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4 <title>Versions of exim</title>
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8 <h1>Versions of exim</h1>
10 <p>The latest release is <b>4.05</b>. This is a major upgrade
11 over the 3.x versions which will require configuration files to be
12 rewritten (there are tools to help with this). This release is a
13 recommended bug fix update over earlier <b>4.0x</b> versions.</p>
15 <p>The latest 3.x release is <b>3.36</b>. This is the latest bug fix
16 release in the 3.3x series. They are an incremental upgrade over
17 the 3.2x series with a few new features. There is a security
18 issue (rare but exploitable) with versions previous to 3.34
19 so upgrading is <b>strongly</b> recommended.
20 Old 3.0x configuration files should be fully compatible.
21 New features are documented in the CHANGES and NewStuff files.</p>
23 <p>The previous 3.2x release is <b>3.22</b>. This is an
24 incremental upgrade with a small number of new features and some
25 bug fixes, however old 3.0x configuration files should be fully
26 compatible. New features are documented in the CHANGES and
27 NewStuff files Upgrading from previous releases is worth doing,
28 particularly since a denial-of-service hole has been fixed over
29 3.0x and lower versions.</p>
31 <p>There were a number of early beta versions of exim with version
32 numbers less than <b>1.0</b>. These should now be avoided.
33 Versions earlier than <b>2.0x</b> should also be upgraded.
34 Version 3.0x and 3.1x releases are also best upgraded.</p>
36 <p>There may be beta versions with available from the ftp sites in
37 the Testing directory. Many people are using these without
38 problems, but they are not recommended unless you are willing to
39 work with beta software.</p>
42 <address><a href="mailto:Postmaster@exim.org">Nigel Metheringham</a></address>
43 <!-- Created: Mon Aug 25 15:46:41 BST 1997 -->
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