Here's the Readme from the build 356 install:

2. What's New in Update 2

Fixes and Improvements

• Fixed scrolling and selecting issues in the Video FX window
• Favorites icon in the Video FX window now functions and displays properly at all times
• Nested Projects no longer cause a crash when Vegas Pro is running as a trial
• Improvements to the ProRes codec
• Fixed a crash which may occur when reading some AVC media
• When the option "Show selected events" is enabled in the Speech to Text window, the list of events now properly changes when the timeline selection changes
• Projects are now properly marked as dirty (requiring a project to be saved) for all changes made in the Color Grading Panel
• The '+' button now works properly for all tabs in the Video FX window
• Fixed a crash which may occur when Vegas has focus in the color grading panel and the computer returns from an idle state
• Improvements to the dragging of timeline keyframes
• Video and Audio tabs are now in the proper order for the customize template dialog attached to WMF formats in the Render As dialog
• Improvements to selection workflow for timeline keyframes
• Thumbnail size in the Explorer window now persists between launches of the application
• ACES version labels now match throughout the application
• Media configurations can now properly be saved from the Media Properties dialog
• 3rd Party rendering options are now available as part of the common renderers
• Fixed issue with audio pops occurring during playback on stream 2 of some GH4 AVC files in MOV containers
• Fixed some drawing problems with the timeline keyframe curves
• Fixed refresh issue which occurred with autoducking envelopes when dragging events on the timeline
• Can now copy and paste keyframe points on the timeline
• Fixed some menu items in the Brazilian Portuguese version which were translated to the wrong language
• Properly display asterisks next to all parameters which have been changed in the color grading panel
• Fixed a crash on startup which occurs when the Explorer window is populating the file list
• Can properly edit the Selection Length box in the status bar below the timeline even when no selection range is made on the timeline.
• UI splitters are now consistent throughout the application
• Fixed Flickering problems which may occur when using the AI Upscale plugin
• Added warning when a FX chain contains an unsupported DXT plugin when saving an FX package
• Flicker Control plugin no longer causes a hang during timeline playback
• Update to AI Frameworks (Onnx, DirectML and OpenVino)
• Now prioritizing hardware accelerated templates in the Use Case section of the Render dialog
• Fixed issue where some panes were cut off when docked below the timeline
• LUTs are not properly being applied when the file path contains Unicode characters
• Fixed issue where specifying a white point in the Gain parameter or black point in the Lift parameter of the color grading panel produced incorrect results
• The default keyboard shortcut for Expanded Edit Mode has been removed
• HSL Curves are now work properly when applied as a Track effect
• Better handling of Autoducking analysis for Cross Fades
• Improved shortcut logic for opening and focusing dockable windows
• Fixed issue where audio is not working properly in some rare cases of strangely multiplexed transport stream files
• Fixed problem where the Windows taskbar auto-hide feature does not work when Vegas is maximized
• Video scopes now properly update after preview is changed from HDR to SDR mode
• Fixed crash which may occur when adding some media generator events to the timeline
• Improved handling for video frame thumbnails in the Explorer, Timeline and Project Media windows
• Fixed color, alignment and border problems with the UI in the Plugin Chooser window
• Fixed problem where Autoducking envelopes occasionally disappear
• Fixed problems with Smart Mask when using the high-precision model
• Better handling of allocation when buffering frames
• Fixed sizing problem when using the AI Upscale plugin with Pan/Crop
• Fixed crash which may occur when importing ProRes 422 HQ with BT.709 color metadata