Update note and versioon for 1.12.4 release (#7518)

coremain/version.go

@@ -2,7 +2,7 @@ package coremain
 
 // Various CoreDNS constants.
 const (
-	CoreVersion = "1.12.3"
+	CoreVersion = "1.12.4"
 	CoreName    = "CoreDNS"
 	serverType  = "dns"
 )

notes/coredns-1.12.4.md

@@ -0,0 +1,39 @@
++++
+title = "CoreDNS-1.12.4 Release"
+description = "CoreDNS-1.12.4 Release Notes."
+tags = ["Release", "1.12.4", "Notes"]
+release = "1.12.4"
+date = "2025-09-08T00:00:00+00:00"
+author = "coredns"
++++
+
+This release improves stability and security, fixing context propagation in DoH, label offset handling
+in the file plugin, and connection leaks in gRPC and transfer. It also adds support for the prefer option
+in loadbalance, introduces timeouts to the metrics server, and fixes several security vulnerabilities
+(see details in related security advisories).
+
+
+## Brought to You By
+
+Archy
+Ilya Kulakov
+Olli Janatuinen
+Qasim Sarfraz
+Syed Azeez
+Ville Vesilehto
+wencyu
+Yong Tang
+
+
+## Noteworthy Changes
+
+* core: Improve caddy.GracefulServer conformance checks (https://github.com/coredns/coredns/pull/7416)
+* core: Propagate HTTP request context in DoH (https://github.com/coredns/coredns/pull/7491)
+* plugin/file: Fix label offset problem in ClosestEncloser (https://github.com/coredns/coredns/pull/7465)
+* plugin/grpc: Check proxy list length in policies (https://github.com/coredns/coredns/pull/7512)
+* plugin/grpc: Fix span leak and deadline on error attempt (https://github.com/coredns/coredns/pull/7487)
+* plugin/header: Remove deprecated syntax (https://github.com/coredns/coredns/pull/7436)
+* plugin/loadbalance: Support prefer option (https://github.com/coredns/coredns/pull/7433)
+* plugin/metrics: Add timeouts to metrics HTTP server (https://github.com/coredns/coredns/pull/7469)
+* plugin/trace: Migrate dd-trace-go v1 to v2 (https://github.com/coredns/coredns/pull/7466)
+* plugin/transfer: Fix goroutine leak on axfr err (https://github.com/coredns/coredns/pull/7516)