In the Posting that announce the timeline for 45 days cert, you write
"May 13, 2026: Let’s Encrypt will switch our tlsserver ACME profile to issue 45-day certificates. "
But also
"Changes will be deployed to our staging environment approximately one month before the production dates below."
From my Testing today, staging currently issues 90 days certs
They probably forgot to do it.
We are planning to make the switch tomorrow. An announcement and reminder will be made at the same time.