Default version of Ruby has changed to 3.3. And Ruby 3.2 series has already switch to security fix only phase with the release of 3.2.8. So mark DEPRECATED to encourage user to migrate to newer version, History shows that upstream has released the last version of each series after the planed EoL date. So set EXPIRATION_DATE to 2026-04-30, one month after the day. Approved by: self (with hat of ruby)