v3.0.8.1
Release 3.0.8.1 (Jul 5, 2025) -- compared to 3.0.8.0
-----------------------------------------------------
  - *build(heif)*: Fixes to build against libheif 1.20 [#4822](#4822) (by Rui Chen)
  - *build*: Wheel upload_pypi step should only run from main repo [#4820](#4820)
  - *ci*: Bump 'latest' test versions [#4819](#4819)

Release 2.5.19.0 (July 5 2025) -- compared to 2.5.18.0
--------------------------------------------------------
- *build*: Fixes to build against libheif 1.20 [#4822](#4822) (by Rui Chen)
- *tests*: Fix typo in oiiotool's gradient fill argument test [#4589](#4589) (by Loïc Vital)
- *tests*: Additional ref output for jpeg-corrupt test [#4595](#4595)
- *ci*: Upgrade to newer actions (based on #4570)
- *ci*: Remove tests on Windows-2019 GitHub runner [#4793](#4793)
- *ci*: Try to unbreak CI for python2 with changed apt package names

Release 3.0.8.0 (Jul 1, 2025) -- compared to 3.0.7.0
-----------------------------------------------------
  - *oiiotool*: New expression pseudo-metadata term: SUBIMAGES [#4804](#4804)
  - *oiiotool*: Fixes to --missingfile behavior [#4803](#4803)
  - *iv*: Area probe [#4767](#4767) (by Danielle Imogu)
  - *python*: Python ImageBuf.init_spec did not return correct value [#4805](#4805)
  - *fix*: ImageOutput::check_open logic was flawed [#4779](#4779)
  - *int(iv)*: Add raw string syntax modifier for VSCode and Cursor to understand its glsl [#4796](#4796) (by Aleksandr Motsjonov)
  - *int(iv)*: Use R"()" syntax for glsl shader strings for better readability [#4795](#4795) (by Aleksandr Motsjonov)
  - *exr*: Not honoring 'missingcolor' for scanline files [#4757](#4757)
  - *build*: Add arm_neon.h include on Windows ARM64 with clang-cl [#4691](#4691) (by Anthony Roberts)
  - *build*: Adjust pystring finding [#4816](#4816)
  - *build(jxl)*: Use correct cmake variables for the include directories [#4810](#4810) [#4813](#4813)  (by Jesse Yurkovich)
  - *tests*: Remove old test reference output we no longer need [#4817](#4817)
  - *ci*: Remove tests on Windows-2019 GitHub runner [#4793](#4793)
  - *ci*: Various ccache save/restore improvements for CI runs [#4797](#4797)
  - *ci*: Simplify gh-win-installdeps, no more vcpkg [#4809](#4809)
  - *admin*: Remove stale intake documents [#4815](#4815)

Release 3.0.7.0 (Jun 1, 2025) -- compared to 3.0.6.1
-----------------------------------------------------
  - *oiiotool*: `--eraseattrib` new modifier `:fromfile=1` reads from a file
    to get a list of patterns to specify the attributes to erase. [#4763](#4763) (by Lydia Zheng)
  - *oiiotool*: Added `--create-dir` flag to create directories needed by `-o`
    if they doesn't already exist [#4762](#4762) (by Dharshan Vishwanatha)
  - *oiiotool*: --eraseattrib:fromfile=1 [#4763](#4763) (by Lydia Zheng)
  - *oiiotool*: Added create-dir cmd arg to create dir if it doesn't exist [#4762](#4762) (by Dharshan Vishwanatha)
  - *oiiotool*: -i:native=1, fix --native behavior, fix convert datatype [#4708](#4708)
  - *iv*: Fix crash on .DS_Store; fix uppercase extensions [#4764](#4764) (by Anton Dukhovnikov)
  - *iv*: Do not resize on open and other zoom fixes [#4766](#4766) (by Aleksandr Motsjonov)
  - *iv*: Bug fix for iv window losing focus on mac on startup [#4773](#4773) (by Aleksandr Motsjonov)
  - *iv*: Implement files drag and drop into an iv window [#4774](#4774) (by Aleksandr Motsjonov)
  - *iv*: Use screen pixel ratio to render sharp text in pixel view tool [#4768](#4768) (by Aleksandr Motsjonov)
  - *python*: Add python stub files [#4692](#4692) [#4754](#4754) (by Chad Dombrova)
  - *python*: ImageBuf `_repr_png_` method added, which allows use of
    ImageBuf in [Jupyter Notebooks](https://jupyter.org/) as a displayable object. [#4753](#4753) (by Oktay Comu)
  - *exr*: Did not properly allocate 'missingcolor' vector [#4751](#4751)
  - *exr*: Add `htj2k` as a compression option for OpenEXR. Only works with  OpenEXR 3.4 or higher (or in-progress OpenEXR main). [#4785](#4785) (by Li Ji)
  - *iff*: Improved IFF support reading and writing z buffers [#4673](#4673) (by Mikael Sundell)
  - *webp*: Respect the `oiio:UnassociatedAlpha` attribute [#4770](#4770) (by Jesse Yurkovich)
  - *webp*: Allow finer grained control over WEBP compression settings [#4772](#4772) (by Jesse Yurkovich)
  - *flx/python*: IBA.demosaic had GIL release in wrong spot [#4777](#4777)
  - *fix*: ImageInput/ImageOutput did not set per-file threads correctly [#4750](#4750)
  - *fix*: Address safety warnings in pvt::append_tiff_dir_entry [#4737](#4737)
  - *build*: Fix fmt throwing behavior warnings [#4730](#4730)
  - *build*: Detect libultrahdr version and enforce minimum of 1.3 [#4729](#4729)
  - *build*: Fix failed test with old fmt [#4758](#4758)
  - *ci*: Save time by not checking out entire project history [#4731](#4731)
  - *ci*: New testing variants for VFX Platform 2025, Windows 2025 [#4744](#4744), Linux ARM [#4749](#4749)
  - *ci*: Update ref output to compensate for GitHub windows drive changes [#4761](#4761)
  - *ci*: Pkg config libdir fix [#4775](#4775) (by Scott Wilson)
  - *ci*: For docs workflow, lock down versions and speed up [#4646](#4646)
  - *ci*: Improved clang-format CI task [#4647](#4647)
  - *ci*: Add facility for benchmarking as part of CI [#4745](#4745)
  - *ci*: Update ref image for slightly changed freetype accents [#4765](#4765)
  - *docs*: Online docs improvements, mostly formatting (#4736, #4743)
  - *docs*: Update Windows build instructions to rely on deps auto-build [#4769](#4769)

v3.0.6.1
Release 3.0.6.1 (May 2, 2025) -- compared to 3.0.6.0
-----------------------------------------------------
  - *fix*: Restore OIIO_AVX512ER_ENABLED preprocessor symbol. Its absence could break backwards source compatibility if anyone was using it, even though it was useless and broken. Where compatibility goes, better safe than sorry. [#4735](#4735)

v3.0.6.0
Release 3.0.6.0 (May 1, 2025) -- compared to 3.0.5.0
-----------------------------------------------------
  - *oiiotool*: Add `--render_text` modifiers `measure=` and `render=` [#4681](#4681)
  - *python*: Fix handle leak [#4685](#4685)
  - *bmp*: Correct the type for BMP x/y density [#4695](#4695) (by Campbell Barton)
  - *dpx*: Specify the units for DPX scanned size [#4694](#4694) (by Campbell Barton)
  - *sgi*: Fix valid_file to properly swap bytes on little-endian platforms [#4697](#4697) (by Jesse Yurkovich)
  - *build*: Fix new dcmtk 3.6.9 vs C++ warning [#4698](#4698)
  - *build*: Address Robin-map vs CMake 4.0 compatibility [#4701](#4701)
  - *build*: Fix broken OIIO_SITE customization [#4709](#4709)
  - *build*: Address compiler warnings in simd.h [#4724](#4724)
  - *build/windows*: Clean up Windows compilation warnings [#4706](#4706)
  - *build/windows*: Include Windows version information on produced binaries [#4696](#4696) (by Jesse Yurkovich)
  - *ci*: Move away from soon-to-be-deprecated ubuntu-20.04 GHA runner [#4636](#4636)

OpenImageIO v3.0.5.0
Release 3.0.5.0 (Apr 2, 2025) -- compared to 3.0.4.0
-----------------------------------------------------
  - *ImageBuf*: `ImageBuf::merge_metadata()` merges one IB's metadata into another's without deleting the metadata already present. It can also filter which metadata are copied using a regex. [#4672](#4672)
  - *oiiotool*: `--pastemeta` now takes additional modifiers that allows options for merging rather than rewriting, and is able to copy only a subset of the metadata specified by a regex. [#4672](#4672) [#4674](#4674) [#4676](#4676)
  - *oiiotool*: Fix invalid loop bound when appending mipmap textures using oiiotool [#4671](#4671) (by Basile Fraboni)
  - *png*: Increase allowed width/height limit [#4655](#4655) (by Jesse Yurkovich)
  - *psd*: Improved tag recognition in psd files [#4663](#4663) (by Lydia Zheng)
  - *tiff*: The default value for bitspersample should be 1 [#4670](#4670) (by vernalchen)
  - *int*: Switch to spans for some exif manipulation, fixing warnings [#4689](#4689)
  - *span.h*: OIIO::span improvements [#4667](#4667)
  - *build*: Better disabling of work when USE_PYTHON=0 [#4657](#4657)
  - *build*: Improve OpenJpeg version detection. [#4665](#4665) (by jreichel-nvidia)
  - *build*: Bump auto-build libdeflate to 1.23 to avoid AVX512 not available errors [#4679](#4679) (by LI JI)
  - *build*: Cmake 4.0 compatibility [#4686](#4686) [#4688](#4688)
  - *ci*: Fix wheel building on Mac [#4668](#4668) [#4675](#4675)
  - *ci*: Update libPNG address and version for ci & autobuild [#4659](#4659)

Release 3.0.4.0 (Mar 2, 2025) -- compared to 3.0.3.0
-----------------------------------------------------
  - *oiiotool*: Oiiotool new expression eval tokens IS_CONSTANT, IS_BLACK [#4610](#4610) (by Lydia Zheng)
  - *oiiotool*: Better handling of wildcards that match no files [#4627](#4627)
  - *ImageBuf*: IB::pixeltype() did not always return the right value [#4614](#4614)
  - *ImageBuf*: Fix bug in ImageBuf construction from ptr + neg strides [#4630](#4630)
  - *ICC*: ICC profile recognition and robustness improvements, especially for PSD [#4644](#4644)
  - *exr*: Fill in OpenEXR lineOrder attribute when reading [#4628](#4628) (by vernalchen)
  - *ico*: More robust to corrupted ICO files [#4625](#4625)
  - *rla*: More robust to corrupted RLA files that could overrun buffers [#4624](#4624)
  - *span.h*: Eliminate needless definitions of `std::size(span)` that were triggering strange behavior on recent MSVS compiler versions. [#4652](#4652)
  - *build*: Fix recently broken rpath setting [#4618](#4618)
  - *build/python wheels*: Ensure python-based builds use maj.min.patch SO versioning [#4634](#4634) (by zachlewis)
  - *build/python wheels*: Fix recently broken rpath to restore python wheel building [#4633](#4633)
  - *ci*: Run wheel workflow on certain pushes [#4617](#4617)
  - *docs*: Argparse documentation/comments typos [#4612](#4612)
  - *admin*: Document Python Wheel completed in roadmap [#4620](#4620) (by Todica Ionut)
  - *admin*: Add ".vs" to .gitignore [#4645](#4645)
  - *admin*: Set up .gitattributes file and ensure it properly categorizes certain files for GitHub's language analysis statistics. [#4648](#4648)

v3.0.3.1
The code is identical to v3.0.3.0, but some build issues were fixed to
allow proper build and upload of the Python wheels to PyPI for the
Linux ARM variants.

v3.0.3.0
- 🐍🎉🍾 **Python wheels workflow and build backend** -- beginning with
  OpenImageIO 3.0.3.0, releases should automatically trigger building of
  Python wheels and upload to PyPI so that you can do a single-command `pip3
  install openimageio` on any of Linux, Mac, or Windows, and get the Python
  bindings, the OpenImageIO libraries, and a working oiiotool, without
  having to build from source yourself.
  [#4428](#4428) (by zachlewis)
- *oiiotool*: `oiiotool --layersplit`, new command to split multi-layer
  OpenEXR files (using the usual channel naming convention to delineate
  "layers") into separate images [#4591](#4591) (by Loïc Vital)
- *IBA*: IBA:demosaic() adds the ability for X-Trans demosaicing [#4579](#4579) (by Anton Dukhovnikov)
- *IBA*: fix demosaic handling of roi channels [#4602](#4602) (by Anton Dukhovnikov)
- *png*: Alpha premultiplication adjustment and attribute [#4585](#4585)
- *psd*: Perform endian byteswap on correct buffer area for PSD RLE [#4600](#4600) (by Jesse Yurkovich)
- *raw*: Add black level and BPS metadata [#4601](#4601) (by Anton Dukhovnikov)
- *python*: Disable loading Python DLLs from PATH by default on Windows [#4590](#4590) (by zachlewis)
- *dev (span.h)*: Span_memcpy is a safer memcpy when you know the span boundaries [#4597](#4597)
- *dev (filesystem.h)*: Filesystem::getline() [#4569](#4569)
- *dev (paramlist.h)*: ParamValue as_span, as_cspan [#4582](#4582)
- *build*: Recent change broke when using non-Apple clang on Apple [#4596](#4596)
- *build*: Fix build_cmake.bash script for aarch64, bump its default version [#4581](#4581)
- *build*: Fix libraw definitions (again) [#4588](#4588)
- *ci*: Upgrade to newer actions [#4570](#4570)
- *ci*: Test and document support for WebP 1.5 and fmt 11.1 [#4574](#4574)
- *ci*: Only pass build-steps the secrets it needs [#4576](#4576)
- *ci*: Fix Windows 2019 CI -- make python version match the runner [#4592](#4592)
- *ci*: Raise 'latest' tests to use new fmt 11.1.2 [#4593](#4593)
- *ci*: Adjust some pugixml versions [#4594](#4594)
- *ci*: Allow special branch names to prune CI jobs [#4604](#4604)
- *tests*: Improve Ptex testing [#4573](#4573)
- *tests*: Better testing coverage of null image reader/writer [#4578](#4578)
- *tests*: At long last, set up a softimage reading test. [#4583](#4583)
- *tests*: Additional ref output for jpeg-corrupt test [#4595](#4595)
- *docs*: Fix typo in oiiotool's gradient fill example [#4589](#4589) (by Loïc Vital)