Update CHANGELOG.md

Author: keveleigh

org.mixedrealitytoolkit.input/CHANGELOG.md

@@ -9,11 +9,17 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 * Added a project validation rule to ensure the Unity XR Hands subsystem is enabled in the OpenXR settings when the corresponding MRTK subsystem is enabled. [PR #973](https://github.com/MixedRealityToolkit/MixedRealityToolkit-Unity/pull/973)
 * Added support for Unity's com.unity.cloud.gltfast and com.unity.cloud.ktx packages when loading controller models. [PR #631](https://github.com/MixedRealityToolkit/MixedRealityToolkit-Unity/pull/631)
 * Added toggle for frame rate independent smoothing in camera simulation. [PR #1011](https://github.com/MixedRealityToolkit/MixedRealityToolkit-Unity/pull/1011)
+* Added implementation for the synthesized TriggerButton, accounting for animation smoothing. [PR #1043](https://github.com/MixedRealityToolkit/MixedRealityToolkit-Unity/pull/1043)
+* Added a "squeeze" alias for the grip states, to account for broader input action mapping support. [PR #1043](https://github.com/MixedRealityToolkit/MixedRealityToolkit-Unity/pull/1043)
 
 ### Fixed
 
 * Fixed controller model fallback visualization becoming stuck visible when hands became tracked after initialization. [PR #984](https://github.com/MixedRealityToolkit/MixedRealityToolkit-Unity/pull/984)
 
+### Changed
+
+* Remapped the synthetic hands config to read the float "select value" action instead of the bool "select" action, since it's read as a float. [PR #1043](https://github.com/MixedRealityToolkit/MixedRealityToolkit-Unity/pull/1043)
+
 ## [3.2.2] - 2024-09-18
 
 ### Fixed