Merge branch 'main' into jru905-llm-d-router

Author: SachinVarghese

go.mod

@@ -45,7 +45,7 @@ require (
 	golang.org/x/sync v0.21.0
 	golang.org/x/time v0.15.0
 	google.golang.org/genproto/googleapis/api v0.0.0-20260526163538-3dc84a4a5aaa
-	google.golang.org/grpc v1.81.1
+	google.golang.org/grpc v1.82.1
 	google.golang.org/protobuf v1.36.11
 	k8s.io/api v0.35.6
 	k8s.io/apiextensions-apiserver v0.35.6

go.sum

@@ -319,8 +319,8 @@ google.golang.org/genproto/googleapis/api v0.0.0-20260526163538-3dc84a4a5aaa h1:
 google.golang.org/genproto/googleapis/api v0.0.0-20260526163538-3dc84a4a5aaa/go.mod h1:q4lMZS6kskjT5HvCPrnnypcDPVJqT/f4nfxmkE7gryY=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20260526163538-3dc84a4a5aaa h1:mZHHdPZl0dbGHCflZgAq/Q468DWVFcU2whhB2KAo8fk=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20260526163538-3dc84a4a5aaa/go.mod h1:4Hqkh8ycfw05ld/3BWL7rJOSfebL2Q+DVDeRgYgxUU8=
-google.golang.org/grpc v1.81.1 h1:VnnIIZ88UzOOKLukQi+ImGz8O1Wdp8nAGGnvOfEIWQQ=
-google.golang.org/grpc v1.81.1/go.mod h1:xGH9GfzOyMTGIOXBJmXt+BX/V0kcdQbdcuwQ/zNw42I=
+google.golang.org/grpc v1.82.1 h1:NnAxzGRA0677vCa4BUkOAnO5+FfQqVl9iUXeD0IqcGE=
+google.golang.org/grpc v1.82.1/go.mod h1:yzTZ1TB1Z3SG+LIYaI+WiE8D5+PZ3ArnrSp8zF3+/ZA=
 google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
 google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

release-notes.d/unreleased/2119.md

@@ -0,0 +1,7 @@
+---
+pr: 2119
+url: https://github.com/llm-d/llm-d-router/pull/2119
+author: LukeAVanDrie
+date: 2026-07-21
+---
+The fairness_id metric label is now capped at 1000 distinct values; additional fairness IDs are reported under the `other` label value. Flow control metric series for a fairness ID are removed when its flow is garbage collected. This bounds EPP memory and metrics-pipeline load, which were previously unbounded because the label derives from a client-controlled header.