18:49:17 <lvlinux> Mooseable: if you use kazoo_db I would think that would require the use of the official 2600Hz RPMs? Other than that I don't believe there were any breaking changes to Kamailio from v5.2 to v5.6 other than some things to do with SQL DB connections (extra DB columns and some ALTERs, etc.). Check the Changelogs to be sure but I think I'm right on that.