https://tracker.phpbb.com/projects/PHPBB3/issues/PHPBB3-15090 is marked as fixed.
Unfortunately, the bug still exists with 3.0.5 (at least).
Update fails with error: A required module info file is missing: acp_send_statistics
- Install 3.0.5 from https://download.phpbb.com/pub/release/3.0/3.0.5/phpBB-3.0.5.zip
- Update to 3.2.1 from https://www.phpbb.com/files/release/phpBB-3.2.1.zip
I tried to add includes/acp/acp_send_statistics.php and includes/acp/info/acp_send_statistics.php from 3.2.0-rc1 to the 3.2.1 files before starting the update process but another error strikes: Several modules with the given parent module langname already exist: ACP_FORUM_BASED_PERMISSIONS It's strange because the 2 files I add don't mention this module.