I haven't seen an update to the Mega Code list v.21 which was last published in 2011. I have emailed my files to the maintainer of that list over six months ago, but haven't seen anything updated.
If you know me or have seen my posts, you know that I may not know everything about IRProtocol, but I do often have the obscure codes that people ask for.
And so, as a gift to match with Control Tower (just released by GC), I give you my one of my own master databases. I offer to you my own mega list. It is a combine master of the known megalists (which of course is a combined master of lots more), along with combining several of the other smaller lists from the downloads area, and of course, my own list that has been both collected and gifted over my last 15 years in the A/V industry.
I also strongly recommend bookmarking the following two sites. Note: I didn't release these links initially. They were found in the forums long before I came along; I simply have them saved. I recommend you do the same.
[Link: proaudioinc.com][Link: awe-europe.com]As soon as RC approves my upload, I will provide the link here.