Today's release is a minor update related to changed in WordPress 5.0.1 for backward compatibility.
Backup Before Upgrading
Please consider backing up your site (both server files & MySQL Database) whenever updating plugins. Here are some backup recommendations.
Download NextGEN Gallery from our WordPress gallery plugin page on WordPress.org or visit the Plugin page in your WordPress admin area to utilize the auto-update feature.
Changes in 3.1.2
- Fixed: Variable mismatch error when using central gallery management pages
For the history of changes, view the full changelog.