change-log-version-number-regexp-list as being documented in the manual.
New command M-x change-log-redate fixes any old-style date entries in
a log file.
++++
Change Log mode now adds a file's version number to change log entries
if user-option `change-log-version-info-enabled' is non-nil.
++++
Unless the file is under version control the search for a file's
version number is performed based on regular expressions from
`change-log-version-number-regexp-list' which can be cutomized.