diff --git a/schema/core.yml b/schema/core.yml
index e7a1cbd..7a60fe8 100644
--- a/schema/core.yml
+++ b/schema/core.yml
@@ -11,36 +11,43 @@ registers:
     type: U8
     access: Read
     description: Specifies the major hardware version of the device.
+    deprecated: true
   HardwareVersionLow:
     address: 2
     type: U8
     access: Read
     description: Specifies the minor hardware version of the device.
+    deprecated: true
   AssemblyVersion:
     address: 3
     type: U8
     access: Read
     description: Specifies the version of the assembled components in the device.
+    deprecated: true
   CoreVersionHigh:
     address: 4
     type: U8
     access: Read
     description: Specifies the major version of the Harp core implemented by the device.
+    deprecated: true
   CoreVersionLow:
     address: 5
     type: U8
     access: Read
     description: Specifies the minor version of the Harp core implemented by the device.
+    deprecated: true
   FirmwareVersionHigh:
     address: 6
     type: U8
     access: Read
     description: Specifies the major version of the Harp core implemented by the device.
+    deprecated: true
   FirmwareVersionLow:
     address: 7
     type: U8
     access: Read
     description: Specifies the minor version of the Harp core implemented by the device.
+    deprecated: true
   TimestampSeconds:
     address: 8
     type: U32
@@ -100,12 +107,79 @@ registers:
     type: U16
     access: Write
     description: Specifies the unique serial number of the device.
+    deprecated: true
   ClockConfiguration:
     address: 14
     type: U8
     access: Write
     maskType: ClockConfigurationFlags
     description: Specifies the configuration for the device synchronization clock.
+  TimestampOffset:
+    address: 15
+    type: U8
+    access: Write
+    description: Configures an offset for Timestamp updates.
+    deprecated: true
+  UID:
+    address: 16
+    type: U8
+    access: Read
+    length: 16
+    description: Specifies the unique identifier of the device.
+  Tag:
+    address: 17
+    type: U8
+    access: Write
+    length: 8
+    description: Stores a user-defined tag for the device.
+  Heartbeat:
+    address: 18
+    type: U16
+    access: Event
+    maskType: HeartbeatFlags
+    description: Stores the number of seconds since the device was last reset.
+  Version:
+    address: 19
+    type: U8
+    access: Read
+    length: 32
+    description: Specifies the semantic version of the different device components.
+    payloadSpec:
+      ProtocolMajor:
+        offset: 0
+        description: Specifies the major version of the Harp protocol implementation.
+      ProtocolMinor:
+        offset: 1
+        description: Specifies the minor version of the Harp protocol implementation.
+      ProtocolPatch:
+        offset: 2
+        description: Specifies the patch version of the Harp protocol implementation.
+      FirmwareMajor:
+        offset: 3
+        description: Specifies the major version of the firmware.
+      FirmwareMinor:
+        offset: 4
+        description: Specifies the minor version of the firmware.
+      FirmwarePatch:
+        offset: 5
+        description: Specifies the patch version of the firmware.
+      HardwareMajor:
+        offset: 6
+        description: Specifies the major version of the hardware.
+      HardwareMinor:
+        offset: 7
+        description: Specifies the minor version of the hardware.
+      HardwarePatch:
+        offset: 8
+        description: Specifies the patch version of the hardware.
+      SdkId:
+        offset: 9
+        description: Specifies the microcontroller SDK used to implement the device.
+        mask: 0xFFFFFF
+      InterfaceHash:
+        offset: 12
+        description: Specifies the SHA-1 hash value of the device interface contract.
+        mask: 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF
 groupMasks:
   OperationMode:
     description: Specifies the operation mode of the device.
@@ -132,6 +206,7 @@ bitMasks:
       RestoreEeprom: {value: 0x2, description: The device will boot and restore all the registers to the values stored in non-volatile memory.}
       Save: {value: 0x4, description: The device will boot and save all the current register values to non-volatile memory.}
       RestoreName: {value: 0x8, description: The device will boot with the default device name.}
+      UpdateFirmware: {value: 0x20, description: The device will enter firmware update mode.}
       BootFromDefault: {value: 0x40, description: Specifies that the device has booted from default factory values.}
       BootFromEeprom: {value: 0x80, description: Specifies that the device has booted from non-volatile values stored in EEPROM.}
   ClockConfigurationFlags:
@@ -143,4 +218,9 @@ bitMasks:
       RepeaterCapability: {value: 0x8, description: Specifies the device has the capability to repeat the clock synchronization signal to the clock output connector.}
       GeneratorCapability: {value: 0x10, description: Specifies the device has the capability to generate the clock synchronization signal to the clock output connector.}
       ClockUnlock: {value: 0x40, description: The device will unlock the timestamp register counter and will accept commands to set new timestamp values.}
-      ClockLock: {value: 0x80, description: The device will lock the timestamp register counter and will not accept commands to set new timestamp values.}
\ No newline at end of file
+      ClockLock: {value: 0x80, description: The device will lock the timestamp register counter and will not accept commands to set new timestamp values.}
+  HeartbeatFlags:
+    description: Specifies configuration flags for the device heartbeat event.
+    bits:
+      IsActive: {value: 0x1, description: "The device is in Active mode."}
+      IsSynchronized: {value: 0x2, description: "The device is synchronized to an external Harp clock generator. The value is 1 if the device is itself a clock generator."}
\ No newline at end of file
diff --git a/schema/registers.json b/schema/registers.json
index ad1913f..3787c9c 100644
--- a/schema/registers.json
+++ b/schema/registers.json
@@ -168,6 +168,10 @@
                     "type": "string",
                     "enum": ["public", "private"]
                 },
+                "deprecated": {
+                    "description": "Specifies whether the register function is deprecated.",
+                    "type": "boolean"
+                },
                 "volatile": {
                     "description": "Specifies whether register values can be saved in non-volatile memory.",
                     "type": "boolean"