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More information
See the CA/B Browser Forum's vote here: https://cabforum.org/2025/04/11/ballot-sc081v3-introduce-schedule-of-reducing-validity-and-data-reuse-periods/ Ballot SC081v3: Introduce Schedule of Reducing Validity and Data Reuse Periods (13 May 2025)
Communications from Sectigo: CA/Browser Forum passes ballot to reduce SSL/TLS certificates to 47 day maximum term, endorsed by Sectigo (14 April 2025)
Communications from DigiCert: TLS Certificate Lifetimes Will Officially Reduce to 47 Days (16 May 2025) https://www.sectigo.com/resource-library/sectigo-cab-reduce-ssl-tls-certificates-lifespan-47-daysCommunications from DigiCert: https://www.digicert.com/blog/tls-certificate-lifetimes-will-officially-reduce-to-47-days
Universiteit Twente (Netherlands) has some advice here: Automate your certificate management with ACME and SURF certificates
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