From e7c3277eeb095a5b3e2c88ca4c7631d43528099c Mon Sep 17 00:00:00 2001
From: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
Date: Thu, 12 Mar 2026 07:34:53 +1300
Subject: [PATCH 1/2] Bump version to 2026.4.0-dev

---
 Doxyfile         | 2 +-
 esphome/const.py | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Doxyfile b/Doxyfile
index 1a9e0b4e10..cfdb74bd19 100644
--- a/Doxyfile
+++ b/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         = 2026.3.0-dev
+PROJECT_NUMBER         = 2026.4.0-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
diff --git a/esphome/const.py b/esphome/const.py
index d409514f3c..33a2526d38 100644
--- a/esphome/const.py
+++ b/esphome/const.py
@@ -4,7 +4,7 @@ from enum import Enum
 
 from esphome.enum import StrEnum
 
-__version__ = "2026.3.0-dev"
+__version__ = "2026.4.0-dev"
 
 ALLOWED_NAME_CHARS = "abcdefghijklmnopqrstuvwxyz0123456789-_"
 VALID_SUBSTITUTIONS_CHARACTERS = (

From 928f6f18660af1ffde5a1fc91f02c8a31fd43021 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@koston.org>
Date: Wed, 11 Mar 2026 08:57:43 -1000
Subject: [PATCH 2/2] [ci] Add PR title check for unescaped angle brackets
 (#14701)

---
 .github/workflows/pr-title-check.yml | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/.github/workflows/pr-title-check.yml b/.github/workflows/pr-title-check.yml
index 198b9a6b25..2ad023ed1b 100644
--- a/.github/workflows/pr-title-check.yml
+++ b/.github/workflows/pr-title-check.yml
@@ -65,6 +65,18 @@ jobs:
               return;
             }
 
+            // Check for angle brackets not wrapped in backticks.
+            // Astro docs MDX treats bare < as JSX component opening tags.
+            const stripped = title.replace(/`[^`]*`/g, '');
+            if (/[<>]/.test(stripped)) {
+              core.setFailed(
+                'PR title contains `<` or `>` not wrapped in backticks.\n' +
+                'Astro docs MDX interprets bare `<` as JSX components.\n' +
+                'Please wrap angle brackets with backticks, e.g.: [component] Add `<feature>` support'
+              );
+              return;
+            }
+
             // Check title starts with [tag] prefix
             const bracketPattern = /^\[\w+\]/;
             if (!bracketPattern.test(title)) {