Add Consul ECS v0.5 release notes (#14010)

website/content/docs/release-notes/consul-ecs/v0_4_x.mdx

@@ -5,7 +5,7 @@ description: >-
   Consul ECS release notes for version 0.4.x
 ---
 
-# Consul ECS 0.4.0
+# Consul ECS 0.4.x
 
 ## Release Highlights
 
@@ -23,6 +23,6 @@ The changelogs for this major release version and any maintenance versions are l
 
 -> **Note**: These links will take you to the changelogs on the GitHub website.
 
-- [0.4.0](https://github.com/hashicorp/consul-ecs/releases/tag/v0.4.0)
-
 - [0.4.1](https://github.com/hashicorp/consul-ecs/releases/tag/v0.4.1)
+
+- [0.4.0](https://github.com/hashicorp/consul-ecs/releases/tag/v0.4.0)

website/content/docs/release-notes/consul-ecs/v0_5_x.mdx

@@ -0,0 +1,30 @@
+---
+layout: docs
+page_title: 0.5.x
+description: >-
+  Consul ECS release notes for version 0.5.x
+---
+
+# Consul ECS 0.5.x
+
+## Release Highlights
+
+- **Audit Logging (Enterprise) :** Consul on ECS now captures authentication events and processes them with the HTTP API. Audit logging provides insight into access and usage patterns. Refer to [Audit Logging](/docs/ecs/enterprise#audit-logging) for usage information.
+
+- **AWS IAM Auth Method :** This feature provides support for Consul's AWS IAM auth method. This allows AWS IAM roles and users to authenticate with Consul to obtain ACL tokens. Refer to [ECS Configuration Reference](/docs/ecs/configuration-reference#consullogin) for configuration information.
+
+- **Mesh Gateways :** This feature introduces support for running mesh gateways as ECS tasks. Mesh gateways enable service mesh communication across datacenter and admin partition boundaries. Refer to [ECS Installation with Terraform](/docs/ecs/terraform/install#configure-the-gateway-task-module) for usage information.
+
+## Supported Software Versions
+
+- Consul: 1.12.x
+
+## Changelogs
+
+The changelogs for this major release version and any maintenance versions are listed below.
+
+-> **Note**: These links will take you to the changelogs on the GitHub website.
+
+- [0.5.1](https://github.com/hashicorp/consul-ecs/releases/tag/v0.5.1)
+
+- [0.5.0](https://github.com/hashicorp/consul-ecs/releases/tag/v0.5.0)

website/data/docs-nav-data.json

@@ -1278,6 +1278,10 @@
       {
         "title": "Consul ECS",
         "routes": [
+          {
+            "title": "v0.5.x",
+            "path": "release-notes/consul-ecs/v0_5_x"
+          },
           {
             "title": "v0.4.x",
             "path": "release-notes/consul-ecs/v0_4_x"