Update version to 1.9.2 and add release note. (#5374)

coremain/version.go

@@ -2,7 +2,7 @@ package coremain
 
 // Various CoreDNS constants.
 const (
-	CoreVersion = "1.9.1"
+	CoreVersion = "1.9.2"
 	coreName    = "CoreDNS"
 	serverType  = "dns"
 )

notes/coredns-1.9.2.md

@@ -0,0 +1,46 @@
++++
+title = "CoreDNS-1.9.2 Release"
+description = "CoreDNS-1.9.2 Release Notes."
+tags = ["Release", "1.9.2", "Notes"]
+release = "1.9.2"
+date = "2022-05-13T00:00:00+00:00"
+author = "coredns"
++++
+
+This is a release with many added features and security and bug fixes. The most notable one is the
+release of 3rd party security audit from Trail of Bits. Security issues discovered by this audit
+have all been fixed or covered.
+
+## Brought to You By
+
+Antoine Tollenaere,
+Balazs Nagy,
+Chris O'Haver,
+dilyevsky,
+hansedong,
+Lorenz Brun,
+Marius Kimmina,
+nathannaveen,
+Ondřej Benkovský,
+Patrick W. Healy,
+Qasim Sarfraz,
+xuweiwei,
+Yong Tang
+
+## Noteworthy Changes
+
+* core: add Trail of Bits to list of 3rd party security auditors (https://github.com/coredns/coredns/pull/5356)
+* core: avoid usage of pseudo-random number (https://github.com/coredns/coredns/pull/5228)
+* plugin/bufsize: don't add OPT RR to non-EDNS0 queries (https://github.com/coredns/coredns/pull/5368)
+* plugin/cache: add refresh mode setting to serve_stale (https://github.com/coredns/coredns/pull/5131)
+* plugin/cache: fix cache poisoning exploit (https://github.com/coredns/coredns/pull/5174)
+* plugin/etcd: fix multi record TXT lookups (https://github.com/coredns/coredns/pull/5293)
+* plugin/forward: configurable domain support for healthcheck (https://github.com/coredns/coredns/pull/5281)
+* plugin/geoip: read source IP from EDNS0 subnet if provided (https://github.com/coredns/coredns/pull/5183)
+* plugin/health: rework overloaded goroutine to support graceful shutdown (https://github.com/coredns/coredns/pull/5244)
+* plugin/k8s_external: persist tc bit from lookup to client response (https://github.com/coredns/coredns/pull/4716)
+* plugin/k8s_external: set authoritative bit in responses (https://github.com/coredns/coredns/pull/5284)
+* plugin/kubernetes: fix k8s start up timeout ticker (https://github.com/coredns/coredns/pull/5361)
+* plugin/route53: deprecate plaintext secret in Corefile for route53 plugin (https://github.com/coredns/coredns/pull/5228)
+* plugin/route53: expand AWS config/credentials setup. (https://github.com/coredns/coredns/pull/5370)
+* plugin/template: fix rcode option documentation (https://github.com/coredns/coredns/pull/5328)