diff --git a/sdk/include/cdefs.h b/sdk/include/cdefs.h
index 0a916978..13de20ed 100644
--- a/sdk/include/cdefs.h
+++ b/sdk/include/cdefs.h
@@ -129,4 +129,7 @@ unsigned __builtin_strlen(const char *str) __asm__("_Z6strlenPKc");
 #	error Your compiler is too old for this version of CHERIoT RTOS, please upgrade to a newer version
 #endif
 
+#define CHERIOT_VERSION_TRIPLE(major, minor, patch)                            \
+	((major * 10000) + (minor * 100) + (patch))
+
 #endif // _CDEFS_H_
diff --git a/sdk/include/platform/sunburst/platform-gpio.hh b/sdk/include/platform/sunburst/platform-gpio.hh
index 9aae88b1..d7c3d3ad 100644
--- a/sdk/include/platform/sunburst/platform-gpio.hh
+++ b/sdk/include/platform/sunburst/platform-gpio.hh
@@ -39,14 +39,25 @@ struct SonataGPIO
 	uint32_t arduinoShieldHeader;
 	uint32_t arduinoShieldMask;
 
+	/**
+	 * Is the current target Sonata 1.0.0 or later?
+	 */
+	static bool constexpr Sonata1OrLater =
+#if SONATA >= CHERIOT_VERSION_TRIPLE(1, 0, 0)
+	  true
+#else
+	  false
+#endif
+	  ;
+
 	/**
 	 * The bit index of the first GPIO pin connected to a user LED.
 	 */
-	static constexpr uint32_t FirstLED = 4;
+	static constexpr uint32_t FirstLED = Sonata1OrLater? 0 : 4;
 	/**
 	 * The bit index of the last GPIO pin connected to a user LED.
 	 */
-	static constexpr uint32_t LastLED = 11;
+	static constexpr uint32_t LastLED = Sonata1OrLater ? 7 : 11;
 	/**
 	 * The number of user LEDs.
 	 */