chore: update changelog

CHANGELOG.md

@@ -9,6 +9,7 @@ CasparCG 2.4.0 (Unreleased)
 * Producers to be run at startup can be defined in casparcg.config
 * Support 8K frames
 * Remove undocumented CII and CLK protocol implementations
+* Config parameter can be an absolute system path, not just relative to the working directory
 * AMCP: Add CLEAR ALL command
 * AMCP: Command batching syntax
 * AMCP: LOAD/LOADBG/PLAY commands accept a CLEAR_ON_404 parameter, to instruct the layer to be cleared when the requested file was not found
@@ -21,11 +22,15 @@ CasparCG 2.4.0 (Unreleased)
 * Build: Replace nuget and locally committed dependencies with direct http downloads
 * Linux: Support setting thread priorities
 * Linux: Initial ARM64 compatibility
+* Linux: Rework build to always use system boost
+* Linux: Rework build process to better support being build as a system package
 * Logging: add config option to disable logging to file and to disable column alignment 
 * Transitions: Support additional audio fade properties for STING transition
 ##### Fixes
+* Crash upon exiting if HTML producer was running
 * AMCP: Ensure all consumers and producers are reported in `INFO` commands
 * AMCP: Deferred mixer operations were not being cleared after being applied
+* AMCP: `LOAD` command would show a frame or two of black while new producer was loading
 * OpenGL: Fix support for recent Linux drivers
 * Linux: Fix endless looping on stdin
 * Route: Fix error when clearing layer
@@ -46,7 +51,11 @@ CasparCG 2.4.0 (Unreleased)
 * Decklink: Log spamming when using some input formats
 * FFmpeg: Prevent loading unreadable files
 * FFmpeg: Unable to play files with unicode filenames
+* FFmpeg: Don't lowercase filter parameters
 * HTML: media-stream permission denied
+* HTML: Expose angle backend config field, the best backend varies depending on the templates and machine
+* HTML: Crash when multiple iframes were loaded within a renderer
+* Image: Improve file loading algorithm to match the case insensitive and absolute path support already used by ffmpeg
 
 ### Consumers
 ##### Improvements