Hi,
how to update Varnish HTTP Cache v5.2.1 outdated version released over 2 years ago on 14 November 2017 to the latest version of Varnish HTTP Cache v6.3.1 which was released on 21 October, 2019 for CWP (Centos Web Panel) and CWP PRO (Centos Web Panel Pro) for Centos 7 !
This is the official link for this latest and stable release of Varnish HTTP Cache v6.3.1:
https://github.com/varnishcache/varnish-cache/releases/tag/varnish-6.3.1
This is the official link for the changelog of this latest and stable release of Varnish HTTP Cache v6.3.1:
https://github.com/varnishcache/varnish-cache/blob/6.3/doc/changes.rst
Thanks in advance for the support.