diff --git a/radio/aidl/Android.bp b/radio/aidl/Android.bp
index 8911aea..9dbe09a 100644
--- a/radio/aidl/Android.bp
+++ b/radio/aidl/Android.bp
@@ -36,7 +36,7 @@
     host_supported: true,
     srcs: ["android/hardware/radio/config/*.aidl"],
     stability: "vintf",
-    imports: ["android.hardware.radio-V1"],
+    imports: ["android.hardware.radio-V2"],
     backend: {
         cpp: {
             enabled: true,
@@ -60,7 +60,7 @@
     host_supported: true,
     srcs: ["android/hardware/radio/data/*.aidl"],
     stability: "vintf",
-    imports: ["android.hardware.radio-V1"],
+    imports: ["android.hardware.radio-V2"],
     backend: {
         cpp: {
             enabled: true,
@@ -84,7 +84,7 @@
     host_supported: true,
     srcs: ["android/hardware/radio/messaging/*.aidl"],
     stability: "vintf",
-    imports: ["android.hardware.radio-V1"],
+    imports: ["android.hardware.radio-V2"],
     backend: {
         cpp: {
             enabled: true,
@@ -108,7 +108,7 @@
     host_supported: true,
     srcs: ["android/hardware/radio/modem/*.aidl"],
     stability: "vintf",
-    imports: ["android.hardware.radio-V1"],
+    imports: ["android.hardware.radio-V2"],
     backend: {
         cpp: {
             enabled: true,
@@ -132,7 +132,7 @@
     host_supported: true,
     srcs: ["android/hardware/radio/network/*.aidl"],
     stability: "vintf",
-    imports: ["android.hardware.radio-V1"],
+    imports: ["android.hardware.radio-V2"],
     backend: {
         cpp: {
             enabled: true,
@@ -157,8 +157,8 @@
     srcs: ["android/hardware/radio/sim/*.aidl"],
     stability: "vintf",
     imports: [
-        "android.hardware.radio-V1",
-        "android.hardware.radio.config",
+        "android.hardware.radio-V2",
+        "android.hardware.radio.config-V2",
     ],
     backend: {
         cpp: {
@@ -186,7 +186,7 @@
     host_supported: true,
     srcs: ["android/hardware/radio/voice/*.aidl"],
     stability: "vintf",
-    imports: ["android.hardware.radio-V1"],
+    imports: ["android.hardware.radio-V2"],
     backend: {
         cpp: {
             enabled: true,
@@ -209,8 +209,10 @@
     vendor_available: true,
     srcs: ["android/hardware/radio/ims/media/*.aidl"],
     stability: "vintf",
-    imports: ["android.hardware.radio-V1",
-              "android.hardware.radio.data-V1"],
+    imports: [
+        "android.hardware.radio-V2",
+        "android.hardware.radio.data-V2",
+    ],
     backend: {
         cpp: {
             enabled: false,
@@ -226,7 +228,7 @@
     vendor_available: true,
     srcs: ["android/hardware/radio/ims/*.aidl"],
     stability: "vintf",
-    imports: ["android.hardware.radio-V1"],
+    imports: ["android.hardware.radio-V2"],
     backend: {
         cpp: {
             enabled: false,
@@ -236,4 +238,3 @@
         },
     },
 }
-
diff --git a/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/RadioAccessFamily.aidl b/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/RadioAccessFamily.aidl
index ecc2a9b..afc4f4e 100644
--- a/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/RadioAccessFamily.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/RadioAccessFamily.aidl
@@ -53,6 +53,9 @@
   GSM = 65536,
   TD_SCDMA = 131072,
   IWLAN = 262144,
+  /**
+   * @deprecated use LTE instead.
+   */
   LTE_CA = 524288,
   NR = 1048576,
 }
diff --git a/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/RadioTechnology.aidl b/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/RadioTechnology.aidl
index 9dad0a4..7060469 100644
--- a/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/RadioTechnology.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio/current/android/hardware/radio/RadioTechnology.aidl
@@ -53,6 +53,9 @@
   GSM = 16,
   TD_SCDMA = 17,
   IWLAN = 18,
+  /**
+   * @deprecated use LTE instead and indicate carrier aggregation through multiple physical channel configurations in IRadioNetwork::currentPhysicalChannelConfigs.
+   */
   LTE_CA = 19,
   NR = 20,
 }
diff --git a/radio/aidl/android/hardware/radio/RadioAccessFamily.aidl b/radio/aidl/android/hardware/radio/RadioAccessFamily.aidl
index 6cd0a95..edf33ba 100644
--- a/radio/aidl/android/hardware/radio/RadioAccessFamily.aidl
+++ b/radio/aidl/android/hardware/radio/RadioAccessFamily.aidl
@@ -41,6 +41,7 @@
     GSM = 1 << RadioTechnology.GSM,
     TD_SCDMA = 1 << RadioTechnology.TD_SCDMA,
     IWLAN = 1 << RadioTechnology.IWLAN,
+    /** @deprecated use LTE instead. */
     LTE_CA = 1 << RadioTechnology.LTE_CA,
     /**
      * 5G NR. This is only use in 5G Standalone mode.
diff --git a/radio/aidl/android/hardware/radio/RadioTechnology.aidl b/radio/aidl/android/hardware/radio/RadioTechnology.aidl
index 917cb16..4b51152 100644
--- a/radio/aidl/android/hardware/radio/RadioTechnology.aidl
+++ b/radio/aidl/android/hardware/radio/RadioTechnology.aidl
@@ -45,6 +45,10 @@
     GSM,
     TD_SCDMA,
     IWLAN,
+    /**
+     * @deprecated use LTE instead and indicate carrier aggregation through multiple
+     * physical channel configurations in IRadioNetwork::currentPhysicalChannelConfigs.
+     */
     LTE_CA,
     /**
      * 5G NR. This is only used in 5G Standalone mode.
diff --git a/radio/aidl/android/hardware/radio/network/RegStateResult.aidl b/radio/aidl/android/hardware/radio/network/RegStateResult.aidl
index 3d96b8c..f1d2972 100644
--- a/radio/aidl/android/hardware/radio/network/RegStateResult.aidl
+++ b/radio/aidl/android/hardware/radio/network/RegStateResult.aidl
@@ -33,9 +33,9 @@
      */
     RegState regState;
     /**
-     * Indicates the radio technology (except LTE_CA, which is no longer a valid value), which
-     * must not be UNKNOWN if regState is REG_HOME, REG_ROAMING, NOT_REG_MT_NOT_SEARCHING_OP_EM,
-     * NOT_REG_MT_SEARCHING_OP_EM, REG_DENIED_EM, or UNKNOWN_EM.
+     * Indicates the radio technology, which must not be UNKNOWN if regState is REG_HOME,
+     * REG_ROAMING, NOT_REG_MT_NOT_SEARCHING_OP_EM, NOT_REG_MT_SEARCHING_OP_EM, REG_DENIED_EM,
+     * or UNKNOWN_EM.
      * When the device is on carrier aggregation, vendor RIL service must properly report multiple
      * PhysicalChannelConfig elements through IRadioNetwork::currentPhysicalChannelConfigs.
      */
diff --git a/radio/aidl/compat/libradiocompat/Android.bp b/radio/aidl/compat/libradiocompat/Android.bp
index 557e461..c40ca30 100644
--- a/radio/aidl/compat/libradiocompat/Android.bp
+++ b/radio/aidl/compat/libradiocompat/Android.bp
@@ -31,18 +31,18 @@
         "-DANDROID_UTILS_REF_BASE_DISABLE_IMPLICIT_CONSTRUCTION",
     ],
     shared_libs: [
-        "android.hardware.radio.config-V1-ndk",
+        "android.hardware.radio.config-V2-ndk",
         "android.hardware.radio.config@1.0",
         "android.hardware.radio.config@1.1",
         "android.hardware.radio.config@1.2",
         "android.hardware.radio.config@1.3",
-        "android.hardware.radio.data-V1-ndk",
+        "android.hardware.radio.data-V2-ndk",
         "android.hardware.radio.ims-V1-ndk",
-        "android.hardware.radio.messaging-V1-ndk",
+        "android.hardware.radio.messaging-V2-ndk",
         "android.hardware.radio.modem-V2-ndk",
         "android.hardware.radio.network-V2-ndk",
-        "android.hardware.radio.sim-V1-ndk",
-        "android.hardware.radio.voice-V1-ndk",
+        "android.hardware.radio.sim-V2-ndk",
+        "android.hardware.radio.voice-V2-ndk",
         "android.hardware.radio@1.0",
         "android.hardware.radio@1.1",
         "android.hardware.radio@1.2",
diff --git a/radio/aidl/compat/service/Android.bp b/radio/aidl/compat/service/Android.bp
index 692f15a..7a48da2 100644
--- a/radio/aidl/compat/service/Android.bp
+++ b/radio/aidl/compat/service/Android.bp
@@ -34,18 +34,18 @@
     ],
     shared_libs: [
         "android.hardware.radio-library.compat",
-        "android.hardware.radio.config-V1-ndk",
+        "android.hardware.radio.config-V2-ndk",
         "android.hardware.radio.config@1.0",
         "android.hardware.radio.config@1.1",
         "android.hardware.radio.config@1.2",
         "android.hardware.radio.config@1.3",
-        "android.hardware.radio.data-V1-ndk",
+        "android.hardware.radio.data-V2-ndk",
         "android.hardware.radio.ims-V1-ndk",
-        "android.hardware.radio.messaging-V1-ndk",
+        "android.hardware.radio.messaging-V2-ndk",
         "android.hardware.radio.modem-V2-ndk",
         "android.hardware.radio.network-V2-ndk",
-        "android.hardware.radio.sim-V1-ndk",
-        "android.hardware.radio.voice-V1-ndk",
+        "android.hardware.radio.sim-V2-ndk",
+        "android.hardware.radio.voice-V2-ndk",
         "android.hardware.radio@1.0",
         "android.hardware.radio@1.1",
         "android.hardware.radio@1.2",
diff --git a/radio/aidl/vts/Android.bp b/radio/aidl/vts/Android.bp
index 4df54f7..5a0dbd0 100644
--- a/radio/aidl/vts/Android.bp
+++ b/radio/aidl/vts/Android.bp
@@ -66,15 +66,15 @@
         "libvintf",
     ],
     static_libs: [
-        "android.hardware.radio-V1-ndk",
-        "android.hardware.radio.config-V1-ndk",
-        "android.hardware.radio.data-V1-ndk",
+        "android.hardware.radio-V2-ndk",
+        "android.hardware.radio.config-V2-ndk",
+        "android.hardware.radio.data-V2-ndk",
         "android.hardware.radio.ims-V1-ndk",
-        "android.hardware.radio.messaging-V1-ndk",
+        "android.hardware.radio.messaging-V2-ndk",
         "android.hardware.radio.modem-V2-ndk",
         "android.hardware.radio.network-V2-ndk",
-        "android.hardware.radio.sim-V1-ndk",
-        "android.hardware.radio.voice-V1-ndk",
+        "android.hardware.radio.sim-V2-ndk",
+        "android.hardware.radio.voice-V2-ndk",
     ],
     test_suites: [
         "general-tests",
diff --git a/radio/aidl/vts/radio_network_test.cpp b/radio/aidl/vts/radio_network_test.cpp
index 31f4aca..bd81b8a 100644
--- a/radio/aidl/vts/radio_network_test.cpp
+++ b/radio/aidl/vts/radio_network_test.cpp
@@ -1501,7 +1501,7 @@
     RadioTechnology rat = radioRsp_network->dataRegResp.rat;
 
     // TODO: add logic for cdmaInfo
-    if (rat == RadioTechnology::LTE || rat == RadioTechnology::LTE_CA) {
+    if (rat == RadioTechnology::LTE) {
         ASSERT_EQ(info.getTag(), AccessTechnologySpecificInfo::eutranInfo);
     } else if (rat == RadioTechnology::NR) {
         ASSERT_TRUE(info.getTag() == AccessTechnologySpecificInfo::ngranNrVopsInfo);