v3.78.0

v3.78.0 (minor)

Changes since v3.77.0:

• [minor] Present in HDR on Windows and macOS, with half-float textures (#723) (matt-edmondson)
• Say how to cut the replacement release, since a Markdown-only commit starts no CI (Claude)
• Note how a half-failed release republishes the same version [patch] (Claude)
• Answer the three new Sonar findings on the repeated-masks fix (Claude)
• Read the bitmap Windows makes from a copied image the right way up [patch] (Claude)
• Test the image clipboard against real desktops, and stop xclip holding the app's output [patch] (Claude)

What's Changed

• Present in HDR on Windows and macOS, with half-float textures by @matt-edmondson in #723

Full Changelog: v3.77.3...v3.78.0