0patch is a subscription-based service, providing a time-limited access to our micropatches. When you purchase a license for PRO or Enterprise plan, you get access to all micropatches in that plan* - those already issued and those to be issued in the future - for the duration of subscription. In case the subscription is terminated without renewal, all micropatches on computers associated with the subscription get un-applied until a new subscription is established for these computers.
Automatic renewals are set by default for all new subscriptions to prevent an accidental fallout.
* PRO and Enterprise plan include the same micropatches.