I've went over all past Expansions, Patches and Hot Fixes and have compiled a list that are pertinent to PvP:
It includes labeled PvP changes and Soul changes along with other sections that provided some kind of impact to PvP. The document started at 597 pages, unedited and unformated. Once I edited out the PvE, general Soul Point ability locations and other information I felt did not provide information for PvP, the document size came down to 170+ pages. So, as you can see there was a lot to go over. There are most likely mistakes and would love to be informed of these mistakes.