+ A time line for XEmacs is
+
+@itemize @bullet
+@item
+version 19.11 (first XEmacs) released September 13, 1994.
+@item
+version 19.12 released June 23, 1995.
+@item
+version 19.13 released September 1, 1995.
+@item
+version 19.14 released June 23, 1996.
+@item
+version 20.0 released February 9, 1997.
+@item
+version 19.15 released March 28, 1997.
+@item
+version 20.1 (not released to the net) April 15, 1997.
+@item
+version 20.2 released May 16, 1997.
+@item
+version 19.16 released October 31, 1997.
+@item
+version 20.3 (the first stable version of XEmacs 20.x) released November 30,
+1997.
+@item
+version 20.4 released February 28, 1998.
+@item
+version 21.0.60 released December 10, 1998. (The version naming scheme was
+changed at this point: [a] the second version number is odd for stable
+versions, even for beta versions; [b] a third version number is added,
+replacing the "beta xxx" ending for beta versions and allowing for
+periodic maintenance releases for stable versions. Therefore, 21.0 was
+never "officially" released; similarly for 21.2, etc.)
+@item
+version 21.0.61 released January 4, 1999.
+@item
+version 21.0.63 released February 3, 1999.
+@item
+version 21.0.64 released March 1, 1999.
+@item
+version 21.0.65 released March 5, 1999.
+@item
+version 21.0.66 released March 12, 1999.
+@item
+version 21.0.67 released March 25, 1999.
+@item
+version 21.1.2 released May 14, 1999. (This is the followup to 21.0.67.
+The second version number was bumped to indicate the beginning of the
+"stable" series.)
+@item
+version 21.1.3 released June 26, 1999.
+@item
+version 21.1.4 released July 8, 1999.
+@item
+version 21.1.6 released August 14, 1999. (There was no 21.1.5.)
+@item
+version 21.1.7 released September 26, 1999.
+@item
+version 21.1.8 released November 2, 1999.
+@item
+version 21.1.9 released February 13, 2000.
+@item
+version 21.1.10 released May 7, 2000.
+@item
+version 21.1.10a released June 24, 2000.
+@item
+version 21.1.11 released July 18, 2000.
+@item
+version 21.1.12 released August 5, 2000.
+@item
+version 21.1.13 released January 7, 2001.
+@item
+version 21.1.14 released January 27, 2001.
+@item
+version 21.2.9 released February 3, 1999.
+@item
+version 21.2.10 released February 5, 1999.
+@item
+version 21.2.11 released March 1, 1999.
+@item
+version 21.2.12 released March 5, 1999.
+@item
+version 21.2.13 released March 12, 1999.
+@item
+version 21.2.14 released May 14, 1999.
+@item
+version 21.2.15 released June 4, 1999.
+@item
+version 21.2.16 released June 11, 1999.
+@item
+version 21.2.17 released June 22, 1999.
+@item
+version 21.2.18 released July 14, 1999.
+@item
+version 21.2.19 released July 30, 1999.
+@item
+version 21.2.20 released November 10, 1999.
+@item
+version 21.2.21 released November 28, 1999.
+@item
+version 21.2.22 released November 29, 1999.
+@item
+version 21.2.23 released December 7, 1999.
+@item
+version 21.2.24 released December 14, 1999.
+@item
+version 21.2.25 released December 24, 1999.
+@item
+version 21.2.26 released December 31, 1999.
+@item
+version 21.2.27 released January 18, 2000.
+@item
+version 21.2.28 released February 7, 2000.
+@item
+version 21.2.29 released February 16, 2000.
+@item
+version 21.2.30 released February 21, 2000.
+@item
+version 21.2.31 released February 23, 2000.
+@item
+version 21.2.32 released March 20, 2000.
+@item
+version 21.2.33 released May 1, 2000.
+@item
+version 21.2.34 released May 28, 2000.
+@item
+version 21.2.35 released July 19, 2000.
+@item
+version 21.2.36 released October 4, 2000.
+@item
+version 21.2.37 released November 14, 2000.
+@item
+version 21.2.38 released December 5, 2000.
+@item
+version 21.2.39 released December 31, 2000.
+@item
+version 21.2.40 released January 8, 2001.
+@item
+version 21.2.41 released January 17, 2001.
+@item
+version 21.2.42 released January 20, 2001.
+@item
+version 21.2.43 released January 26, 2001.
+@item
+version 21.2.44 released February 8, 2001.
+@item
+version 21.2.45 released February 23, 2001.
+@item
+version 21.2.46 released March 21, 2001.
+@end itemize
+