Microsoft releases Windows 10 build 21382 with HDR improvements for Photoshop May 14, 2021 13:12 EDT with 6 comments Microsoft has released another weekly build of Windows 10 to Insiders enrolled in the Dev channel, this time bringing the build number up to 21382. As per usual, this build comes from the co_release branch, not the rs_prerelease branch, and it's part of a future Windows update, not the upcoming version 21H1 that's already available in the Beta and Release Preview channels. Much like other recent builds, there isn't a whole lot that's new in this release, but there is an improvement that's likely to be welcomed by creative professionals. Apps that use ICC display color profiles will now be able to use the full color gamut of HDR displays and retain color accuracy: