in reply to Re^2: manage commonly used modules
in thread manage commonly used modules

Apache2::Reload can be used to reload a newer version of a module without restarting the server (but you pay in lower performance of the server and your modules get unshared over the parent/children).

For the multiple-versions-of-the-same-module problem I do not know a solution.

CountZero

A program should be light and agile, its subroutines connected like a string of pearls. The spirit and intent of the program should be retained throughout. There should be neither too little or too much, neither needless loops nor useless variables, neither lack of structure nor overwhelming rigidity." - The Tao of Programming, 4.1 - Geoffrey James

In Section Seekers of Perl Wisdom