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The first short-lifespan TLS renewal wave is closer than it looks
If your organization runs anything on the public internet, a mandate that changes how often you renew TLS certificates is already in effect. In March 2026, the maximum validity of public TLS certificates dropped from 398 days to 200. What fewer teams have worked out is that the first certificates issued under the 200-day cap start expiring at the end of September. That makes this autumn the first real test of whether your renewal workflows are ready for what the next three years will ask of them.