If you want to be more precise, you could say "a root certificate that Let's Encrypt will be able to use to build an unexpired trust path after September 2024"

If you want to be more precise, you could say "a root certificate that Let's Encrypt will be able to use to build an unexpired trust path after September 2024" (because of the fact that Android doesn't enforce expiration of roots, but does enforce expiration of certificates signed by them). https://letsencrypt.org/2023/07/10/cross-sign-expiration.html https://letsencrypt.org/2023/07/10/cross-sign-expiration.htm...