_lower_case(ipaddr_ntoa(&ip_addr_)); }
   bool operator==(const IPAddress &other) const { return ip_addr_cmp(&ip_addr_, &other.ip_addr_); }
   bool operator!=(const IPAddress &other) const { return !ip_addr_cmp(&ip_addr_, &other.ip_addr_); }

esphome/components/nrf52/__init__.py

@@ -103,6 +103,7 @@ nrf52_ns = cg.esphome_ns.namespace("nrf52")
 DeviceFirmwareUpdate = nrf52_ns.class_("DeviceFirmwareUpdate", cg.Component)
 
 CONF_DFU = "dfu"
+CONF_DCDC = "dcdc"
 CONF_REG0 = "reg0"
 CONF_UICR_ERASE = "uicr_erase"
 
@@ -121,6 +122,7 @@ CONFIG_SCHEMA = cv.All(
                     cv.Required(CONF_RESET_PIN): pins.gpio_output_pin_schema,
                 }
             ),
+            cv.Optional(CONF_DCDC, default=True): cv.boolean,
             cv.Optional(CONF_REG0): cv.Schema(
                 {
                     cv.Required(CONF_VOLTAGE): cv.All(
@@ -196,6 +198,7 @@ async def to_code(config: ConfigType) -> None:
 
     if dfu_config := config.get(CONF_DFU):
         CORE.add_job(_dfu_to_code, dfu_config)
+    zephyr_add_prj_conf("BOARD_ENABLE_DCDC", config[CONF_DCDC])
 
     if reg0_config := config.get(CONF_REG0):
         value = VOLTAGE_LEVELS.index(reg0_config[CONF_VOLTAGE])

esphome/components/thermostat/climate.py

@@ -945,6 +945,10 @@ async def to_code(config):
     cg.add(var.set_humidity_hysteresis(config[CONF_HUMIDITY_HYSTERESIS]))
 
     if CONF_PRESET in config:
+        # Separate standard and custom presets, and build preset config variables
+        standard_presets: list[tuple[cg.MockObj, cg.MockObj]] = []
+        custom_presets: list[tuple[str, cg.MockObj]] = []
+
         for preset_config in config[CONF_PRESET]:
             name = preset_config[CONF_NAME]
             standard_preset = None
@@ -987,9 +991,39 @@ async def to_code(config):
                 )
 
             if standard_preset is not None:
-                cg.add(var.set_preset_config(standard_preset, preset_target_variable))
+                standard_presets.append((standard_preset, preset_target_variable))
             else:
-                cg.add(var.set_custom_preset_config(name, preset_target_variable))
+                custom_presets.append((name, preset_target_variable))
+
+        # Build initializer list for standard presets
+        if standard_presets:
+            cg.add(
+                var.set_preset_config(
+                    [
+                        cg.StructInitializer(
+                            thermostat_ns.struct("ThermostatPresetEntry"),
+                            ("preset", preset),
+                            ("config", preset_var),
+                        )
+                        for preset, preset_var in standard_presets
+                    ]
+                )
+            )
+
+        # Build initializer list for custom presets
+        if custom_presets:
+            cg.add(
+                var.set_custom_preset_config(
+                    [
+                        cg.StructInitializer(
+                            thermostat_ns.struct("ThermostatCustomPresetEntry"),
+                            ("name", cg.RawExpression(f'"{name}"')),
+                            ("config", preset_var),
+                        )
+                        for name, preset_var in custom_presets
+                    ]
+                )
+            )
 
     if CONF_DEFAULT_PRESET in config:
         default_preset_name = config[CONF_DEFAULT_PRESET]

esphome/components/thermostat/thermostat_climate.cpp

@@ -53,8 +53,8 @@ void ThermostatClimate::setup() {
   if (use_default_preset) {
     if (this->default_preset_ != climate::ClimatePreset::CLIMATE_PRESET_NONE) {
       this->change_preset_(this->default_preset_);
-    } else if (!this->default_custom_preset_.empty()) {
-      this->change_custom_preset_(this->default_custom_preset_.c_str());
+    } else if (this->default_custom_preset_ != nullptr) {
+      this->change_custom_preset_(this->default_custom_preset_);
     }
   }
 
@@ -319,16 +319,16 @@ climate::ClimateTraits ThermostatClimate::traits() {
   if (this->supports_swing_mode_vertical_)
     traits.add_supported_swing_mode(climate::CLIMATE_SWING_VERTICAL);
 
-  for (auto &it : this->preset_config_) {
-    traits.add_supported_preset(it.first);
+  for (const auto &entry : this->preset_config_) {
+    traits.add_supported_preset(entry.preset);
   }
 
-  // Extract custom preset names from the custom_preset_config_ map
+  // Extract custom preset names from the custom_preset_config_ vector
   if (!this->custom_preset_config_.empty()) {
     std::vector<const char *> custom_preset_names;
     custom_preset_names.reserve(this->custom_preset_config_.size());
-    for (const auto &it : this->custom_preset_config_) {
-      custom_preset_names.push_back(it.first.c_str());
+    for (const auto &entry : this->custom_preset_config_) {
+      custom_preset_names.push_back(entry.name);
     }
     traits.set_supported_custom_presets(custom_preset_names);
   }
@@ -1154,12 +1154,18 @@ void ThermostatClimate::dump_preset_config_(const char *preset_name, const Therm
 }
 
 void ThermostatClimate::change_preset_(climate::ClimatePreset preset) {
-  auto config = this->preset_config_.find(preset);
+  // Linear search through preset configurations
+  const ThermostatClimateTargetTempConfig *config = nullptr;
+  for (const auto &entry : this->preset_config_) {
+    if (entry.preset == preset) {
+      config = &entry.config;
+      break;
+    }
+  }
 
-  if (config != this->preset_config_.end()) {
+  if (config != nullptr) {
     ESP_LOGV(TAG, "Preset %s requested", LOG_STR_ARG(climate::climate_preset_to_string(preset)));
-    if (this->change_preset_internal_(config->second) || (!this->preset.has_value()) ||
-        this->preset.value() != preset) {
+    if (this->change_preset_internal_(*config) || (!this->preset.has_value()) || this->preset.value() != preset) {
       // Fire any preset changed trigger if defined
       Trigger<> *trig = this->preset_change_trigger_;
       this->set_preset_(preset);
@@ -1178,11 +1184,18 @@ void ThermostatClimate::change_preset_(climate::ClimatePreset preset) {
 }
 
 void ThermostatClimate::change_custom_preset_(const char *custom_preset) {
-  auto config = this->custom_preset_config_.find(custom_preset);
+  // Linear search through custom preset configurations
+  const ThermostatClimateTargetTempConfig *config = nullptr;
+  for (const auto &entry : this->custom_preset_config_) {
+    if (strcmp(entry.name, custom_preset) == 0) {
+      config = &entry.config;
+      break;
+    }
+  }
 
-  if (config != this->custom_preset_config_.end()) {
+  if (config != nullptr) {
     ESP_LOGV(TAG, "Custom preset %s requested", custom_preset);
-    if (this->change_preset_internal_(config->second) || !this->has_custom_preset() ||
+    if (this->change_preset_internal_(*config) || !this->has_custom_preset() ||
         strcmp(this->get_custom_preset(), custom_preset) != 0) {
       // Fire any preset changed trigger if defined
       Trigger<> *trig = this->preset_change_trigger_;
@@ -1247,14 +1260,12 @@ bool ThermostatClimate::change_preset_internal_(const ThermostatClimateTargetTem
   return something_changed;
 }
 
-void ThermostatClimate::set_preset_config(climate::ClimatePreset preset,
-                                          const ThermostatClimateTargetTempConfig &config) {
-  this->preset_config_[preset] = config;
+void ThermostatClimate::set_preset_config(std::initializer_list<PresetEntry> presets) {
+  this->preset_config_ = presets;
 }
 
-void ThermostatClimate::set_custom_preset_config(const std::string &name,
-                                                 const ThermostatClimateTargetTempConfig &config) {
-  this->custom_preset_config_[name] = config;
+void ThermostatClimate::set_custom_preset_config(std::initializer_list<CustomPresetEntry> presets) {
+  this->custom_preset_config_ = presets;
 }
 
 ThermostatClimate::ThermostatClimate()
@@ -1293,8 +1304,16 @@ ThermostatClimate::ThermostatClimate()
       humidity_control_humidify_action_trigger_(new Trigger<>()),
       humidity_control_off_action_trigger_(new Trigger<>()) {}
 
-void ThermostatClimate::set_default_preset(const std::string &custom_preset) {
-  this->default_custom_preset_ = custom_preset;
+void ThermostatClimate::set_default_preset(const char *custom_preset) {
+  // Find the preset in custom_preset_config_ and store pointer from there
+  for (const auto &entry : this->custom_preset_config_) {
+    if (strcmp(entry.name, custom_preset) == 0) {
+      this->default_custom_preset_ = entry.name;
+      return;
+    }
+  }
+  // If not found, it will be caught during validation
+  this->default_custom_preset_ = nullptr;
 }
 
 void ThermostatClimate::set_default_preset(climate::ClimatePreset preset) { this->default_preset_ = preset; }
@@ -1605,19 +1624,22 @@ void ThermostatClimate::dump_config() {
 
   if (!this->preset_config_.empty()) {
     ESP_LOGCONFIG(TAG, "  Supported PRESETS:");
-    for (auto &it : this->preset_config_) {
-      const auto *preset_name = LOG_STR_ARG(climate::climate_preset_to_string(it.first));
-      ESP_LOGCONFIG(TAG, "    %s:%s", preset_name, it.first == this->default_preset_ ? " (default)" : "");
-      this->dump_preset_config_(preset_name, it.second);
+    for (const auto &entry : this->preset_config_) {
+      const auto *preset_name = LOG_STR_ARG(climate::climate_preset_to_string(entry.preset));
+      ESP_LOGCONFIG(TAG, "    %s:%s", preset_name, entry.preset == this->default_preset_ ? " (default)" : "");
+      this->dump_preset_config_(preset_name, entry.config);
     }
   }
 
   if (!this->custom_preset_config_.empty()) {
     ESP_LOGCONFIG(TAG, "  Supported CUSTOM PRESETS:");
-    for (auto &it : this->custom_preset_config_) {
-      const auto *preset_name = it.first.c_str();
-      ESP_LOGCONFIG(TAG, "    %s:%s", preset_name, it.first == this->default_custom_preset_ ? " (default)" : "");
-      this->dump_preset_config_(preset_name, it.second);
+    for (const auto &entry : this->custom_preset_config_) {
+      const auto *preset_name = entry.name;
+      ESP_LOGCONFIG(TAG, "    %s:%s", preset_name,
+                    (this->default_custom_preset_ != nullptr && strcmp(entry.name, this->default_custom_preset_) == 0)
+                        ? " (default)"
+                        : "");
+      this->dump_preset_config_(preset_name, entry.config);
     }
   }
 }

esphome/components/thermostat/thermostat_climate.h

@@ -3,12 +3,12 @@
 #include "esphome/core/automation.h"
 #include "esphome/core/component.h"
 #include "esphome/core/hal.h"
+#include "esphome/core/helpers.h"
 #include "esphome/components/climate/climate.h"
 #include "esphome/components/sensor/sensor.h"
 
 #include <array>
 #include <cinttypes>
-#include <map>
 
 namespace esphome {
 namespace thermostat {
@@ -72,14 +72,29 @@ struct ThermostatClimateTargetTempConfig {
   optional<climate::ClimateMode> mode_{};
 };
 
+/// Entry for standard preset lookup
+struct ThermostatPresetEntry {
+  climate::ClimatePreset preset;
+  ThermostatClimateTargetTempConfig config;
+};
+
+/// Entry for custom preset lookup
+struct ThermostatCustomPresetEntry {
+  const char *name;
+  ThermostatClimateTargetTempConfig config;
+};
+
 class ThermostatClimate : public climate::Climate, public Component {
  public:
+  using PresetEntry = ThermostatPresetEntry;
+  using CustomPresetEntry = ThermostatCustomPresetEntry;
+
   ThermostatClimate();
   void setup() override;
   void dump_config() override;
   void loop() override;
 
-  void set_default_preset(const std::string &custom_preset);
+  void set_default_preset(const char *custom_preset);
   void set_default_preset(climate::ClimatePreset preset);
   void set_on_boot_restore_from(OnBootRestoreFrom on_boot_restore_from);
   void set_set_point_minimum_differential(float differential);
@@ -131,8 +146,8 @@ class ThermostatClimate : public climate::Climate, public Component {
   void set_supports_humidification(bool supports_humidification);
   void set_supports_two_points(bool supports_two_points);
 
-  void set_preset_config(climate::ClimatePreset preset, const ThermostatClimateTargetTempConfig &config);
-  void set_custom_preset_config(const std::string &name, const ThermostatClimateTargetTempConfig &config);
+  void set_preset_config(std::initializer_list<PresetEntry> presets);
+  void set_custom_preset_config(std::initializer_list<CustomPresetEntry> presets);
 
   Trigger<> *get_cool_action_trigger() const;
   Trigger<> *get_supplemental_cool_action_trigger() const;
@@ -516,9 +531,6 @@ class ThermostatClimate : public climate::Climate, public Component {
   Trigger<> *prev_swing_mode_trigger_{nullptr};
   Trigger<> *prev_humidity_control_trigger_{nullptr};
 
-  /// Default custom preset to use on start up
-  std::string default_custom_preset_{};
-
   /// Climate action timers
   std::array<ThermostatClimateTimer, THERMOSTAT_TIMER_COUNT> timer_{
       ThermostatClimateTimer(false, 0, 0, std::bind(&ThermostatClimate::cooling_max_run_time_timer_callback_, this)),
@@ -534,9 +546,12 @@ class ThermostatClimate : public climate::Climate, public Component {
   };
 
   /// The set of standard preset configurations this thermostat supports (Eg. AWAY, ECO, etc)
-  std::map<climate::ClimatePreset, ThermostatClimateTargetTempConfig> preset_config_{};
+  FixedVector<PresetEntry> preset_config_{};
   /// The set of custom preset configurations this thermostat supports (eg. "My Custom Preset")
-  std::map<std::string, ThermostatClimateTargetTempConfig> custom_preset_config_{};
+  FixedVector<CustomPresetEntry> custom_preset_config_{};
+  /// Default custom preset to use on start up (pointer to entry in custom_preset_config_)
+ private:
+  const char *default_custom_preset_{nullptr};
 };
 
 }  // namespace thermostat

esphome/components/uart/__init__.py

@@ -1,3 +1,4 @@
+from logging import getLogger
 import math
 import re
 
@@ -35,6 +36,8 @@ from esphome.core import CORE, ID
 import esphome.final_validate as fv
 from esphome.yaml_util import make_data_base
 
+_LOGGER = getLogger(__name__)
+
 CODEOWNERS = ["@esphome/core"]
 uart_ns = cg.esphome_ns.namespace("uart")
 UARTComponent = uart_ns.class_("UARTComponent")
@@ -130,6 +133,21 @@ def validate_host_config(config):
     return config
 
 
+def validate_rx_buffer_size(config):
+    if CORE.is_esp32:
+        # ESP32 UART hardware FIFO is 128 bytes (LP UART is 16 bytes, but we use 128 as safe minimum)
+        # rx_buffer_size must be greater than the hardware FIFO length
+        min_buffer_size = 128
+        if config[CONF_RX_BUFFER_SIZE] <= min_buffer_size:
+            _LOGGER.warning(
+                "UART rx_buffer_size (%d bytes) is too small and must be greater than the hardware "
+                "FIFO size (%d bytes). The buffer size will be automatically adjusted at runtime.",
+                config[CONF_RX_BUFFER_SIZE],
+                min_buffer_size,
+            )
+    return config
+
+
 def _uart_declare_type(value):
     if CORE.is_esp8266:
         return cv.declare_id(ESP8266UartComponent)(value)
@@ -247,6 +265,7 @@ CONFIG_SCHEMA = cv.All(
     ).extend(cv.COMPONENT_SCHEMA),
     cv.has_at_least_one_key(CONF_TX_PIN, CONF_RX_PIN, CONF_PORT),
     validate_host_config,
+    validate_rx_buffer_size,
 )
 
 

esphome/components/uart/uart_component_esp_idf.cpp

@@ -91,6 +91,16 @@ void IDFUARTComponent::setup() {
   this->uart_num_ = static_cast<uart_port_t>(next_uart_num++);
   this->lock_ = xSemaphoreCreateMutex();
 
+#if (SOC_UART_LP_NUM >= 1)
+  size_t fifo_len = ((this->uart_num_ < SOC_UART_HP_NUM) ? SOC_UART_FIFO_LEN : SOC_LP_UART_FIFO_LEN);
+#else
+  size_t fifo_len = SOC_UART_FIFO_LEN;
+#endif
+  if (this->rx_buffer_size_ <= fifo_len) {
+    ESP_LOGW(TAG, "rx_buffer_size is too small, must be greater than %zu", fifo_len);
+    this->rx_buffer_size_ = fifo_len * 2;
+  }
+
   xSemaphoreTake(this->lock_, portMAX_DELAY);
 
   this->load_settings(false);
@@ -237,8 +247,12 @@ void IDFUARTComponent::set_rx_timeout(size_t rx_timeout) {
 
 void IDFUARTComponent::write_array(const uint8_t *data, size_t len) {
   xSemaphoreTake(this->lock_, portMAX_DELAY);
-  uart_write_bytes(this->uart_num_, data, len);
+  int32_t write_len = uart_write_bytes(this->uart_num_, data, len);
   xSemaphoreGive(this->lock_);
+  if (write_len != (int32_t) len) {
+    ESP_LOGW(TAG, "uart_write_bytes failed: %d != %zu", write_len, len);
+    this->mark_failed();
+  }
 #ifdef USE_UART_DEBUGGER
   for (size_t i = 0; i < len; i++) {
     this->debug_callback_.call(UART_DIRECTION_TX, data[i]);
@@ -267,6 +281,7 @@ bool IDFUARTComponent::peek_byte(uint8_t *data) {
 
 bool IDFUARTComponent::read_array(uint8_t *data, size_t len) {
   size_t length_to_read = len;
+  int32_t read_len = 0;
   if (!this->check_read_timeout_(len))
     return false;
   xSemaphoreTake(this->lock_, portMAX_DELAY);
@@ -277,25 +292,31 @@ bool IDFUARTComponent::read_array(uint8_t *data, size_t len) {
     this->has_peek_ = false;
   }
   if (length_to_read > 0)
-    uart_read_bytes(this->uart_num_, data, length_to_read, 20 / portTICK_PERIOD_MS);
+    read_len = uart_read_bytes(this->uart_num_, data, length_to_read, 20 / portTICK_PERIOD_MS);
   xSemaphoreGive(this->lock_);
 #ifdef USE_UART_DEBUGGER
   for (size_t i = 0; i < len; i++) {
     this->debug_callback_.call(UART_DIRECTION_RX, data[i]);
   }
 #endif
-  return true;
+  return read_len == (int32_t) length_to_read;
 }
 
 int IDFUARTComponent::available() {
-  size_t available;
+  size_t available = 0;
+  esp_err_t err;
 
   xSemaphoreTake(this->lock_, portMAX_DELAY);
-  uart_get_buffered_data_len(this->uart_num_, &available);
-  if (this->has_peek_)
-    available++;
+  err = uart_get_buffered_data_len(this->uart_num_, &available);
   xSemaphoreGive(this->lock_);
 
+  if (err != ESP_OK) {
+    ESP_LOGW(TAG, "uart_get_buffered_data_len failed: %s", esp_err_to_name(err));
+    this->mark_failed();
+  }
+  if (this->has_peek_) {
+    available++;
+  }
   return available;
 }
 

esphome/components/wifi/__init__.py

@@ -12,7 +12,6 @@ from esphome.components.network import (
 from esphome.components.psram import is_guaranteed as psram_is_guaranteed
 from esphome.config_helpers import filter_source_files_from_platform
 import esphome.config_validation as cv
-from esphome.config_validation import only_with_esp_idf
 from esphome.const import (
     CONF_AP,
     CONF_BSSID,
@@ -352,7 +351,7 @@ CONFIG_SCHEMA = cv.All(
                 single=True
             ),
             cv.Optional(CONF_USE_PSRAM): cv.All(
-                only_with_esp_idf, cv.requires_component("psram"), cv.boolean
+                cv.only_on_esp32, cv.requires_component("psram"), cv.boolean
             ),
         }
     ),

esphome/components/wifi/wifi_component.cpp

@@ -465,6 +465,8 @@ void WiFiComponent::loop() {
         if (!this->is_connected()) {
           ESP_LOGW(TAG, "Connection lost; reconnecting");
           this->state_ = WIFI_COMPONENT_STATE_STA_CONNECTING;
+          // Clear error flag before reconnecting so first attempt is not seen as immediate failure
+          this->error_from_callback_ = false;
           this->retry_connect();
         } else {
           this->status_clear_warning();
@@ -668,25 +670,25 @@ void WiFiComponent::save_wifi_sta(const std::string &ssid, const std::string &pa
 
 void WiFiComponent::start_connecting(const WiFiAP &ap) {
   // Log connection attempt at INFO level with priority
-  std::string bssid_formatted;
+  char bssid_s[18];
   int8_t priority = 0;
 
   if (ap.get_bssid().has_value()) {
-    bssid_formatted = format_mac_address_pretty(ap.get_bssid().value().data());
+    format_mac_addr_upper(ap.get_bssid().value().data(), bssid_s);
     priority = this->get_sta_priority(ap.get_bssid().value());
   }
 
   ESP_LOGI(TAG,
            "Connecting to " LOG_SECRET("'%s'") " " LOG_SECRET("(%s)") " (priority %d, attempt %u/%u in phase %s)...",
-           ap.get_ssid().c_str(), ap.get_bssid().has_value() ? bssid_formatted.c_str() : LOG_STR_LITERAL("any"),
-           priority, this->num_retried_ + 1, get_max_retries_for_phase(this->retry_phase_),
+           ap.get_ssid().c_str(), ap.get_bssid().has_value() ? bssid_s : LOG_STR_LITERAL("any"), priority,
+           this->num_retried_ + 1, get_max_retries_for_phase(this->retry_phase_),
            LOG_STR_ARG(retry_phase_to_log_string(this->retry_phase_)));
 
 #ifdef ESPHOME_LOG_HAS_VERBOSE
   ESP_LOGV(TAG, "Connection Params:");
   ESP_LOGV(TAG, "  SSID: '%s'", ap.get_ssid().c_str());
   if (ap.get_bssid().has_value()) {
-    ESP_LOGV(TAG, "  BSSID: %s", format_mac_address_pretty(ap.get_bssid()->data()).c_str());
+    ESP_LOGV(TAG, "  BSSID: %s", bssid_s);
   } else {
     ESP_LOGV(TAG, "  BSSID: Not Set");
   }
@@ -743,6 +745,14 @@ void WiFiComponent::start_connecting(const WiFiAP &ap) {
 }
 
 const LogString *get_signal_bars(int8_t rssi) {
+  // Check for disconnected sentinel value first
+  if (rssi == WIFI_RSSI_DISCONNECTED) {
+    // MULTIPLICATION SIGN
+    // Unicode: U+00D7, UTF-8: C3 97
+    return LOG_STR("\033[0;31m"  // red
+                   "\xc3\x97\xc3\x97\xc3\x97\xc3\x97"
+                   "\033[0m");
+  }
   // LOWER ONE QUARTER BLOCK
   // Unicode: U+2582, UTF-8: E2 96 82
   // LOWER HALF BLOCK
@@ -787,6 +797,8 @@ const LogString *get_signal_bars(int8_t rssi) {
 
 void WiFiComponent::print_connect_params_() {
   bssid_t bssid = wifi_bssid();
+  char bssid_s[18];
+  format_mac_addr_upper(bssid.data(), bssid_s);
 
   ESP_LOGCONFIG(TAG, "  Local MAC: %s", get_mac_address_pretty().c_str());
   if (this->is_disabled()) {
@@ -809,9 +821,9 @@ void WiFiComponent::print_connect_params_() {
                                                                            "  Gateway: %s\n"
                                                                            "  DNS1: %s\n"
                                                                            "  DNS2: %s",
-                wifi_ssid().c_str(), format_mac_address_pretty(bssid.data()).c_str(), App.get_name().c_str(), rssi,
-                LOG_STR_ARG(get_signal_bars(rssi)), get_wifi_channel(), wifi_subnet_mask_().str().c_str(),
-                wifi_gateway_ip_().str().c_str(), wifi_dns_ip_(0).str().c_str(), wifi_dns_ip_(1).str().c_str());
+                wifi_ssid().c_str(), bssid_s, App.get_name().c_str(), rssi, LOG_STR_ARG(get_signal_bars(rssi)),
+                get_wifi_channel(), wifi_subnet_mask_().str().c_str(), wifi_gateway_ip_().str().c_str(),
+                wifi_dns_ip_(0).str().c_str(), wifi_dns_ip_(1).str().c_str());
 #ifdef ESPHOME_LOG_HAS_VERBOSE
   if (const WiFiAP *config = this->get_selected_sta_(); config && config->get_bssid().has_value()) {
     ESP_LOGV(TAG, "  Priority: %d", this->get_sta_priority(*config->get_bssid()));
@@ -1022,7 +1034,10 @@ void WiFiComponent::check_scanning_finished() {
 }
 
 void WiFiComponent::dump_config() {
-  ESP_LOGCONFIG(TAG, "WiFi:");
+  ESP_LOGCONFIG(TAG,
+                "WiFi:\n"
+                "  Connected: %s",
+                YESNO(this->is_connected()));
   this->print_connect_params_();
 }
 
@@ -1047,6 +1062,10 @@ void WiFiComponent::check_connecting_finished() {
     // Reset to initial phase on successful connection (don't log transition, just reset state)
     this->retry_phase_ = WiFiRetryPhase::INITIAL_CONNECT;
     this->num_retried_ = 0;
+    // Ensure next connection attempt does not inherit error state
+    // so when WiFi disconnects later we start fresh and don't see
+    // the first connection as a failure.
+    this->error_from_callback_ = false;
 
     this->print_connect_params_();
 
@@ -1133,6 +1152,11 @@ WiFiRetryPhase WiFiComponent::determine_next_phase_() {
         return WiFiRetryPhase::FAST_CONNECT_CYCLING_APS;  // Move to next AP
       }
 #endif
+      // Check if we should try explicit hidden networks before scanning
+      // This handles reconnection after connection loss where first network is hidden
+      if (!this->sta_.empty() && this->sta_[0].get_hidden()) {
+        return WiFiRetryPhase::EXPLICIT_HIDDEN;
+      }
       // No more APs to try, fall back to scan
       return WiFiRetryPhase::SCAN_CONNECTING;
 
@@ -1390,8 +1414,10 @@ void WiFiComponent::log_and_adjust_priority_for_failed_connect_() {
         (old_priority > std::numeric_limits<int8_t>::min()) ? (old_priority - 1) : std::numeric_limits<int8_t>::min();
     this->set_sta_priority(failed_bssid.value(), new_priority);
   }
-  ESP_LOGD(TAG, "Failed " LOG_SECRET("'%s'") " " LOG_SECRET("(%s)") ", priority %d → %d", ssid.c_str(),
-           format_mac_address_pretty(failed_bssid.value().data()).c_str(), old_priority, new_priority);
+  char bssid_s[18];
+  format_mac_addr_upper(failed_bssid.value().data(), bssid_s);
+  ESP_LOGD(TAG, "Failed " LOG_SECRET("'%s'") " " LOG_SECRET("(%s)") ", priority %d → %d", ssid.c_str(), bssid_s,
+           old_priority, new_priority);
 
   // After adjusting priority, check if all priorities are now at minimum
   // If so, clear the vector to save memory and reset for fresh start

esphome/components/wifi/wifi_component.h

@@ -52,6 +52,9 @@ extern "C" {
 namespace esphome {
 namespace wifi {
 
+/// Sentinel value for RSSI when WiFi is not connected
+static constexpr int8_t WIFI_RSSI_DISCONNECTED = -127;
+
 struct SavedWifiSettings {
   char ssid[33];
   char password[65];
@@ -426,7 +429,7 @@ class WiFiComponent : public Component {
   bool wifi_sta_pre_setup_();
   bool wifi_apply_output_power_(float output_power);
   bool wifi_apply_power_save_();
-  bool wifi_sta_ip_config_(optional<ManualIP> manual_ip);
+  bool wifi_sta_ip_config_(const optional<ManualIP> &manual_ip);
   bool wifi_apply_hostname_();
   bool wifi_sta_connect_(const WiFiAP &ap);
   void wifi_pre_setup_();
@@ -434,7 +437,7 @@ class WiFiComponent : public Component {
   bool wifi_scan_start_(bool passive);
 
 #ifdef USE_WIFI_AP
-  bool wifi_ap_ip_config_(optional<ManualIP> manual_ip);
+  bool wifi_ap_ip_config_(const optional<ManualIP> &manual_ip);
   bool wifi_start_ap_(const WiFiAP &ap);
 #endif  // USE_WIFI_AP
 

esphome/components/wifi/wifi_component_esp8266.cpp

@@ -117,7 +117,7 @@ void netif_set_addr(struct netif *netif, const ip4_addr_t *ip, const ip4_addr_t
 };
 #endif
 
-bool WiFiComponent::wifi_sta_ip_config_(optional<ManualIP> manual_ip) {
+bool WiFiComponent::wifi_sta_ip_config_(const optional<ManualIP> &manual_ip) {
   // enable STA
   if (!this->wifi_mode_(true, {}))
     return false;
@@ -525,8 +525,10 @@ void WiFiComponent::wifi_event_callback(System_Event_t *event) {
         ESP_LOGW(TAG, "Disconnected ssid='%s' reason='Probe Request Unsuccessful'", buf);
         s_sta_connect_not_found = true;
       } else {
-        ESP_LOGW(TAG, "Disconnected ssid='%s' bssid=" LOG_SECRET("%s") " reason='%s'", buf,
-                 format_mac_address_pretty(it.bssid).c_str(), LOG_STR_ARG(get_disconnect_reason_str(it.reason)));
+        char bssid_s[18];
+        format_mac_addr_upper(it.bssid, bssid_s);
+        ESP_LOGW(TAG, "Disconnected ssid='%s' bssid=" LOG_SECRET("%s") " reason='%s'", buf, bssid_s,
+                 LOG_STR_ARG(get_disconnect_reason_str(it.reason)));
         s_sta_connect_error = true;
       }
       s_sta_connected = false;
@@ -730,7 +732,7 @@ void WiFiComponent::wifi_scan_done_callback_(void *arg, STATUS status) {
 }
 
 #ifdef USE_WIFI_AP
-bool WiFiComponent::wifi_ap_ip_config_(optional<ManualIP> manual_ip) {
+bool WiFiComponent::wifi_ap_ip_config_(const optional<ManualIP> &manual_ip) {
   // enable AP
   if (!this->wifi_mode_({}, true))
     return false;
@@ -870,7 +872,7 @@ bssid_t WiFiComponent::wifi_bssid() {
   return bssid;
 }
 std::string WiFiComponent::wifi_ssid() { return WiFi.SSID().c_str(); }
-int8_t WiFiComponent::wifi_rssi() { return WiFi.RSSI(); }
+int8_t WiFiComponent::wifi_rssi() { return WiFi.status() == WL_CONNECTED ? WiFi.RSSI() : WIFI_RSSI_DISCONNECTED; }
 int32_t WiFiComponent::get_wifi_channel() { return WiFi.channel(); }
 network::IPAddress WiFiComponent::wifi_subnet_mask_() { return {(const ip_addr_t *) WiFi.subnetMask()}; }
 network::IPAddress WiFiComponent::wifi_gateway_ip_() { return {(const ip_addr_t *) WiFi.gatewayIP()}; }

esphome/components/wifi/wifi_component_esp_idf.cpp

@@ -487,7 +487,7 @@ bool WiFiComponent::wifi_sta_connect_(const WiFiAP &ap) {
   return true;
 }
 
-bool WiFiComponent::wifi_sta_ip_config_(optional<ManualIP> manual_ip) {
+bool WiFiComponent::wifi_sta_ip_config_(const optional<ManualIP> &manual_ip) {
   // enable STA
   if (!this->wifi_mode_(true, {}))
     return false;
@@ -746,8 +746,10 @@ void WiFiComponent::wifi_process_event_(IDFWiFiEvent *data) {
       ESP_LOGI(TAG, "Disconnected ssid='%s' reason='Station Roaming'", buf);
       return;
     } else {
-      ESP_LOGW(TAG, "Disconnected ssid='%s' bssid=" LOG_SECRET("%s") " reason='%s'", buf,
-               format_mac_address_pretty(it.bssid).c_str(), get_disconnect_reason_str(it.reason));
+      char bssid_s[18];
+      format_mac_addr_upper(it.bssid, bssid_s);
+      ESP_LOGW(TAG, "Disconnected ssid='%s' bssid=" LOG_SECRET("%s") " reason='%s'", buf, bssid_s,
+               get_disconnect_reason_str(it.reason));
       s_sta_connect_error = true;
     }
     s_sta_connected = false;
@@ -884,7 +886,7 @@ bool WiFiComponent::wifi_scan_start_(bool passive) {
 }
 
 #ifdef USE_WIFI_AP
-bool WiFiComponent::wifi_ap_ip_config_(optional<ManualIP> manual_ip) {
+bool WiFiComponent::wifi_ap_ip_config_(const optional<ManualIP> &manual_ip) {
   esp_err_t err;
 
   // enable AP
@@ -1029,7 +1031,8 @@ bssid_t WiFiComponent::wifi_bssid() {
   wifi_ap_record_t info;
   esp_err_t err = esp_wifi_sta_get_ap_info(&info);
   if (err != ESP_OK) {
-    ESP_LOGW(TAG, "esp_wifi_sta_get_ap_info failed: %s", esp_err_to_name(err));
+    // Very verbose only: this is expected during dump_config() before connection is established (PR #9823)
+    ESP_LOGVV(TAG, "esp_wifi_sta_get_ap_info failed: %s", esp_err_to_name(err));
     return bssid;
   }
   std::copy(info.bssid, info.bssid + 6, bssid.begin());
@@ -1039,7 +1042,8 @@ std::string WiFiComponent::wifi_ssid() {
   wifi_ap_record_t info{};
   esp_err_t err = esp_wifi_sta_get_ap_info(&info);
   if (err != ESP_OK) {
-    ESP_LOGW(TAG, "esp_wifi_sta_get_ap_info failed: %s", esp_err_to_name(err));
+    // Very verbose only: this is expected during dump_config() before connection is established (PR #9823)
+    ESP_LOGVV(TAG, "esp_wifi_sta_get_ap_info failed: %s", esp_err_to_name(err));
     return "";
   }
   auto *ssid_s = reinterpret_cast<const char *>(info.ssid);
@@ -1050,8 +1054,9 @@ int8_t WiFiComponent::wifi_rssi() {
   wifi_ap_record_t info;
   esp_err_t err = esp_wifi_sta_get_ap_info(&info);
   if (err != ESP_OK) {
-    ESP_LOGW(TAG, "esp_wifi_sta_get_ap_info failed: %s", esp_err_to_name(err));
-    return 0;
+    // Very verbose only: this is expected during dump_config() before connection is established (PR #9823)
+    ESP_LOGVV(TAG, "esp_wifi_sta_get_ap_info failed: %s", esp_err_to_name(err));
+    return WIFI_RSSI_DISCONNECTED;
   }
   return info.rssi;
 }

esphome/components/wifi/wifi_component_libretiny.cpp

@@ -68,7 +68,7 @@ bool WiFiComponent::wifi_sta_pre_setup_() {
   return true;
 }
 bool WiFiComponent::wifi_apply_power_save_() { return WiFi.setSleep(this->power_save_ != WIFI_POWER_SAVE_NONE); }
-bool WiFiComponent::wifi_sta_ip_config_(optional<ManualIP> manual_ip) {
+bool WiFiComponent::wifi_sta_ip_config_(const optional<ManualIP> &manual_ip) {
   // enable STA
   if (!this->wifi_mode_(true, {}))
     return false;
@@ -299,8 +299,10 @@ void WiFiComponent::wifi_event_callback_(esphome_wifi_event_id_t event, esphome_
       if (it.reason == WIFI_REASON_NO_AP_FOUND) {
         ESP_LOGW(TAG, "Disconnected ssid='%s' reason='Probe Request Unsuccessful'", buf);
       } else {
-        ESP_LOGW(TAG, "Disconnected ssid='%s' bssid=" LOG_SECRET("%s") " reason='%s'", buf,
-                 format_mac_address_pretty(it.bssid).c_str(), get_disconnect_reason_str(it.reason));
+        char bssid_s[18];
+        format_mac_addr_upper(it.bssid, bssid_s);
+        ESP_LOGW(TAG, "Disconnected ssid='%s' bssid=" LOG_SECRET("%s") " reason='%s'", buf, bssid_s,
+                 get_disconnect_reason_str(it.reason));
       }
 
       uint8_t reason = it.reason;
@@ -434,7 +436,7 @@ void WiFiComponent::wifi_scan_done_callback_() {
 }
 
 #ifdef USE_WIFI_AP
-bool WiFiComponent::wifi_ap_ip_config_(optional<ManualIP> manual_ip) {
+bool WiFiComponent::wifi_ap_ip_config_(const optional<ManualIP> &manual_ip) {
   // enable AP
   if (!this->wifi_mode_({}, true))
     return false;
@@ -484,7 +486,7 @@ bssid_t WiFiComponent::wifi_bssid() {
   return bssid;
 }
 std::string WiFiComponent::wifi_ssid() { return WiFi.SSID().c_str(); }
-int8_t WiFiComponent::wifi_rssi() { return WiFi.RSSI(); }
+int8_t WiFiComponent::wifi_rssi() { return WiFi.status() == WL_CONNECTED ? WiFi.RSSI() : WIFI_RSSI_DISCONNECTED; }
 int32_t WiFiComponent::get_wifi_channel() { return WiFi.channel(); }
 network::IPAddress WiFiComponent::wifi_subnet_mask_() { return {WiFi.subnetMask()}; }
 network::IPAddress WiFiComponent::wifi_gateway_ip_() { return {WiFi.gatewayIP()}; }

esphome/components/wifi/wifi_component_pico_w.cpp

@@ -72,7 +72,7 @@ bool WiFiComponent::wifi_sta_connect_(const WiFiAP &ap) {
 
 bool WiFiComponent::wifi_sta_pre_setup_() { return this->wifi_mode_(true, {}); }
 
-bool WiFiComponent::wifi_sta_ip_config_(optional<ManualIP> manual_ip) {
+bool WiFiComponent::wifi_sta_ip_config_(const optional<ManualIP> &manual_ip) {
   if (!manual_ip.has_value()) {
     return true;
   }
@@ -146,7 +146,7 @@ bool WiFiComponent::wifi_scan_start_(bool passive) {
 }
 
 #ifdef USE_WIFI_AP
-bool WiFiComponent::wifi_ap_ip_config_(optional<ManualIP> manual_ip) {
+bool WiFiComponent::wifi_ap_ip_config_(const optional<ManualIP> &manual_ip) {
   esphome::network::IPAddress ip_address, gateway, subnet, dns;
   if (manual_ip.has_value()) {
     ip_address = manual_ip->static_ip;
@@ -200,7 +200,7 @@ bssid_t WiFiComponent::wifi_bssid() {
   return bssid;
 }
 std::string WiFiComponent::wifi_ssid() { return WiFi.SSID().c_str(); }
-int8_t WiFiComponent::wifi_rssi() { return WiFi.RSSI(); }
+int8_t WiFiComponent::wifi_rssi() { return WiFi.status() == WL_CONNECTED ? WiFi.RSSI() : WIFI_RSSI_DISCONNECTED; }
 int32_t WiFiComponent::get_wifi_channel() { return WiFi.channel(); }
 
 network::IPAddresses WiFiComponent::wifi_sta_ip_addresses() {

esphome/const.py

@@ -4,7 +4,7 @@ from enum import Enum
 
 from esphome.enum import StrEnum
 
-__version__ = "2025.11.0b1"
+__version__ = "2025.12.0-dev"
 
 ALLOWED_NAME_CHARS = "abcdefghijklmnopqrstuvwxyz0123456789-_"
 VALID_SUBSTITUTIONS_CHARACTERS = (

esphome/core/base_automation.h

@@ -178,7 +178,6 @@ template<typename... Ts> class DelayAction : public Action<Ts...>, public Compon
   TEMPLATABLE_VALUE(uint32_t, delay)
 
   void play_complex(const Ts &...x) override {
-    auto f = std::bind(&DelayAction<Ts...>::play_next_, this, x...);
     this->num_running_++;
 
     // If num_running_ > 1, we have multiple instances running in parallel
@@ -187,9 +186,22 @@ template<typename... Ts> class DelayAction : public Action<Ts...>, public Compon
     // WARNING: This can accumulate delays if scripts are triggered faster than they complete!
     // Users should set max_runs on parallel scripts to limit concurrent executions.
     // Issue #10264: This is a workaround for parallel script delays interfering with each other.
-    App.scheduler.set_timer_common_(this, Scheduler::SchedulerItem::TIMEOUT,
-                                    /* is_static_string= */ true, "delay", this->delay_.value(x...), std::move(f),
-                                    /* is_retry= */ false, /* skip_cancel= */ this->num_running_ > 1);
+
+    // Optimization: For no-argument delays (most common case), use direct lambda
+    // instead of std::bind to avoid bind overhead (~16 bytes heap + faster execution)
+    if constexpr (sizeof...(Ts) == 0) {
+      App.scheduler.set_timer_common_(
+          this, Scheduler::SchedulerItem::TIMEOUT,
+          /* is_static_string= */ true, "delay", this->delay_.value(), [this]() { this->play_next_(); },
+          /* is_retry= */ false, /* skip_cancel= */ this->num_running_ > 1);
+    } else {
+      // For delays with arguments, use std::bind to preserve argument values
+      // Arguments must be copied because original references may be invalid after delay
+      auto f = std::bind(&DelayAction<Ts...>::play_next_, this, x...);
+      App.scheduler.set_timer_common_(this, Scheduler::SchedulerItem::TIMEOUT,
+                                      /* is_static_string= */ true, "delay", this->delay_.value(x...), std::move(f),
+                                      /* is_retry= */ false, /* skip_cancel= */ this->num_running_ > 1);
+    }
   }
   float get_setup_priority() const override { return setup_priority::HARDWARE; }
 
@@ -412,7 +424,12 @@ template<typename... Ts> class WaitUntilAction : public Action<Ts...>, public Co
 
   void setup() override {
     // Start with loop disabled - only enable when there's work to do
-    this->disable_loop();
+    // IMPORTANT: Only disable if num_running_ is 0, otherwise play_complex() was already
+    // called before our setup() (e.g., from on_boot trigger at same priority level)
+    // and we must not undo its enable_loop() call
+    if (this->num_running_ == 0) {
+      this->disable_loop();
+    }
   }
 
   void play_complex(const Ts &...x) override {

esphome/mqtt.py

@@ -30,6 +30,7 @@ from esphome.const import (
 from esphome.core import CORE, EsphomeError
 from esphome.helpers import get_int_env, get_str_env
 from esphome.log import AnsiFore, color
+from esphome.types import ConfigType
 from esphome.util import safe_print
 
 _LOGGER = logging.getLogger(__name__)
@@ -154,8 +155,12 @@ def show_discover(config, username=None, password=None, client_id=None):
 
 
 def get_esphome_device_ip(
-    config, username=None, password=None, client_id=None, timeout=25
-):
+    config: ConfigType,
+    username: str | None = None,
+    password: str | None = None,
+    client_id: str | None = None,
+    timeout: int | float = 25,
+) -> list[str]:
     if CONF_MQTT not in config:
         raise EsphomeError(
             "Cannot discover IP via MQTT as the config does not include the mqtt: "
@@ -166,6 +171,10 @@ def get_esphome_device_ip(
             "Cannot discover IP via MQTT as the config does not include the device name: "
             "component"
         )
+    if not config[CONF_MQTT].get(CONF_BROKER):
+        raise EsphomeError(
+            "Cannot discover IP via MQTT as the broker is not configured"
+        )
 
     dev_name = config[CONF_ESPHOME][CONF_NAME]
     dev_ip = None

requirements_test.txt

@@ -1,11 +1,11 @@
-pylint==4.0.2
+pylint==4.0.3
 flake8==7.3.0  # also change in .pre-commit-config.yaml when updating
-ruff==0.14.4  # also change in .pre-commit-config.yaml when updating
+ruff==0.14.5  # also change in .pre-commit-config.yaml when updating
 pyupgrade==3.21.1  # also change in .pre-commit-config.yaml when updating
 pre-commit
 
 # Unit tests
-pytest==9.0.0
+pytest==9.0.1
 pytest-cov==7.0.0
 pytest-mock==3.15.1
 pytest-asyncio==1.3.0

tests/components/binary_sensor/test.esp32-s3-idf.yaml

@@ -1,2 +0,0 @@
-packages:
-  common: !include common.yaml

tests/components/bme68x_bsec2_i2c/test.esp32-s3-idf.yaml

@@ -1,4 +0,0 @@
-packages:
-  i2c: !include ../../test_build_components/common/i2c/esp32-s3-idf.yaml
-
-<<: !include common.yaml

tests/components/debug/test.esp32-s3-idf.yaml

@@ -1 +0,0 @@
-<<: !include common.yaml

tests/components/esp32/test.esp32-p4-idf.yaml

@@ -0,0 +1,27 @@
+esp32:
+  variant: esp32p4
+  flash_size: 32MB
+  cpu_frequency: 400MHz
+  framework:
+    type: esp-idf
+    advanced:
+      enable_idf_experimental_features: yes
+
+ota:
+  platform: esphome
+
+wifi:
+  ssid: MySSID
+  password: password1
+
+esp32_hosted:
+  variant: ESP32C6
+  slot: 1
+  active_high: true
+  reset_pin: GPIO15
+  cmd_pin: GPIO13
+  clk_pin: GPIO12
+  d0_pin: GPIO11
+  d1_pin: GPIO10
+  d2_pin: GPIO9
+  d3_pin: GPIO8

tests/components/matrix_keypad/test.esp32-s3-idf.yaml

@@ -1,15 +0,0 @@
-packages:
-  common: !include common.yaml
-
-matrix_keypad:
-  id: keypad
-  rows:
-    - pin: 10
-    - pin: 11
-  columns:
-    - pin: 12
-    - pin: 13
-  keys: "1234"
-  has_pulldowns: true
-  on_key:
-    - lambda: ESP_LOGI("KEY", "key %d pressed", x);

tests/components/mcp3221/test.esp32-s3-idf.yaml

@@ -1,4 +0,0 @@
-packages:
-  i2c: !include ../../test_build_components/common/i2c/esp32-s3-idf.yaml
-
-<<: !include common.yaml

tests/components/mlx90393/test.esp32-s3-idf.yaml

@@ -1,4 +0,0 @@
-packages:
-  i2c: !include ../../test_build_components/common/i2c/esp32-s3-idf.yaml
-
-<<: !include common.yaml

tests/components/npi19/test.esp32-s3-idf.yaml

@@ -1,4 +0,0 @@
-packages:
-  i2c: !include ../../test_build_components/common/i2c/esp32-s3-idf.yaml
-
-<<: !include common.yaml

tests/components/nrf52/test.nrf52-adafruit.yaml

@@ -15,6 +15,7 @@ nrf52:
       inverted: true
       mode:
         output: true
+  dcdc: False
   reg0:
     voltage: 2.1V
     uicr_erase: true

tests/components/ntc/test.esp32-s3-idf.yaml

@@ -1,4 +0,0 @@
-substitutions:
-  pin: GPIO4
-
-<<: !include common.yaml

tests/components/resistance/test.esp32-s3-idf.yaml

@@ -1,4 +0,0 @@
-substitutions:
-  pin: GPIO1
-
-<<: !include common.yaml

tests/components/switch/test.esp32-s3-idf.yaml

@@ -1,2 +0,0 @@
-packages:
-  common: !include common.yaml

tests/components/tem3200/test.esp32-s3-idf.yaml

@@ -1,8 +0,0 @@
-substitutions:
-  scl_pin: GPIO40
-  sda_pin: GPIO41
-
-packages:
-  i2c: !include ../../test_build_components/common/i2c/esp32-s3-idf.yaml
-
-<<: !include common.yaml

tests/components/template/test.esp32-s3-idf.yaml

@@ -1,2 +0,0 @@
-packages:
-  common: !include common.yaml

tests/components/uart/test-uart_max_with_usb_serial_jtag.esp32-s3-idf.yaml

@@ -1,48 +0,0 @@
-<<: !include ../logger/common-usb_serial_jtag.yaml
-
-esphome:
-  on_boot:
-    then:
-      - uart.write:
-          id: uart_1
-          data: 'Hello World'
-      - uart.write:
-          id: uart_1
-          data: [0x00, 0x20, 0x42]
-
-uart:
-  - id: uart_1
-    tx_pin: 4
-    rx_pin: 5
-    flow_control_pin: 6
-    baud_rate: 9600
-    data_bits: 8
-    rx_buffer_size: 512
-    rx_full_threshold: 10
-    rx_timeout: 1
-    parity: EVEN
-    stop_bits: 2
-
-  - id: uart_2
-    tx_pin: 7
-    rx_pin: 8
-    flow_control_pin: 9
-    baud_rate: 9600
-    data_bits: 8
-    rx_buffer_size: 512
-    rx_full_threshold: 10
-    rx_timeout: 1
-    parity: EVEN
-    stop_bits: 2
-
-  - id: uart_3
-    tx_pin: 10
-    rx_pin: 11
-    flow_control_pin: 12
-    baud_rate: 9600
-    data_bits: 8
-    rx_buffer_size: 512
-    rx_full_threshold: 10
-    rx_timeout: 1
-    parity: EVEN
-    stop_bits: 2

tests/components/wk2132_i2c/test.esp32-s3-idf.yaml

@@ -1,9 +0,0 @@
-substitutions:
-  scl_pin: GPIO40
-  sda_pin: GPIO41
-
-packages:
-  i2c: !include ../../test_build_components/common/i2c/esp32-s3-idf.yaml
-  uart_bridge_2: !include ../../test_build_components/common/uart_bridge_2/esp32-s3-idf.yaml
-
-<<: !include common.yaml

tests/components/wk2132_spi/test.esp32-s3-idf.yaml

@@ -1,11 +0,0 @@
-substitutions:
-  clk_pin: GPIO40
-  miso_pin: GPIO41
-  mosi_pin: GPIO6
-  cs_pin: GPIO19
-
-packages:
-  spi: !include ../../test_build_components/common/spi/esp32-s3-idf.yaml
-  uart_bridge_2: !include ../../test_build_components/common/uart_bridge_2/esp32-s3-idf.yaml
-
-<<: !include common.yaml

tests/components/wk2168_i2c/test.esp32-s3-idf.yaml

@@ -1,9 +0,0 @@
-substitutions:
-  scl_pin: GPIO40
-  sda_pin: GPIO41
-
-packages:
-  i2c: !include ../../test_build_components/common/i2c/esp32-s3-idf.yaml
-  uart_bridge_4: !include ../../test_build_components/common/uart_bridge_4/esp32-s3-idf.yaml
-
-<<: !include common.yaml

tests/components/wk2168_spi/test.esp32-s3-idf.yaml

@@ -1,11 +0,0 @@
-substitutions:
-  clk_pin: GPIO40
-  miso_pin: GPIO41
-  mosi_pin: GPIO6
-  cs_pin: GPIO19
-
-packages:
-  spi: !include ../../test_build_components/common/spi/esp32-s3-idf.yaml
-  uart_bridge_4: !include ../../test_build_components/common/uart_bridge_4/esp32-s3-idf.yaml
-
-<<: !include common.yaml

tests/components/wk2204_i2c/test.esp32-s3-idf.yaml

@@ -1,9 +0,0 @@
-substitutions:
-  scl_pin: GPIO40
-  sda_pin: GPIO41
-
-packages:
-  i2c: !include ../../test_build_components/common/i2c/esp32-s3-idf.yaml
-  uart_bridge_4: !include ../../test_build_components/common/uart_bridge_4/esp32-s3-idf.yaml
-
-<<: !include common.yaml

tests/components/wk2204_spi/test.esp32-s3-idf.yaml

@@ -1,11 +0,0 @@
-substitutions:
-  clk_pin: GPIO40
-  miso_pin: GPIO41
-  mosi_pin: GPIO6
-  cs_pin: GPIO19
-
-packages:
-  spi: !include ../../test_build_components/common/spi/esp32-s3-idf.yaml
-  uart_bridge_4: !include ../../test_build_components/common/uart_bridge_4/esp32-s3-idf.yaml
-
-<<: !include common.yaml

tests/components/wk2212_i2c/test.esp32-s3-idf.yaml

@@ -1,9 +0,0 @@
-substitutions:
-  scl_pin: GPIO40
-  sda_pin: GPIO41
-
-packages:
-  i2c: !include ../../test_build_components/common/i2c/esp32-s3-idf.yaml
-  uart_bridge_4: !include ../../test_build_components/common/uart_bridge_4/esp32-s3-idf.yaml
-
-<<: !include common.yaml

tests/components/wk2212_spi/test.esp32-s3-idf.yaml

@@ -1,11 +0,0 @@
-substitutions:
-  clk_pin: GPIO40
-  miso_pin: GPIO41
-  mosi_pin: GPIO6
-  cs_pin: GPIO19
-
-packages:
-  spi: !include ../../test_build_components/common/spi/esp32-s3-idf.yaml
-  uart_bridge_4: !include ../../test_build_components/common/uart_bridge_4/esp32-s3-idf.yaml
-
-<<: !include common.yaml

tests/integration/fixtures/climate_custom_fan_modes_and_presets.yaml

@@ -14,6 +14,7 @@ climate:
     id: test_thermostat
     name: Test Thermostat Custom Modes
     sensor: thermostat_sensor
+    default_preset: "Eco Plus"
     preset:
       - name: Away
         default_target_temperature_low: 16°C

tests/integration/fixtures/wait_until_on_boot.yaml

@@ -0,0 +1,47 @@
+# Test for wait_until in on_boot automation
+# Reproduces bug where wait_until in on_boot would hang forever
+# because WaitUntilAction::setup() would disable_loop() after
+# play_complex() had already enabled it.
+
+esphome:
+  name: wait-until-on-boot
+  on_boot:
+    then:
+      - logger.log: "on_boot: Starting wait_until test"
+      - globals.set:
+          id: on_boot_started
+          value: 'true'
+      - wait_until:
+          condition:
+            lambda: return id(test_flag);
+          timeout: 5s
+      - logger.log: "on_boot: wait_until completed successfully"
+
+host:
+
+logger:
+  level: DEBUG
+
+globals:
+  - id: on_boot_started
+    type: bool
+    initial_value: 'false'
+  - id: test_flag
+    type: bool
+    initial_value: 'false'
+
+api:
+  actions:
+    - action: set_test_flag
+      then:
+        - globals.set:
+            id: test_flag
+            value: 'true'
+    - action: check_on_boot_started
+      then:
+        - lambda: |-
+            if (id(on_boot_started)) {
+              ESP_LOGI("test", "on_boot has started");
+            } else {
+              ESP_LOGI("test", "on_boot has NOT started");
+            }

tests/integration/test_climate_custom_modes.py

@@ -2,9 +2,13 @@
 
 from __future__ import annotations
 
-from aioesphomeapi import ClimateInfo, ClimatePreset
+import asyncio
+
+import aioesphomeapi
+from aioesphomeapi import ClimateInfo, ClimatePreset, EntityState
 import pytest
 
+from .state_utils import InitialStateHelper
 from .types import APIClientConnectedFactory, RunCompiledFunction
 
 
@@ -14,15 +18,50 @@ async def test_climate_custom_fan_modes_and_presets(
     run_compiled: RunCompiledFunction,
     api_client_connected: APIClientConnectedFactory,
 ) -> None:
-    """Test that custom presets are properly exposed via API."""
+    """Test that custom presets are properly exposed and can be changed."""
+    loop = asyncio.get_running_loop()
     async with run_compiled(yaml_config), api_client_connected() as client:
-        # Get entities and services
+        states: dict[int, EntityState] = {}
+        super_saver_future: asyncio.Future[EntityState] = loop.create_future()
+        vacation_future: asyncio.Future[EntityState] = loop.create_future()
+
+        def on_state(state: EntityState) -> None:
+            states[state.key] = state
+            if isinstance(state, aioesphomeapi.ClimateState):
+                # Wait for Super Saver preset
+                if (
+                    state.custom_preset == "Super Saver"
+                    and state.target_temperature_low == 20.0
+                    and state.target_temperature_high == 24.0
+                    and not super_saver_future.done()
+                ):
+                    super_saver_future.set_result(state)
+                # Wait for Vacation Mode preset
+                elif (
+                    state.custom_preset == "Vacation Mode"
+                    and state.target_temperature_low == 15.0
+                    and state.target_temperature_high == 18.0
+                    and not vacation_future.done()
+                ):
+                    vacation_future.set_result(state)
+
+        # Get entities and set up state synchronization
         entities, services = await client.list_entities_services()
+        initial_state_helper = InitialStateHelper(entities)
         climate_infos = [e for e in entities if isinstance(e, ClimateInfo)]
         assert len(climate_infos) == 1, "Expected exactly 1 climate entity"
 
         test_climate = climate_infos[0]
 
+        # Subscribe with the wrapper that filters initial states
+        client.subscribe_states(initial_state_helper.on_state_wrapper(on_state))
+
+        # Wait for all initial states to be broadcast
+        try:
+            await initial_state_helper.wait_for_initial_states()
+        except TimeoutError:
+            pytest.fail("Timeout waiting for initial states")
+
         # Verify enum presets are exposed (from preset: config map)
         assert ClimatePreset.AWAY in test_climate.supported_presets, (
             "Expected AWAY in enum presets"
@@ -40,3 +79,43 @@ async def test_climate_custom_fan_modes_and_presets(
         assert "Vacation Mode" in custom_presets, (
             "Expected 'Vacation Mode' in custom presets"
         )
+
+        # Get initial state and verify default preset
+        initial_state = initial_state_helper.initial_states.get(test_climate.key)
+        assert initial_state is not None, "Climate initial state not found"
+        assert isinstance(initial_state, aioesphomeapi.ClimateState)
+        assert initial_state.custom_preset == "Eco Plus", (
+            f"Expected default preset 'Eco Plus', got '{initial_state.custom_preset}'"
+        )
+        assert initial_state.target_temperature_low == 18.0, (
+            f"Expected low temp 18.0, got {initial_state.target_temperature_low}"
+        )
+        assert initial_state.target_temperature_high == 22.0, (
+            f"Expected high temp 22.0, got {initial_state.target_temperature_high}"
+        )
+
+        # Test changing to "Super Saver" custom preset
+        client.climate_command(test_climate.key, custom_preset="Super Saver")
+
+        try:
+            super_saver_state = await asyncio.wait_for(super_saver_future, timeout=5.0)
+        except TimeoutError:
+            pytest.fail("Super Saver preset change not received within 5 seconds")
+
+        assert isinstance(super_saver_state, aioesphomeapi.ClimateState)
+        assert super_saver_state.custom_preset == "Super Saver"
+        assert super_saver_state.target_temperature_low == 20.0
+        assert super_saver_state.target_temperature_high == 24.0
+
+        # Test changing to "Vacation Mode" custom preset
+        client.climate_command(test_climate.key, custom_preset="Vacation Mode")
+
+        try:
+            vacation_state = await asyncio.wait_for(vacation_future, timeout=5.0)
+        except TimeoutError:
+            pytest.fail("Vacation Mode preset change not received within 5 seconds")
+
+        assert isinstance(vacation_state, aioesphomeapi.ClimateState)
+        assert vacation_state.custom_preset == "Vacation Mode"
+        assert vacation_state.target_temperature_low == 15.0
+        assert vacation_state.target_temperature_high == 18.0

tests/integration/test_wait_until_on_boot.py

@@ -0,0 +1,91 @@
+"""Integration test for wait_until in on_boot automation.
+
+This test validates that wait_until works correctly when triggered from on_boot,
+which runs at the same setup priority as WaitUntilAction itself. This was broken
+before the fix because WaitUntilAction::setup() would unconditionally disable_loop(),
+even if play_complex() had already been called and enabled the loop.
+
+The bug: on_boot fires during StartupTrigger::setup(), which calls WaitUntilAction::play_complex()
+before WaitUntilAction::setup() has run. Then when WaitUntilAction::setup() runs, it calls
+disable_loop(), undoing the enable_loop() from play_complex(), causing wait_until to hang forever.
+"""
+
+from __future__ import annotations
+
+import asyncio
+import re
+
+import pytest
+
+from .types import APIClientConnectedFactory, RunCompiledFunction
+
+
+@pytest.mark.asyncio
+async def test_wait_until_on_boot(
+    yaml_config: str,
+    run_compiled: RunCompiledFunction,
+    api_client_connected: APIClientConnectedFactory,
+) -> None:
+    """Test that wait_until works in on_boot automation with a condition that becomes true later."""
+    loop = asyncio.get_running_loop()
+
+    on_boot_started = False
+    on_boot_completed = False
+
+    on_boot_started_pattern = re.compile(r"on_boot: Starting wait_until test")
+    on_boot_complete_pattern = re.compile(r"on_boot: wait_until completed successfully")
+
+    on_boot_started_future = loop.create_future()
+    on_boot_complete_future = loop.create_future()
+
+    def check_output(line: str) -> None:
+        """Check log output for test progress."""
+        nonlocal on_boot_started, on_boot_completed
+
+        if on_boot_started_pattern.search(line):
+            on_boot_started = True
+            if not on_boot_started_future.done():
+                on_boot_started_future.set_result(True)
+
+        if on_boot_complete_pattern.search(line):
+            on_boot_completed = True
+            if not on_boot_complete_future.done():
+                on_boot_complete_future.set_result(True)
+
+    async with (
+        run_compiled(yaml_config, line_callback=check_output),
+        api_client_connected() as client,
+    ):
+        # Wait for on_boot to start
+        await asyncio.wait_for(on_boot_started_future, timeout=10.0)
+        assert on_boot_started, "on_boot did not start"
+
+        # At this point, on_boot is blocked in wait_until waiting for test_flag to become true
+        # If the bug exists, wait_until's loop is disabled and it will never complete
+        # even after we set the flag
+
+        # Give a moment for setup to complete
+        await asyncio.sleep(0.5)
+
+        # Now set the flag that wait_until is waiting for
+        _, services = await client.list_entities_services()
+        set_flag_service = next(
+            (s for s in services if s.name == "set_test_flag"), None
+        )
+        assert set_flag_service is not None, "set_test_flag service not found"
+
+        client.execute_service(set_flag_service, {})
+
+        # If the fix works, wait_until's loop() will check the condition and proceed
+        # If the bug exists, wait_until is stuck with disabled loop and will timeout
+        try:
+            await asyncio.wait_for(on_boot_complete_future, timeout=2.0)
+            assert on_boot_completed, (
+                "on_boot wait_until did not complete after flag was set"
+            )
+        except TimeoutError:
+            pytest.fail(
+                "wait_until in on_boot did not complete within 2s after condition became true. "
+                "This indicates the bug where WaitUntilAction::setup() disables the loop "
+                "after play_complex() has already enabled it."
+            )

tests/unit_tests/test_main.py

@@ -1166,6 +1166,56 @@ def test_upload_program_ota_with_mqtt_resolution(
     )
 
 
+def test_upload_program_ota_with_mqtt_empty_broker(
+    mock_mqtt_get_ip: Mock,
+    mock_is_ip_address: Mock,
+    mock_run_ota: Mock,
+    tmp_path: Path,
+    caplog: CaptureFixture,
+) -> None:
+    """Test upload_program with OTA when MQTT broker is empty (issue #11653)."""
+    setup_core(address="192.168.1.50", platform=PLATFORM_ESP32, tmp_path=tmp_path)
+
+    mock_is_ip_address.return_value = True
+    mock_mqtt_get_ip.side_effect = EsphomeError(
+        "Cannot discover IP via MQTT as the broker is not configured"
+    )
+    mock_run_ota.return_value = (0, "192.168.1.50")
+
+    config = {
+        CONF_OTA: [
+            {
+                CONF_PLATFORM: CONF_ESPHOME,
+                CONF_PORT: 3232,
+            }
+        ],
+        CONF_MQTT: {
+            CONF_BROKER: "",
+        },
+        CONF_MDNS: {
+            CONF_DISABLED: True,
+        },
+    }
+    args = MockArgs(username="user", password="pass", client_id="client")
+    devices = ["MQTTIP", "192.168.1.50"]
+
+    exit_code, host = upload_program(config, args, devices)
+
+    assert exit_code == 0
+    assert host == "192.168.1.50"
+    # Verify MQTT was attempted but failed gracefully
+    mock_mqtt_get_ip.assert_called_once_with(config, "user", "pass", "client")
+    # Verify we fell back to the IP address
+    expected_firmware = (
+        tmp_path / ".esphome" / "build" / "test" / ".pioenvs" / "test" / "firmware.bin"
+    )
+    mock_run_ota.assert_called_once_with(
+        ["192.168.1.50"], 3232, None, expected_firmware
+    )
+    # Verify warning was logged
+    assert "MQTT IP discovery failed" in caplog.text
+
+
 @patch("esphome.__main__.importlib.import_module")
 def test_upload_program_platform_specific_handler(
     mock_import: Mock,

tests/unit_tests/test_mqtt.py

@@ -0,0 +1,91 @@
+"""Unit tests for esphome.mqtt module."""
+
+from __future__ import annotations
+
+import pytest
+
+from esphome.const import CONF_BROKER, CONF_ESPHOME, CONF_MQTT, CONF_NAME
+from esphome.core import EsphomeError
+from esphome.mqtt import get_esphome_device_ip
+
+
+def test_get_esphome_device_ip_empty_broker() -> None:
+    """Test that get_esphome_device_ip raises EsphomeError when broker is empty."""
+    config = {
+        CONF_MQTT: {
+            CONF_BROKER: "",
+        },
+        CONF_ESPHOME: {
+            CONF_NAME: "test-device",
+        },
+    }
+
+    with pytest.raises(
+        EsphomeError,
+        match="Cannot discover IP via MQTT as the broker is not configured",
+    ):
+        get_esphome_device_ip(config)
+
+
+def test_get_esphome_device_ip_none_broker() -> None:
+    """Test that get_esphome_device_ip raises EsphomeError when broker is None."""
+    config = {
+        CONF_MQTT: {
+            CONF_BROKER: None,
+        },
+        CONF_ESPHOME: {
+            CONF_NAME: "test-device",
+        },
+    }
+
+    with pytest.raises(
+        EsphomeError,
+        match="Cannot discover IP via MQTT as the broker is not configured",
+    ):
+        get_esphome_device_ip(config)
+
+
+def test_get_esphome_device_ip_missing_mqtt() -> None:
+    """Test that get_esphome_device_ip raises EsphomeError when mqtt config is missing."""
+    config = {
+        CONF_ESPHOME: {
+            CONF_NAME: "test-device",
+        },
+    }
+
+    with pytest.raises(
+        EsphomeError,
+        match="Cannot discover IP via MQTT as the config does not include the mqtt:",
+    ):
+        get_esphome_device_ip(config)
+
+
+def test_get_esphome_device_ip_missing_esphome() -> None:
+    """Test that get_esphome_device_ip raises EsphomeError when esphome config is missing."""
+    config = {
+        CONF_MQTT: {
+            CONF_BROKER: "mqtt.local",
+        },
+    }
+
+    with pytest.raises(
+        EsphomeError,
+        match="Cannot discover IP via MQTT as the config does not include the device name:",
+    ):
+        get_esphome_device_ip(config)
+
+
+def test_get_esphome_device_ip_missing_name() -> None:
+    """Test that get_esphome_device_ip raises EsphomeError when device name is missing."""
+    config = {
+        CONF_MQTT: {
+            CONF_BROKER: "mqtt.local",
+        },
+        CONF_ESPHOME: {},
+    }
+
+    with pytest.raises(
+        EsphomeError,
+        match="Cannot discover IP via MQTT as the config does not include the device name:",
+    ):
+        get_esphome_device_ip(config)