Upgrading to 0.19.7, since it contains some fixes discovered after 0.19.6 have been released . Release notes here for more information about the bugfixes.
For this upgrade there will be downtime and I expect it to last around 30 min but it all depends on how long the database migrations will take. If there are any major issues with the upgrade, you can check the uptime site here or site status here
Local time can be seen here