diff --git a/changelogs/5.20.md b/changelogs/5.20.md
new file mode 100644
index 00000000000..8d7e971d93b
--- /dev/null
+++ b/changelogs/5.20.md
@@ -0,0 +1,19 @@
+# 5.20.0
+Released 26th October 2024.
+
+**For Minecraft: Bedrock Edition 1.21.40**
+
+This is a support release for Minecraft: Bedrock Edition 1.21.40.
+
+**Plugin compatibility:** Plugins for previous 5.x versions will run unchanged on this release, unless they use internal APIs, reflection, or packages like the `pocketmine\network\mcpe`  or `pocketmine\data` namespace.
+Do not update plugin minimum API versions unless you need new features added in this release.
+
+**WARNING: If your plugin uses the `pocketmine\network\mcpe` namespace, you're not shielded by API change constraints.**
+Consider using the `mcpe-protocol` directive in `plugin.yml` as a constraint if you're using packets directly.
+
+## General
+- Added support for Minecraft: Bedrock Edition 1.21.40.
+- Removed support for earlier versions.
+
+## Fixes
+- Fixed a bug in `tools/generate-blockstate-upgrade-schema.php` that caused it to fail on 1.21.40 with the new mushroom block changes.
diff --git a/src/VersionInfo.php b/src/VersionInfo.php
index b2d2fe4abe0..b61df1001ab 100644
--- a/src/VersionInfo.php
+++ b/src/VersionInfo.php
@@ -31,8 +31,8 @@
 
 final class VersionInfo{
 	public const NAME = "PocketMine-MP";
-	public const BASE_VERSION = "5.19.1";
-	public const IS_DEVELOPMENT_BUILD = true;
+	public const BASE_VERSION = "5.20.0";
+	public const IS_DEVELOPMENT_BUILD = false;
 	public const BUILD_CHANNEL = "stable";
 
 	/**