ETL vs "classic" - which client do we actually expect?

Still see people showing up on the wrong client. Can we state the official path in one place without a novel?

ETL for our boxes. Downloads page is ETL-first on purpose. Classic-only clients will have a bad time with our pk3 set.

We are not running dual stacks. ETL is the supported path. If something breaks pure, it is almost always wrong pk3s, not "need classic".

Linux ETL builds are fine. Stick to the version pinned on Downloads. Random GitHub nightlies will pure you.

I can add a one-line "supported client" blurb under the map pack if that stops the ticket.

I installed classic first because a YouTube video said so. Wasted an evening. Sticky would have saved me.

Linking this from trial DMs. Client confusion is still top three support topics.

Clear answer. ETL + hash match. Closing my own confusion publicly so the next person finds it.