Release Notes for 566

Improved error messages in certain cases when interpolated strings are used.

Changed RunContext read security to none so regular scripts can read it.

Script analysis now flags table.getn and table.foreach/foreachi as deprecated; use of # and for loops is recommended as a more performant alternative, but we do not plan on removing these to preserve backwards compatibility.

ScriptProfiler: node is now expanded by default.

Overhauled the Rig Builder tool with modern UI and rig options, such as skinned meshes, and updates rigs to support modern avatar features.

Adds Floor UserCFrame for VR.

Limits Toolbox convergence of Models and Packages.

Added Animator.EvaluationThrottled boolean property for checking whether an Animator is throttled in a given frame.

Adds a boiler template for BulkFaceImporterPlugin.

Updated BulkFaceImporterPlugin.

Fixes issue with gamepad selection in ScrollingFrames.

Fixed several issues with sliders, such as issues with their visibility in light theme.

Increases the size of the default SelectionImageObject so that it doesn't obscure any of the contents it's highlighting.

Fixed creating new shorelines with WriteVoxels().