Changelog for libBox2D2_3_1-2.3.1-2.2.x86_64.rpm :

* Fri Aug 12 2016 jengelhAATTinai.de- Replace strange buildroot definition
* Fri Jul 22 2016 jengelhAATTinai.de- RPM group correction
* Thu Jul 21 2016 dap.darknessAATTgmail.com- Fixed Factory review (License.txt is not packaged).- Minor spec clean-up (may fix SLE build).- Cmake release with debug info build type.
* Sun Jul 17 2016 brunoAATTioda-net.ch- Fixed tar.gz by osc service localrun download_files- Fixed version in baselibs.conf (for 32bits packages)- Added baselibs.conf as source1
* Wed Dec 16 2015 rpmAATTfthiessen.de- Update to new upstream version 2.3.1:
* Polygon creation now computes the convex hull.
* The convex hull code will merge vertices closer than dm_linearSlop.
* Vertices no longer need to be ordered.
* New GUI
* Various other bugfixes- removed upstream patched Box2D_v2.2.1-lib64.patch- replaced Box2D_v2.2.1-version.patch with Box2D-fix-version-2.3.1.patch
* Tue Jun 12 2012 adamAATTmizerski.pl- new package