This is the main new feature release for this year and is the base version for the CY2025 VFX Reference Platform (which specifies 2.4.x).
The headline feature this year is a Preview Release of ACES 2 Output Transform support. This is a work-in-progress and we anticipate that both the processing results and the API will likely change somewhat before it is finalized. Our goal is to do that by the end of the year in a 2.4.x release.
Ideally, application developers will introduce 2.4.0 into their testing programs now and then update to the latest 2.4.x release available before shipping next year.
This documentation page explains the new features in this release.
Major new features:
PR #1983, ACES 2 Output Transforms
PR #2039, Add updated CG and Studio configs for ACES 1.3
PR #1941, Builtin Transform for Apple Log
PR #1914, OCIOView: Chromaticities inspector
PR #1932, Add AVX512 accelerated LUT1D and LUT3D
PR #2029, Add new FixedFunction and Builtin Transforms
Bug fixes and minor enhancements:
PR #1988, Add NamedTransform support for ocioconvert
PR #2051, Add DCDM displays and improve HLG OOTF implementation
PR #2052, Add Wheels for Python 3.13
PR #2006, OCIOView: App mode, tests, color space menus, bug fixes
PR #1966, OCIOView: Updates & fixes
PR #1985, OCIOView: Fix color_space_to_rgb_colourspace function usage
PR #1962, Add function to check if an extension is supported by FileTransform
PR #2059, Add hasAlias method to ColorSpace and NamedTransform
PR #2038, Add bit-depth flag to ocioconvert
PR #1981, Modify half-domain LUT1D GPU shader to improve zero handling
PR #1976, Allow read and write of file rules without color space validation
PR #2026, Update supported apps info for Photoshop and After Effects
PR #2022, Add Photoshop Beta support section to documentation
PR #2025, Remove legacy Photoshop and After Effects plug-ins
PR #2062, Add Python usage example for viewing pipeline on CPU
PR #2037, Add TouchDesigner to supported apps list
PR #2024, Fix typo in documentation
PR #1989, Improve GradingPrimary documentation
PR #2020, Allow building with gcc-15
PR #2019, Harden test temp folder handling
PR #1987, Use the correct locale include for Darwin
PR #1977, TSC & Committer update, add Mark & Cuneyt, create an emeritus section
PR #1961, Replaced deprecated Carbon framework with ColorSync and CoreGraphics
PR #1960, Add ociocpuinfo utility
PR #1950, Fix CPU unit test failures on recent macOS ARM platforms
PR #2060, Update documentation for 2.4 release
Build process enhancements:
PR #2053, Add Docker images for VFX Platform 2024 to CI
PR #2058, Fix Platform Latest CI
PR #2028, Add config file to fix ReadTheDocs builds
PR #1990, Fix for GitHub Actions node.js glibc issue
PR #1986, Improve minizip-ng installer CMake
PR #1945, Various CI workflow fixes
PR #1980, Improve Windows batch files to find installed Visual Studio location
Many thanks to the following contributors:
@remia, @cozdas, @KelSolaar, @zachlewis, @michdolan, @carolalynn, @JGoldstone, @markreidvfx, @num3ric, @KevinJW, @kingsawyer, @nick-shaw, @pennelee, @meimchu, @annieln, @AlexSchwank, @amyspark, @chandyn, @heshpdx, @SlawekNowy, @shaneantrim, @alinaka, @sumana-2705, and @doug-walker
