MapServer 4.10.1 has just been released. This new release addresses a few issues that were fixed since version 4.10.0 and contains no new functionality. The full change log can be browsed online at:
http://mapserver.gis.umn.edu/download/current/HISTORY.TXT
The source package is available in the MapServer downloads page:
http://mapserver.gis.umn.edu/download/current/
Precompiled binaries should be available shortly at the usual locations (also linked from the download page above).