What licensing scheme plugins can choose?
The following licensing schemes are supported:
Yearly/monthly subscription with a fallback license (similar to JetBrains Toolbox model, see this article about the fallback license: https://sales.jetbrains.com/hc/en-gb/articles/207240845-What-is-perpetual-fallback-license-.)
Yearly/monthly subscription without a fallback license (can use the product only when there is an active subscription.)
JetBrains has switched to a subscription model a few years back. Please refer to this blog post for more information why we have switched to the subscription model.
The following scheme is not implemented yet:
Perpetual license (one-time payment for the first version of the plugin, getting all the updates within the year, then paying for the upgrade, similar to TeamCity model or old JetBrains desktop-based tools model.)