20 Jul 2022

#### Bug fixes


 - Update UBI base image to 8.6 [calico #6350](https://github.com/projectcalico/calico/pull/6350) (@caseydavenport)
 - Update pacakges from UBI repo for CVE fixes [calico #6390](https://github.com/projectcalico/calico/pull/6390) (@caseydavenport)
 - Address PRISMA-2021-0108 and CVE-2018-17572 [calico #6171](https://github.com/projectcalico/calico/pull/6171) (@Josh-Tigera)
 - Fix a bug where the check for treating the 240/4 CIDR like RFC 1918 ranges caught the broadcast address 255.255.255.255 [calico #6390](https://github.com/projectcalico/calico/pull/6390) (@caseydavenport)
 - Fix race condition in BIRD that could potentially cause missed config updates [calico #6390](https://github.com/projectcalico/calico/pull/6390) (@caseydavenport)
 - Increase timeout when deleting workloads veth device in order to avoid false positives under heavy load. [calico #6366](https://github.com/projectcalico/calico/pull/6366) (@caseydavenport)
 - Fix lookups of locally defined hostnames from within Calico containers due to missing nsswitch.conf [calico #6335](https://github.com/projectcalico/calico/pull/6335) (@caseydavenport)

#### Other changes

 - Attach SHA256SUMS as part of release, including checksums for all release artifacts. [calico #5966](https://github.com/projectcalico/calico/pull/5966) (@caseydavenport)
