Custom contexts module

I recently downloaded 0.3.6.tgz Custom Contexts Module. With Elastix 1.6-12 I have FreePBX Is 0.3.6 the right Custom Contexts Module to load? Thanks.

Custom-Contexts v0.3.6 is the latest version until the upgrade is completed to bring it into compliance with FreePBX 2.8.

I do not have experience with Elastix enough to know if this will work or not on that old a version of FreePBX.