#1 - Sept. 10, 2014, 12:24 p.m.
Blizzard Post
The 6.0 patch includes the much-discussed "stat squish," linearizing the item power curve between level 60 and level 90 content, with the effect of bringing endgame damage, health, and stat values back to more sane levels.

To offset the effect of this change on players' ability to solo or otherwise do old content, we've made a change to the combat system that gives players scaling bonus damage and reduced damage taken when fighting enemies that are lower-level and from a prior expansion. With the sheer amount of content involved, and the number of special-case mechanics found in boss fights over the years, it's quite possible that there are some exceptions or quirks for which we've failed to account.

Please use this thread to discuss cases where you attempted doing old content that you were able to successfully complete on the live servers, and found it to be significantly more challenging (or impossible). Details of exactly which ability or abilities were doing excessive damage, and logs if possible, would be particularly helpful.