Some new features and other unofficial patches are available in the 1.3 patches directory. For details of all previously reported bugs, see the Apache bug database and known bugs pages. Many common configuration questions are answered in the Apache FAQ . Faster rewrite maps Rewrite maps have been made much faster for maps containing large number of entries. For both DBM and text maps, the result of lookups are cached in memory, including the case when the lookup failed.
Modules can also check for a lost connection more easily, by looking at the aborted field.
This article provides a brief look at how IIS and Apache compare, and why Apache is so widely used.