The phrasing for Jetbrains cancellation sounds a bit off. As far as I understand it, cancelling leaves you with a perpetual license for the last release where

The phrasing for Jetbrains cancellation sounds a bit off. As far as I understand it, cancelling leaves you with a perpetual license for the last release where you had already paid a year's worth of subscription: https://sales.jetbrains.com/hc/en-gb/articles/207240845-What-is-a-perpetual-fallback-license- https://sales.jetbrains.com/hc/en-gb/articles/207240845-What... That means that it's likely that you would no longer own, say, version WebStorm 2020.01, but have to fall back to 2019.02 or something. That said, yeah, the mixture of OSS-licensed / trial / commercial versions does work pretty well for Jetbrains.