diff --git a/esphome/components/e131/e131.cpp b/esphome/components/e131/e131.cpp
index d18d945cec..c10c88faf2 100644
--- a/esphome/components/e131/e131.cpp
+++ b/esphome/components/e131/e131.cpp
@@ -3,6 +3,8 @@
 #include "e131_addressable_light_effect.h"
 #include "esphome/core/log.h"
 
+#include <algorithm>
+
 namespace esphome {
 namespace e131 {
 
@@ -76,14 +78,14 @@ void E131Component::loop() {
 }
 
 void E131Component::add_effect(E131AddressableLightEffect *light_effect) {
-  if (light_effects_.count(light_effect)) {
+  if (std::find(light_effects_.begin(), light_effects_.end(), light_effect) != light_effects_.end()) {
     return;
   }
 
   ESP_LOGD(TAG, "Registering '%s' for universes %d-%d.", light_effect->get_name(), light_effect->get_first_universe(),
            light_effect->get_last_universe());
 
-  light_effects_.insert(light_effect);
+  light_effects_.push_back(light_effect);
 
   for (auto universe = light_effect->get_first_universe(); universe <= light_effect->get_last_universe(); ++universe) {
     join_(universe);
@@ -91,14 +93,17 @@ void E131Component::add_effect(E131AddressableLightEffect *light_effect) {
 }
 
 void E131Component::remove_effect(E131AddressableLightEffect *light_effect) {
-  if (!light_effects_.count(light_effect)) {
+  auto it = std::find(light_effects_.begin(), light_effects_.end(), light_effect);
+  if (it == light_effects_.end()) {
     return;
   }
 
   ESP_LOGD(TAG, "Unregistering '%s' for universes %d-%d.", light_effect->get_name(), light_effect->get_first_universe(),
            light_effect->get_last_universe());
 
-  light_effects_.erase(light_effect);
+  // Swap with last element and pop for O(1) removal (order doesn't matter)
+  *it = light_effects_.back();
+  light_effects_.pop_back();
 
   for (auto universe = light_effect->get_first_universe(); universe <= light_effect->get_last_universe(); ++universe) {
     leave_(universe);
diff --git a/esphome/components/e131/e131.h b/esphome/components/e131/e131.h
index d0e38fa98c..831138a545 100644
--- a/esphome/components/e131/e131.h
+++ b/esphome/components/e131/e131.h
@@ -7,7 +7,6 @@
 #include <cinttypes>
 #include <map>
 #include <memory>
-#include <set>
 #include <vector>
 
 namespace esphome {
@@ -47,9 +46,8 @@ class E131Component : public esphome::Component {
 
   E131ListenMethod listen_method_{E131_MULTICAST};
   std::unique_ptr<socket::Socket> socket_;
-  std::set<E131AddressableLightEffect *> light_effects_;
+  std::vector<E131AddressableLightEffect *> light_effects_;
   std::map<int, int> universe_consumers_;
-  std::map<int, E131Packet> universe_packets_;
 };
 
 }  // namespace e131
diff --git a/requirements.txt b/requirements.txt
index b0d7d62c36..660b18c933 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -12,7 +12,7 @@ platformio==6.1.18  # When updating platformio, also update /docker/Dockerfile
 esptool==5.1.0
 click==8.1.7
 esphome-dashboard==20251013.0
-aioesphomeapi==42.4.0
+aioesphomeapi==42.5.0
 zeroconf==0.148.0
 puremagic==1.30
 ruamel.yaml==0.18.16 # dashboard_import
diff --git a/script/helpers.py b/script/helpers.py
index 78c11b427e..447d54fa54 100644
--- a/script/helpers.py
+++ b/script/helpers.py
@@ -90,16 +90,18 @@ def get_component_from_path(file_path: str) -> str | None:
     """Extract component name from a file path.
 
     Args:
-        file_path: Path to a file (e.g., "esphome/components/wifi/wifi.cpp")
+        file_path: Path to a file (e.g., "esphome/components/wifi/wifi.cpp"
+                                or "tests/components/uart/test.esp32-idf.yaml")
 
     Returns:
-        Component name if path is in components directory, None otherwise
+        Component name if path is in components or tests directory, None otherwise
     """
-    if not file_path.startswith(ESPHOME_COMPONENTS_PATH):
-        return None
-    parts = file_path.split("/")
-    if len(parts) >= 3:
-        return parts[2]
+    if file_path.startswith(ESPHOME_COMPONENTS_PATH) or file_path.startswith(
+        ESPHOME_TESTS_COMPONENTS_PATH
+    ):
+        parts = file_path.split("/")
+        if len(parts) >= 3 and parts[2]:
+            return parts[2]
     return None
 
 
diff --git a/tests/script/test_helpers.py b/tests/script/test_helpers.py
index 63f1f0e600..1046512a14 100644
--- a/tests/script/test_helpers.py
+++ b/tests/script/test_helpers.py
@@ -1065,3 +1065,39 @@ def test_parse_list_components_output(output: str, expected: list[str]) -> None:
     """Test parse_list_components_output function."""
     result = helpers.parse_list_components_output(output)
     assert result == expected
+
+
+@pytest.mark.parametrize(
+    ("file_path", "expected_component"),
+    [
+        # Component files
+        ("esphome/components/wifi/wifi.cpp", "wifi"),
+        ("esphome/components/uart/uart.h", "uart"),
+        ("esphome/components/api/api_server.cpp", "api"),
+        ("esphome/components/sensor/sensor.cpp", "sensor"),
+        # Test files
+        ("tests/components/uart/test.esp32-idf.yaml", "uart"),
+        ("tests/components/wifi/test.esp8266-ard.yaml", "wifi"),
+        ("tests/components/sensor/test.esp32-idf.yaml", "sensor"),
+        ("tests/components/api/test_api.cpp", "api"),
+        ("tests/components/uart/common.h", "uart"),
+        # Non-component files
+        ("esphome/core/component.cpp", None),
+        ("esphome/core/helpers.h", None),
+        ("tests/integration/test_api.py", None),
+        ("tests/unit_tests/test_helpers.py", None),
+        ("README.md", None),
+        ("script/helpers.py", None),
+        # Edge cases
+        ("esphome/components/", None),  # No component name
+        ("tests/components/", None),  # No component name
+        ("esphome/components", None),  # No trailing slash
+        ("tests/components", None),  # No trailing slash
+    ],
+)
+def test_get_component_from_path(
+    file_path: str, expected_component: str | None
+) -> None:
+    """Test extraction of component names from file paths."""
+    result = helpers.get_component_from_path(file_path)
+    assert result == expected_component