Update changelog

ScriptableRenderPipeline/HDRenderPipeline/CHANGELOG.md

 
 ## [Unreleased]
 ### Added
- - Planar Reflection Probe support roughness (gaussian convolution of captured probe)
- - Screen Space Refraction projection model (Proxy raycasting, HiZ raymarching)
- - Screen Space Refraction settings as volume component
- - Added buffered frame history per camera
+
- - Depth and color pyramid are properly computed and sampled when the camera renders inside a viewport of a RTHandle.
- - Forced Planar Probe update modes to (Realtime, Every Update, Mirror Camera)
- - Removed Planar Probe mirror plane position and normal fields in inspector, always display mirror plane and normal gizmos
- - Screen Space Refraction proxy model uses the proxy of the first environment light (Reflection probe/Planar probe) or the sky
- - Moved RTHandle static methods to RTHandles
- - Renamed RTHandle to RTHandleSystem.RTHandle
+
 
 ## [0.1.6] - 2018-xx-yy
 
 - Fix numerical issues in IntersectRayAABB().
 - Fix alpha blending of volumetric lighting with transparent objects.
 - Fix the near plane of the V-Buffer causing out-of-bounds look-ups in the clustered data structure.
+- Depth and color pyramid are properly computed and sampled when the camera renders inside a viewport of a RTHandle.
-### Miscellaneous improvements
+### Changed, Removals and deprecations
+- EnableShadowMask in FrameSettings (But shadowMaskSupport still disable by default)
+- Forced Planar Probe update modes to (Realtime, Every Update, Mirror Camera)
+- Removed Planar Probe mirror plane position and normal fields in inspector, always display mirror plane and normal gizmos
+- Screen Space Refraction proxy model uses the proxy of the first environment light (Reflection probe/Planar probe) or the sky
+- Moved RTHandle static methods to RTHandles
+- Renamed RTHandle to RTHandleSystem.RTHandle
+ 
+### Improvements
+- Planar Reflection Probe support roughness (gaussian convolution of captured probe)
-### Removals and deprecations
-- 
+### Features
+- Screen Space Refraction projection model (Proxy raycasting, HiZ raymarching)
+- Screen Space Refraction settings as volume component
+- Added buffered frame history per camera