Backward compatible API changes:

• Add opaque userData pointer to input access units and output frames
• Expose max reorder pics on vvdecSeqInfo

Other changes:

• Add Loongarch support through simd-everywhere
• SIMD optimizations for ARM
• Optimize scaling list dequantization
• Packed YUV output support in vvdecapp
• Add unit test framework
• Some threading and other bug fixes

• need to rebuild dependant apps to use!
  • changes the API
  • ABI incompatible with 1.x and 2.x
• conformance improvements
• film grain support
• external ARM SIMD ported from VVenC
• build improvements
• removed output upscaling from library (moved to app)

• improved error handling, including early corruption detection
• renamed parseThreads to parseDelay in the vvdec/vvdec,h interface (backwards compatible)
• fixed boundary handling when BTT is disabled
• minor internal improvements

• set correct POC for long term reference pictures
• fix bugs in simd-everywhere so we can enable AVX2 to NEON translation
• fix deadlock in thread pool and remove limitation to 64 threads
• improve power efficiency during playback by sleeping all threads
• increase default parse delay to 1.5 * num_threads to improve CPU utilization
• some smaller bugfixes and code cleanup

• Reduced padding required for RPR after the fix in 2.1.2
• Fixed armv7 build
• Simplified threading

Bugfix release:

• fixed an out-of-bound read in RPR
• improved exception handling in all external interface functions
• minor fixes

• bugfixes (skipped RASLs, releasing internal Pictures)
• clean RPR & simdFilter
• improve makefile

• initial native ARM SIMD implementation
• reworked RPL management
• finished CU=PU refactoring
• fixed affine motion clipping with sub-pictures

• initial native ARM SIMD implementation
• reworked RPL management
• finished CU=PU refactoring

• not ABI-compatible with v1.x.x, deps need recompilation
• initial error resilience
• removed vvdecapp from default installation
  • use the library through external apps, e.g. FFmpeg
• improved error and log messages
• minor efficiency improvements