Updating confluence after email: Confluence Security Advisory - 2019-04-17
Pre-production test.
Upgrade from 6.13.0 --> 6.15.3 (atlassian-confluence-6.15.2-x64.bin)
Debian 8 with PostgreSQL 9.6.10
Upgrade proceeded without error. Upon loading browser for first time:
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Preparing to start Confluence
This page is for Confluence administrators. If you're seeing this page, your Confluence administrator is probably working to restore the service.
We discovered a problem while preparing to start Confluence. If you're a Confluence admin, you can either fix this problem now or ignore it, and start Confluence anyway.
Database: The database collation 'C' is not supported by Confluence. You need to use 'utf-8'.
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I selected 'ignore it'.
I need to resolve prior to production upgrade. Please advise :-)