* FEATURE: When importing a database, warn the user if the current MySQL server does not support a used character set, and offer to replace it (with a link explaining the risks)
* FEATURE: Generic S3 storage module can now use non-default ports (specify by appending
port number) to the host name)
* FIX: Re-scanning of remote storage would fail to detect a file manually uploaded to a secondary remote storage location if not also present locally. Various other (unlikely) corner-case rescanning scenarios also tested and fixed.
* TWEAK: Some enhancements to the S3 internals, to make the "S3 Generic" module behave better (it already worked) with the forthcoming DigitalOcean Spaces (object storage) (see:
How do I use UpdraftPlus with DigitalOcean Spaces? - UpdraftPlus)
* TWEAK: UpdraftCentral will no longer show updates which WordPress core lists which appear to be of the same version number
* TWEAK: Handle trying to download a zero-sized file through the browser more elegantly
* TWEAK: When pressing 'Delete', the "also delete remote backup" checkbox was showing even for backups without remote storage
* TWEAK: Abstract history handling into a separate class, UpdraftPlus_Backup_History, for easier maintenance
* TWEAK: Remove a use of count() on a string to prevent a new PHP notice on PHP 7.2+
* TWEAK: Some changes to the UpdraftCentral connection tool to make it more user-friendly
* TWEAK: Clarified and documented the re-scanning code, and made it compatible with the increased flexibility needed for incremental backups in future
* TWEAK: Tweaked UpdraftCentral GA handler to support Tracking ID editing and disconnection.
* TWEAK: In the free version, if the only difference between backup and site URLs is http/https, then show a different message to make the situation clearer
* TWEAK: Make the UPDRAFTPLUS_IPV4_ONLY constant take effect more widely
* TWEAK: Do not duplicate remote instance ID records in the backup history when re-scanning
* TWEAK: Keep the remote instance ID list consistent with the remote service list when re-scanning
* TWEAK: Prevent a PHP notice that could appear for locally stored backups in UpdraftPlus::get_storage_objects_and_ids()