Based on current software records, here is the context regarding that specific version:

Version 3.0

NewBlueFX (now part of NewBlue, Inc.) offers video effects, transitions, and titling tools for editors using Premiere Pro, Vegas Pro, Final Cut Pro, DaVinci Resolve, etc. was released around 2012–2013 – very old. Build 121206 suggests a December 6, 2012 compile date.

NewBlueFX Bundle 3.0 Patch Build 121206: Enhancements and Fixes for Your Video Editing Workflow

Key Features

Resolution:

Bundle 3.0 was optimized for 1080p. Modern versions support 4K and 8K workflows with much higher precision.

Primary Focus:

Bug fixes for OpenFX (OFX) hosts and improvements for Adobe Premiere Pro and Sony Vegas Pro users.