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Let's Encrypt moving to 64-day certificate lifetimes in 2027

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Based on a feed excerpt; full article content has not been acquired. Source evidence retrieved 09/10/2026, 14:50:24 UTC.

Briefings

Let's Encrypt announced a transition to 64-day certificate lifetimes effective February 10, 2027, replacing the previous 90-day standard. This change aligns with the CA/Browser Forum Baseline Requirements, with a final shift to 45-day certificates scheduled for 2028. The organization will not revoke valid certificates during this transition period.

Key points

• Let's Encrypt will transition to 64-day certificate lifetimes effective February 10, 2027, replacing the current 90-day standard.
• The organization plans to switch to 45-day certificates in 2028, following a 2025 announcement of the 64-day phase.

Context and limitations

Evidence covers the 2026-2028 transition period only. Specific impact on existing certificate holders is not detailed, and the 2028 45-day plan is a forecast rather than a confirmed implementation date.

Generated by Bittrees-hosted qwen35-2b sha256:aaf42c8b7c3c on 09/10/2026, 15:29:29 UTC. Based on publisher-provided feed evidence; may not cover the full original article. Check the source for details.

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