Let's Encrypt Oak 2024h1 Shutdown on or after Oct 18th.

[Matthew McPherrin]

Let's Encrypt Oak 2024h1 will be shut down on or after October 18th, which is 90 days after the end of the expiry window for the log. Sapling 2024h1 will be shut down shortly before Oak.

Previous iterations of the Oak log have had mirrors of their data maintained by Google, but they have not mirrored Oak 2024h1. If there is a need for the data contained in Oak 2024h1 past its shutdown date, we are investigating if the data can be provided in an archived format, such as the Static CT API. If this is of interest, please let me know. If you otherwise rely on Google's mirrors, please let them know about your use-case.

As always, the list of Let's Encrypt logs is maintained at https://letsencrypt.org/docs/ct-logs/.

Thanks,

Matthew McPherrin

Let's Encrypt SRE

P.S: https://transparency.dev/summit/ is happening now!  Check out the talk streams at https://youtube.com/@transparency-dev220/streams, including my talk tomorrow about Let's Encrypt CT Log operations.