Update changelog with recent additions

CHANGELOG.md

@@ -165,6 +165,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 
 - [Built-in vector types now use copy-on-write mode as originally intended](https://godotengine.org/article/why-we-broke-your-pr), resulting in increased engine performance.
 - The [mbedtls](https://tls.mbed.org/) library is now used instead of OpenSSL.
+- [Renamed several core files](https://github.com/godotengine/godot/pull/25821).
+  - Third-party modules may have to be updated to reflect this.
 - SSL certificates are now bundled in exported projects unless a custom bundle is specified.
 - Improved buffer writing performance on Windows and Linux.
 - Removed many debugging prints in the console.
@@ -183,10 +185,17 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - Text editor themes are now sorted alphabetically in the selection dropdown.
 - The 3D manipulator gizmo now has a smoother, more detailed appearance.
 - The 3D viewport menu button now has a background to make it easier to read.
+- QuadMeshes are now built using two triangles (6 vertices) instead of one quad (4 vertices).
+  - This was done because quads are deprecated in OpenGL.
 - Controls inside containers are no longer movable or resizable but can still be selected.
 - The `is` GDScript keyword can now be used to compare a value against built-in types.
+- Exported variables with type hints are now always initialized.
+  - For example, `export(int) var a` will be initialized to `0`.
 - Named enums in GDScript no longer create script constants.
   - This means `enum Name { VALUE }` must now be accessed with `Name.VALUE` instead of `VALUE`.
+- Cyclic references to other scripts with `preload()` are no longer allowed.
+  - `load()` should be used in at least one of the scripts instead.
+- `switch`, `case` and `do` are no longer reserved identifiers in GDScript.
 - Shadowing variables from parent scopes is no longer allowed in GDScript.
 - Function parameters' default values can no longer depend on other parameters in GDScript.
 - Indentation guides are now displayed in a more subtle way in the script editor.
@@ -209,6 +218,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 
 ### Removed
 
+- Removed the RtAudio backend on Windows in favor of WASAPI, which is the default since 3.0.
 - **macOS:** Support for 32-bit and fat binaries.
 
 ### Fixed
@@ -220,6 +230,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - The animation editor time offset indicator no longer "walks" when resizing the editor.
 - Allow creation of a built-in GDScript file even if the filename suggested already exists.
 - Show tooltips in the editor when physics object picking is disabled.
+- Button shortcuts can now be triggered by gamepad buttons.
 - Fix a serialization bug that could cause TSCN files to grow very large.
 - Gizmos are now properly hidden on scene load if the object they control is hidden.
 - Camera gizmos in the 3D viewport no longer look twice as wide as they actually are.
@@ -231,6 +242,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - The Visual Studio Code external editor option now recognizes more binary names such as `code-oss`, making detection more reliable.
 - The `-ffast-math` flag is no longer used when compiling Godot, resulting in increased floating-point determinism.
 - Fix spelling of `apply_torque_impulse()` and deprecate the misspelled method.
+- Escape sequences like `\n` and `\t` are now recognized in CSV translation files.
 - Remove spurious errors when using a PanoramaSky without textures.
 - The lightmap baker will now use all available cores on Windows.
 - Bullet physics now correctly calculates effective gravity on KinematicBodies.