diff --git a/schema/staticwebapp.config.json b/schema/staticwebapp.config.json
index 3d36c64fb..6cf29dbe4 100644
--- a/schema/staticwebapp.config.json
+++ b/schema/staticwebapp.config.json
@@ -588,6 +588,7 @@
             "dotnet:8.0",
             "dotnet-isolated:8.0",
             "dotnet-isolated:9.0",
+            "dotnet-isolated:10.0",
             "node:18",
             "node:20",
             "node:22",
diff --git a/src/cli/commands/deploy/deploy.ts b/src/cli/commands/deploy/deploy.ts
index f748accde..f674ac232 100644
--- a/src/cli/commands/deploy/deploy.ts
+++ b/src/cli/commands/deploy/deploy.ts
@@ -37,6 +37,11 @@ export async function deploy(options: SWACLIConfig) {
     apiVersion,
   } = options;
 
+  // normalize the hyphenated variant to the canonical value used throughout the codebase
+  if (apiLanguage === "dotnet-isolated") {
+    apiLanguage = "dotnetisolated";
+  }
+
   if (dryRun) {
     logger.warn("***********************************************************************");
     logger.warn("* WARNING: Running in dry run mode. This project will not be deployed *");
diff --git a/src/core/constants.ts b/src/core/constants.ts
index d29c94ebf..3d41b2873 100644
--- a/src/core/constants.ts
+++ b/src/core/constants.ts
@@ -307,7 +307,7 @@ export const DEFAULT_VERSION = {
 export const SUPPORTED_VERSIONS = {
   Node: ["18", "20", "22"],
   Dotnet: ["8.0"],
-  DotnetIsolated: ["8.0", "9.0"],
+  DotnetIsolated: ["8.0", "9.0", "10.0"],
   Python: ["3.9", "3.10", "3.11"],
 };