* Type and format specifiers are no longer used in rules. These specifiers are what you put after the colon (':') in rules, e.g. the `:32c` in `"_GTK_FRAME_EXTENTS@:32c"`. Now this information is ignored and the property is matched regardless of format or type.
* picom now uses dithering to prevent banding. Banding is most notable when using a strong background blur. (#952)
* Frame pacing. picom uses present feedback information to schedule new frames when it makes sense to do so. This improves latency, and replaces the `glFlush` and `GL_MaxFramesAllowed=1` hacks we used to do for NVIDIA. (#968 #1156)
* Some missing features have been implemented for the EGL backend (#1004 #1007)
## Bug fixes
* Many memory/resource leak fixes thanks to @absolutelynothelix . (#977 #978#979#980#982#985#992#1009#1022)
* Fix tiling of wallpaper. (#1002)
* Fix some blur artifacts (#1095)
* Fix shadow color for transparent shadows (#1124)
* Don't spam logs when another compositor is running (#1104)
* Fix rounded corners showing as black with the xrender backend (#1003)