I've updated
http://wiki.debian.org/Teams/BashCompletion/Proposals/DropBash2Support
and set the minimum required version for bash-completion-2 to
bash-3.2.39. Bash-3.2.39 happens to be the minimal bash version on
Debian-5.0.3, but this minimal version is open for debate.
Right now 3.2.39
I tried to run bash-completion tests against multiple versions of bash.
I did this for every version I found a tarball for on the official ftp:
3.0, 3.0.16, 3.1, 3.2, 3.2.48, 4.0 and 4.1. Bash-completion version is
latest HEAD.
Here are the results I got:
bash-4.1:
# of expected passes
