OpenSSL 4.0 is in experimental. This package fails to build against it:

|  thread 'main' (3212926) panicked at /build/reproducible-path/389-ds-base-3.1.2+vendor1/vendor/openssl-sys/build/main.rs:423:5:
|
|
|  This crate is only compatible with OpenSSL (version 1.0.1 through 1.1.1, or 3), or LibreSSL 2.5
|  through 4.0.x, but a different version of OpenSSL was found. The build is now aborting
|  due to this version mismatch.
|

Full buildlog
https://breakpoint.cc/openssl-rebuild/logs-4/attempted/389-ds-base_3.1.2+vendor1-1_amd64-2026-04-19T14:06:50Z

Sebastian