On Tuesday October 22nd we will be upgrading all preview instances to the 2019.10 version. Production instances will be upgraded the following week on Tuesday October 29th. This upgrade will not require any downtime for your instance. You can see what bugs are fixed in this version in the 2019.10 release notes post.
As was discussed at the last release, the version naming scheme that you will see in your admin console doesn't quite match our public naming scheme. Once upgraded, your admin console should show "2018.22" as your version. This discrepancy has been due to some quirks in sharing the deployment infrastructure with Aurea. We will soon be able to make updates to change this internal version naming, and will match it to the public naming you see here. In the meantime, please bear with us.
As always, let us know if you have any questions or concerns during the release process!