Glibc compatibility

I’m the sysadmin of a computing cluster. We have a license for PGI Professional and we are about to update the system software, including Glibc and other libraries.
My question is: do you know of any problem with GlibC 2.12-1.209 ? Any compatibility issues?
I’m probably worrying too much but, you know, better safe than sorry :-)

Thank you in advance for your answer.

We have a number of machines with Centos 6.6, and we support
Centos 7. So gcc 4.4.7 is fine for installing PGI compilers on.


Thank you very much for your answer, we did the upgrade and everything seems fine.