Happy March! OpenImageIO v2.3.13.0 has been tagged, and the "release" branch 
marker moved to that point. This is the latest supported production release, 
and is fully back-compatible with API, ABI, and linkage versus earlier 2.3.x 
releases. Release notes are below:


Release 2.3.13 (1 Mar 2022) -- compared to 2.3.12
--------------------------------------------------
* Filesystm::searchpath_split better handling of empty paths. #3306
* New Strutil::isspace() is an isspace replacement that is safe for char
  values that are < 0. #3310
* Expose the Strutil::utf8_to_utf16() and utf16_to_utf8() utilities on
  non-Windows platforms (and also modernize their internals). #3307
* For the most important ImageInput, ImageOutput, and ImageBuf methods that
  take a filename, add new flavors that can accept a `wstring` as the
  filename. #3312 #3318
* PPM: properly report color space as Rec709 (as dictated by PPM spec). #3321
* PNG: more robust reporting of color space as sRGB in the absence of header
  fields contradicting this. #3321
* strutil.h: Split the including of fmt.h and some related logic into a
  separate detail/fmt.h. This is still included by strutil.h, so users
  should not notice any change. #3327
* Targa: Fix parsing of TGA 2.0 extension area. #3323
* Support building against FFmpeg 5.0. #3282
* oiiotool --pixelaspect : fix setting of "PixelAspectRatio", "XResolution",
  and "YResolution" attributes in the output file (were not set properly
  before). #3340


--
Larry Gritz
l...@larrygritz.com




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