Packages can also be downloaded from the official phpBB download page.We are pleased to announce the release of phpBB 3.3.1 "Bertie's Twenty". This version is a support and security release for branch 3.3.x, which fixes a security issue, introduces additional measures, and resolves various issues reported in previous versions.
Previous versions of phpBB allow you to limit the size of published images. However, this could also be used for e.g. Check for the existence of services that should only be accessible from the internal network.
Fixed issues include problems using Emojis in multiple text fields, the inability to delete or mark PMs read in the UCP folder view, password reset issues, and slow PostgreSQL search. The number of emails sent for topic-related notifications has been improved, and new and improved mechanisms have been integrated to enable and disable newer account field types.
The full list of changes is available in the changes file in the document folder contained in the download package. You can find the highlights of this edition in the wiki Release Highlights / 3.3.1 and a list of all problems fixed on the phpBB tracker https://tracker.phpbb.com/issues/?filter=15291
You can find the official post HERE.