diff --git a/ubuntu.18.04/Dockerfile b/ubuntu.18.04/Dockerfile
index 5423931..1749bfa 100644
--- a/ubuntu.18.04/Dockerfile
+++ b/ubuntu.18.04/Dockerfile
@@ -11,6 +11,8 @@ ARG Eks_Cli_Version=0.25.0
 ARG Google_Cloud_Cli_Version=339.0.0-0
 ARG Helm_Version=v3.7.1
 ARG Java_Jdk_Version=11.0.17+8-1ubuntu2~18.04	
+# If bumping Kubectl to 1.26 or above, please also add the gke-cloud-auth-plugin tool to this image to facilitate GKE login
+# See https://github.com/OctopusDeploy/Issues/issues/7621 for more info
 ARG Kubectl_Version=1.18.8-00
 ARG Octopus_Cli_Version=7.4.1
 ARG Octopus_Client_Version=8.8.3
diff --git a/windows.ltsc2019/Dockerfile b/windows.ltsc2019/Dockerfile
index 2e11da1..c475453 100644
--- a/windows.ltsc2019/Dockerfile
+++ b/windows.ltsc2019/Dockerfile
@@ -12,6 +12,8 @@ ARG Eks_Cli_Version=0.25.0
 ARG Google_Cloud_Cli_Version=339.0.0
 ARG Helm_Version=3.7.1
 ARG Java_Jdk_Version=14.0.2
+# If bumping Kubectl to 1.26 or above, please also add the gke-cloud-auth-plugin tool to this image to facilitate GKE login
+# See https://github.com/OctopusDeploy/Issues/issues/7621 for more info
 ARG Kubectl_Version=1.18.8
 ARG Node_Version=14.17.2
 ARG Octopus_Cli_Version=7.4.1