Let's Encrypt to reduce SSL certificate lifetimes to 64 days
Let's Encrypt will shorten its SSL and TLS certificate validity period from 90 days to 64 days starting in February 2027.
FTMQ Startups, written by our newsroom0 views
Non-profit certificate authority Let's Encrypt will shorten the maximum validity period of its free SSL and TLS certificates from 90 days to 64 days beginning on February 10, 2027, Ars Technica, UA.NEWS, and news.lavx.hu reported. [1][2][3]
The change aims to advance web security standards. Ars Technica reported that Let's Encrypt will begin testing the shorter 64-day duration on October 14, allowing website operators to opt in and test their infrastructure before the production rollout. [1]
Systems using modern Automated Certificate Management Environment clients that support ACME Renewal Information will experience a smooth transition, according to Ars Technica. System administrators relying on fixed renewal schedules or manual updates must adjust their configurations before the February 2027 deadline to avoid unexpected certificate expirations. [1]
Let's Encrypt is operated by the Internet Security Research Group and provides X.509 certificates for Transport Layer Security encryption at no cost. Launched in late 2015, the service aims to expand HTTPS adoption and currently secures hundreds of millions of websites worldwide. [4][6]
In short
- Let's Encrypt will reduce certificate lifetimes from 90 days to 64 days on February 10, 2027.
- Testing for the 64-day certificates begins on October 14.
- Administrators using modern ACME clients with renewal information support will face minimal disruption.
- Manual and hardcoded certificate renewal processes must be updated before February 2027.
Sources
Every paragraph above points to the numbered items it rests on. Read the originals here.
- [1]Let's Encrypt cuts certificate lifetimes to 64 days starting February 2027Ars Technica, 5h ago (the report this story comes from)
- [2]Let’s Encrypt to introduce 64-day certificates in February 2027 — Ars TechnicaUA.NEWS, 4h ago
- [3]Let's Encrypt moves all certificates to 64-day lifetimes in February 2027news.lavx.hu, 3h ago
Background
- [4]Let's Encrypt on Wikipedia
- [5]One Big Beautiful Bill Act on Wikipedia
- [6]Let's Encrypt on Grokipedia
- [7]February on Grokipedia
Our newsroom writes these reports with the help of software, from the 7 sources listed and nothing else, and checks them against those sources. Facts can still be wrong or move on; the originals are the record. Spotted a mistake? Write to daniel@monsterkong.com.
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