[An on-line version of this announcement will be available at http://www.postfix.org/announcements/postfix-3.1.2.html]
Postfix stable release 3.1.2 is available, as well as legacy release 3.0.6.
Fixed with Postfix 3.1.2:
Changes to make Postfix build with OpenSSL 1.1.0.
Fixed with Postfix 3.1.2 and 3.0.6:
The makedefs script ignored readme_directory=pathname overrides. Fix by Todd C. Olson.
The tls_session_ticket_cipher documentation says that the default cipher for TLS session tickets is aes-256-cbc, but the implemented default was aes-128-cbc. Note that TLS session ticket keys are rotated after 1/2 hour, to limit the impact of attacks on session ticket keys.
You can find the updated Postfix source code at the mirrors listed at http://www.postfix.org/.