diff --git a/README.md b/README.md
index daa5d58..c3b168e 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,10 @@ You can find the board schematics at [Makerspet repo](https://github.com/makersp
 
 ## Release notes
 
+### v0.3.0
+- virtual class methods
+- ESP32 crash workaround
+
 ### v0.2.0
 - example bugfix
 - renamed classes
diff --git a/library.properties b/library.properties
index ad681d5..5431a50 100644
--- a/library.properties
+++ b/library.properties
@@ -1,5 +1,5 @@
 name=LDS
-version=0.2.0
+version=0.3.0
 author=Ilia O. <iliao@kaia.ai>
 maintainer=Ilia O. <iliao@kaia.ai>
 sentence=Laser distance scan sensors (LDS/LIDAR) wrapper/controller for kaia.ai robotics platform
diff --git a/src/LDS.h b/src/LDS.h
index 3abbf98..50156a5 100644
--- a/src/LDS.h
+++ b/src/LDS.h
@@ -94,10 +94,10 @@ class LDS {
     void setInfoCallback(InfoCallback info_callback);
     void setErrorCallback(ErrorCallback error_callback);
 
-    static String resultCodeToString(result_t code);
-    static String infoCodeToString(info_t code);
-    static String pinIDToString(lds_pin_t pin);
-    static String pinStateToString(lds_pin_state_t state);
+    virtual String resultCodeToString(result_t code);
+    virtual String infoCodeToString(info_t code);
+    virtual String pinIDToString(lds_pin_t pin);
+    virtual String pinStateToString(lds_pin_state_t state);
     
   protected:
     void postScanPoint(float angle_deg, float dist_mm, float quality, bool scan_completed);