: Reports surfaced regarding difficulties scrolling through large address books using the mouse wheel, which worked correctly in previous versions. MikroTik community forum Legacy Support & Connectivity
A critical feature that prevents permanent changes if the connection is lost; any configuration changes made in this mode are automatically reverted if the Winbox session disconnects.
The release of marked a stable and robust point in this evolution. While earlier versions of the v3.x lineage introduced the modernized interface (moving away from the "classic" v2.x look), version 3.12 focused heavily on refinement, stability, and—most importantly—security protocols.