NCSA Mosaic Version Information

The following versions of NCSA Mosaic are either released or under development:

Version 1.0
Baseline supported NCSA Mosaic release.
Version 1.1
Maintenance release.
Version 1.2
Maintenance release.
Version 2.0
Latest official, supported version of Mosaic.
Version 2.1
Maintenance release.
Version 2.2
Maintenance release.
Version 2.3
Maintenance release.
Version 2.4
Very rapid maintenance release.
A canonical feature list for version 2.4 is here.