Change the default App Hosting region to us-east4

CHANGELOG.md

@@ -1 +1,2 @@
 - Fixed an issue where functions deployments would silently fail (#6989)
+- Updates the default region for new App Hosting backends to us-east4 (#10271)

src/apphosting/backend.spec.ts

@@ -347,7 +347,7 @@ describe("apphosting setup functions", () => {
 
   describe("promptLocation", () => {
     const supportedLocations = [
-      { name: "us-central1", locationId: "us-central1" },
+      { name: "us-east4", locationId: "us-east4" },
       { name: "us-west1", locationId: "us-west1" },
     ];
 
@@ -358,16 +358,16 @@ describe("apphosting setup functions", () => {
 
     it("returns a location selection", async () => {
       const location = await promptLocation(projectId, /* prompt= */ "");
-      expect(location).to.be.eq("us-central1");
+      expect(location).to.be.eq("us-east4");
     });
 
     it("uses a default location prompt if none is provided", async () => {
       await promptLocation(projectId);
 
       expect(promptStub.select).to.be.calledWith({
-        default: "us-central1",
+        default: "us-east4",
         message: "Please select a location:",
-        choices: ["us-central1", "us-west1"],
+        choices: ["us-east4", "us-west1"],
       });
     });
 

src/apphosting/constants.ts

@@ -1,3 +1,3 @@
-export const DEFAULT_LOCATION = "us-central1";
+export const DEFAULT_LOCATION = "us-east4";
 export const DEFAULT_DEPLOY_METHOD = "github";
 export const ALLOWED_DEPLOY_METHODS = [{ name: "Deploy using github", value: "github" }];