Here are the datamined class and spell change for Patch 10.1.7 PTR build 50587.
Note: Many of these changes are from live hotfixes, also applied to the PTR.
Class ToolsBloodTalentsFrostTalentsUnholyTalents
Specialization (1)
Effect #4 Effect #1 Apply Aura: Modifies Damage/Healing Done
Value: 27.6540%
Affected Spells:
(and 60 more.)
Effect #2 Apply Aura: Modifies Periodic Damage/Healing Done
Value: 27.6540%
Affected Spells:
(and 60 more.)
Effect #1 Apply Aura: