This release contains several new features, including backend
connection queues for managing connections when
max_connections is reached,
support for ECDSA algorithms in
vmod_jwt and enhanced backend probes with
expect_close for servers that don’t honor Connection: close.
All users are encouraged to upgrade.
The VRT version has been updated with this version of Varnish Enterprise, which means that
VMODs need to be recompiled for this version to work with this version. Only VMODs you have compiled yourself are subject to the statement above. Packaged VMODs will always follow the VRT version of varnishd.
If the Varnish packages are upgraded without restarting, it is very likely that a VCL load will fail.
See Changelog for more details.