Document changes and release 0.12.0-1pureos5

debian/changelog

+wlroots (0.12.0-1pureos5) byzantium; urgency=medium
+
+  * debian: Bump soname to 7c.
+    This makes sure we don't break existing installations
+  * Fix build failure with newer libav.
+    See https://bugs.debian.org/996500
+  * d/patches: xwayland: Allow to retrieve _NET_STARTUP_ID.
+    See https://source.puri.sm/Librem5/wlroots/-/merge_requests/83
+  * d/patches: xwayland: Allow to retrieve startup-id via _NET_STARTUP_INFO.
+    See https://source.puri.sm/Librem5/wlroots/-/merge_requests/86
+
+ -- Guido Günther <agx@sigxcpu.org>  Tue, 19 Oct 2021 15:34:42 +0200
+
 wlroots (0.12.0-1pureos4) byzantium; urgency=medium
 
   * [6f1ab78] Revert "d/patches: xwayland: Allow to retrieve _NET_STARTUP_ID"