CHANGELOG.md: reflect the release of v12-rc1

Signed-off-by: Yuxuan Shui <[email protected]>

CHANGELOG.md

@@ -1,8 +1,9 @@
-# Unreleased
+# v12-rc1 (2024-Aug-12)
 
 ## New features
 
-* Universal window rules (#1284). One option to rule them all! Added new configuration option `rules` to replace all existing rule options, and to provide more flexibility on top of that. See [picom(1)](https://picom.app/#_window_rules) for more details.
+* Animations! Yes, now picom officially supports animations. For examples, and information on how to configure it, please go to our [documentation site](https://picom.app/#_animations). There are some video clips in #1253 as well. (#1220 #1253 #1303 #1305 #1308 #1310)
+* Universal window rules (#1284). One option to rule them all! Added new configuration option `rules` to replace all existing rule options, and to provide more flexibility on top of that. See [picom(1)](https://picom.app/#_window_rules) for more details. This can be used to configure per-window animations.
 * `@include` directives in config file now also search in `$XDG_CONFIG_HOME/picom/include` and `$XDG_CONFIG_DIRS/picom/include`, in addition to relative to the config file's parent directory.
 * Allow `corner-radius-rules` to override `corner-radius = 0`. Previously setting corner radius to 0 globally disables rounded corners. (#1170)
 * New `picom-inspect` tool, which lets you test out your picom rules. `man picom-inspect(1)` for more details. Sample output: