Oracle has published the Solaris 11.4 SRU 31 (Support Repository Update) operating system update, which offers a series of regular fixes and improvements for the Solaris 11.4 branch. To install the fixes proposed in the update, just run the 'pkg update' command.
The new release notes only the update of versions of programs with vulnerabilities fixed: BIND 9.11.28, Firefox 78.8.0esr, PHP 7.4 7.4.15, Pillow 8.1.0, Thunderbird 78.8.0, dnsmasq 2.84, libproxy 0.4.16, openjpeg 2.4.0 , openldap 2.4.57, pylxml4.6.2 and python-mod/cryptography.
Source: opennet.ru