Updating the source from 5.4.7 to 5.4.8 is a lot of work, especially when we are trying to make something great and not some generic repack. 5.4.7 is the 3rd to last version of MoP that was released and then 5.4.8 (18291) and 5.4.8 (18414). throughout these 3 versions, 5.4.8 had it's opcode values and structures randomized, so it's a lot of work and has a need of required skills, more than basic c++ and SQL. It isn't necessarily as easy as copy pasting from other 5.4.8 cores either like SkyFire, as most of the structures in this are wrong, or incomplete, or not 5.4.8 at all. The reason I chose to update the source from 5.4.7 to 5.4.8 was to advance my skills and make something better overall, and I can tell you it has paid off. If I can estimate the completion from 5.4.7 to 5.4.8 update it's probably around 60-70% complete. About the core was initially updated to 5.4.8 and up to now, 138 commits have been made to the core, and 90% of them were related to opcode updates (there is more work not in the repo, I only push work when it's atleast 90% complete). I can go more in-depth into detail, but it would mostly be stuff most people would not understand about wow emulation.