Not sure if they changed this recently - I stopped following them when they switched to subscription with fairly onerous terms (which they rectified after backlash to ‘mediocre’, but never to ‘fair value’).
The reason this is more fair is that I am paying for the version and one year of updates. Jetbrains has no right to say at the end of the period that since I did not renew, they are taking back the updates they gave me, as if it was by their grace I had been given the updates. I paid for the updates, I get to keep them.
That said, they have every contractual right to enforce whatever they think is fair, and I have every right to recommend against their products and/or prevent the bulk purchase if I am in a decision-making position about it.
In order to keep using it, I would be required to downgrade to the version available at the beginning of my subscription. 12 months ago.
If there are show stopping bugs in that version, then too bad. If it's not compatible with your current projects and plugins? Deal with it.
You can see it on the “buy” page.
It’s still less than ideal, but I pay yearly for their “all pack” product and I feel with the amount I use it I’ve gotten my money’s worth every year.