It can be difficult to find up to date Combat Style (Advanced Classes) guides for SWTOR.
So we've created this list of links to all the current SWTOR class guides.
New 7.0 Guides are marked in bold. 

With the release of SWTOR 7.0 you can now choose two combat styles for each character.
Characters can either be Force wielder or Tech user, you cannot combine a Force and Tech Combat Style on the same character.

Players with Dark V & Light V achievements can select from all 8 Combat Styles, all 4 light side and all 4 dark side options.

All Credit goes to the Authors and hosts of these guides. 
Huge thanks to  Vullk, Merlyn, Dulfy & MMOBits, MrBocell & the guide authors for all their hard work!