I have been working with Apache 2.2.6 for about the last two months. I have a lot to say about the application but not a lot of time to type it up.
Overall, I think the most important piece of information I have found is that there is a minor bug in this version on Solaris 10. Not all processes should down cleanly. This causes problems on restarts with ODBC connections. I have the bug tracker number and will include it on this blog.
Additionally I have the write up for compiling apache with mod_dbd working with ODBC. Look for it shortly.
Also, I found a great website that documented the defined methods for encrypting passwords with Apache for authentication.