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+RepRapFirmware 3.01-RC4 (in preparation)
+=======================
+
+Recommended compatible firmware:
+- DuetWebControl 2.0.7
+- DuetWiFiServer 1.24
+- Duet Software Framework 1.2.4.0 (for Duet 3/Raspberry Pi users)
+- Duet 3 expansion board and tool board firmware 3.01-RC4
+
+Upgrade notes: none since 2.03-RC3
+
+New features/changed behaviour:
+- Parameters in commands received from the SBC attached to a Duet 3 may now be expressions, unless they are array parameters
+- Round brackets in GCode lines are no longer treated as enclosing comments if the machine is not in CNC mode
+- Added functions radians(arg) and degrees(arg) which convert the argument from degrees to radians, and from radians to degrees
+- M915 now reports the axis or extruder speed that corresponds to the fullsteps/second value of the H parameter
+
+Bug fixes:
+- If an array of items in the object model (e.g. heaters, sensors) included null entries because of gaps in the item numbers created, and an object model expression referred to a prioerty of such as null element, the firmware crashed
+- If a while-loop was not followed by at least one GCode command or meta command outside the loop before the end of the file, the loop was never executed more than once
+
 RepRapFirmware 3.01-RC3
 =======================