Includes additional support for session caching across processes using shared memory. This module, which was experimental in HP Apache 2.0.x, is a standard module in 2.x. In 2.0.x this module was called mod_digest.
ASF Apache 2.x doc on mod auth digest
ASF Apache 2.0.x doc on mod digest
The amount of shared memory to allocate for keeping track of clients
Autoindex'ed directory listings can now be configured to use HTML tables for cleaner formatting, and allow finer-grained control of sorting, including version-sorting, and wildcard filtering of the directory listing.