PHP 5.6 compatibility

[Njit]

Received a mail from my Hosting provider about php 5.6. I have the possibility to activate version 5.6. Will i have any issues with CMSMS?

[chandra]

Have not checked version 1.11.x but CMSMS 2 core is running with php 5.6.

But there could be another view with third party modules.

[Jo Morg]

As far as I could test, the core works fine with PHP 5.6. However you'll need to make sure that you have PHP errors logged instead of displayed, as there are a few deprecated notices that will otherwise show up. AFAIK these wont break CMSMS core. I can't vouch for 3rd party modules however, as you may understand.
Still, your host may have ways to have different PHP versions per script (most do), usually just by using a .htaccess flag on each script root directory. You should inquire your host support about that, just in case.