Add changelog for v0.23.6 (#10446)

Author: sp1999

docs/content/en/docs/whatsnew/changelog.md

@@ -171,6 +171,40 @@ description: >
 - etcdadm-bootstrap-provider: `v1.0.16` to `v1.0.18`
 - controller-runtime: `v0.20.4` to `v0.21.0`
 
+## [v0.23.6](https://github.com/aws/eks-anywhere/releases/tag/v0.23.6)
+
+### Supported OS version details
+|                     | vSphere | Bare Metal | Nutanix | CloudStack | Snow |
+|:-------------------:|:-------:|:----------:|:-------:|:----------:|:----:|
+|    Ubuntu 20.04     |    ✔    |     ✔      |    ✔    |     —      |  ✔   |
+|    Ubuntu 22.04     |    ✔    |     ✔      |    ✔    |     —      |  —   |
+| Bottlerocket 1.50.0 |    ✔    |     —      |    —    |     —      |  —   |
+|      RHEL 8.x       |    ✔    |     ✔      |    ✔    |     ✔      |  —   |
+|      RHEL 9.x       |    ✔    |     ✔      |    ✔    |     ✔      |  —   |
+
+\* RHEL 8's kernel version (4.18) is not supported by kubeadm for Kubernetes versions 1.32 and above (see Kubernetes GitHub issue [#129462](https://github.com/kubernetes/kubernetes/issues/129462)). As a result, EKS Anywhere does not support using RHEL 8 as the node operating system for Kubernetes versions 1.32 and above.
+
+### Changed
+- EKS Distro:
+  - [`v1-33-eks-21`](https://distro.eks.amazonaws.com/releases/1-33/21/)
+  - [`v1-32-eks-31`](https://distro.eks.amazonaws.com/releases/1-32/31/)
+  - [`v1-31-eks-38`](https://distro.eks.amazonaws.com/releases/1-31/38/)
+  - [`v1-30-eks-49`](https://distro.eks.amazonaws.com/releases/1-30/49/)
+  - [`v1-29-eks-56`](https://distro.eks.amazonaws.com/releases/1-29/56/)
+  - [`v1-28-eks-66`](https://distro.eks.amazonaws.com/releases/1-28/66/)
+- New EKS-Distro base images with CVE fixes for Amazon Linux 2 and Amazon Linux 2023
+- cloud-provider-nutanix `v0.5.3` to `v0.5.5`
+- cluster-api-provider-aws-snow `v0.2.7` to `v0.2.8`
+- eks-anywhere-packages: `v0.4.8` to `v0.4.9`
+
+### Added
+- Add support for skipping BMC contact checks for specific Rufio Machines [#10368](https://github.com/aws/eks-anywhere/pull/10368)
+
+### Fixed
+- Set DHCP relay sourceInterface from LoadBalancerInterface config ([#10425](https://github.com/aws/eks-anywhere/pull/10425))
+- Eliminate race condition in package ctlr installation ([#10434](https://github.com/aws/eks-anywhere/pull/10434))
+- Fix Bottlerocket cert renewal: Add 30s sleep and duplicate container ([#10435](https://github.com/aws/eks-anywhere/pull/10435))
+
 ## [v0.23.5](https://github.com/aws/eks-anywhere/releases/tag/v0.23.5)
 
 ### Supported OS version details