18th December 2015 – ArcEm 1.50.1 release for RISC OS
This is just a maintenance release for the RISC OS version of ArcEm. There are only two notable changes compared to 1.50:

* The released binary has been compiled with GCC 4.7.4, eliminating a null pointer deference bug that was present with the previous version of GCC/UnixLib
* Support has been added for the new screen modes introduced with RISC OS 5.21 (e.g. 64k colour modes and red/blue swapped modes), improving compatibility with new machines

Grab the new version now from the SourceForge project files page.