* Label threads with a descriptive name on supported Unixy platforms (added in v0.8.1), in trunk as of r27670.
* Add a 32bpp SSE2 palette animator. This is ~4x faster than the non-accelerated palette animator (added in v0.9.0), in trunk as of commit 17257b96.
* Increase number of available rail track types from 16 to 32 [imported](http://www.tt-forums.net/viewtopic.php?f=33&t=74365) (added in v0.13.0), this is increased to 64 rail track types in trunk as of commit bf8d7df7, (added in v0.26.0).
* Increase number of available rail track types from 16 to 32 [imported](http://www.tt-forums.net/viewtopic.php?f=33&t=74365) (added in v0.13.0), this is increased to 64 rail track types in trunk as of commit bf8d7df7, (added in v0.26.0).
* Towns build bridges over rails [imported](https://www.tt-forums.net/viewtopic.php?f=33t=76052) (added in v0.21.0), in trunk as of commit 50a0cf19.
#### Caveats for loading savegames from the [Spring 2013 Patch Pack](http://www.tt-forums.net/viewtopic.php?f=33&t=66892):