diff --git a/Device.md b/Device.md
index 09db6f2..c749bba 100644
--- a/Device.md
+++ b/Device.md
@@ -46,6 +46,7 @@ It’s strongly recommended that a Harp Device acting as peripheral should conti
 |R\_SERIAL\_NUMBER|No|No|U16|013|b)|Unique serial number of the device|Optional|
 |R\_CLOCK\_CONFIG|No|No|U8|014|b)|Synchronization clock configuration|Optional|
 |R\_TIMESTAMP\_OFFSET|No|No|U8|015|b)|Adds an offset if user updates the Timestamp|Optional|
+|R\_UUID|No|YES|U8|016|b)|Stores an universally unique identifier (UUID) |Optional|
 
 ||a) These values are stored during factory process and are persistent, i.e., they cannot be changed by the user.<br>b) Check register notes on the specific register explanation<br>c) Only parts of the functionality is mandatory. Check register notes on the explanation.|
 | :- | :- |
@@ -322,6 +323,12 @@ gantt
 This number should be unique for each unit of the same Device ID.
 To write to this register a two-step write command is needed. First, write the value `0xFFFF`, and then the desired serial number (as a `U16`). The device will reset after the second write command is received.
 
+> **Note**
+>
+> This register is to be deprecated in the near future in favor of the `R_UUID` register. Until then, we strongly encourage the value of this register to duplicate the first two bytes of `R_UUID`.
+
+
+
 #### **`R_CLOCK_CONFIG` (U8) – Synchronization clock configuration**
 
 Address: `014`
@@ -407,6 +414,13 @@ gantt
 ```
 When the value of this register is above 0 (zero), the device’s timestamp will be offset by this amount. The register is sensitive to 500 microsecond increments. This register is non-volatile.
 
+#### **`R_UUID` (16 Bytes) – Universally Unique Identifier**
+
+Address: `016`
+
+An array of 16 bytes that should contain a UUID (Universally Unique Identifier) of the current device. This register is non-volatile and should be read-only.
+
+
 ## Release notes:
 
 - v0.2
@@ -452,4 +466,8 @@ When the value of this register is above 0 (zero), the device’s timestamp will
 
 - v1.9.1
   * Remove table of contents to avoid redundancy with doc generators.
-  * Minor improvements to clarity of introduction.
\ No newline at end of file
+  * Minor improvements to clarity of introduction.
+
+- v1.9.2
+  * Add `UUID` register
+  * Add future deprecation warning to `R_SERIAL_NUMBER` register.