PlaySound() behavior changed in 7.3.0?
 

I noticed several changes in Ace3 and most of those are related to PlaySound.
For example, PlaySound("igMainMenuOptionCheckBoxOn") has been changed to PlaySound(SOUNDKIT.IG_MAINMENU_OPTION_CHECKBOX_ON) in Blizzard's frame codes.
Ace3's solution is changed it to below:
PlaySound(PlaySoundKitID and "igMainMenuOptionCheckBoxOn" or 856)

Does anyone has some more details regarding to this change?

Found this one:
https://www.townlong-yak.com/framexm...tConstants.lua

Looks like the API PlaySoundKitID has been removed from 7.3.0

PlaySound() will now only accept soundkit IDs.

Is it me or are there a few sounds missing from that list? (e.g., invite decline, quest failed, etc)

Oh I see it doesn't take a path anymore but a number.

I take it this will break AceGUI-3.0-SharedMediaWidgets and LibSharedMedia?

They're fully converting to numbers from strings, not entirely unlike what they're trying with textures -- it looks like they retired the old PlaySound() and reused the name for PlaySoundKitID().

PlaySoundKitID() -- Removed
PlaySound() -- only accepts numbers
SOUNDKIT{} -- table with numbers, found in SoundKitConstants.lua (example linked in original post) (nb: it may not be complete)

or

For the most part, the SOUNDKIT entries are similar to the text names though with more underscores.

If you want to seamlessly update, you can do what arith pointed out in the latest Ace3:
alternatively
I've converted my code to the latter and it runs w/o error.

What about custom sounds? weak auras, raven and other mods have a lot of those