diff --git a/aconfig/codegen/cc_aconfig_library.go b/aconfig/codegen/cc_aconfig_library.go
index 12c2dea3a..8df353d4d 100644
--- a/aconfig/codegen/cc_aconfig_library.go
+++ b/aconfig/codegen/cc_aconfig_library.go
@@ -40,6 +40,7 @@ type CcAconfigLibraryProperties struct {
 	// default mode is "production", the other accepted modes are:
 	// "test": to generate test mode version of the library
 	// "exported": to generate exported mode version of the library
+	// "force-read-only": to generate force-read-only mode version of the library
 	// an error will be thrown if the mode is not supported
 	Mode *string
 }
diff --git a/aconfig/codegen/cc_aconfig_library_test.go b/aconfig/codegen/cc_aconfig_library_test.go
index 3de46267d..c5ff6a18d 100644
--- a/aconfig/codegen/cc_aconfig_library_test.go
+++ b/aconfig/codegen/cc_aconfig_library_test.go
@@ -29,6 +29,7 @@ var ccCodegenModeTestData = []struct {
 	{"mode: `production`,", "production"},
 	{"mode: `test`,", "test"},
 	{"mode: `exported`,", "exported"},
+	{"mode: `force-read-only`,", "force-read-only"},
 }
 
 func TestCCCodegenMode(t *testing.T) {
diff --git a/aconfig/codegen/java_aconfig_library.go b/aconfig/codegen/java_aconfig_library.go
index c027815db..e6817e0ae 100644
--- a/aconfig/codegen/java_aconfig_library.go
+++ b/aconfig/codegen/java_aconfig_library.go
@@ -30,7 +30,7 @@ type declarationsTagType struct {
 
 var declarationsTag = declarationsTagType{}
 
-var aconfigSupportedModes = []string{"production", "test", "exported"}
+var aconfigSupportedModes = []string{"production", "test", "exported", "force-read-only"}
 
 type JavaAconfigDeclarationsLibraryProperties struct {
 	// name of the aconfig_declarations module to generate a library for
@@ -39,6 +39,7 @@ type JavaAconfigDeclarationsLibraryProperties struct {
 	// default mode is "production", the other accepted modes are:
 	// "test": to generate test mode version of the library
 	// "exported": to generate exported mode version of the library
+	// "force-read-only": to generate force-read-only mode version of the library
 	// an error will be thrown if the mode is not supported
 	Mode *string
 }
diff --git a/aconfig/codegen/java_aconfig_library_test.go b/aconfig/codegen/java_aconfig_library_test.go
index 2523abcbc..8d54b5b36 100644
--- a/aconfig/codegen/java_aconfig_library_test.go
+++ b/aconfig/codegen/java_aconfig_library_test.go
@@ -227,6 +227,10 @@ func TestExportedMode(t *testing.T) {
 	testCodegenMode(t, "mode: `exported`,", "exported")
 }
 
+func TestForceReadOnlyMode(t *testing.T) {
+	testCodegenMode(t, "mode: `force-read-only`,", "force-read-only")
+}
+
 func TestUnsupportedMode(t *testing.T) {
 	testCodegenModeWithError(t, "mode: `unsupported`,", "mode: \"unsupported\" is not a supported mode")
 }
diff --git a/aconfig/codegen/rust_aconfig_library.go b/aconfig/codegen/rust_aconfig_library.go
index 73b6fece2..2ab54b6ab 100644
--- a/aconfig/codegen/rust_aconfig_library.go
+++ b/aconfig/codegen/rust_aconfig_library.go
@@ -23,6 +23,7 @@ type RustAconfigLibraryProperties struct {
 	// default mode is "production", the other accepted modes are:
 	// "test": to generate test mode version of the library
 	// "exported": to generate exported mode version of the library
+	// "force-read-only": to generate force-read-only mode version of the library
 	// an error will be thrown if the mode is not supported
 	Mode *string
 }
diff --git a/aconfig/codegen/rust_aconfig_library_test.go b/aconfig/codegen/rust_aconfig_library_test.go
index c09f70149..60bc9f747 100644
--- a/aconfig/codegen/rust_aconfig_library_test.go
+++ b/aconfig/codegen/rust_aconfig_library_test.go
@@ -72,6 +72,7 @@ var rustCodegenModeTestData = []struct {
 	{"mode: `production`,", "production"},
 	{"mode: `test`,", "test"},
 	{"mode: `exported`,", "exported"},
+	{"mode: `force-read-only`,", "force-read-only"},
 }
 
 func TestRustCodegenMode(t *testing.T) {