RHEL and perl
At Jobindex we use Red Hat Enterprise Linux. The OS is very stable and we feel that Red Hat is doing a lot of good stuff for Linux and OSS in general.
When it comes to perl the current version RHEL ships with version 5.8.8 which causes a bit frustration however. Some CPAN modules won't install and it seems like the people who writes modules for CPAN don't really care about our (good) old perl verison.
At YAPC::EU several of the speakers recommended installing perl ourselves instead relying on the OS version.
We have now decided to follow this recommendation. At the same time we will also start using git to manage perl and the installed modules to keep the versions in testing and production in sync. This way we wil also avoid messing with RPM packages.
So now I am looking forward to getting my hands on perl 5.12.2 :)