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lgritz merged 1 commit into from
Feb 1, 2026
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CHANGES updates #5028

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63 changes: 63 additions & 0 deletions CHANGES.md
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Expand Up @@ -6,8 +6,11 @@ Release 3.2 (target: Sept 2026?) -- compared to 3.1
* *New image file format support:*
* *oiiotool new features and major improvements*:
* *Command line utilities*:
- *iv*: Flip, rotate and save image [#5003](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5003) (by Valery Angelique) (3.2.0.0)
* *ImageBuf/ImageBufAlgo*:
- *ImageBuf*: IB::localpixels_as_[writable_]byte_image_span [#5011](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5011) (3.2.0.0, 3.1.10.0)
* *ImageCache/TextureSystem*:
- *api/TS*: `IBA::make_texture()` now honors "maketx:threads" hint [#5014](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5014) (3.2.0.0, 3.1.10.0)
* New global attribute queries via OIIO::getattribute():
* Miscellaneous API changes:
- *api*: Versioned namespace to preserve ABI compatibility between minor releases [#4869](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4869) (3.2.0.0)
Expand All @@ -17,12 +20,20 @@ Release 3.2 (target: Sept 2026?) -- compared to 3.1
- *openexr*: Write OpenEXR colorInteropID metadata based on oiio:ColorSpace [#4967](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4967) (by Brecht Van Lommel) (3.0.14.0, 3.2.0.0)
- *jpeg-xl*: CICP read and write support for JPEG-XL [#4968](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4968) (by Brecht Van Lommel) (3.2.0.0, 3.1.9.0)
- *jpeg-xl*: ICC read and write for JPEG-XL files (issue 4649) [#4905](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4905) (by shanesmith-dwa) (3.0.14.0, 3.2.0.0)
* Other notable new feature:
- *heif*: Add IOProxy support for both input and output [#5017](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5017) (by Brecht Van Lommel) (3.2.0.0, 3.1.10.0)

### 🚀 Performance improvements
- *perf*: `ImageBufAlgo::resample` and `oiiotool --resample` improvements to speed up 20x or more [#4993](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4993) (3.2.0.0, 3.1.10.0)

### 🐛 Fixes and feature enhancements
- *IBA*: IBA::compare_Yee() accessed the wrong channel [#4976](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4976) (by Pavan Madduri) (3.2.0.0)
- *exif*: Support EXIF 3.0 tags [#4961](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4961) (3.2.0.0)
- *imagebuf*: Fix set_pixels bug, didn't consider roi = All [#4949](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4949) (3.2.0.0)
- *ffmpeg*: 10 bit video had wrong green channel [#4935](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4935) (by Brecht Van Lommel) (3.2.0.0, 3.1.7.0)
- *heif*: Add IOProxy support for both input and output [#5017](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5017) (by Brecht Van Lommel) (3.2.0.0, 3.1.10.0)
- *heif*: Fix: Could not output AVIF when libheif has no HEVC support [#5013](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5013) (by Brecht Van Lommel) (3.2.0.0, 3.1.10.0)
- *heif*: Fix error saving multiple images with different bit depths [#5018](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5018) (by Brecht Van Lommel) (3.2.0.0, 3.1.10.0)
- *iff*: Handle non-zero origin, protect against buffer overflows [#4925](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4925) (3.2.0.0, 3.1.7.0)
- *jpeg*: Fix wrong pointers/crashing when decoding CMYK jpeg files [#4963](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4963) (3.2.0.0)
- *jpeg-2000*: Type warning in assertion in jpeg2000output.cpp [#4952](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4952) (3.2.0.0)
Expand All @@ -37,34 +48,76 @@ Release 3.2 (target: Sept 2026?) -- compared to 3.1
- *png*: We were not correctly suppressing hint metadata [#4983](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4983) (3.2.0.0)
- *sgi*: Implement RLE encoding support for output [#4990](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4990) (by Jesse Yurkovich) (3.2.0.0)
- *webp*: Allow out-of-order scanlines when writing webp [#4973](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4973) (by Pavan Madduri) (3.2.0.0)
- *webp*: Use correct resolution limits for WebpOutput::open [#5016](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5016) (by Jesse Yurkovich) (3.2.0.0, 3.1.10.0)
- *webp*: Fix missing oiio:UnassociatedAlpha on input [#5020](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5020) (by Brecht Van Lommel) (3.2.0.0, 3.1.10.0)
### 🔧 Internals and developer goodies
- *fix*: Several bug fixes related to internal use of image_span [#5004](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5004) (3.2.0.0, 3.1.10.0)
- *filesystem.h*: Speedup to detect the existence of files on Windows [#4977](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4977) (by JacksonSun-adsk) (3.2.0.0)
### 🏗 Build/test/CI and platform ports
* OIIO's CMake build system and scripts:
- *build*: Allow auto-build of just required packages by setting `OpenImageIO_BUILD_MISSING_DEPS` to `required`. [#4927](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4927) (3.2.0.0, 3.1.7.0)
- *build*: Make dependency report more clear about what was required [#4929](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4929) (3.2.0.0, 3.1.7.0)
- *build*: Fix HARDENING build options [#4996](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4996) (3.2.0.0)
- *build*: Fully disable tests when their required dependencies are missing [#5005](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5005) (3.2.0.0, 3.1.10.0)
* Dependency and platform support:
- *deps*: Additional auto-build capabilities for dependencies that are not found: GIF library [#4921](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4921) (by Valery Angelique), OpenJPEG [#4911](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4911) (by Danny Greenstein) (3.2.0.0, 3.1.7.0)
- *deps*: Disable LERC in libTIFF local build script [#4957](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4957) (by LI JI) (3.2.0.0, 3.1.8.0)
- *deps*: Test against libraw 0.21.5 [#4988](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4988) (3.2.0.0, 3.1.9.0)
- *build/platforms*: Fix building on OpenBSD [#5001](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5001) (by Brad Smith) (3.2.0.0, 3.1.10.0)
- *build/deps*: Bump OCIO auto-build ver to 2.5.1 [#5022](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5022) (by Zach Lewis) (3.2.0.0, 3.1.10.0)
- *build/deps*: Use libheif exported config if available [#5012](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5012) (3.2.0.0, 3.1.10.0)
- *build/deps*: Libheif 1.21 support [#4992](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4992) (3.2.0.0, 3.1.10.0)
* Testing and Continuous integration (CI) systems:
- *tests*: Image_span_test reduce benchmark load for debug and CI renders [#4951](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4951) (3.2.0.0, 3.1.8.0)
- *tests*: Add new ref image for jpeg test [#5007](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5007) (3.2.0.0, 3.1.10.0)
- *ci*: Python wheel building improvements: use ccache [#4924](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4924) (by Larry Gritz), unbreak wheel release + other enhancements pt 1 [#4937](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4937) (by Zach Lewis) (3.2.0.0, 3.1.7.0)
- *ci*: Simplify ci workflow by using build-steps for old aswf containers, too [#4932](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4932) (3.2.0.0, 3.1.7.0)
- *ci*: We were not correctly setting fmt version from job options [#4939](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4939) (3.2.0.0, 3.1.7.0)
- *ci*: Emergency fix change deprecated sonarqube action [#4969](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4969) (3.2.0.0)
- *ci*: Try python 3.13 to fix Mac breakage on CI [#4970](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4970) (3.2.0.0)
- *ci*: Freetype adjustments [#4999](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4999) (3.2.0.0)
- *ci*: Speed up macos15 intel variant by not installing Qt [#4998](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4998) (3.2.0.0, 3.1.10.0)
- *ci*: Don't run non-wheel workflows when only pyproject.toml changes [#4997](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4997) (3.2.0.0, 3.1.10.0)
- *ci*: Windows runners switched which python version they had [#5010](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5010) (3.2.0.0, 3.1.10.0)
- *ci*: Test against libraw 0.22 for 'latest' test variants [#5009](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5009) (3.2.0.0, 3.1.10.0)
- *ci*: Lock bleeding edge to pybind11 latest version [#5024](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5024) (3.2.0.0, 3.1.10.0)
### 📚 Notable documentation changes
- *docs*: Update/correct explanation of "openexr:core" attribute, and typo fixes [#4943](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4943) (3.2.0.0, 3.1.7.0)
- *docs*: Remove outdated/wrong description in INSTALL.md [#5008](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5008) (3.2.0.0)
### 🏢 Project Administration
- *admin*: Minor rewording in the issue and PR templates [#4982](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4982) (3.2.0.0)
- *admin*: Refine PR template to give more visual separation [#4995](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4995) (3.2.0.0)
### 🤝 Contributors

---
---



Release 3.1.10.0 (Feb 1, 2026) -- compared to 3.1.9.0
-----------------------------------------------------
- *perf*: `IBA::resample()` and `oiiotool --resample` improvements to speed up 20x or more [#4993](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4993)
- *ImageBuf*: IB::localpixels_as_[writable_]byte_image_span [#5011](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5011)
- ImageBufAlgo*: IBA::make_texture now honors "maketx:threads" hint [#5014](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5014)
- *heif*: Add IOProxy for input and output [#5017](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5017) (by Brecht Van Lommel)
- *heif*: Can not output AVIF when libheif has no HEVC support [#5013](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5013) (by Brecht Van Lommel)
- *heif*: Error saving multiple images with different bit depths [#5018](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5018) (by Brecht Van Lommel)
- *webp*: Use correct resolution limits for WebpOutput::open [#5016](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5016) (by Jesse Yurkovich)
- *webp*: Missing oiio:UnassociatedAlpha on input [#5020](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5020) (by Brecht Van Lommel)
- *fix*: Several bug fixes related to internal use of image_span [#5004](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5004)
- *build*: Fix building on OpenBSD [#5001](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5001) (by Brad Smith)
- *deps*: Libheif 1.21 support [#4992](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4992)
- *deps*: Bump OCIO auto-build ver to 2.5.1 [#5022](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5022) (by Zach Lewis)
- *deps*: Use libheif exported config if available [#5012](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5012)
- *tests*: Add new ref image for jpeg test [#5007](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5007)
- *tests*: Fully disable tests when their required dependencies are missing [#5005](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5005)
- *ci*: Speed up macos15 intel variant by not installing Qt [#4998](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4998)
- *ci*: Don't run non-wheel workflows when only pyproject.toml changes [#4997](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4997)
- *ci*: Windows runners switched which python version they had [#5010](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5010)
- *ci*: Test against libraw 0.22 for 'latest' test variants [#5009](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5009)
- *ci*: Lock bleeding edge to pybind11 latest version [#5024](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5024)


Release 3.1.9.0 (Jan 1, 2026) -- compared to 3.1.8.0
----------------------------------------------------
- Color management improvements:
Expand Down Expand Up @@ -444,6 +497,16 @@ asterisk) had not previously contributed to the project.
---


Release 3.0.15.0 (Feb 1, 2026) -- compared to 3.0.14.0
-------------------------------------------------------
- *heif*: Can not output AVIF when libheif has no HEVC support [#5013](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5013) (by Brecht Van Lommel)
- *heif*: Error saving multiple images with different bit depths [#5018](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5018) (by Brecht Van Lommel)
- *webp*: Use correct resolution limits for WebpOutput::open [#5016](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5016) (by Jesse Yurkovich)
- *ci*: Speed up macos15 intel variant by not installing Qt [#4998](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4998)
- *ci*: Windows runners switched which python version they had [#5010](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5010)
- *ci*: Lock bleeding edge to pybind11 latest version [#5024](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/5024)


Release 3.0.14.0 (Jan 1, 2026) -- compared to 3.0.13.0
-------------------------------------------------------
- *fix(IBA)*: IBA::compare_Yee() accessed the wrong channel [#4976](https://github.com/AcademySoftwareFoundation/OpenImageIO/pull/4976) (by Pavan Madduri)
Expand Down
3 changes: 3 additions & 0 deletions CREDITS.md
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Expand Up @@ -110,6 +110,7 @@ lg@openimageio.org
* Imarz
* Irena Damsky
* Ismael Cortes
* Jackson Sun
* Jan Hettenkofer
* Jan Honsbrok
* Jens Lindgren
Expand Down Expand Up @@ -191,6 +192,7 @@ lg@openimageio.org
* Paul Franz
* Paul Melis
* Paul Molodowitch
* Pavan Madduri
* Pavel Karneliuk
* Pete Larabell
* Peter Horvath
Expand Down Expand Up @@ -223,6 +225,7 @@ lg@openimageio.org
* Sergio Rojas
* Shane Ambler
* Shane Smith
* Shashvat K. Singh
* Simon Boorer
* Solomon Boulos
* SRHMorris
Expand Down