Release 1.8.12 (1 Jun 2018) -- compared to 1.8.11

• Build fix for 32 bit Windows -- disable SSE that was making trouble. #1933
• Improved UTF-8 filename support for OpenEXR filenames. #1941
• filesystem.h: Improve UTF-8 handling for unique_path and temp_directory functions. #1940
• Fixes to un-break the build when EMBEDPLUGINS=0. #1942
• Fix iv (especially on OSX) for various ways it has been broken since the shift to Qt5. #1946
• Improvements in finding the location of OpenJPEG with Macports. #1948
• ImageCache and TextureSystem now have close(filename) and close_all() methods, which for one file or all files will close the files and release any open file handles (also unlocking write access to those files on Windows), but without invalidating anything it knows about the ImageSpec or any pixel tiles already read from the files, as would happen with a call to the much more drastic invalidate() or invalidate_all(). #1950

Release 1.7.19 (1 Jun 2018) -- compared to 1.7.18

• Build fix for 32 bit Windows -- disable SSE that was making trouble. #1933
• Improved UTF-8 filename support for OpenEXR filenames. #1941
• filesystem.h: Improve UTF-8 handling for unique_path and temp_directory functions. #1940
• Clean up some warnings on modern Clang versions.
• Improvements in finding the location of OpenJPEG with Macports. #1948
• ImageCache and TextureSystem now have close(filename) and close_all() methods, which for one file or all files will close the files and release any open file handles (also unlocking write access to those files on Windows), but without invalidating anything it knows about the ImageSpec or any pixel tiles already read from the files, as would happen with a call to the much more drastic invalidate() or invalidate_all(). #1950