- <p>The previous 3.2x release is <b>3.22</b>. This is an
- incremental upgrade with a small number of new features and some
- bug fixes, however old 3.0x configuration files should be fully
- compatible. New features are documented in the CHANGES and
- NewStuff files Upgrading from previous releases is worth doing,
- particularly since a denial-of-service hole has been fixed over
- 3.0x and lower versions.</p>
+ <p> All versions of exim
+ previous to version <b>4.x</b> are now considered obsolete and
+ everyone is <b>strongly</b> recommended to upgrade to a current
+ release.</p>