Wordpress 4.9
Prior to upgrade, when editing repeat event the prompt (popup) on saving offered three choices:
1 Only this event All others in the series will remain unchanged.
2 This event onwards Change applies to this event and all that come after it.
3 Every event Change applies to every event in the series.
After the upgrade only one choice is offered:
1 Only this event All others in the series will remain unchanged.
It works fine in sandbox but that's running 5.4 alpha. Is that safe to upgrade to?