Blizzard released a new patch update on February 3rd, with a few significant changes as Community Manager filthierich noted below on the forum. We will be updating our change guides as we are able to test the new content.
Druids' IAS and Summoning skills, Sorceress' Hydra, Paladin Holy Aura, and Barbarian and others' throwing skills are being significantly updated. Check out the details in the released patch notes at the link below.
filthierich Community Manager 11m PTR Update 2.3 A new Diablo II: Resurrected PTR patch is now live. For a look into the general balance changes, class-specific changes, and bug fixes click here. Read more on wowhead.com