diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 3d8b42e3..278fa03b 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    ".": "9.0.0-rc.5"
+    ".": "9.0.0-rc.6"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 521a186b..2262dd2e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,33 @@
 
 All notable changes to the LaunchDarkly Relay will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org).
 
+## [9.0.0-rc.6](https://github.com/launchdarkly/ld-relay/compare/v9.0.0-rc.5...v9.0.0-rc.6) (2026-08-04)
+
+
+### Features
+
+* Add payload serialization and response write spans to polling endpoints ([#784](https://github.com/launchdarkly/ld-relay/issues/784)) ([3649353](https://github.com/launchdarkly/ld-relay/commit/3649353192c73fc89b39510bf1b6331431a9ca9b))
+* Bound REPORT eval request body size with a 5 MiB default ([#767](https://github.com/launchdarkly/ld-relay/issues/767)) ([984ccf3](https://github.com/launchdarkly/ld-relay/commit/984ccf3633464188e5d93974c56b79e8c922e851))
+* Make usage metrics event publisher capacity configurable ([#766](https://github.com/launchdarkly/ld-relay/issues/766)) ([cab4d51](https://github.com/launchdarkly/ld-relay/commit/cab4d511b2dd5e2918f6be299e5a3a818d65f7ea))
+
+
+### Bug Fixes
+
+* Count serialized flags, and cover the serialize error paths ([#794](https://github.com/launchdarkly/ld-relay/issues/794)) ([8da4829](https://github.com/launchdarkly/ld-relay/commit/8da482925e141e77e2ca088cbd9b7b75f8c2545a))
+* **deps:** Bump go-server-sdk to v7.15.4, reverting v4 core libraries to v3 ([#776](https://github.com/launchdarkly/ld-relay/issues/776)) ([bb920ab](https://github.com/launchdarkly/ld-relay/commit/bb920ab58f787473fc1d719cb9f14175cc516405))
+* **deps:** bump grpc, x/net, x/text to patch disclosed CVEs ([#773](https://github.com/launchdarkly/ld-relay/issues/773)) ([719f049](https://github.com/launchdarkly/ld-relay/commit/719f049c7d7ae621e677dccb1ab0be07afc2ed60))
+* **deps:** Bump OpenTelemetry dependencies to patch CVE-2026-41178 ([#777](https://github.com/launchdarkly/ld-relay/issues/777)) ([b9519a7](https://github.com/launchdarkly/ld-relay/commit/b9519a7e51d5dbb3c91ff0f7974c67ac5f2d7e5d))
+* Encode FDv2 stream events in a single jwriter pass ([#757](https://github.com/launchdarkly/ld-relay/issues/757)) ([40a0c28](https://github.com/launchdarkly/ld-relay/commit/40a0c283bfae8e6483df1a06578efa324ea27374))
+* End auth span before invoking the next handler ([#783](https://github.com/launchdarkly/ld-relay/issues/783)) ([c3719af](https://github.com/launchdarkly/ld-relay/commit/c3719af686bf66fd2c89aafc4a764236a216f218))
+* Redact end-user context from the url.path span attribute ([#791](https://github.com/launchdarkly/ld-relay/issues/791)) ([9116839](https://github.com/launchdarkly/ld-relay/commit/911683927ca5e07a747ba4905cd67bde8440f03c))
+* Stop reporting response bytes that were never written ([#792](https://github.com/launchdarkly/ld-relay/issues/792)) ([4d6c758](https://github.com/launchdarkly/ld-relay/commit/4d6c758a705f064079b76a3f964982bd04a5fe80))
+* stop server-side stream replay producer when the SDK client disconnects ([#774](https://github.com/launchdarkly/ld-relay/issues/774)) ([42ba69d](https://github.com/launchdarkly/ld-relay/commit/42ba69db91fba5044b44c1e2f807d453d7948ff9))
+
+
+### Performance Improvements
+
+* Resolve the tracer once per polling handler ([#793](https://github.com/launchdarkly/ld-relay/issues/793)) ([62ec5cb](https://github.com/launchdarkly/ld-relay/commit/62ec5cbfad3f6bd2bf6b9f158eddad1f1a7b3db6))
+
 ## [9.0.0-rc.5](https://github.com/launchdarkly/ld-relay/compare/v9.0.0-rc.4...v9.0.0-rc.5) (2026-07-16)
 
 
diff --git a/relay/version/version.go b/relay/version/version.go
index 9d5c4dda..4d5f0ba5 100644
--- a/relay/version/version.go
+++ b/relay/version/version.go
@@ -2,4 +2,4 @@
 package version
 
 // Version is the package version
-const Version = "9.0.0-rc.5" // {{ x-release-please-version }}
+const Version = "9.0.0-rc.6" // {{ x-release-please-version }}