For those of you interested in that sort of thing, the new version fixed the following bugs, made some improvements and added some features;
Bug
PHPBB.COM wrote:[PHPBB3-13175] - External accounts can be linked to more than one local account
[PHPBB3-14459] - Check language input for group
[PHPBB3-15211] - Emoji characters in forum name causing SQL errors
[PHPBB3-15885] - Group rank not displaying on memberlist_body
[PHPBB3-15897] - Unicode Characters in Attachment Comment Causes mySQL Error
[PHPBB3-15932] - Users can delete their attachments in the UCP, even if the post is locked
[PHPBB3-15961] - SMTP support for TLS is forcing use of deprecated TLS 1.0
[PHPBB3-15974] - The link "Back to previous page" can redirect to another page, not the previous one
[PHPBB3-15976] - Changing account settings without changing password resets user_passchg
[PHPBB3-15982] - Q&A captcha plug-in still throws PHP 7.2.x countable warning
[PHPBB3-16003] - Post count not updated when deleting only post in topic
[PHPBB3-16021] - Recognize number of Template Event instances in events.md file
[PHPBB3-16040] - Topic Icon with space in filename isn't displayed by viewforum_body.html
[PHPBB3-16048] - Unable to restore any backup from ACP
[PHPBB3-16050] - PHP warning in MCP banning tab on PHP 7.2+
[PHPBB3-16053] - BBCodes using {TEXT} in HTML tags no longer work
[PHPBB3-16054] - Style templates no longer able to login "from any page."
[PHPBB3-16055] - Unable to login using Oauth via Forums, topics or posts
[PHPBB3-16061] - Migrator never drops unique indexes
[PHPBB3-16063] - board_dst config value is not removed from config table after conversion
[PHPBB3-16066] - Banned or suspended user receives "The submitted form was invalid. Try submitting again."
[PHPBB3-16071] - Undefined index for custom attachments groups
[PHPBB3-16073] - Fix warning in ACP version check
[PHPBB3-16074] - Twemoji -fe0f sequence not rendering
[PHPBB3-16075] - PM filter “sent to my default usergroup” triggers array to string conversion warning
[PHPBB3-16080] - Warnings When a Style exists on database but not on FTP
[PHPBB3-16093] - Attach row template always gets displayed with JS disabled
[PHPBB3-16096] - MySQL full text search always uses MyISAM limits
[PHPBB3-16124] - Incorrect users search by last visit time in memberlist.php
[PHPBB3-16126] - AppVeyor builds fail due to chocolatey being unable to install PHP
Improvement
[PHPBB3-15745] - Hardcoded lang in credit line
[PHPBB3-15886] - Group helper functions
[PHPBB3-15946] - Add event - core.posting_modify_row_data
[PHPBB3-15967] - Unambiguous wording in user activation request email to Admin/Moderator
[PHPBB3-15984] - Use of 'Cache-Control: public' for serving files
[PHPBB3-16000] - Provide link to PHP Date Function in both ACP and UCP
[PHPBB3-16013] - Do not prevent username changes in ACP
[PHPBB3-16019] - Deny prosilver's uninstallation
[PHPBB3-16024] - Add core.topic_review_modify_sql_ary
[PHPBB3-16025] - Add 2 template events *_author_username_{append/prepend}
[PHPBB3-16047] - ACP Private Messages: Wording could be better
[PHPBB3-16058] - Remove sudo required from travis config
[PHPBB3-16065] - Undefined index: user_ip in oauth.php
[PHPBB3-16068] - Incorrect docblock parameter types
[PHPBB3-16070] - Remove support for WebSTAR and Xitami
[PHPBB3-16078] - Use chrome webdriver for UI tests
[PHPBB3-16089] - Add core.confirm_box_ajax_before
[PHPBB3-16097] - Add core.viewtopic_gen_sort_selects_before
[PHPBB3-16102] - Add core.posting_modify_post_subject
[PHPBB3-16103] - Add core.pm_modify_message_subject
[PHPBB3-16106] - Add core.mcp_main_before
[PHPBB3-16107] - Add mcp_move_destination_forum_before|after
[PHPBB3-16108] - Add topiclist_row_topic_by_author_before|after
[PHPBB3-16109] - Custom Profile Field visibility is incorrectly explained
[PHPBB3-16111] - Add core.message_history_modify_sql_ary
[PHPBB3-16113] - Add core.mcp_topic_modify_sql_ary
[PHPBB3-16114] - Add 2 mcp_topic_post_author_full_{append/prepend}
[PHPBB3-16127] - Add UI for Mass email $max_chunk_size
[PHPBB3-16129] - The attachment's ALT tag is supposed to describe the image, not the file.
Task
[PHPBB3-16067] - Define trusty build environment for travis builds
[PHPBB3-16112] - Update composer dependencies to latest
[PHPBB3-16119] - The text input for poll question has a too high maxlength attribute
Hardening
[PHPBB3-16101] - Add Referrer-Policy header
We also took the opportunity to strengthen our registration process (against spammers) and we updated our chat software.
If you experience any problems please let me know.
Thanks