This release contains both new features and a few bug fixes.
All users of Varnish Enterprise are encouraged to upgrade.
The main new features are:
Support for SRV records in VMOD goto.
VMOD sqlite3 in the varnish-plus-vmods-extra package.
VMOD stale, a new way of doing stale-while-revalidate and stale-on-error without having to resort to restarts.
For a complete list of features and bug fixes, see the Changelog.