An example of the DHCP client hook for Dynamic DNS (DDNS) for Microsoft Azure cloud has been added to the dhcp package. The administrator can now easily enable this hook, and register Red Hat Enterprise Linux clients with a DDNS server. (BZ#1321945)

With this update, postfix offers configuration options for more precise control of the Transport Layer Security (TLS) protocol version. For example, you can now disable TLS v1.1 while having TLS v1.2 enabled. To do this, add the following line to the main.cf file:

smtpd_tls_mandatory_protocols = !TLSv1.1

(BZ#1287192)