Did you upgrade directly to 10.11.2 from Yosemite or older? Some updates like iTunes and the bugfixes for the recovery system, that came out after the first full installation of 10.11.2 was made, won't be integrated in the recovery installer.
Also if you update soon to 10.11.3 and install OS X new again from the Recovery Partition you will get back to 10.11.2.
I don't know if the same happens when you just install OS X again to fix something and don't erase the disk before.
When it's a new MBP that came with El Capitan, you always get the current version by Internet Recovery.
I just mounted the recovery partition on my iMac. There is still the installer for some 10.11.2 Beta on it and I am now on 10.11.4 Beta 1.