Let's Encrypt moving to 64-day certificate lifetimes in 2027
Date:
Fri, 09 Oct 2026 14:02:44 +0000
Description:
Let's
Encrypt , the nonprofit that provides free TLS certificates for millions of sites, has announced that
it will be moving to certificates with 64-day lifetimes on February10,
2027: This means that any certificate we issue or renew on and after that
date will
have a 64 day validity period, and we expect the last 90-day certificate to expire on May 11, 2027. We will not revoke valid certificates as a part of this
process. This is the second stage of Let's Encrypt's plan, announced in 2025 , to move to 45-day certificate lifetimes as required by the the CA/Browser
Forum Baseline Requirements . In 2028, Let's Encrypt will switch to 45-day certificates.
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Link to news story:
https://lwn.net/Articles/1099588/
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