diff --git a/src/bin/constants.ts b/src/bin/constants.ts
index a3ab98e3..279e773a 100644
--- a/src/bin/constants.ts
+++ b/src/bin/constants.ts
@@ -6,6 +6,7 @@ export const resolvedViteConfigJsonBasename = ".keycloakifyViteConfig.json";
 export const basenameOfTheKeycloakifyResourcesDir = "build";
 
 export const themeTypes = ["login", "account"] as const;
+export const retrocompatPostfix = "_retrocompat";
 export const accountV1ThemeName = "account-v1";
 
 export type ThemeType = (typeof themeTypes)[number];
diff --git a/src/bin/keycloakify/buildOptions/buildOptions.ts b/src/bin/keycloakify/buildOptions/buildOptions.ts
index 4dab5750..bb462d59 100644
--- a/src/bin/keycloakify/buildOptions/buildOptions.ts
+++ b/src/bin/keycloakify/buildOptions/buildOptions.ts
@@ -27,6 +27,7 @@ export type BuildOptions = {
      * In this case the urlPathname will be "/my-app/" */
     urlPathname: string | undefined;
     assetsDirPath: string;
+    doBuildRetrocompatAccountTheme: boolean;
 };
 
 export function readBuildOptions(params: { reactAppRootDirPath: string; processArgv: string[] }): BuildOptions {
@@ -178,6 +179,7 @@ export function readBuildOptions(params: { reactAppRootDirPath: string; processA
             }
 
             return pathJoin(reactAppBuildDirPath, resolvedViteConfig.assetsDir);
-        })()
+        })(),
+        "doBuildRetrocompatAccountTheme": parsedPackageJson.keycloakify?.doBuildRetrocompatAccountTheme ?? true
     };
 }
diff --git a/src/bin/keycloakify/buildOptions/parsedPackageJson.ts b/src/bin/keycloakify/buildOptions/parsedPackageJson.ts
index e21baf2a..4b2aafff 100644
--- a/src/bin/keycloakify/buildOptions/parsedPackageJson.ts
+++ b/src/bin/keycloakify/buildOptions/parsedPackageJson.ts
@@ -17,6 +17,7 @@ export type ParsedPackageJson = {
         reactAppBuildDirPath?: string;
         keycloakifyBuildDirPath?: string;
         themeName?: string | string[];
+        doBuildRetrocompatAccountTheme?: boolean;
     };
 };
 
@@ -33,7 +34,8 @@ const zParsedPackageJson = z.object({
             "loginThemeResourcesFromKeycloakVersion": z.string().optional(),
             "reactAppBuildDirPath": z.string().optional(),
             "keycloakifyBuildDirPath": z.string().optional(),
-            "themeName": z.union([z.string(), z.array(z.string())]).optional()
+            "themeName": z.union([z.string(), z.array(z.string())]).optional(),
+            "doBuildRetrocompatAccountTheme": z.boolean().optional()
         })
         .optional()
 });
diff --git a/src/bin/keycloakify/generateJavaStackFiles/generateJavaStackFiles.ts b/src/bin/keycloakify/generateJavaStackFiles/generateJavaStackFiles.ts
index 845f2c3f..b6d93f29 100644
--- a/src/bin/keycloakify/generateJavaStackFiles/generateJavaStackFiles.ts
+++ b/src/bin/keycloakify/generateJavaStackFiles/generateJavaStackFiles.ts
@@ -3,7 +3,7 @@ import { join as pathJoin, dirname as pathDirname } from "path";
 import { assert } from "tsafe/assert";
 import { Reflect } from "tsafe/Reflect";
 import type { BuildOptions } from "../buildOptions";
-import { type ThemeType, accountV1ThemeName } from "../../constants";
+import { type ThemeType, retrocompatPostfix, accountV1ThemeName } from "../../constants";
 import { bringInAccountV1 } from "./bringInAccountV1";
 
 type BuildOptionsLike = {
@@ -13,6 +13,7 @@ type BuildOptionsLike = {
     cacheDirPath: string;
     keycloakifyBuildDirPath: string;
     themeNames: string[];
+    doBuildRetrocompatAccountTheme: boolean;
 };
 
 {
@@ -113,7 +114,15 @@ export async function generateJavaStackFiles(params: {
                                         "types": Object.entries(implementedThemeTypes)
                                             .filter(([, isImplemented]) => isImplemented)
                                             .map(([themeType]) => themeType)
-                                    }
+                                    },
+                                    ...(!implementedThemeTypes.account || !buildOptions.doBuildRetrocompatAccountTheme
+                                        ? []
+                                        : [
+                                              {
+                                                  "name": `${themeName}${retrocompatPostfix}`,
+                                                  "types": ["account"]
+                                              }
+                                          ])
                                 ])
                                 .flat()
                         ]
diff --git a/src/bin/keycloakify/generateTheme/generateTheme.ts b/src/bin/keycloakify/generateTheme/generateTheme.ts
index 72ddae7e..b9b95a74 100644
--- a/src/bin/keycloakify/generateTheme/generateTheme.ts
+++ b/src/bin/keycloakify/generateTheme/generateTheme.ts
@@ -1,6 +1,6 @@
 import { transformCodebase } from "../../tools/transformCodebase";
 import * as fs from "fs";
-import { join as pathJoin, resolve as pathResolve } from "path";
+import { join as pathJoin, basename as pathBasename, resolve as pathResolve } from "path";
 import { replaceImportsInJsCode } from "../replacers/replaceImportsInJsCode";
 import { replaceImportsInCssCode } from "../replacers/replaceImportsInCssCode";
 import { generateFtlFilesCodeFactory, loginThemePageIds, accountThemePageIds } from "../generateFtl";
@@ -9,6 +9,7 @@ import {
     type ThemeType,
     lastKeycloakVersionWithAccountV1,
     keycloak_resources,
+    retrocompatPostfix,
     accountV1ThemeName,
     basenameOfTheKeycloakifyResourcesDir
 } from "../../constants";
@@ -31,6 +32,7 @@ export type BuildOptionsLike = {
     cacheDirPath: string;
     assetsDirPath: string;
     urlPathname: string | undefined;
+    doBuildRetrocompatAccountTheme: boolean;
 };
 
 assert<BuildOptions extends BuildOptionsLike ? true : false>();
@@ -44,9 +46,17 @@ export async function generateTheme(params: {
 }): Promise<void> {
     const { themeName, themeSrcDirPath, keycloakifySrcDirPath, buildOptions, keycloakifyVersion } = params;
 
-    const getThemeTypeDirPath = (params: { themeType: ThemeType | "email" }) => {
-        const { themeType } = params;
-        return pathJoin(buildOptions.keycloakifyBuildDirPath, "src", "main", "resources", "theme", themeName, themeType);
+    const getThemeTypeDirPath = (params: { themeType: ThemeType | "email"; isRetrocompat?: true }) => {
+        const { themeType, isRetrocompat = false } = params;
+        return pathJoin(
+            buildOptions.keycloakifyBuildDirPath,
+            "src",
+            "main",
+            "resources",
+            "theme",
+            `${themeName}${isRetrocompat ? retrocompatPostfix : ""}`,
+            themeType
+        );
     };
 
     let allCssGlobalsToDefine: Record<string, string> = {};
@@ -197,6 +207,25 @@ export async function generateTheme(params: {
                 "utf8"
             )
         );
+
+        if (themeType === "account" && buildOptions.doBuildRetrocompatAccountTheme) {
+            transformCodebase({
+                "srcDirPath": themeTypeDirPath,
+                "destDirPath": getThemeTypeDirPath({ themeType, "isRetrocompat": true }),
+                "transformSourceCode": ({ filePath, sourceCode }) => {
+                    if (pathBasename(filePath) === "theme.properties") {
+                        return {
+                            "modifiedSourceCode": Buffer.from(
+                                sourceCode.toString("utf8").replace(`parent=${accountV1ThemeName}`, "parent=keycloak"),
+                                "utf8"
+                            )
+                        };
+                    }
+
+                    return { "modifiedSourceCode": sourceCode };
+                }
+            });
+        }
     }
 
     email: {
diff --git a/src/bin/promptKeycloakVersion.ts b/src/bin/promptKeycloakVersion.ts
index 276dc90f..63e7b25c 100644
--- a/src/bin/promptKeycloakVersion.ts
+++ b/src/bin/promptKeycloakVersion.ts
@@ -1,6 +1,7 @@
 import { getLatestsSemVersionedTagFactory } from "./tools/octokit-addons/getLatestsSemVersionedTag";
 import { Octokit } from "@octokit/rest";
 import cliSelect from "cli-select";
+import { lastKeycloakVersionWithAccountV1 } from "./constants";
 
 export async function promptKeycloakVersion() {
     const { getLatestsSemVersionedTag } = (() => {
@@ -26,6 +27,7 @@ export async function promptKeycloakVersion() {
             "owner": "keycloak",
             "repo": "keycloak"
         }).then(arr => arr.map(({ tag }) => tag))),
+        lastKeycloakVersionWithAccountV1,
         "11.0.3"
     ];