@Johan: Tagged for User-notice. This isn’t due to go in soon but there’s no objection to announcing it’s happening and then when it’s done.

Or we can just announce as it’s about to happen?

Text for TechNews would be something like "The video player will change to be simpler and more modern. The current beta feature will become the experience for everyone. The old player will be removed."

We can announce it as a future news and then repeat it the week it is happening.

In T248418#6001144, @Johan wrote:

We can announce it as a future news and then repeat it the week it is happening.

That works. Note that it's already "live" on test2wiki; worth noting that too?

I think it's easier to just let people who want to test it test it as a beta feature, on their normal wiki where they speak the language and so on. Unless there's a difference in experience I'm missing?

In T248418#6002859, @Johan wrote:

I think it's easier to just let people who want to test it test it as a beta feature, on their normal wiki where they speak the language and so on. Unless there's a difference in experience I'm missing?

No, the experiences are the same.

Change 591124 had a related patch set uploaded (by Jforrester; owner: Jforrester):
[operations/mediawiki-config@master] [testwiki] Force videojs-only mode for TimedMediaHandler

https://gerrit.wikimedia.org/r/591124

Change 591124 merged by jenkins-bot:
[operations/mediawiki-config@master] [testwiki] Force videojs-only mode for TimedMediaHandler

https://gerrit.wikimedia.org/r/591124

Mentioned in SAL (#wikimedia-operations) [2020-04-20T18:38:30Z] <jforrester@deploy1001> Synchronized wmf-config/InitialiseSettings.php: T248418 [testwiki] Force videojs-only mode for TimedMediaHandler (duration: 01m 01s)