Update docs for 2.2.1 release (#4283)

Author: sjberman

.github/CHANGELOG_TEMPLATE.md

@@ -30,6 +30,7 @@ KNOWN ISSUES:
 COMPATIBILITY:
 
 - Gateway API version: ``
+- Gateway API Inference Extension version: ``
 - NGINX version: ``
 - NGINX Plus version: ``
 - NGINX Agent version: ``

CHANGELOG.md

@@ -4,6 +4,47 @@ This document includes a curated changelog for each release. We also publish a c
 a [GitHub release](https://github.com/nginx/nginx-gateway-fabric/releases), which, by contrast, is auto-generated
 and includes links to all PRs that went into the release.
 
+## Release 2.2.1
+
+_November 13, 2025_
+
+FEATURES:
+
+- Add support to make endpoint picker communication settings configurable. [4105](https://github.com/nginx/nginx-gateway-fabric/pull/4105)
+
+BUG FIXES:
+
+- Support mixed externalname and local services in single route. [4188](https://github.com/nginx/nginx-gateway-fabric/pull/4188)
+- Preserve HPA replicas on deployment. [4214](https://github.com/nginx/nginx-gateway-fabric/pull/4214)
+- Preserve external controller annotations. [4182](https://github.com/nginx/nginx-gateway-fabric/pull/4182)
+- Fix bug where user mounted files were being removed by NGINX. [4178](https://github.com/nginx/nginx-gateway-fabric/pull/4178)
+- Fix bug that prevented HPA from working when Inference Extension was enabled. [4247](https://github.com/nginx/nginx-gateway-fabric/pull/4247)
+
+HELM CHART:
+
+- Allow disabling cert-generator with a Helm value. [4186](https://github.com/nginx/nginx-gateway-fabric/pull/4186). Thanks to [fabian4](https://github.com/fabian4)
+- The version of the Helm chart is now 2.2.1
+
+
+KNOWN ISSUES:
+
+- Data plane sometimes does not sync upstream server IPs. [3626](https://github.com/nginx/nginx-gateway-fabric/issues/3626)
+
+COMPATIBILITY:
+
+- Gateway API version: `1.3.0`
+- Gateway API Inference Extension version: `1.0.1`
+- NGINX version: `1.29.2`
+- NGINX Plus version: `R35`
+- NGINX Agent version: `v3.5.0`
+- Kubernetes version: `1.25+`
+
+CONTAINER IMAGES:
+
+- Control plane: `ghcr.io/nginx/nginx-gateway-fabric:2.2.1`
+- Data plane: `ghcr.io/nginx/nginx-gateway-fabric/nginx:2.2.1`
+- Data plane with NGINX Plus: `private-registry.nginx.com/nginx-gateway-fabric/nginx-plus:2.2.1`
+
 ## Release 2.2.0
 
 _October 22, 2025_
@@ -27,6 +68,10 @@ HELM CHART:
 - The version of the Helm chart is now 2.2.0
 - Set NGINX Plus default image. [3919](https://github.com/nginx/nginx-gateway-fabric/pull/3919)
 
+KNOWN ISSUES:
+
+- Data plane sometimes does not sync upstream server IPs. [3626](https://github.com/nginx/nginx-gateway-fabric/issues/3626)
+
 COMPATIBILITY:
 
 - Gateway API version: `1.3.0`

README.md

@@ -36,7 +36,7 @@ You can find the comprehensive NGINX Gateway Fabric user documentation on the [N
 We publish NGINX Gateway Fabric releases on GitHub. See
 our [releases page](https://github.com/nginx/nginx-gateway-fabric/releases).
 
-The latest release is [2.2.0](https://github.com/nginx/nginx-gateway-fabric/releases/tag/v2.2.0).
+The latest release is [2.2.1](https://github.com/nginx/nginx-gateway-fabric/releases/tag/v2.2.1).
 
 The edge version is useful for experimenting with new features that are not yet published in a release. To use, choose
 the _edge_ version built from the [latest commit](https://github.com/nginx/nginx-gateway-fabric/commits/main)
@@ -47,7 +47,7 @@ to the correct versions:
 
 | Version        | Description                              | Installation Manifests                                                         | Documentation and Examples                                                                                                                                           |
 |----------------|------------------------------------------|--------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------------------------|
-| Latest release | For production use                       | [Manifests](https://github.com/nginx/nginx-gateway-fabric/tree/v2.2.0/deploy). | [Documentation](https://docs.nginx.com/nginx-gateway-fabric). [Examples](https://github.com/nginx/nginx-gateway-fabric/tree/v2.2.0/examples).                        |
+| Latest release | For production use                       | [Manifests](https://github.com/nginx/nginx-gateway-fabric/tree/v2.2.1/deploy). | [Documentation](https://docs.nginx.com/nginx-gateway-fabric). [Examples](https://github.com/nginx/nginx-gateway-fabric/tree/v2.2.1/examples).                        |
 | Edge           | For experimental use and latest features | [Manifests](https://github.com/nginx/nginx-gateway-fabric/tree/main/deploy).   | [Examples](https://github.com/nginx/nginx-gateway-fabric/tree/main/examples). |
 
 ### Versioning
@@ -68,7 +68,8 @@ The following table lists the software versions NGINX Gateway Fabric supports.
 
 | NGINX Gateway Fabric | Gateway API | Kubernetes | NGINX OSS | NGINX Plus | NGINX Agent |
 |----------------------|-------------|------------|-----------|------------|-------------|
-| Edge                 | 1.4.0       | 1.25+      | 1.29.2    | R35        | v3.5.0      |
+| Edge                 | 1.4.0       | 1.25+      | 1.29.3    | R35        | v3.5.0      |
+| 2.2.1                | 1.3.0       | 1.25+      | 1.29.2    | R35        | v3.5.0      |
 | 2.2.0                | 1.3.0       | 1.25+      | 1.29.2    | R35        | v3.3.2      |
 | 2.1.4                | 1.3.0       | 1.25+      | 1.29.1    | R35        | v3.3.1      |
 | 2.1.3                | 1.3.0       | 1.25+      | 1.29.1    | R35        | v3.3.1      |

charts/nginx-gateway-fabric/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: nginx-gateway-fabric
 description: NGINX Gateway Fabric
 type: application
-version: 2.2.0
+version: 2.2.1
 appVersion: "edge"
 kubeVersion: ">= 1.25.0-0"
 home: https://github.com/nginx/nginx-gateway-fabric

charts/nginx-gateway-fabric/README.md

@@ -1,7 +1,7 @@
 
 # NGINX Gateway Fabric Helm Chart
 
-![Version: 2.2.0](https://img.shields.io/badge/Version-2.2.0-informational?style=flat-square) ![AppVersion: edge](https://img.shields.io/badge/AppVersion-edge-informational?style=flat-square)
+![Version: 2.2.1](https://img.shields.io/badge/Version-2.2.1-informational?style=flat-square) ![AppVersion: edge](https://img.shields.io/badge/AppVersion-edge-informational?style=flat-square)
 
 - [NGINX Gateway Fabric Helm Chart](#nginx-gateway-fabric-helm-chart)
   - [Introduction](#introduction)