diff --git a/changelogs/5.2.md b/changelogs/5.2.md
index 5795a027a..75f31a076 100644
--- a/changelogs/5.2.md
+++ b/changelogs/5.2.md
@@ -69,3 +69,11 @@ Consider using the `mcpe-protocol` directive in `plugin.yml` as a constraint if
 - `AsyncTask::$threadLocalStorage` now uses a plain `array` instead of `ArrayObject`. The `ArrayObject` was a workaround for `ext-pthreads` to prevent thread-locals getting copied to the worker thread, and is no longer necessary.
 - Regenerated `pocketmine\data\bedrock\item\ItemTypeNames` for Bedrock 1.20 (BC breaking, some item names have changed).
 - Fixed `build/generate-item-type-names.php` not including some newer blockitems, such as doors and hanging signs.
+
+# 5.2.1
+Released 11th July 2023.
+
+**This release includes changes from the following releases:**
+- [4.22.3](https://github.com/pmmp/PocketMine-MP/blob/4.22.3/changelogs/4.22.md#4223) - Fixes for some crash issues
+
+This release contains no other changes.
diff --git a/src/VersionInfo.php b/src/VersionInfo.php
index 2e9a6b75b..3cebf3e65 100644
--- a/src/VersionInfo.php
+++ b/src/VersionInfo.php
@@ -32,7 +32,7 @@ use function str_repeat;
 final class VersionInfo{
 	public const NAME = "PocketMine-MP";
 	public const BASE_VERSION = "5.2.1";
-	public const IS_DEVELOPMENT_BUILD = true;
+	public const IS_DEVELOPMENT_BUILD = false;
 	public const BUILD_CHANNEL = "stable";
 
 	/**