OpenImageIO v3.0.7.0

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

OpenImageIO v3.0.6.1

This is just a single bug fix for a possible downstream compatibility fix we introduced. If you aren't encountering the problem, you don't need to rush to upgrade.

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

OpenImageIO v3.0.6.0

Release 3.0.6.0 (May 1, 2025) -- compared to 3.0.5.0

• oiiotool: Add --text modifiers measure= and render= #4681
• python: Fix handle leak #4685
• bmp: Correct the type for BMP x/y density #4695 (by Campbell Barton)
• dpx: Specify the units for DPX scanned size #4694 (by Campbell Barton)
• sgi: Fix valid_file to properly swap bytes on little-endian platforms #4697 (by Jesse Yurkovich)
• build: Fix new dcmtk 3.6.9 vs C++ warning #4698
• build: Address Robin-map vs CMake 4.0 compatibility #4701
• build: Fix broken OIIO_SITE customization #4709
• build: Address compiler warnings in simd.h #4724
• build/windows: Clean up Windows compilation warnings #4706
• build/windows: Include Windows version information on produced binaries #4696 (by Jesse Yurkovich)
• ci: Move away from soon-to-be-deprecated ubuntu-20.04 GHA runner #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
• 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 #4674 #4676
• oiiotool: Fix invalid loop bound when appending mipmap textures using oiiotool #4671 (by Basile Fraboni)
• png: Increase allowed width/height limit #4655 (by Jesse Yurkovich)
• psd: Improved tag recognition in psd files #4663 (by Lydia Zheng)
• tiff: The default value for bitspersample should be 1 #4670 (by vernalchen)
• int: Switch to spans for some exif manipulation, fixing warnings #4689
• span.h: OIIO::span improvements #4667
• build: Better disabling of work when USE_PYTHON=0 #4657
• build: Improve OpenJpeg version detection. #4665 (by jreichel-nvidia)
• build: Bump auto-build libdeflate to 1.23 to avoid AVX512 not available errors #4679 (by LI JI)
• build: Cmake 4.0 compatibility #4686 #4688
• ci: Fix wheel building on Mac #4668 #4675
• ci: Update libPNG address and version for ci & autobuild #4659

OpenImageIO v3.0.4.0

Release 3.0.4.0 (Mar 2, 2025) -- compared to 3.0.3.0

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

v3.0.3.1

The release 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.

OpenImageIO v3.0.3.0

Release 3.0.3.0 (Feb 1, 2025) -- compared to 3.0.2.0

• 🐍🎉🍾 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 (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 (by Loïc Vital)
• IBA: IBA:demosaic() adds the ability for X-Trans demosaicing #4579 (by Anton Dukhovnikov)
• IBA: fix demosaic handling of roi channels #4602 (by Anton Dukhovnikov)
• png: Alpha premultiplication adjustment and attribute #4585
• psd: Perform endian byteswap on correct buffer area for PSD RLE #4600 (by Jesse Yurkovich)
• raw: Add black level and BPS metadata #4601 (by Anton Dukhovnikov)
• python: Disable loading Python DLLs from PATH by default on Windows #4590 (by zachlewis)
• dev (span.h): Span_memcpy is a safer memcpy when you know the span boundaries #4597
• dev (filesystem.h): Filesystem::getline() #4569
• dev (paramlist.h): ParamValue as_span, as_cspan #4582
• build: Recent change broke when using non-Apple clang on Apple #4596
• build: Fix build_cmake.bash script for aarch64, bump its default version #4581
• build: Fix libraw definitions (again) #4588
• ci: Upgrade to newer actions #4570
• ci: Test and document support for WebP 1.5 and fmt 11.1 #4574
• ci: Only pass build-steps the secrets it needs #4576
• ci: Fix Windows 2019 CI -- make python version match the runner #4592
• ci: Raise 'latest' tests to use new fmt 11.1.2 #4593
• ci: Adjust some pugixml versions #4594
• ci: Allow special branch names to prune CI jobs #4604
• tests: Improve Ptex testing #4573
• tests: Better testing coverage of null image reader/writer #4578
• tests: At long last, set up a softimage reading test. #4583
• tests: Additional ref output for jpeg-corrupt test #4595
• docs: Fix typo in oiiotool's gradient fill example #4589 (by Loïc Vital)

OpenImageIO v3.0.2.0

Release 3.0.2.0 (Jan 1, 2024) -- compared to 3.0.1.0

• api: Add global attribute imageinput:strict #4560
• various formats: Detect invalid ICC profile tags #4557 #4565
• various formats: IPTC fields have length limits, protect against attributes passed that are too long to fit in them. #4568
• pnm: Handle broken pnm files with invalid resolution #4561
• pnm: Handle broken pgm having memory access error #4559
• int: Some LoggedTimer instances lacked a variable name #4571
• build: Use target_compile_options (fixes a LibRaw build issue) #4556 (by Don Olmstead)
• ci: Refactor using a single steps workflow #4545
• ci: Fixups of analysis workflow #4572
• docs: Minor fixes and typos #4564
• admin: Sign release artifacts #4580

OpenImageIO v2.5.18.0

Release 2.5.18.0 (Jan 1, 2025) -- compared to 2.5.17.0

• exr: Avoid integer overflow for large deep exr slice strides #4542
• pnm: Broken pnm files with invalid resolution #4561
• build: Use target_compile_options (fixes a LibRaw build issue) #4556 (by Don Olmstead)
• testing: Add new ref output for libheif updates #4525
• ci: Increased the macos timeout slightly to fix spurious failures #4526
• ci: Fix broken CI for ASWF 2021 and 2022 containers #4543
• docs: Clarify 'copy_image' example #4522
• docs: Update some old links to our new vanity URLs #4533

OpenImageIO v3.0.1.0

Release 3.0.1.0 (Dec 1, 2024) -- compared to 3.0.0.3

• IBA: New IBA::scale() #4541 (by Anton Dukhovnikov) (3.0.1.0)
• IBA: IBA:demosaic() add white balancing #4499 (by Anton Dukhovnikov) (3.0.1.0)
• jpeg: Support reading Ultra HDR images #4484 (by Loïc Vital) (3.0.1.0)
• jpeg: Support encoding/decoding arbitrary metadata as comments #4430 (by Lukas Stockner) (3.0.1.0)
• api: OIIO::getattribute() queries for available font families and styles #4523 (by peterhorvath111) (3.0.1.0)
• perf: IBA::unsharp_mask() speed and memory optimization #4513 (by Vlad (Kuzmin) Erium) (3.0.1.0)
• perf: oiiotool --line, --text, --point, and --box speedups #4518 (3.0.1.0)
• perf: Jpeg2000 valid_file implementation, much faster than trying to open #4548 (by Aras Pranckevičius) (3.0.1.0)
• perf: Faster utf8<->utf16 conversion on Windows #4549 (by Aras Pranckevičius) (3.0.1.0)
• fix(exr): Allow an empty "name" metadata to be read #4528 #4536 (3.0.1.0)
• fix(exr): Avoid integer overflow for large deep exr slice strides #4542 (3.0.1.0)
• fix(raw): Fix channel layout #4516 (by Anton Dukhovnikov) (3.0.1.0)
• build: Support static OCIO self-builds #4517 (by zachlewis) (3.0.1.0)
• build: Add build recipe for PNG #4423 (by zachlewis) (3.0.1.0)
• build: Add hardening options #4538 (3.0.1.0)
• ci: Increased the macos timeout slightly to fix spurious failures #4526 (3.0.1.0)
• ci: Don't rebuild docs in CI when only CMakeLists.txt changes #4539 (3.0.1.0)
• ci: Fix broken CI for ASWF 2021 and 2022 containers #4543 (3.0.1.0)
• docs: Update some old links to our new vanity URLs #4533 (3.0.1.0)
• docs: Quickstart guide #4531 (3.0.1.0)
• docs: First stab at an architecture overview #4530 (3.0.1.0)
• docs/admin: Code review guidelines and tips #4532 (3.0.1.0)
• docs/admin: Document how to make signed release tags #4529 (3.0.1.0)