Image Line is not selling anymore their plugins in VST format. They are only included inside of FL Studio now. Something to consider for the long term use of this plugin.
Many products are released and never or rarely get updated, and stil work well years after release.
The race for endless updates is not better for me, unless it’s fixing a real problem or add something meaningful.
I’m pretty sure 8Dio will send an upgrade code to those having version 1. They said they would charge a small fee to cover server costs. In the past, my upgrades were always pretty low (28$ or less).