diff --git a/src/dataconnect/schemaMigration.ts b/src/dataconnect/schemaMigration.ts
index e26df809eed..1741a35bd5a 100644
--- a/src/dataconnect/schemaMigration.ts
+++ b/src/dataconnect/schemaMigration.ts
@@ -24,7 +24,6 @@ import { Schema } from "./types";
 import { Options } from "../options";
 import { FirebaseError } from "../error";
 import { logLabeledBullet, logLabeledWarning, logLabeledSuccess } from "../utils";
-import * as experiments from "../experiments";
 import * as errors from "./errors";
 
 export async function diffSchema(
@@ -41,13 +40,11 @@ export async function diffSchema(
   let diffs: Diff[] = [];
 
   // If the schema validation mode is unset, we surface both STRICT and COMPATIBLE mode diffs, starting with COMPATIBLE.
-  let validationMode: SchemaValidation = experiments.isEnabled("fdccompatiblemode")
-    ? schemaValidation ?? "COMPATIBLE"
-    : "STRICT";
+  let validationMode: SchemaValidation = schemaValidation ?? "COMPATIBLE";
   setSchemaValidationMode(schema, validationMode);
 
   try {
-    if (!schemaValidation && experiments.isEnabled("fdccompatiblemode")) {
+    if (!schemaValidation) {
       logLabeledBullet("dataconnect", `generating required schema changes...`);
     }
     await upsertSchema(schema, /** validateOnly=*/ true);
@@ -78,7 +75,7 @@ export async function diffSchema(
   }
 
   // If the validation mode is unset, then we also surface any additional optional STRICT diffs.
-  if (experiments.isEnabled("fdccompatiblemode") && !schemaValidation) {
+  if (!schemaValidation) {
     validationMode = "STRICT";
     setSchemaValidationMode(schema, validationMode);
     try {
@@ -127,9 +124,7 @@ export async function migrateSchema(args: {
   let diffs: Diff[] = [];
 
   // If the schema validation mode is unset, we surface both STRICT and COMPATIBLE mode diffs, starting with COMPATIBLE.
-  let validationMode: SchemaValidation = experiments.isEnabled("fdccompatiblemode")
-    ? schemaValidation ?? "COMPATIBLE"
-    : "STRICT";
+  let validationMode: SchemaValidation = schemaValidation ?? "COMPATIBLE";
   setSchemaValidationMode(schema, validationMode);
 
   try {
@@ -183,7 +178,7 @@ export async function migrateSchema(args: {
   }
 
   // If the validation mode is unset, then we also surface any additional optional STRICT diffs.
-  if (experiments.isEnabled("fdccompatiblemode") && !schemaValidation) {
+  if (!schemaValidation) {
     validationMode = "STRICT";
     setSchemaValidationMode(schema, validationMode);
     try {
@@ -274,11 +269,9 @@ function diffsEqual(x: Diff[], y: Diff[]): boolean {
 }
 
 function setSchemaValidationMode(schema: Schema, schemaValidation: SchemaValidation) {
-  if (experiments.isEnabled("fdccompatiblemode")) {
-    const postgresDatasource = schema.datasources.find((d) => d.postgresql);
-    if (postgresDatasource?.postgresql) {
-      postgresDatasource.postgresql.schemaValidation = schemaValidation;
-    }
+  const postgresDatasource = schema.datasources.find((d) => d.postgresql);
+  if (postgresDatasource?.postgresql) {
+    postgresDatasource.postgresql.schemaValidation = schemaValidation;
   }
 }
 
diff --git a/src/experiments.ts b/src/experiments.ts
index 644fd2b5e78..334b75176ab 100644
--- a/src/experiments.ts
+++ b/src/experiments.ts
@@ -137,13 +137,6 @@ export const ALL_EXPERIMENTS = experiments({
     default: true,
     public: false,
   },
-
-  fdccompatiblemode: {
-    shortDescription: "Enable Data Connect schema migrations in Compatible Mode",
-    fullDescription: "Enable Data Connect schema migrations in Compatible Mode",
-    default: true,
-    public: false,
-  },
 });
 
 export type ExperimentName = keyof typeof ALL_EXPERIMENTS;
diff --git a/src/init/features/dataconnect/index.ts b/src/init/features/dataconnect/index.ts
index fdb68825286..20546eb3851 100644
--- a/src/init/features/dataconnect/index.ts
+++ b/src/init/features/dataconnect/index.ts
@@ -8,7 +8,6 @@ import { provisionCloudSql } from "../../../dataconnect/provisionCloudSql";
 import { checkFreeTrialInstanceUsed, upgradeInstructions } from "../../../dataconnect/freeTrial";
 import * as cloudsql from "../../../gcp/cloudsql/cloudsqladmin";
 import { ensureApis, ensureSparkApis } from "../../../dataconnect/ensureApis";
-import * as experiments from "../../../experiments";
 import {
   listLocations,
   listAllServices,
@@ -25,9 +24,6 @@ import * as sdk from "./sdk";
 import { getPlatformFromFolder } from "../../../dataconnect/fileUtils";
 
 const DATACONNECT_YAML_TEMPLATE = readTemplateSync("init/dataconnect/dataconnect.yaml");
-const DATACONNECT_YAML_COMPAT_EXPERIMENT_TEMPLATE = readTemplateSync(
-  "init/dataconnect/dataconnect-fdccompatiblemode.yaml",
-);
 const CONNECTOR_YAML_TEMPLATE = readTemplateSync("init/dataconnect/connector.yaml");
 const SCHEMA_TEMPLATE = readTemplateSync("init/dataconnect/schema.gql");
 const QUERIES_TEMPLATE = readTemplateSync("init/dataconnect/queries.gql");
@@ -239,9 +235,7 @@ function subDataconnectYamlValues(replacementValues: {
     connectorDirs: "__connectorDirs__",
     locationId: "__location__",
   };
-  let replaced = experiments.isEnabled("fdccompatiblemode")
-    ? DATACONNECT_YAML_COMPAT_EXPERIMENT_TEMPLATE
-    : DATACONNECT_YAML_TEMPLATE;
+  let replaced = DATACONNECT_YAML_TEMPLATE;
   for (const [k, v] of Object.entries(replacementValues)) {
     replaced = replaced.replace(replacements[k], JSON.stringify(v));
   }
diff --git a/templates/init/dataconnect/dataconnect-fdccompatiblemode.yaml b/templates/init/dataconnect/dataconnect-fdccompatiblemode.yaml
deleted file mode 100644
index 1529d097f8d..00000000000
--- a/templates/init/dataconnect/dataconnect-fdccompatiblemode.yaml
+++ /dev/null
@@ -1,12 +0,0 @@
-specVersion: "v1beta"
-serviceId: __serviceId__
-location: __location__
-schema:
-  source: "./schema"
-  datasource:
-    postgresql:
-      database: __cloudSqlDatabase__
-      cloudSql:
-        instanceId: __cloudSqlInstanceId__
-      # schemaValidation: "COMPATIBLE"
-connectorDirs: __connectorDirs__
diff --git a/templates/init/dataconnect/dataconnect.yaml b/templates/init/dataconnect/dataconnect.yaml
index f798ef9410f..1529d097f8d 100644
--- a/templates/init/dataconnect/dataconnect.yaml
+++ b/templates/init/dataconnect/dataconnect.yaml
@@ -8,4 +8,5 @@ schema:
       database: __cloudSqlDatabase__
       cloudSql:
         instanceId: __cloudSqlInstanceId__
+      # schemaValidation: "COMPATIBLE"
 connectorDirs: __connectorDirs__