- There were a number of issues with earlier <b>4.3x</b> versions
- so their use is discouraged. Security fixes in this release
- mean that all previous versions should be obsoleted in favour of
- 4.34 or 4.41. Users of 4.40 should be aware that there is an
- issue which may cause the exim daemon to die - this is fixed in
- 4.41 and later.