(Well, OK, maybe it's not quite that distinct, but you get the idea.)
If you want support and a reasonable guarantee that what you're
developing will continue to work in the future, then you have to run
-the supported version. As of early March 2001 that probably means
-running either of the releases 5.6.0 (released in March 2000) or
+the supported version. As of April 2001 that probably means
+running either of the releases 5.6.1 (released in April 2001) or
5.005_03 (released in March 1999), although 5.004_05 isn't that bad
if you B<absolutely> need such an old version (released in April 1999)
for stability reasons. Anything older than 5.004_05 shouldn't be used.