diff --git a/emonLibCM.cpp b/emonLibCM.cpp
diff --git a/emonLibCM.h b/emonLibCM.h
@@ -16,6 +16,23 @@
 //  and pulse counting incorporated into the library,  by Robert Wall 
 //  Release for testing 4/1/2017
 //
+
+// Version 3.0.0 20/04/2022   AVR-DB branch
+// Version 3.0.1 07/07/2022   SAMP PIN lower level IO 
+// Version 3.0.2 20/08/2022   6 channel support
+// Version 3.0.3 05/10/2022   Fix online configuration
+// Version 3.0.4 21/11/2022   Option to return channel mean value
+// Version 3.0.5 22/11/2022   Fix for ADCDuration needs to be double
+// Version 3.0.6 29/11/2022   Slow down sample rate to DIV32 (39.3 us) improved zero power level
+// Version 3.0.7 03/12/2022   Option to fetch analog channel mean
+// 
+// Version 3.0.8 25/04/2023   Skip ISR processing with flag if precise one-wire timing required
+//                            this reduces DS18B20 temperature sensing interference 
+//                            on the continuos sampling electricity monitoring
+//                            Update includes more efficient data structure swap
+//                            which also eliminates an ISR over-run
+// Version 3.0.9 26/04/2023   Use memset_v rather than memset to get rid of compiler errors (from emonLibDB)
+
 // Version 2.0  21/11/2018
 // Version 2.01  3/12/2018  No change.
 // Version 2.02 13/07/2019  getLogicalChannel( ), ReCalibrate_VChannel( ), ReCalibrate_IChannel( ) added, setPulsePin( ) interrupt no. was obligatory,
@@ -77,7 +94,7 @@ typedef uint8_t DeviceAddress[8];
 void EmonLibCM_cycles_per_second(unsigned int _cycles_per_second);
 void EmonLibCM_min_startup_cycles(unsigned int _min_startup_cycles);
 void EmonLibCM_datalog_period(float _datalog_period_in_seconds);
-void EmonLibCM_setADC(int _ADCBits,  int ADCDuration);
+void EmonLibCM_setADC(int _ADCBits,  double ADCDuration);
 void EmonLibCM_ADCCal(double _RefVoltage);
 void EmonLibCM_SetADC_VChannel(byte ADC_Input, double _amplitudeCal);
 void EmonLibCM_SetADC_IChannel(byte ADC_Input, double _amplitudeCal, double _phaseCal);
@@ -104,6 +121,7 @@ int EmonLibCM_getRealPower(int channel);
 int EmonLibCM_getApparentPower(int channel);
 double EmonLibCM_getPF(int channel);
 double EmonLibCM_getIrms(int channel);
+double EmonLibCM_getMean(int channel);
 double EmonLibCM_getVrms(void);
 double EmonLibCM_getAssumedVrms(void);
 double EmonLibCM_getDatalog_period(void);

diff --git a/library.json b/library.json
@@ -2,7 +2,7 @@
   "name": "EmonLibCM",
   "keywords": "electricity, energy, monitoring",
   "description": "Energy Monitoring Continuous Sampling Library",
-  "version": "2.1.0",
+  "version": "3.0.6",
   "repository":
   {
     "type": "git",

diff --git a/readme.md b/readme.md
@@ -1,8 +1,8 @@
-# EmonLibCM
+# EmonLibCM (AVR-DB Branch)
 
-The EmonLibCM library is maintained by @Robert.Wall and mirrored here for users of github.
+This is an adaptation of Robert Wall's EmonLibCM library to work with the AVR-DB microcontrollers.
 
-See forum release: [EmonLibCM](https://community.openenergymonitor.org/t/emonlibcm-version-2-03/9241/1)
+See Robert Wall's original forum release: [EmonLibCM](https://community.openenergymonitor.org/t/emonlibcm-version-2-03/9241/1)
 
 The following release notes are copied from the forum thread. The installation section is modified to reflect git command line installation.
 
@@ -48,6 +48,27 @@ Reload Arduino to start using the library.
 
 ## Changelog
 
+Version 3.0 includes AVR-DB specific changes:
+
+```
+// Version 3.0.0 20/04/2022   AVR-DB branch
+// Version 3.0.1 07/07/2022   SAMP PIN lower level IO 
+// Version 3.0.2 20/08/2022   6 channel support
+// Version 3.0.3 05/10/2022   Fix online configuration
+// Version 3.0.4 21/11/2022   Option to return channel mean value
+// Version 3.0.5 22/11/2022   Fix for ADCDuration needs to be double
+// Version 3.0.6 29/11/2022   Slow down sample rate to DIV32 (39.3 us) improved zero power level
+// Version 3.0.7 03/12/2022   Option to fetch analog channel mean
+// 
+// Version 3.0.8 25/04/2023   Skip ISR processing with flag if precise one-wire timing required
+//                            this reduces DS18B20 temperature sensing interference 
+//                            on the continuos sampling electricity monitoring
+//                            Update includes more efficient data structure swap
+//                            which also eliminates an ISR over-run
+// Version 3.0.9 26/04/2023   Use memset_v rather than memset to get rid of compiler errors (from emonLibDB)
+
+```
+
 Version 2.0 corrected some errors generated when converting from the original sketch, and incorporates improved handling of phase/timing compensation and improved removal of the d.c. bias. There are no other major changes from the version that has been tested by @TrystanLea since early 2017.
 
 - Changes for V2.01: Errors in phase error correction.