(see also: v13-rc1)

v13 (2026-Feb-07)

Bug fixes

• Crash if blur-opacity goes negative. (#1493)

v13-rc1 (2025-Dec-09)

New features

• Separate the "geometry" animation trigger into "size" and "position" to allow finer-grained control. "geometry" is kept as an alias for setting both "size" and "position".
• Add a "urgent" target that can be used in rules to match urgent (according to ICCCM) windows. (#1445)
• New "shadow-color" per-window option can now be used in rules to g...

(Sorry, I shouldn't have moved the v12.4, this will not happen again. This release cycle is short to minimize the impact.)

Changes since v12.4

Bug fixes

• Fix assertion failure when running with some window managers (e.g. qtile) and no window is focused (#1384)

(Note: the v12.4 git tag has been moved at 2024-Nov-12 09:42 UTC to fix wrong version number displayed in picom --version)

Changes since v12.3

Improvements

• Better workaround for a NVIDIA qurik, fix high CPU usage when screen is off (#1265)
• Avoid using xrender convolution in all cases, should improve shadow performance for most users. (#1349)

Bug fixes

• Fix leak of s...

Changes since v12.2

Improvements

• Extend workaround for missing hardware accelerated convolution to more drivers (#1349)

Bug fixes

• Fix memory corruption that can happen when handling window property changes (#1350)
• Fix force-win-blend having no effect (#1354)
• Fix shadow being rendered incorrectly in xrender backend (#1352)