Blizzard has posted hotfixes for Dragonflight: Embers of Neltharion, with a note that last week's change to Embellishments has been reverted and replaced with a more robust change, alongside various bug fixes. Last week, Blizzard changed direct damage Embellishments such as Roiling Shadowflame to no longer interact with certain class-specific spells and abilities such as Fiery Demise, which ever since Battle for Azeroth have been intended to only interact with other class spells and abilities.
In doing so, however, they inadvertently caused those Embellishments to no longer benefit from Versatility, which resulted in an even greater nerf to their value. Today's hotfix reverts that change, instead adjusting a handful of class abilities to no longer affect Embellishments, while allowing the Embellishments to once again benefit from Versatility.
On a technical level, most class-specific damage modifiers like cooldowns and passive talents use what is called a whitelist to specify the spells and abilities that they affect. For example, the Spell Details under Avatar specifically cite several effects alongside their associated spells.
Not everything worked this way though — some abilities such as Elemental Weapons affect specific schools of magic, causing them to also benefit outside sources of damage such as primordial gems, trinkets, and embellishments. With today's hotfix, more (though not yet all) of these abilities are being converted to use whitelists so that some specializations will no longer gain unintended bonuses that others do not.
Here you'll find a list of hotfixes that address various issues related to World of Warcraft: Dragonflight, Wrath of the Lich King Classic, Burning Crusade Classic and WoW Classic. Read more on wowhead.com