FFmpeg Version History — What Changed from 6.0 to 8.1

FFmpeg 6.0 "Heaviside" (2023.02)

The version that kicked off the biggest internal refactoring in decades. Based on Meta's internal fork design for multi-lane parallel encoding, a fundamental threading model redesign began.

Key changes:

• Multithreading scheduler overhaul begins — foundation for parallel encoder execution

• RISC-V assembly optimizations

• VAAPI AV1 encoding support

• Radiance HDR image decoding

• Large-scale deprecation cleanup

This is where FFmpeg's internals started adapting to modern multi-core CPUs.

FFmpeg 6.1 "Heaviside" (2023.11)

Midpoint of the threading refactoring started in 6.0.

• VVC (H.266) decoder — next-gen video codec

• NVIDIA NVENC AV1 encoding

• Vulkan decoding infrastructure groundwork

• Various filter improvements

FFmpeg 7.0 "Dijkstra" (2024.04)

The version that enabled in-loop decoding. The key to Meta's real-time quality metrics for livestreaming.

Key changes:

• In-loop decoding — decode encoder output immediately for original comparison. Real-time PSNR/SSIM/VMAF calculation

• Vulkan-based video decoding (H.264, HEVC)

• IAMF (Immersive Audio Model and Formats) support

• Multi-threaded demuxing

• CLI output format improvements

FFlabs and VideoLAN contributions fully eliminated Meta's fork dependency for in-loop decoding.

FFmpeg 7.1 "Péter" (2024.09)

• Major VVC decoder performance improvements

• Vulkan HEVC/AV1 decoding

• QSV (Intel) VVC decoding

• FFmpeg CLI threading stability improvements

FFmpeg 8.0 "Edvard" (2025.03)

Multithreading refactoring completed. The culmination of 3 years of work started in 6.0.

Key changes:

• Parallel encoding threading complete — all encoder instances run in parallel. Based on Meta fork design

• Vulkan video encoding (H.264, HEVC)

• Full HDR → SDR color mapping support

• Mass deprecated API removal

• Large-scale internal code cleanup

Recorded as the most complex FFmpeg refactoring in decades. Delivers more efficient multi-core encoding to all FFmpeg users.

FFmpeg 8.1 "Hoare" (2025.03)

Minor release right after 8.0. Adds new features and hardware support.

New decoders/formats:

• xHE-AAC Mps212 decoding (experimental)

• MPEG-H 3D Audio decoding (libmpeghdec)

• EXIF metadata parsing

• LCEVC metadata handling

• JPEG-XS codec — low-latency visually/mathematically lossless compression

• hxvs demuxer

Hardware acceleration:

• Vulkan — ProRes encoding/decoding, DPX decoding. GLSL runtime dependency removed for faster init

• D3D12 — H.264/AV1 encoding + scale, mestimate, deinterlace filters

• Rockchip — H.264/HEVC hardware encoding (rkmpp-based)

Other:

• IAMF Ambisonic Audio Elements (Projection mode)

• drawvg, vpp_amf filters

• swscale rewrite preparation

• Windows.Graphics.Capture screen capture

Version Timeline Summary

6.0 through 8.0 is one continuous arc:

Meta-inspired multithreading refactoring started in 6.0, in-loop decoding activated in 7.0, parallel encoding completed in 8.0. This 3-year effort brought FFmpeg into the modern multi-core era.

Simultaneously, Vulkan hardware codecs expanded with each version, greatly broadening GPU acceleration options beyond NVIDIA/Intel/AMD-specific APIs.