Let’s Encrypt to Reduce Certificate Validity from 90 Days to 45 Days Let’s Encrypt has officially announced plans to reduce the maximum validity period of its SSL/TLS certificates from 90 days to 45 days. Est. reading time: 3 minutes Will this imp…

iirc all the let’s encrypt clients have some kind of automation to check for certificates expiring in the next n days and automatically renewing them. So by that logic there shouldn’t be any impact.

is this done by a cron job, rather than a sidekiq task ?

Yes, it is handled by acme.sh which sets up its own cronjob.

Let’s Encrypt 将证书有效期从 90 天缩短至 45 天

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one1 2025 年12 月 9 日 09:32 5

谢谢大家！很高兴知道

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Let’s Encrypt 将证书有效期从 90 天缩短至 45 天

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