New: Introduced new filter rcp_is_rcp_admin_page. RCP scripts and styles are enqueued when this returns true so third party plugins can use this filter to load RCP scripts and styles on their own pages.
Improvement: $_POST data is now available during rcp_validate_registration_state ajax action.
Fix: MySQL errors on multisite when switch_blog action runs for the first time after new sites are created but before the database tables are created.
Fix: If a customers database table upgrade runs a second time it throws an error.
Fix: Improve logic on Stripe subscription creation dates to better protect against failures with non-standard billing cycles.
Fix: Add checks in case the one_time column is missing from the discounts database table, and add it in if so. This error could occur when upgrading from a very old version.
