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I'm afraid such page would be nearly impossible to maintain. You can check some stuff that is happening in issues like https://github.com/TrinityCore/TrinityCore/issues/15079 (changelog), https://github.com/TrinityCore/TrinityCore/issues/15127 (SAI for Catalysm creatures), https://github.com/TrinityCore/TrinityCore/issues/15181 (Cataclysm Zones - Movement) or https://github.com/TrinityCore/TrinityCore/issues/15182 (Cataclysm Zones - Quests + Phasing)

Sniffing records everything sent between the client and the server (see Opcodes.h) There's a sticky already saying how to use the sniffer here. Atm we don't need anything from sniffs however any sniff will be useful eventually. You can upload the .pkt files somewhere and put the link in http://community.trinitycore.org/forum/13-wdbadbsniffs/

Since the 6.x branch is in an early alpha phase (should be ONLY used for development) those errors are normal. Once content development makes further progess the errors will be fixed too. Kind regards, Carbenium

Just to make it clear, VS 2015 works fine with TC (however you'll need to compile your own Boost libs since they don't yet ship installers for msvc-14) And yes, you could have unchecked all the options in the VS install screen, including the emulators.