https://blog.wikimedia.org/2012/02/11/mediawiki-1-19-deployment/

https://www.mediawiki.org/wiki/MediaWiki_1.19

https://svn.wikimedia.org/viewvc/mediawiki/trunk/phase3/RELEASE-NOTES-1.19?view=markup

https://www.mediawiki.org/wiki/MediaWiki_1.19/Roadmap

The information is quite available if you ask/look for it

(In reply to comment #0)

MediaWiki 1.19 has been installed on all projects servers, without any
annoucement on the projects about incompabilities and detailed informations.

It isn't yet active on almost any of the *pedia projects. And, where it was installed, we posted to the Village Pump. See, for example:

https://simple.wikipedia.org/wiki/Wikipedia:Simple_talk?oldid=3374463#MediaWiki_1.19

https://commons.wikimedia.org/wiki/Commons:Village_pump?oldid=67522933#MediaWiki_1.19_deployment_to_Commons

lambdav wrote:

Nothing on https://fr.wikibooks.org !

I don't have to look at other web site to be notified. I want notification on https://fr.wikibooks.org like for Steward Election.

We do not announce upgrades on all projects. The place such announces are made is the wikimedia blog already mentioned by Sam above in comment 1.

You can also add the deployments category RSS feed to you favorite RSS reader

Category posts:
https://blog.wikimedia.org/c/technology/deployments/

Feed:
https://blog.wikimedia.org/c/technology/deployments/feed/

(In reply to comment #4)

We do not announce upgrades on all projects.

Actually, this time we tried to with [[m:Global_message_delivery]], and even though fr.wikibooks is in [[m:Distribution_list/Global_message_delivery]], the message wasn't delivered.

Adding mz who (I think) is the maintainer so that he can help diagnose.

(In reply to comment #5)

(In reply to comment #4)

We do not announce upgrades on all projects.

Actually, this time we tried to with [[m:Global_message_delivery]], and even
though fr.wikibooks is in [[m:Distribution_list/Global_message_delivery]], the
message wasn't delivered.

Adding mz who (I think) is the maintainer so that he can help diagnose.

The global message delivery bot doesn't support LiquidThreads. Either does the Wikimedia Foundation currently, for that matter. ;-)

It looks like https://fr.wikibooks.org/w/index.php?title=Wikilivres:Le_Bistro&action=edit actually has some JavaScript in it that auto-redirects users back to the view window if they click the edit tab and there's a large note in the edit window saying "<!-- NEVER EDIT THIS PAGE -->". So I suppose that answers that.

lambdav wrote:

I corrected the link to Wikilivres:Le_Bistro/Messages_actuels which is where all messages should be written.

rephrased summary

I think this is resolved.