Release Magisk v30.3

[skip ci]

Author: topjohnwu

app/gradle.properties

@@ -30,4 +30,4 @@ android.nonFinalResIds=false
 
 # Magisk
 magisk.stubVersion=40
-magisk.versionCode=30200
+magisk.versionCode=30300

docs/changes.md

@@ -1,5 +1,12 @@
 # Magisk Changelog
 
+### v30.3 (2025.9.29)
+
+- [General] Support installing Magisk into vendor_boot partition
+- [MagiskPolicy] Support new sepolicy binary format introduced in Android 16 QPR2
+- [Core] Migrate much more code into Rust
+- [MagiskSU] Fallback to older implementation when the kernel doesn't support zero userspace copy APIs
+
 ### v30.2 (2025.8.6)
 
 - [Core] Fix an edge case breaking modules when overlayfs is involved