v11 remove support for AzureRM provider v3.

CHANGELOG-v10.md

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+# Changelog
+
+## Important Notice
+
+* fix: add back `private_cluster_enabled` variable by @tobiasehlert [#667](https://github.com/Azure/terraform-azurerm-aks/pull/667)

CHANGELOG.md

@@ -1,5 +0,0 @@
-# Changelog
-
-## Important Notice
-
-* fix: add back `private_cluster_enabled` variable by @tobiasehlert [#667](https://github.com/Azure/terraform-azurerm-aks/pull/667)

NoticeOnUpgradeTov11.0.md

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+# Notice on Upgrade to v11.0
+
+## AzureRM provider v3 support has been removed
+
+`v11.0.0` removed support for Terraform AzureRM provider `v3` and removed `//v4` folder. All users need to use `Azure/aks/azurerm` instead of `Azure/aks/azurerm//v4` as module `source`.
+
+## `var.enable_auto_scaling` has been renamed to `var.auto_scaling_enabled`
+
+This change also affects the `node_pools` variable where `node_pools[*].enable_auto_scaling` should be replaced with `node_pools[*].auto_scaling_enabled`.
+
+## `var.enable_host_encryption` has been renamed to `var.host_encryption_enabled`
+
+This change also affects the `node_pools` variable where `node_pools[*].enable_host_encryption` should be replaced with `node_pools[*].host_encryption_enabled`.
+
+## `var.enable_node_public_ip` has been renamed to `var.node_public_ip_enabled`
+
+This change also affects the `node_pools` variable where `node_pools[*].enable_node_public_ip` should be replaced with `node_pools[*].node_public_ip_enabled`.