[ethernet] Conditionally compile manual_ip to save 24 bytes RAM

esphome/__main__.py

@@ -741,13 +741,6 @@ def command_vscode(args: ArgsProtocol) -> int | None:
 
 
 def command_compile(args: ArgsProtocol, config: ConfigType) -> int | None:
-    # Set memory analysis options in config
-    if args.analyze_memory:
-        config.setdefault(CONF_ESPHOME, {})["analyze_memory"] = True
-
-    if args.memory_report:
-        config.setdefault(CONF_ESPHOME, {})["memory_report_file"] = args.memory_report
-
     exit_code = write_cpp(config)
     if exit_code != 0:
         return exit_code
@@ -1209,17 +1202,6 @@ def parse_args(argv):
         help="Only generate source code, do not compile.",
         action="store_true",
     )
-    parser_compile.add_argument(
-        "--analyze-memory",
-        help="Analyze and display memory usage by component after compilation.",
-        action="store_true",
-    )
-    parser_compile.add_argument(
-        "--memory-report",
-        help="Save memory analysis report to a file (supports .json or .txt).",
-        type=str,
-        metavar="FILE",
-    )
 
     parser_upload = subparsers.add_parser(
         "upload",

esphome/analyze_memory/cli.py

@@ -1,7 +1,6 @@
 """CLI interface for memory analysis with report generation."""
 
 from collections import defaultdict
-import json
 import sys
 
 from . import (
@@ -284,28 +283,6 @@ class MemoryAnalyzerCLI(MemoryAnalyzer):
 
         return "\n".join(lines)
 
-    def to_json(self) -> str:
-        """Export analysis results as JSON."""
-        data = {
-            "components": {
-                name: {
-                    "text": mem.text_size,
-                    "rodata": mem.rodata_size,
-                    "data": mem.data_size,
-                    "bss": mem.bss_size,
-                    "flash_total": mem.flash_total,
-                    "ram_total": mem.ram_total,
-                    "symbol_count": mem.symbol_count,
-                }
-                for name, mem in self.components.items()
-            },
-            "totals": {
-                "flash": sum(c.flash_total for c in self.components.values()),
-                "ram": sum(c.ram_total for c in self.components.values()),
-            },
-        }
-        return json.dumps(data, indent=2)
-
     def dump_uncategorized_symbols(self, output_file: str | None = None) -> None:
         """Dump uncategorized symbols for analysis."""
         # Sort by size descending

esphome/components/api/api_connection.cpp

@@ -1294,11 +1294,11 @@ void APIConnection::alarm_control_panel_command(const AlarmControlPanelCommandRe
 #endif
 
 #ifdef USE_EVENT
-void APIConnection::send_event(event::Event *event, const char *event_type) {
+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);
 }
-uint16_t APIConnection::try_send_event_response(event::Event *event, const char *event_type, APIConnection *conn,
+uint16_t APIConnection::try_send_event_response(event::Event *event, const std::string &event_type, APIConnection *conn,
                                                 uint32_t remaining_size, bool is_single) {
   EventResponse resp;
   resp.set_event_type(StringRef(event_type));
@@ -1650,7 +1650,9 @@ 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) {
-      // Replace with new creator
+      // Clean up old creator before replacing
+      item.creator.cleanup(message_type);
+      // Move assign the new creator
       item.creator = std::move(creator);
       return;
     }
@@ -1820,7 +1822,7 @@ void APIConnection::process_batch_() {
 
   // Handle remaining items more efficiently
   if (items_processed < this->deferred_batch_.size()) {
-    // Remove processed items from the beginning
+    // Remove processed items from the beginning with proper cleanup
     this->deferred_batch_.remove_front(items_processed);
     // Reschedule for remaining items
     this->schedule_batch_();
@@ -1833,10 +1835,10 @@ 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 const char * pointer
+  // Special case: EventResponse uses string pointer
   if (message_type == EventResponse::MESSAGE_TYPE) {
     auto *e = static_cast<event::Event *>(entity);
-    return APIConnection::try_send_event_response(e, data_.const_char_ptr, conn, remaining_size, is_single);
+    return APIConnection::try_send_event_response(e, *data_.string_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 char *event_type);
+  void send_event(event::Event *event, const std::string &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 char *event_type, APIConnection *conn,
+  static uint16_t try_send_event_response(event::Event *event, const std::string &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
@@ -508,8 +508,10 @@ class APIConnection final : public APIServerConnection {
     // Constructor for function pointer
     MessageCreator(MessageCreatorPtr ptr) { data_.function_ptr = ptr; }
 
-    // Constructor for const char * (Event types - no allocation needed)
-    explicit MessageCreator(const char *str_value) { data_.const_char_ptr = str_value; }
+    // 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
 
     // Delete copy operations - MessageCreator should only be moved
     MessageCreator(const MessageCreator &other) = delete;
@@ -521,6 +523,8 @@ 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;
       }
@@ -531,10 +535,20 @@ 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;
-      const char *const_char_ptr;
+      std::string *string_ptr;
     } data_;  // 4 bytes on 32-bit, 8 bytes on 64-bit - same as before
   };
 
@@ -554,24 +568,42 @@ 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
+    // Clear all items with proper cleanup
     void clear() {
+      cleanup_items_(items.size());
       items.clear();
       batch_start_time = 0;
     }
 
-    // Remove processed items from the front
-    void remove_front(size_t count) { items.erase(items.begin(), items.begin() + count); }
+    // 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);
+    }
 
     bool empty() const { return items.empty(); }
     size_t size() const { return items.size(); }

esphome/components/ble_client/automation.h

@@ -122,19 +122,16 @@ template<typename... Ts> class BLEClientWriteAction : public Action<Ts...>, publ
   void play_complex(const Ts &...x) override {
     this->num_running_++;
     this->var_ = std::make_tuple(x...);
-
-    bool result;
+    std::vector<uint8_t> value;
     if (this->len_ >= 0) {
-      // Static mode: write directly from flash pointer
-      result = this->write(this->value_.data, this->len_);
+      // Static mode: copy from flash to vector
+      value.assign(this->value_.data, this->value_.data + this->len_);
     } else {
-      // Template mode: call function and write the vector
-      std::vector<uint8_t> value = this->value_.func(x...);
-      result = this->write(value);
+      // Template mode: call function
+      value = this->value_.func(x...);
     }
-
     // on write failure, continue the automation chain rather than stopping so that e.g. disconnect can work.
-    if (!result)
+    if (!write(value))
       this->play_next_(x...);
   }
 
@@ -147,15 +144,15 @@ template<typename... Ts> class BLEClientWriteAction : public Action<Ts...>, publ
    * errors.
    */
   // initiate the write. Return true if all went well, will be followed by a WRITE_CHAR event.
-  bool write(const uint8_t *data, size_t len) {
+  bool write(const std::vector<uint8_t> &value) {
     if (this->node_state != espbt::ClientState::ESTABLISHED) {
       esph_log_w(Automation::TAG, "Cannot write to BLE characteristic - not connected");
       return false;
     }
-    esph_log_vv(Automation::TAG, "Will write %d bytes: %s", len, format_hex_pretty(data, len).c_str());
-    esp_err_t err =
-        esp_ble_gattc_write_char(this->parent()->get_gattc_if(), this->parent()->get_conn_id(), this->char_handle_, len,
-                                 const_cast<uint8_t *>(data), this->write_type_, ESP_GATT_AUTH_REQ_NONE);
+    esph_log_vv(Automation::TAG, "Will write %d bytes: %s", value.size(), format_hex_pretty(value).c_str());
+    esp_err_t err = esp_ble_gattc_write_char(this->parent()->get_gattc_if(), this->parent()->get_conn_id(),
+                                             this->char_handle_, value.size(), const_cast<uint8_t *>(value.data()),
+                                             this->write_type_, ESP_GATT_AUTH_REQ_NONE);
     if (err != ESP_OK) {
       esph_log_e(Automation::TAG, "Error writing to characteristic: %s!", esp_err_to_name(err));
       return false;
@@ -163,8 +160,6 @@ template<typename... Ts> class BLEClientWriteAction : public Action<Ts...>, publ
     return true;
   }
 
-  bool write(const std::vector<uint8_t> &value) { return this->write(value.data(), value.size()); }
-
   void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
                            esp_ble_gattc_cb_param_t *param) override {
     switch (event) {

esphome/components/esp32_ble/ble.cpp

@@ -96,10 +96,6 @@ void ESP32BLE::advertising_set_service_data(const std::vector<uint8_t> &data) {
 }
 
 void ESP32BLE::advertising_set_manufacturer_data(const std::vector<uint8_t> &data) {
-  this->advertising_set_manufacturer_data(std::span<const uint8_t>(data));
-}
-
-void ESP32BLE::advertising_set_manufacturer_data(std::span<const uint8_t> data) {
   this->advertising_init_();
   this->advertising_->set_manufacturer_data(data);
   this->advertising_start();

esphome/components/esp32_ble/ble.h

@@ -118,7 +118,6 @@ class ESP32BLE : public Component {
   void advertising_start();
   void advertising_set_service_data(const std::vector<uint8_t> &data);
   void advertising_set_manufacturer_data(const std::vector<uint8_t> &data);
-  void advertising_set_manufacturer_data(std::span<const uint8_t> data);
   void advertising_set_appearance(uint16_t appearance) { this->appearance_ = appearance; }
   void advertising_set_service_data_and_name(std::span<const uint8_t> data, bool include_name);
   void advertising_add_service_uuid(ESPBTUUID uuid);

esphome/components/esp32_ble/ble_advertising.cpp

@@ -59,10 +59,6 @@ void BLEAdvertising::set_service_data(const std::vector<uint8_t> &data) {
 }
 
 void BLEAdvertising::set_manufacturer_data(const std::vector<uint8_t> &data) {
-  this->set_manufacturer_data(std::span<const uint8_t>(data));
-}
-
-void BLEAdvertising::set_manufacturer_data(std::span<const uint8_t> data) {
   delete[] this->advertising_data_.p_manufacturer_data;
   this->advertising_data_.p_manufacturer_data = nullptr;
   this->advertising_data_.manufacturer_len = data.size();

esphome/components/esp32_ble/ble_advertising.h

@@ -37,7 +37,6 @@ class BLEAdvertising {
   void set_scan_response(bool scan_response) { this->scan_response_ = scan_response; }
   void set_min_preferred_interval(uint16_t interval) { this->advertising_data_.min_interval = interval; }
   void set_manufacturer_data(const std::vector<uint8_t> &data);
-  void set_manufacturer_data(std::span<const uint8_t> data);
   void set_appearance(uint16_t appearance) { this->advertising_data_.appearance = appearance; }
   void set_service_data(const std::vector<uint8_t> &data);
   void set_service_data(std::span<const uint8_t> data);

esphome/components/esp32_ble_beacon/esp32_ble_beacon.cpp

@@ -1,6 +1,5 @@
 #include "esp32_ble_beacon.h"
 #include "esphome/core/log.h"
-#include "esphome/core/helpers.h"
 
 #ifdef USE_ESP32
 

esphome/components/esp32_ble_server/ble_server_automations.cpp

@@ -15,10 +15,7 @@ Trigger<std::vector<uint8_t>, uint16_t> *BLETriggers::create_characteristic_on_w
   Trigger<std::vector<uint8_t>, uint16_t> *on_write_trigger =  // NOLINT(cppcoreguidelines-owning-memory)
       new Trigger<std::vector<uint8_t>, uint16_t>();
   characteristic->on_write([on_write_trigger](std::span<const uint8_t> data, uint16_t id) {
-    // Convert span to vector for trigger - copy is necessary because:
-    // 1. Trigger stores the data for use in automation actions that execute later
-    // 2. The span is only valid during this callback (points to temporary BLE stack data)
-    // 3. User lambdas in automations need persistent data they can access asynchronously
+    // Convert span to vector for trigger
     on_write_trigger->trigger(std::vector<uint8_t>(data.begin(), data.end()), id);
   });
   return on_write_trigger;
@@ -30,10 +27,7 @@ Trigger<std::vector<uint8_t>, uint16_t> *BLETriggers::create_descriptor_on_write
   Trigger<std::vector<uint8_t>, uint16_t> *on_write_trigger =  // NOLINT(cppcoreguidelines-owning-memory)
       new Trigger<std::vector<uint8_t>, uint16_t>();
   descriptor->on_write([on_write_trigger](std::span<const uint8_t> data, uint16_t id) {
-    // Convert span to vector for trigger - copy is necessary because:
-    // 1. Trigger stores the data for use in automation actions that execute later
-    // 2. The span is only valid during this callback (points to temporary BLE stack data)
-    // 3. User lambdas in automations need persistent data they can access asynchronously
+    // Convert span to vector for trigger
     on_write_trigger->trigger(std::vector<uint8_t>(data.begin(), data.end()), id);
   });
   return on_write_trigger;

esphome/components/ethernet/__init__.py

@@ -383,6 +383,7 @@ async def to_code(config):
     cg.add(var.set_use_address(config[CONF_USE_ADDRESS]))
 
     if CONF_MANUAL_IP in config:
+        cg.add_define("USE_ETHERNET_MANUAL_IP")
         cg.add(var.set_manual_ip(manual_ip(config[CONF_MANUAL_IP])))
 
     # Add compile-time define for PHY types with specific code

esphome/components/ethernet/ethernet_component.cpp

@@ -550,11 +550,14 @@ void EthernetComponent::start_connect_() {
   }
 
   esp_netif_ip_info_t info;
+#ifdef USE_ETHERNET_MANUAL_IP
   if (this->manual_ip_.has_value()) {
     info.ip = this->manual_ip_->static_ip;
     info.gw = this->manual_ip_->gateway;
     info.netmask = this->manual_ip_->subnet;
-  } else {
+  } else
+#endif
+  {
     info.ip.addr = 0;
     info.gw.addr = 0;
     info.netmask.addr = 0;
@@ -575,6 +578,7 @@ void EthernetComponent::start_connect_() {
   err = esp_netif_set_ip_info(this->eth_netif_, &info);
   ESPHL_ERROR_CHECK(err, "DHCPC set IP info error");
 
+#ifdef USE_ETHERNET_MANUAL_IP
   if (this->manual_ip_.has_value()) {
     LwIPLock lock;
     if (this->manual_ip_->dns1.is_set()) {
@@ -587,7 +591,9 @@ void EthernetComponent::start_connect_() {
       d = this->manual_ip_->dns2;
       dns_setserver(1, &d);
     }
-  } else {
+  } else
+#endif
+  {
     err = esp_netif_dhcpc_start(this->eth_netif_);
     if (err != ESP_ERR_ESP_NETIF_DHCP_ALREADY_STARTED) {
       ESPHL_ERROR_CHECK(err, "DHCPC start error");
@@ -685,7 +691,9 @@ void EthernetComponent::set_clk_mode(emac_rmii_clock_mode_t clk_mode) { this->cl
 void EthernetComponent::add_phy_register(PHYRegister register_value) { this->phy_registers_.push_back(register_value); }
 #endif
 void EthernetComponent::set_type(EthernetType type) { this->type_ = type; }
+#ifdef USE_ETHERNET_MANUAL_IP
 void EthernetComponent::set_manual_ip(const ManualIP &manual_ip) { this->manual_ip_ = manual_ip; }
+#endif
 
 // set_use_address() is guaranteed to be called during component setup by Python code generation,
 // so use_address_ will always be valid when get_use_address() is called - no fallback needed.

esphome/components/ethernet/ethernet_component.h

@@ -82,7 +82,9 @@ class EthernetComponent : public Component {
   void add_phy_register(PHYRegister register_value);
 #endif
   void set_type(EthernetType type);
+#ifdef USE_ETHERNET_MANUAL_IP
   void set_manual_ip(const ManualIP &manual_ip);
+#endif
   void set_fixed_mac(const std::array<uint8_t, 6> &mac) { this->fixed_mac_ = mac; }
 
   network::IPAddresses get_ip_addresses();
@@ -137,7 +139,9 @@ class EthernetComponent : public Component {
   uint8_t mdc_pin_{23};
   uint8_t mdio_pin_{18};
 #endif
+#ifdef USE_ETHERNET_MANUAL_IP
   optional<ManualIP> manual_ip_{};
+#endif
   uint32_t connect_begin_;
 
   // Group all uint8_t types together (enums and bools)

esphome/components/i2c/i2c_bus_esp_idf.cpp

@@ -107,7 +107,7 @@ void IDFI2CBus::dump_config() {
         if (s.second) {
           ESP_LOGCONFIG(TAG, "Found device at address 0x%02X", s.first);
         } else {
-          ESP_LOGCONFIG(TAG, "Unknown error at address 0x%02X", s.first);
+          ESP_LOGE(TAG, "Unknown error at address 0x%02X", s.first);
         }
       }
     }

esphome/components/mcp23016/mcp23016.cpp

@@ -56,7 +56,7 @@ void MCP23016::pin_mode(uint8_t pin, gpio::Flags flags) {
     this->update_reg_(pin, false, iodir);
   }
 }
-float MCP23016::get_setup_priority() const { return setup_priority::IO; }
+float MCP23016::get_setup_priority() const { return setup_priority::HARDWARE; }
 bool MCP23016::read_reg_(uint8_t reg, uint8_t *value) {
   if (this->is_failed())
     return false;

esphome/components/select/select.h

@@ -77,21 +77,23 @@ class Select : public EntityBase {
 
   void add_on_state_callback(std::function<void(std::string, size_t)> &&callback);
 
-  /** Set the value of the select by index, this is an optional virtual method.
-   *
-   * This method is called by the SelectCall when the index is already known.
-   * Default implementation converts to string and calls control().
-   * Override this to work directly with indices and avoid string conversions.
-   *
-   * @param index The index as validated by the SelectCall.
-   */
-  virtual void control(size_t index) { this->control(this->option_at(index)); }
-
  protected:
   friend class SelectCall;
 
   size_t active_index_{0};
 
+  /** Set the value of the select by index, this is an optional virtual method.
+   *
+   * IMPORTANT: At least ONE of the two control() methods must be overridden by derived classes.
+   * Overriding this index-based version is PREFERRED as it avoids string conversions.
+   *
+   * This method is called by the SelectCall when the index is already known.
+   * Default implementation converts to string and calls control(const std::string&).
+   *
+   * @param index The index as validated by the SelectCall.
+   */
+  virtual void control(size_t index) { this->control(this->option_at(index)); }
+
   /** Set the value of the select, this is a virtual method that each select integration can implement.
    *
    * IMPORTANT: At least ONE of the two control() methods must be overridden by derived classes.

esphome/components/sensor/sensor.cpp

@@ -74,9 +74,9 @@ StateClass Sensor::get_state_class() {
 
 void Sensor::publish_state(float state) {
   this->raw_state = state;
-
-  // Call raw callbacks (before filters)
-  this->callbacks_.call_first(this->raw_count_, state);
+  if (this->raw_callback_) {
+    this->raw_callback_->call(state);
+  }
 
   ESP_LOGV(TAG, "'%s': Received new state %f", this->name_.c_str(), state);
 
@@ -87,12 +87,12 @@ void Sensor::publish_state(float state) {
   }
 }
 
-void Sensor::add_on_state_callback(std::function<void(float)> &&callback) {
-  this->callbacks_.add_second(std::move(callback));
-}
-
+void Sensor::add_on_state_callback(std::function<void(float)> &&callback) { this->callback_.add(std::move(callback)); }
 void Sensor::add_on_raw_state_callback(std::function<void(float)> &&callback) {
-  this->callbacks_.add_first(std::move(callback), &this->raw_count_);
+  if (!this->raw_callback_) {
+    this->raw_callback_ = make_unique<CallbackManager<void(float)>>();
+  }
+  this->raw_callback_->add(std::move(callback));
 }
 
 void Sensor::add_filter(Filter *filter) {
@@ -132,10 +132,7 @@ void Sensor::internal_send_state_to_frontend(float state) {
   this->state = state;
   ESP_LOGD(TAG, "'%s': Sending state %.5f %s with %d decimals of accuracy", this->get_name().c_str(), state,
            this->get_unit_of_measurement_ref().c_str(), this->get_accuracy_decimals());
-
-  // Call filtered callbacks (after filters)
-  this->callbacks_.call_second(this->raw_count_, state);
-
+  this->callback_.call(state);
 #if defined(USE_SENSOR) && defined(USE_CONTROLLER_REGISTRY)
   ControllerRegistry::notify_sensor_update(this);
 #endif

esphome/components/sensor/sensor.h

@@ -124,7 +124,8 @@ class Sensor : public EntityBase, public EntityBase_DeviceClass, public EntityBa
   void internal_send_state_to_frontend(float state);
 
  protected:
-  PartitionedCallbackManager<void(float)> callbacks_;
+  std::unique_ptr<CallbackManager<void(float)>> raw_callback_;  ///< Storage for raw state callbacks (lazy allocated).
+  CallbackManager<void(float)> callback_;                       ///< Storage for filtered state callbacks.
 
   Filter *filter_list_{nullptr};  ///< Store all active filters.
 
@@ -139,8 +140,6 @@ class Sensor : public EntityBase, public EntityBase_DeviceClass, public EntityBa
     uint8_t force_update : 1;
     uint8_t reserved : 5;  // Reserved for future use
   } sensor_flags_{};
-
-  uint8_t raw_count_{0};  ///< Number of raw callbacks (partition point in callbacks_ vector)
 };
 
 }  // namespace sensor

esphome/components/text_sensor/text_sensor.cpp

@@ -26,9 +26,9 @@ void log_text_sensor(const char *tag, const char *prefix, const char *type, Text
 
 void TextSensor::publish_state(const std::string &state) {
   this->raw_state = state;
-
-  // Call raw callbacks (before filters)
-  this->callbacks_.call_first(this->raw_count_, state);
+  if (this->raw_callback_) {
+    this->raw_callback_->call(state);
+  }
 
   ESP_LOGV(TAG, "'%s': Received new state %s", this->name_.c_str(), state.c_str());
 
@@ -70,11 +70,13 @@ void TextSensor::clear_filters() {
 }
 
 void TextSensor::add_on_state_callback(std::function<void(std::string)> callback) {
-  this->callbacks_.add_second(std::move(callback));
+  this->callback_.add(std::move(callback));
 }
-
 void TextSensor::add_on_raw_state_callback(std::function<void(std::string)> callback) {
-  this->callbacks_.add_first(std::move(callback), &this->raw_count_);
+  if (!this->raw_callback_) {
+    this->raw_callback_ = make_unique<CallbackManager<void(std::string)>>();
+  }
+  this->raw_callback_->add(std::move(callback));
 }
 
 std::string TextSensor::get_state() const { return this->state; }
@@ -83,10 +85,7 @@ void TextSensor::internal_send_state_to_frontend(const std::string &state) {
   this->state = state;
   this->set_has_state(true);
   ESP_LOGD(TAG, "'%s': Sending state '%s'", this->name_.c_str(), state.c_str());
-
-  // Call filtered callbacks (after filters)
-  this->callbacks_.call_second(this->raw_count_, state);
-
+  this->callback_.call(state);
 #if defined(USE_TEXT_SENSOR) && defined(USE_CONTROLLER_REGISTRY)
   ControllerRegistry::notify_text_sensor_update(this);
 #endif

esphome/components/text_sensor/text_sensor.h

@@ -58,11 +58,11 @@ class TextSensor : public EntityBase, public EntityBase_DeviceClass {
   void internal_send_state_to_frontend(const std::string &state);
 
  protected:
-  PartitionedCallbackManager<void(std::string)> callbacks_;
+  std::unique_ptr<CallbackManager<void(std::string)>>
+      raw_callback_;                             ///< Storage for raw state callbacks (lazy allocated).
+  CallbackManager<void(std::string)> callback_;  ///< Storage for filtered state callbacks.
 
   Filter *filter_list_{nullptr};  ///< Store all active filters.
-
-  uint8_t raw_count_{0};  ///< Number of raw callbacks (partition point in callbacks_ vector)
 };
 
 }  // namespace text_sensor

esphome/components/web_server_idf/web_server_idf.cpp

@@ -353,9 +353,8 @@ void AsyncWebServerResponse::addHeader(const char *name, const char *value) {
 void AsyncResponseStream::print(float value) {
   // Use stack buffer to avoid temporary string allocation
   // Size: sign (1) + digits (10) + decimal (1) + precision (6) + exponent (5) + null (1) = 24, use 32 for safety
-  constexpr size_t float_buf_size = 32;
-  char buf[float_buf_size];
-  int len = snprintf(buf, float_buf_size, "%f", value);
+  char buf[32];
+  int len = snprintf(buf, sizeof(buf), "%f", value);
   this->content_.append(buf, len);
 }
 

esphome/components/wifi/__init__.py

@@ -1,5 +1,3 @@
-import logging
-
 from esphome import automation
 from esphome.automation import Condition
 import esphome.codegen as cg
@@ -44,7 +42,6 @@ from esphome.const import (
     CONF_TTLS_PHASE_2,
     CONF_USE_ADDRESS,
     CONF_USERNAME,
-    Platform,
     PlatformFramework,
 )
 from esphome.core import CORE, CoroPriority, HexInt, coroutine_with_priority
@@ -52,13 +49,10 @@ import esphome.final_validate as fv
 
 from . import wpa2_eap
 
-_LOGGER = logging.getLogger(__name__)
-
 AUTO_LOAD = ["network"]
 
 NO_WIFI_VARIANTS = [const.VARIANT_ESP32H2, const.VARIANT_ESP32P4]
 CONF_SAVE = "save"
-CONF_MIN_AUTH_MODE = "min_auth_mode"
 
 # Maximum number of WiFi networks that can be configured
 # Limited to 127 because selected_sta_index_ is int8_t in C++
@@ -76,14 +70,6 @@ WIFI_POWER_SAVE_MODES = {
     "LIGHT": WiFiPowerSaveMode.WIFI_POWER_SAVE_LIGHT,
     "HIGH": WiFiPowerSaveMode.WIFI_POWER_SAVE_HIGH,
 }
-
-WifiMinAuthMode = wifi_ns.enum("WifiMinAuthMode")
-WIFI_MIN_AUTH_MODES = {
-    "WPA": WifiMinAuthMode.WIFI_MIN_AUTH_MODE_WPA,
-    "WPA2": WifiMinAuthMode.WIFI_MIN_AUTH_MODE_WPA2,
-    "WPA3": WifiMinAuthMode.WIFI_MIN_AUTH_MODE_WPA3,
-}
-VALIDATE_WIFI_MIN_AUTH_MODE = cv.enum(WIFI_MIN_AUTH_MODES, upper=True)
 WiFiConnectedCondition = wifi_ns.class_("WiFiConnectedCondition", Condition)
 WiFiEnabledCondition = wifi_ns.class_("WiFiEnabledCondition", Condition)
 WiFiEnableAction = wifi_ns.class_("WiFiEnableAction", automation.Action)
@@ -188,7 +174,7 @@ WIFI_NETWORK_STA = WIFI_NETWORK_BASE.extend(
     {
         cv.Optional(CONF_BSSID): cv.mac_address,
         cv.Optional(CONF_HIDDEN): cv.boolean,
-        cv.Optional(CONF_PRIORITY, default=0): cv.int_range(min=-128, max=127),
+        cv.Optional(CONF_PRIORITY, default=0.0): cv.float_,
         cv.Optional(CONF_EAP): EAP_AUTH_SCHEMA,
     }
 )
@@ -201,27 +187,6 @@ def validate_variant(_):
             raise cv.Invalid(f"WiFi requires component esp32_hosted on {variant}")
 
 
-def _apply_min_auth_mode_default(config):
-    """Apply platform-specific default for min_auth_mode and warn ESP8266 users."""
-    # Only apply defaults for platforms that support min_auth_mode
-    if CONF_MIN_AUTH_MODE not in config and (CORE.is_esp8266 or CORE.is_esp32):
-        if CORE.is_esp8266:
-            _LOGGER.warning(
-                "The minimum WiFi authentication mode (wifi -> min_auth_mode) is not set. "
-                "This controls the weakest encryption your device will accept when connecting to WiFi. "
-                "Currently defaults to WPA (less secure), but will change to WPA2 (more secure) in 2026.6.0. "
-                "WPA uses TKIP encryption which has known security vulnerabilities and should be avoided. "
-                "WPA2 uses AES encryption which is significantly more secure. "
-                "To silence this warning, explicitly set min_auth_mode under 'wifi:'. "
-                "If your router supports WPA2 or WPA3, set 'min_auth_mode: WPA2'. "
-                "If your router only supports WPA, set 'min_auth_mode: WPA'."
-            )
-            config[CONF_MIN_AUTH_MODE] = VALIDATE_WIFI_MIN_AUTH_MODE("WPA")
-        elif CORE.is_esp32:
-            config[CONF_MIN_AUTH_MODE] = VALIDATE_WIFI_MIN_AUTH_MODE("WPA2")
-    return config
-
-
 def final_validate(config):
     has_sta = bool(config.get(CONF_NETWORKS, True))
     has_ap = CONF_AP in config
@@ -322,10 +287,6 @@ CONFIG_SCHEMA = cv.All(
             ): cv.enum(WIFI_POWER_SAVE_MODES, upper=True),
             cv.Optional(CONF_FAST_CONNECT, default=False): cv.boolean,
             cv.Optional(CONF_USE_ADDRESS): cv.string_strict,
-            cv.Optional(CONF_MIN_AUTH_MODE): cv.All(
-                VALIDATE_WIFI_MIN_AUTH_MODE,
-                cv.only_on([Platform.ESP32, Platform.ESP8266]),
-            ),
             cv.SplitDefault(CONF_OUTPUT_POWER, esp8266=20.0): cv.All(
                 cv.decibel, cv.float_range(min=8.5, max=20.5)
             ),
@@ -350,7 +311,6 @@ CONFIG_SCHEMA = cv.All(
             ),
         }
     ),
-    _apply_min_auth_mode_default,
     _validate,
 )
 
@@ -460,8 +420,6 @@ async def to_code(config):
 
     cg.add(var.set_reboot_timeout(config[CONF_REBOOT_TIMEOUT]))
     cg.add(var.set_power_save_mode(config[CONF_POWER_SAVE_MODE]))
-    if CONF_MIN_AUTH_MODE in config:
-        cg.add(var.set_min_auth_mode(config[CONF_MIN_AUTH_MODE]))
     if config[CONF_FAST_CONNECT]:
         cg.add_define("USE_WIFI_FAST_CONNECT")
     cg.add(var.set_passive_scan(config[CONF_PASSIVE_SCAN]))

esphome/components/wifi/wifi_component.cpp

@@ -675,7 +675,7 @@ void WiFiComponent::start_connecting(const WiFiAP &ap, bool two) {
   }
 
   ESP_LOGI(TAG,
-           "Connecting to " LOG_SECRET("'%s'") " " LOG_SECRET("(%s)") " (priority %d, attempt %u/%u in phase %s)...",
+           "Connecting to " LOG_SECRET("'%s'") " " LOG_SECRET("(%s)") " (priority %.1f, 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_),
            LOG_STR_ARG(retry_phase_to_log_string(this->retry_phase_)));
@@ -812,7 +812,7 @@ void WiFiComponent::print_connect_params_() {
                 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()));
+    ESP_LOGV(TAG, "  Priority: %.1f", this->get_sta_priority(*config->get_bssid()));
   }
 #endif
 #ifdef USE_WIFI_11KV_SUPPORT
@@ -933,7 +933,8 @@ __attribute__((noinline)) static void log_scan_result(const WiFiScanResult &res)
     ESP_LOGI(TAG, "- '%s' %s" LOG_SECRET("(%s) ") "%s", res.get_ssid().c_str(),
              res.get_is_hidden() ? LOG_STR_LITERAL("(HIDDEN) ") : LOG_STR_LITERAL(""), bssid_s,
              LOG_STR_ARG(get_signal_bars(res.get_rssi())));
-    ESP_LOGD(TAG, "  Channel: %2u, RSSI: %3d dB, Priority: %4d", res.get_channel(), res.get_rssi(), res.get_priority());
+    ESP_LOGD(TAG, "  Channel: %2u, RSSI: %3d dB, Priority: %4.1f", res.get_channel(), res.get_rssi(),
+             res.get_priority());
   } else {
     ESP_LOGD(TAG, "- " LOG_SECRET("'%s'") " " LOG_SECRET("(%s) ") "%s", res.get_ssid().c_str(), bssid_s,
              LOG_STR_ARG(get_signal_bars(res.get_rssi())));
@@ -1062,9 +1063,6 @@ void WiFiComponent::check_connecting_finished() {
     this->state_ = WIFI_COMPONENT_STATE_STA_CONNECTED;
     this->num_retried_ = 0;
 
-    // Reset all priorities if they're all the same (can't differentiate)
-    this->reset_priorities_if_all_same_();
-
 #ifdef USE_WIFI_FAST_CONNECT
     this->save_fast_connect_settings_();
 #endif
@@ -1293,27 +1291,6 @@ bool WiFiComponent::transition_to_phase_(WiFiRetryPhase new_phase) {
   return false;  // Did not start scan, can proceed with connection
 }
 
-/// Reset all BSSID priorities to 0 if they're all identical (can't differentiate)
-/// Called when starting a fresh connection attempt or after successful connection
-void WiFiComponent::reset_priorities_if_all_same_() {
-  if (this->sta_priorities_.empty()) {
-    return;
-  }
-
-  int8_t first_priority = this->sta_priorities_[0].priority;
-  for (const auto &pri : this->sta_priorities_) {
-    if (pri.priority != first_priority) {
-      return;  // Not all same, nothing to do
-    }
-  }
-
-  // All priorities are identical, reset to 0
-  ESP_LOGD(TAG, "Resetting all BSSID priorities (all identical)");
-  for (auto &pri : this->sta_priorities_) {
-    pri.priority = 0;
-  }
-}
-
 /// Log failed connection attempt and decrease BSSID priority to avoid repeated failures
 /// This function identifies which BSSID was attempted (from scan results or config),
 /// decreases its priority by 1.0 to discourage future attempts, and logs the change.
@@ -1344,9 +1321,8 @@ void WiFiComponent::log_and_adjust_priority_for_failed_connect_() {
   }
 
   // Decrease priority to avoid repeatedly trying the same failed BSSID
-  int8_t old_priority = this->get_sta_priority(failed_bssid.value());
-  int8_t new_priority =
-      (old_priority > std::numeric_limits<int8_t>::min()) ? (old_priority - 1) : std::numeric_limits<int8_t>::min();
+  float old_priority = this->get_sta_priority(failed_bssid.value());
+  float new_priority = old_priority - 1.0f;
   this->set_sta_priority(failed_bssid.value(), new_priority);
 
   // Get SSID for logging
@@ -1357,12 +1333,8 @@ void WiFiComponent::log_and_adjust_priority_for_failed_connect_() {
     ssid = config->get_ssid();
   }
 
-  ESP_LOGD(TAG, "Failed " LOG_SECRET("'%s'") " " LOG_SECRET("(%s)") ", priority %d → %d", ssid.c_str(),
+  ESP_LOGD(TAG, "Failed " LOG_SECRET("'%s'") " " LOG_SECRET("(%s)") ", priority %.1f → %.1f", ssid.c_str(),
            format_mac_address_pretty(failed_bssid.value().data()).c_str(), old_priority, new_priority);
-
-  // After adjusting priority, check if all priorities are now identical
-  // If so, reset them all to 0 to start fresh
-  this->reset_priorities_if_all_same_();
 }
 
 /// Handle target advancement or retry counter increment when staying in the same phase

esphome/components/wifi/wifi_component.h

@@ -157,7 +157,7 @@ class WiFiAP {
   void set_eap(optional<EAPAuth> eap_auth);
 #endif  // USE_WIFI_WPA2_EAP
   void set_channel(optional<uint8_t> channel);
-  void set_priority(int8_t priority) { priority_ = priority; }
+  void set_priority(float priority) { priority_ = priority; }
   void set_manual_ip(optional<ManualIP> manual_ip);
   void set_hidden(bool hidden);
   const std::string &get_ssid() const;
@@ -167,7 +167,7 @@ class WiFiAP {
   const optional<EAPAuth> &get_eap() const;
 #endif  // USE_WIFI_WPA2_EAP
   const optional<uint8_t> &get_channel() const;
-  int8_t get_priority() const { return priority_; }
+  float get_priority() const { return priority_; }
   const optional<ManualIP> &get_manual_ip() const;
   bool get_hidden() const;
 
@@ -179,8 +179,8 @@ class WiFiAP {
   optional<EAPAuth> eap_;
 #endif  // USE_WIFI_WPA2_EAP
   optional<ManualIP> manual_ip_;
+  float priority_{0};
   optional<uint8_t> channel_;
-  int8_t priority_{0};
   bool hidden_{false};
 };
 
@@ -198,17 +198,17 @@ class WiFiScanResult {
   int8_t get_rssi() const;
   bool get_with_auth() const;
   bool get_is_hidden() const;
-  int8_t get_priority() const { return priority_; }
-  void set_priority(int8_t priority) { priority_ = priority; }
+  float get_priority() const { return priority_; }
+  void set_priority(float priority) { priority_ = priority; }
 
   bool operator==(const WiFiScanResult &rhs) const;
 
  protected:
   bssid_t bssid_;
+  std::string ssid_;
+  float priority_{0.0f};
   uint8_t channel_;
   int8_t rssi_;
-  std::string ssid_;
-  int8_t priority_{0};
   bool matches_{false};
   bool with_auth_;
   bool is_hidden_;
@@ -216,7 +216,7 @@ class WiFiScanResult {
 
 struct WiFiSTAPriority {
   bssid_t bssid;
-  int8_t priority;
+  float priority;
 };
 
 enum WiFiPowerSaveMode : uint8_t {
@@ -225,12 +225,6 @@ enum WiFiPowerSaveMode : uint8_t {
   WIFI_POWER_SAVE_HIGH,
 };
 
-enum WifiMinAuthMode : uint8_t {
-  WIFI_MIN_AUTH_MODE_WPA = 0,
-  WIFI_MIN_AUTH_MODE_WPA2,
-  WIFI_MIN_AUTH_MODE_WPA3,
-};
-
 #ifdef USE_ESP32
 struct IDFWiFiEvent;
 #endif
@@ -280,7 +274,6 @@ class WiFiComponent : public Component {
   bool is_connected();
 
   void set_power_save_mode(WiFiPowerSaveMode power_save);
-  void set_min_auth_mode(WifiMinAuthMode min_auth_mode) { min_auth_mode_ = min_auth_mode; }
   void set_output_power(float output_power) { output_power_ = output_power; }
 
   void set_passive_scan(bool passive);
@@ -324,14 +317,14 @@ class WiFiComponent : public Component {
     }
     return false;
   }
-  int8_t get_sta_priority(const bssid_t bssid) {
+  float get_sta_priority(const bssid_t bssid) {
     for (auto &it : this->sta_priorities_) {
       if (it.bssid == bssid)
         return it.priority;
     }
-    return 0;
+    return 0.0f;
   }
-  void set_sta_priority(const bssid_t bssid, int8_t priority) {
+  void set_sta_priority(const bssid_t bssid, float priority) {
     for (auto &it : this->sta_priorities_) {
       if (it.bssid == bssid) {
         it.priority = priority;
@@ -390,8 +383,6 @@ class WiFiComponent : public Component {
   int8_t find_next_hidden_sta_(int8_t start_index, bool include_explicit_hidden = true);
   /// Log failed connection and decrease BSSID priority to avoid repeated attempts
   void log_and_adjust_priority_for_failed_connect_();
-  /// Reset all BSSID priorities to 0 if they're all identical (can't differentiate)
-  void reset_priorities_if_all_same_();
   /// Advance to next target (AP/SSID) within current phase, or increment retry counter
   /// Called when staying in the same phase after a failed connection attempt
   void advance_to_next_target_or_increment_retry_();
@@ -498,7 +489,6 @@ class WiFiComponent : public Component {
   // Group all 8-bit values together
   WiFiComponentState state_{WIFI_COMPONENT_STATE_OFF};
   WiFiPowerSaveMode power_save_{WIFI_POWER_SAVE_NONE};
-  WifiMinAuthMode min_auth_mode_{WIFI_MIN_AUTH_MODE_WPA2};
   WiFiRetryPhase retry_phase_{WiFiRetryPhase::INITIAL_CONNECT};
   uint8_t num_retried_{0};
   // Index into sta_ array for the currently selected AP configuration (-1 = none selected)

esphome/components/wifi/wifi_component_esp8266.cpp

@@ -258,17 +258,8 @@ bool WiFiComponent::wifi_sta_connect_(const WiFiAP &ap) {
   if (ap.get_password().empty()) {
     conf.threshold.authmode = AUTH_OPEN;
   } else {
-    // Set threshold based on configured minimum auth mode
-    // Note: ESP8266 doesn't support WPA3
-    switch (this->min_auth_mode_) {
-      case WIFI_MIN_AUTH_MODE_WPA:
-        conf.threshold.authmode = AUTH_WPA_PSK;
-        break;
-      case WIFI_MIN_AUTH_MODE_WPA2:
-      case WIFI_MIN_AUTH_MODE_WPA3:  // Fall back to WPA2 for ESP8266
-        conf.threshold.authmode = AUTH_WPA2_PSK;
-        break;
-    }
+    // Only allow auth modes with at least WPA
+    conf.threshold.authmode = AUTH_WPA_PSK;
   }
   conf.threshold.rssi = -127;
 #endif

esphome/components/wifi/wifi_component_esp_idf.cpp

@@ -308,18 +308,7 @@ bool WiFiComponent::wifi_sta_connect_(const WiFiAP &ap) {
   if (ap.get_password().empty()) {
     conf.sta.threshold.authmode = WIFI_AUTH_OPEN;
   } else {
-    // Set threshold based on configured minimum auth mode
-    switch (this->min_auth_mode_) {
-      case WIFI_MIN_AUTH_MODE_WPA:
-        conf.sta.threshold.authmode = WIFI_AUTH_WPA_PSK;
-        break;
-      case WIFI_MIN_AUTH_MODE_WPA2:
-        conf.sta.threshold.authmode = WIFI_AUTH_WPA2_PSK;
-        break;
-      case WIFI_MIN_AUTH_MODE_WPA3:
-        conf.sta.threshold.authmode = WIFI_AUTH_WPA3_PSK;
-        break;
-    }
+    conf.sta.threshold.authmode = WIFI_AUTH_WPA_WPA2_PSK;
   }
 
 #ifdef USE_WIFI_WPA2_EAP
@@ -358,6 +347,8 @@ bool WiFiComponent::wifi_sta_connect_(const WiFiAP &ap) {
   // The minimum rssi to accept in the fast scan mode
   conf.sta.threshold.rssi = -127;
 
+  conf.sta.threshold.authmode = WIFI_AUTH_OPEN;
+
   wifi_config_t current_conf;
   esp_err_t err;
   err = esp_wifi_get_config(WIFI_IF_STA, &current_conf);

esphome/core/__init__.py

@@ -710,15 +710,6 @@ class EsphomeCore:
     def relative_piolibdeps_path(self, *path: str | Path) -> Path:
         return self.relative_build_path(".piolibdeps", *path)
 
-    @property
-    def platformio_cache_dir(self) -> str:
-        """Get the PlatformIO cache directory path."""
-        # Check if running in Docker/HA addon with custom cache dir
-        if (cache_dir := os.environ.get("PLATFORMIO_CACHE_DIR")) and cache_dir.strip():
-            return cache_dir
-        # Default PlatformIO cache location
-        return os.path.expanduser("~/.platformio/.cache")
-
     @property
     def firmware_bin(self) -> Path:
         if self.is_libretiny:

esphome/core/defines.h

@@ -215,6 +215,7 @@
 #define USE_ARDUINO_VERSION_CODE VERSION_CODE(3, 3, 2)
 #define USE_ETHERNET
 #define USE_ETHERNET_KSZ8081
+#define USE_ETHERNET_MANUAL_IP
 #endif
 
 #ifdef USE_ESP_IDF

esphome/core/helpers.cpp

@@ -414,8 +414,10 @@ int8_t step_to_accuracy_decimals(float step) {
   return str.length() - dot_pos - 1;
 }
 
-// Store BASE64 characters as array - automatically placed in flash/ROM on embedded platforms
-static const char BASE64_CHARS[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
+// Use C-style string constant to store in ROM instead of RAM (saves 24 bytes)
+static constexpr const char *BASE64_CHARS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+                                            "abcdefghijklmnopqrstuvwxyz"
+                                            "0123456789+/";
 
 // Helper function to find the index of a base64 character in the lookup table.
 // Returns the character's position (0-63) if found, or 0 if not found.
@@ -425,8 +427,8 @@ static const char BASE64_CHARS[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqr
 // stops processing at the first invalid character due to the is_base64() check in its
 // while loop condition, making this edge case harmless in practice.
 static inline uint8_t base64_find_char(char c) {
-  const void *ptr = memchr(BASE64_CHARS, c, sizeof(BASE64_CHARS));
-  return ptr ? (static_cast<const char *>(ptr) - BASE64_CHARS) : 0;
+  const char *pos = strchr(BASE64_CHARS, c);
+  return pos ? (pos - BASE64_CHARS) : 0;
 }
 
 static inline bool is_base64(char c) { return (isalnum(c) || (c == '+') || (c == '/')); }

esphome/core/helpers.h

@@ -145,9 +145,6 @@ template<typename T, size_t N> class StaticVector {
   size_t size() const { return count_; }
   bool empty() const { return count_ == 0; }
 
-  // Direct access to size counter for efficient in-place construction
-  size_t &count() { return count_; }
-
   T &operator[](size_t i) { return data_[i]; }
   const T &operator[](size_t i) const { return data_[i]; }
 
@@ -872,73 +869,6 @@ template<typename... Ts> class CallbackManager<void(Ts...)> {
   std::vector<std::function<void(Ts...)>> callbacks_;
 };
 
-template<typename... X> class PartitionedCallbackManager;
-
-/** Helper class for callbacks partitioned into two sections.
- *
- * Uses a single vector partitioned into two sections: [first_0, ..., first_m-1, second_0, ..., second_n-1]
- * The partition point is tracked externally by the caller (typically stored in the entity class for optimal alignment).
- *
- * Memory efficient: Only stores a single pointer (4 bytes on 32-bit platforms, 8 bytes on 64-bit platforms).
- * The partition count lives in the entity class where it can be packed with other small fields to avoid padding waste.
- *
- * Design rationale: The asymmetric API (add_first takes first_count*, while call_first/call_second take it by value)
- * is intentional - add_first must increment the count, while call methods only read it. This avoids storing first_count
- * internally, saving memory per instance.
- *
- * @tparam Ts The arguments for the callbacks, wrapped in void().
- */
-template<typename... Ts> class PartitionedCallbackManager<void(Ts...)> {
- public:
-  /// Add a callback to the first partition.
-  void add_first(std::function<void(Ts...)> &&callback, uint8_t *first_count) {
-    if (!this->callbacks_) {
-      this->callbacks_ = make_unique<std::vector<std::function<void(Ts...)>>>();
-    }
-
-    // Add to first partition: append then rotate into position
-    this->callbacks_->push_back(std::move(callback));
-    // Avoid potential underflow: rewrite comparison to not subtract from size()
-    if (*first_count + 1 < this->callbacks_->size()) {
-      // Use std::rotate to maintain registration order in second partition
-      std::rotate(this->callbacks_->begin() + *first_count, this->callbacks_->end() - 1, this->callbacks_->end());
-    }
-    (*first_count)++;
-  }
-
-  /// Add a callback to the second partition.
-  void add_second(std::function<void(Ts...)> &&callback) {
-    if (!this->callbacks_) {
-      this->callbacks_ = make_unique<std::vector<std::function<void(Ts...)>>>();
-    }
-
-    // Add to second partition: just append (already at end after first partition)
-    this->callbacks_->push_back(std::move(callback));
-  }
-
-  /// Call all callbacks in the first partition.
-  void call_first(uint8_t first_count, Ts... args) {
-    if (this->callbacks_) {
-      for (size_t i = 0; i < first_count; i++) {
-        (*this->callbacks_)[i](args...);
-      }
-    }
-  }
-
-  /// Call all callbacks in the second partition.
-  void call_second(uint8_t first_count, Ts... args) {
-    if (this->callbacks_) {
-      for (size_t i = first_count; i < this->callbacks_->size(); i++) {
-        (*this->callbacks_)[i](args...);
-      }
-    }
-  }
-
- protected:
-  /// Partitioned callback storage: [first_0, ..., first_m-1, second_0, ..., second_n-1]
-  std::unique_ptr<std::vector<std::function<void(Ts...)>>> callbacks_;
-};
-
 /// Helper class to deduplicate items in a series of values.
 template<typename T> class Deduplicator {
  public:
@@ -1244,12 +1174,18 @@ template<class T> using ExternalRAMAllocator = RAMAllocator<T>;
  * Functions to constrain the range of arithmetic values.
  */
 
-template<std::totally_ordered T> T clamp_at_least(T value, T min) {
+template<typename T, typename U>
+concept comparable_with = requires(T a, U b) {
+  { a > b } -> std::convertible_to<bool>;
+  { a < b } -> std::convertible_to<bool>;
+};
+
+template<std::totally_ordered T, comparable_with<T> U> T clamp_at_least(T value, U min) {
   if (value < min)
     return min;
   return value;
 }
-template<std::totally_ordered T> T clamp_at_most(T value, T max) {
+template<std::totally_ordered T, comparable_with<T> U> T clamp_at_most(T value, U max) {
   if (value > max)
     return max;
   return value;

esphome/core/scheduler.h

@@ -94,9 +94,10 @@ class Scheduler {
     } name_;
     uint32_t interval;
     // Split time to handle millis() rollover. The scheduler combines the 32-bit millis()
-    // with a 16-bit rollover counter to create a 48-bit time space (stored as 64-bit
-    // for compatibility). With 49.7 days per 32-bit rollover, the 16-bit counter
-    // supports 49.7 days × 65536 = ~8900 years. This ensures correct scheduling
+    // with a 16-bit rollover counter to create a 48-bit time space (using 32+16 bits).
+    // This is intentionally limited to 48 bits, not stored as a full 64-bit value.
+    // With 49.7 days per 32-bit rollover, the 16-bit counter supports
+    // 49.7 days × 65536 = ~8900 years. This ensures correct scheduling
     // even when devices run for months. Split into two fields for better memory
     // alignment on 32-bit systems.
     uint32_t next_execution_low_;  // Lower 32 bits of execution time (millis value)

esphome/platformio_api.py

@@ -145,16 +145,7 @@ def run_compile(config, verbose):
     args = []
     if CONF_COMPILE_PROCESS_LIMIT in config[CONF_ESPHOME]:
         args += [f"-j{config[CONF_ESPHOME][CONF_COMPILE_PROCESS_LIMIT]}"]
-    result = run_platformio_cli_run(config, verbose, *args)
-
-    # Run memory analysis if enabled
-    if config.get(CONF_ESPHOME, {}).get("analyze_memory", False):
-        try:
-            analyze_memory_usage(config)
-        except Exception as e:
-            _LOGGER.warning("Failed to analyze memory usage: %s", e)
-
-    return result
+    return run_platformio_cli_run(config, verbose, *args)
 
 
 def _run_idedata(config):
@@ -403,74 +394,3 @@ class IDEData:
             if path.endswith(".exe")
             else f"{path[:-3]}readelf"
         )
-
-
-def analyze_memory_usage(config: dict[str, Any]) -> None:
-    """Analyze memory usage by component after compilation."""
-    # Lazy import to avoid overhead when not needed
-    from esphome.analyze_memory.cli import MemoryAnalyzerCLI
-    from esphome.analyze_memory.helpers import get_esphome_components
-
-    idedata = get_idedata(config)
-
-    # Get paths to tools
-    elf_path = idedata.firmware_elf_path
-    objdump_path = idedata.objdump_path
-    readelf_path = idedata.readelf_path
-
-    # Debug logging
-    _LOGGER.debug("ELF path from idedata: %s", elf_path)
-
-    # Check if file exists
-    if not Path(elf_path).exists():
-        # Try alternate path
-        alt_path = Path(CORE.relative_build_path(".pioenvs", CORE.name, "firmware.elf"))
-        if alt_path.exists():
-            elf_path = str(alt_path)
-            _LOGGER.debug("Using alternate ELF path: %s", elf_path)
-        else:
-            _LOGGER.warning("ELF file not found at %s or %s", elf_path, alt_path)
-            return
-
-    # Extract external components from config
-    external_components = set()
-
-    # Get the list of built-in ESPHome components
-    builtin_components = get_esphome_components()
-
-    # Special non-component keys that appear in configs
-    NON_COMPONENT_KEYS = {
-        CONF_ESPHOME,
-        "substitutions",
-        "packages",
-        "globals",
-        "<<",
-    }
-
-    # Check all top-level keys in config
-    for key in config:
-        if key not in builtin_components and key not in NON_COMPONENT_KEYS:
-            # This is an external component
-            external_components.add(key)
-
-    _LOGGER.debug("Detected external components: %s", external_components)
-
-    # Create analyzer and run analysis
-    analyzer = MemoryAnalyzerCLI(
-        elf_path, objdump_path, readelf_path, external_components
-    )
-    analyzer.analyze()
-
-    # Generate and print report
-    report = analyzer.generate_report()
-    _LOGGER.info("\n%s", report)
-
-    # Optionally save to file
-    if config.get(CONF_ESPHOME, {}).get("memory_report_file"):
-        report_file = Path(config[CONF_ESPHOME]["memory_report_file"])
-        if report_file.suffix == ".json":
-            report_file.write_text(analyzer.to_json())
-            _LOGGER.info("Memory report saved to %s", report_file)
-        else:
-            report_file.write_text(report)
-            _LOGGER.info("Memory report saved to %s", report_file)

tests/component_tests/text/test_text.py

@@ -66,6 +66,5 @@ def test_text_config_lamda_is_set(generate_main):
     main_cpp = generate_main("tests/component_tests/text/test_text.yaml")
 
     # Then
-    # Stateless lambda optimization: empty capture list allows function pointer conversion
     assert "it_4->set_template([]() -> esphome::optional<std::string> {" in main_cpp
     assert 'return std::string{"Hello"};' in main_cpp

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

@@ -2,7 +2,6 @@ psram:
 
 wifi:
   use_psram: true
-  min_auth_mode: WPA
 
 packages:
   - !include common.yaml

tests/components/wifi/test.esp8266-ard.yaml

@@ -1,5 +1 @@
-wifi:
-  min_auth_mode: WPA2
-
-packages:
-  - !include common.yaml
+<<: !include common.yaml

tests/integration/fixtures/api_user_services_union.yaml

@@ -1,59 +0,0 @@
-esphome:
-  name: test-user-services-union
-  friendly_name: Test User Services Union Storage
-
-esp32:
-  board: esp32dev
-  framework:
-    type: esp-idf
-
-logger:
-  level: DEBUG
-
-wifi:
-  ssid: "test"
-  password: "password"
-
-api:
-  actions:
-    # Test service with no arguments
-    - action: test_no_args
-      then:
-        - logger.log: "No args service called"
-
-    # Test service with one argument
-    - action: test_one_arg
-      variables:
-        value: int
-      then:
-        - logger.log:
-            format: "One arg service: %d"
-            args: [value]
-
-    # Test service with multiple arguments of different types
-    - action: test_multi_args
-      variables:
-        int_val: int
-        float_val: float
-        str_val: string
-        bool_val: bool
-      then:
-        - logger.log:
-            format: "Multi args: %d, %.2f, %s, %d"
-            args: [int_val, float_val, str_val.c_str(), bool_val]
-
-    # Test service with max typical arguments
-    - action: test_many_args
-      variables:
-        arg1: int
-        arg2: int
-        arg3: int
-        arg4: string
-        arg5: float
-      then:
-        - logger.log: "Many args service called"
-
-binary_sensor:
-  - platform: template
-    name: "Test Binary Sensor"
-    id: test_sensor

tests/unit_tests/test_writer.py

@@ -355,7 +355,6 @@ def test_clean_build(
     mock_core.relative_pioenvs_path.return_value = pioenvs_dir
     mock_core.relative_piolibdeps_path.return_value = piolibdeps_dir
     mock_core.relative_build_path.return_value = dependencies_lock
-    mock_core.platformio_cache_dir = str(platformio_cache_dir)
 
     # Verify all exist before
     assert pioenvs_dir.exists()