> It is "drop-in" in the sense that any app that works under b5 should work
> unchanged under b6. However, I would never ever ever ever :-) try to
> install Tomcat or any other package "on top of" an existing directory
> containing a different version. That's just asking for weird and wild
> bugs caused by directory structure reorganizations between versions.
>
> Do yourself a favor and install b6 into a new directory, and copy your
> webapps (and server.xml file, if needed) over.
Generally good advice, but considering that this is an "upgrade" from
version 4.0b5 to 4.0b6, it's not unreasonable to consider that
architectural elements like directory structure have remained the
same... Quite possible that nothing but the class files have been
changed.
