This release improves plugin reliability and standards compliance, adding startup timeout to the Kubernetes plugin, fallthrough to gRPC, and EDNS0 unset to rewrite. The file plugin now preserves SRV record case per RFC 6763, route53 is updated to AWS SDK v2, and multiple race conditions in cache and connection handling in forward are fixed.

Brought to You By

blakebarnett Brennan Kinney Cameron Steel Dave Brown Dennis Simmons Guillaume Jacquet harshith-2411-2002 houpo-bob Oleg Guba Sebastian Mayr Stephen Kitt Syed Azeez Ville Vesilehto Yong Tang Yoofi Quansah

Noteworthy Changes

• plugin/auto: Return REFUSED when no next plugin is available (https://github.com/coredns/coredns/pull/7381)
• plugin/cache: Create a copy of a response to ensure original msg is never modified (https://github.com/coredns/coredns/pull/7357)
• plugin/cache: Fix data race when refreshing cached messages (https://github.com/coredns/coredns/pull/7398)
• plugin/cache: Fix data race when updating the TTL of cached messages (https://github.com/coredns/coredns/pull/7397)
• plugin/file: Return REFUSED when no next plugin is available (https://github.com/coredns/coredns/pull/7381)
• plugin/file: Preserve case in SRV record names and targets per RFC 6763 (https://github.com/coredns/coredns/pull/7402)
• plugin/forward: Handle cached connection closure in forward plugin (https://github.com/coredns/coredns/pull/7427)
• plugin/grpc: Add support for fallthrough to the grpc plugin (https://github.com/coredns/coredns/pull/7359)
• plugin/kubernetes: Add startup_timeout for kubernetes plugin (https://github.com/coredns/coredns/pull/7068)
• plugin/kubernetes: Properly create hostname from IPv6 (https://github.com/coredns/coredns/pull/7431)
• plugin/rewrite: Add EDNS0 unset action (https://github.com/coredns/coredns/pull/7380)
• plugin/route53: Port to AWS Go SDK v2 (https://github.com/coredns/coredns/pull/6588)
• plugin/test: Fix TXT record comparison logic for multi-string vs multi-record scenarios (https://github.com/coredns/coredns/pull/7413)