From fb009f47f10894cca446caa817f8cac061bf2fcf Mon Sep 17 00:00:00 2001
From: Jonathan Swoboda <154711427+swoboda1337@users.noreply.github.com>
Date: Mon, 22 Dec 2025 14:08:04 -0500
Subject: [PATCH] Deprecate again

---
 esphome/core/__init__.py | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/esphome/core/__init__.py b/esphome/core/__init__.py
index 88700476bf..4dd9eae4bb 100644
--- a/esphome/core/__init__.py
+++ b/esphome/core/__init__.py
@@ -798,7 +798,12 @@ class EsphomeCore:
 
     @property
     def using_esp_idf(self):
-        return self.target_platform == PLATFORM_ESP32
+        _LOGGER.warning(
+            "CORE.using_esp_idf was deprecated in 2026.1, will be change behavior in 2026.6. "
+            "ESP32 Arduino builds on top of ESP-IDF, so ESP-IDF features are available in both frameworks. "
+            "Use CORE.is_esp32 and/or CORE.using_arduino instead."
+        )
+        return self.target_framework == "esp-idf"
 
     @property
     def using_zephyr(self):