LibreSSL 2.5.4 Released

We have released LibreSSL 2.5.4, which will be arriving in the
LibreSSL directory of your local OpenBSD mirror soon. It includes the
following changes:

* Reverted a previous change that forced consistency between return
value and error code when specifing a certificate verification
callback, since this breaks the documented API. When a user supplied
callback always returns 1, and later code checks the error code to
potentially abort post verification, this will result in incorrect
successul certificate verification.

* Switched Linux getrandom() usage to non-blocking mode, continuing to
use fallback mechanims if unsuccessful. This works around a design
flaw in Linux getrandom(2) where early boot usage in a library makes
it impossible to recover if getrandom(2) is not yet initialized.

* Fixed a bug caused by the return value being set early to signal
successful DTLS cookie validation. This can mask a later failure and
result in a positive return value being returned from
ssl3_get_client_hello(), when it should return a negative value to
propagate the error.

* Fixed a build error on non-x86/x86_64 systems running Solaris.

This is the first stable fix release for the LibreSSL 2.5.x branch. The
next development release will be 2.6.0.