Prepare for 12.8.0 release (#1430)

Signed-off-by: Ian Chen <ichen@openrobotics.org>

CMakeLists.txt

@@ -5,7 +5,7 @@ if(COMMAND CMAKE_POLICY)
   CMAKE_POLICY(SET CMP0004 NEW)
 endif(COMMAND CMAKE_POLICY)
 
-project (sdformat12 VERSION 12.7.2)
+project (sdformat12 VERSION 12.8.0)
 
 # The protocol version has nothing to do with the package version.
 # It represents the current version of SDFormat implemented by the software

Changelog.md

@@ -1,5 +1,20 @@
 ## libsdformat 12.X
 
+### libsdformat 12.8.0 (2024-06-06)
+
+1. Add support for no gravity link
+    * [Pull request #1410](https://github.com/gazebosim/sdformat/pull/1410)
+
+1. Add bullet and torsional friction DOM
+    * [Pull request #1351](https://github.com/gazebosim/sdformat/pull/1351)
+
+1. Fix static builds and optimize test compilation
+    * [Pull request #1343](https://github.com/gazebosim/sdformat/pull/1343)
+    * [Pull request #1347](https://github.com/gazebosim/sdformat/pull/1347)
+
+1. Update github action workflows
+    * [Pull request #1345](https://github.com/gazebosim/sdformat/pull/1345)
+
 ### libsdformat 12.7.2 (2023-09-01)
 
 1. Fixed 1.9/light.sdf