MapServer 5.0.2 has just been released. This new release solves a build
problem that was reported with v5.0.1 released last week. It does not
contain any other bug fix or new feature. If you were able to build
MapServer 5.0.1 on your system then you probably do not need to upgrade.
Otherwise if you encountered build problems related to maplexer.c with
MapServer 5.0.1 last week then this 5.0.2 release is for you.