So the patch notes for 2.4.3 (tomorrow) claim that "simultaneous effects" from equipping two relics of the same kind will no longer come into effect, ramming the point home further by stating that certain relics will now explicitly state that they cannot stack with any other relics of their type (Dread Forged and "Oberon" (What of Titania or Puck?) Serendipitous Assault relics are the two specific examples given).

I think we all knew that this change was coming sooner or later.
Let's see how long the fix lasts before it breaks again!