Install a new MyBB forum or upgrade from older versions.
.zip – 2.2 MBDownload from MyBB.com Download from GitHub.com (mirror)
Upgrade from the previous version.
.zip – 0.61 MBDownload from MyBB.com Download from GitHub.com (mirror)
This version improves cache system stability, and compatibility with PostgreSQL (PDO) and recent PHP versions.
Upgrading to this Version
To upgrade: copy and overwrite the files, and run the
install/ upgrade script.
Before performing any upgrade, remember to backup your forum’s files and database and store them safely.
If you have edited core files, including language files, please make sure you make a changelog for these changes so you can make them again (if necessary) once the upgrade is complete.
Follow the Upgrade Documentation for more detailed instructions.