March 15, 2026: Newly issued certificates, including their Domain Control Validation, aka DCV, will have to be renewed every 200 days.
March 15, 2027: That lifespan will go down to 100 days.
March 15, 2029: New SSL/TLS certificates will be limited to 47 days, and 10 days for DCVs.

47. JOURS. Le futur de la sécurité !

Edit, voir aussi: https://loud-technology.com/insight/certificats-ssl-200-jours-fin-renouvellement-manuel/