= Blockers
[] all subtask of epic reviewed and resolved(if not removed as subtasks)
[] Community consultation for behavior for logged-in users started and any follow ups outlined by @CKoerner_WMF have been added here.
[] T189906 has been completed and VirtualPageViews is enabled on all wikis
[] Patches relating to T190188 are on English and German Wikipedia
[] @CKoerner_WMF has reviewed blockers and ticked this box personally to say they are correct
[] @ovasileva has reviewed blockers and ticked this box personally to say they are correct
[] @Tbayer has reviewed blockers and ticked this box personally to say they are correct
[] @Jdlrobson has reviewed blockers and ticked this box personally to say they are correct
[] @nirzar has reviewed blockers and ticked this box personally to say they are correct
= Acceptance criteria
[] All boxes in the blockers have been ticked. We're ready to go!
[] Patch is written per developer notes.
[] Deploy is scheduled for Monday 9th April and a meeting is added to the calendar. @ABorbaWMF a design rep and @ovasileva should be available for testing.
= Developer notes
The deploy script should take care of the following
[] wmgUsePopups is currently messy simplify it
```
pp_stage0' => true,
'pp_stage1' => true,
// T172291
'enwiki' => true,
'dewiki' => true,
```
should be:
```
'wikipedia' => true,
```
[] wgPopupsAnonsExperimentalGroupSize should be set to 0 for all wikis ('default'). Counter-intuitively this means Popups is enabled to 100% of anons. Note given the value of wmgUsePopups this will not enable Popups for non-wikipedias
= During deploy
[] Verify that Page previews is showing on all wikipedias for anonymous users and for logged in (only if opted in) - I suggest testing Spanish, German, Hebrew and English to verify
[] Verify that the [[ https://grafana.wikimedia.org/dashboard/db/eventlogging-schema-jumbo?orgId=1&var-datasource=eqiad%20prometheus%2Fops&var-schema=VirtualPageView | rate of events for VirtualPageViews ]] is still at healthy values (~700-800 events/sec). Errors are around normal rate.
[] Verify that page previews remains disabled on all other projects e.g. Wikidata, Wiktionary
[] Green light from @ABorbaWMF to sync
[] Green light from @Nirzar to sync
[] Green light from @ovasileva to sync
= Post deploy
[] https://www.mediawiki.org/wiki/Reading/Web/Release_timeline has been updated
[] A formal request for cake has been made - point person @MBinder_WMF
[] Parent tasks- both goal and epic are resolved.
[] Set up tasks based on community consultation results
[] post a gif to the team channel
[] Mel and comms are notified
[] Short blog post published
[] Tweet!!!