Change Details

For the "small default" release, we skipped this migration. Before deploying as default to the remaining wikis, we will copy over preferences as follows: The opt-in beta feature preference is `twocolconflict` and the new, opt-out preference is `twocolconflict-enabled`. | **prior pref state** | **new pref state** | **behavior** | | no preference | no preference | default to enabled | | no preference | opted in | enabled | | no preference | opted out | disabled | | beta feature enabled | no preference | enabled | | beta feature enabled | opted in | enabled | | beta feature enabled | opted out | disabled | | opted out | no preference | disabled | | opted out | opted in | enabled | | opted out | opted out | disabled | So the merge is simply, `$newPref ?: $oldPref ?: true`.

For the "small default" release, we skipped this migration. Before deploying as default to the remaining wikis, we will copy over preferences as follows: The opt-in beta feature preference is `twocolconflict` and the new, opt-out preference is `twocolconflict-enabled`. | **prior pref state** | **new pref state** | **behavior** | | no preference | no preference | default to enabled | | no preference | opted in | enabled | | no preference | opted out | disabled | | beta feature enabled | no preference | enabled | | beta feature enabled | opted in | enabled | | beta feature enabled | opted out | disabled | | opted out | no preference | disabled | | opted out | opted in | enabled | | opted out | opted out | disabled | So the merge is simply, `$newPref ?? $oldPref ?? true`.

For the "small default" release, we skipped this migration. Before deploying as default to the remaining wikis, we will copy over preferences as follows: The opt-in beta feature preference is `twocolconflict` and the new, opt-out preference is `twocolconflict-enabled`. | **prior pref state** | **new pref state** | **behavior** | | no preference | no preference | default to enabled | | no preference | opted in | enabled | | no preference | opted out | disabled | | beta feature enabled | no preference | enabled | | beta feature enabled | opted in | enabled | | beta feature enabled | opted out | disabled | | opted out | no preference | disabled | | opted out | opted in | enabled | | opted out | opted out | disabled | So the merge is simply, `$newPref ?:? $oldPref ?:? true`.