Release Notes for 453

New API to allow asset types to be verified so that Humanoid:ApplyDescription can be used more securely.

New API InsertService:CreateMeshPartAsync, MeshPart:ApplyMesh and MeshPart.MeshSize

Luau will no longer allow you to narrow a type in an if statement if the type is not built-in.

Luau is now stricter with regards to type validation of binary and unary operators; strings are no longer allowed as part of arithmetic binary expressions.

Optimization of multiple parallel calls to Players:GetUserIdFromNameAsync or Players:GetNameFromUserIdAsync. The UsersService remains the preferred way to collect player info in bulk.

Luau Types: Improve error message given when the types of operands used for a comparison cannot be determined.

Loosened team create permissions so user team create games can add groups that they are not a part of with the play permission and group team create games can add users that are not part of their group with the play permission

Terrain height based blending for pc and mac.

Introduced new API for catching asset fetch failures and suppressed existing failures so they no longer overload the output widget.

Deprecated Animator proxy APIs on Humanoid and AnimationController. Animator should be referenced directly instead.

The other APIs risk accidentally creating a de-synchronized local-only animator if called too early on the client. Animators should be explicitly created at edit time or on the server first, with the client waiting for the server created Animator.

Luau will now emit a type error in some cases if a function can exit without returning any values.

Change hotkey of toggle comment from "Ctrl+shift+c" to "ctrl+/"

settings().Studio.Theme:GetPath API has been marked as deprecated.