diff --git a/README.md b/README.md
index 86e405b..59efef3 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 ## grblHAL ##
 
-Latest build date is 20250221, see the [changelog](changelog.md) for details.  
+Latest build date is 20250222, see the [changelog](changelog.md) for details.  
 
 > [!NOTE]
 >  A settings reset will be performed on an update of builds prior to 20241208. Backup and restore of settings is recommended.  
@@ -89,4 +89,4 @@ G/M-codes not supported by [legacy Grbl](https://github.com/gnea/grbl/wiki) are
 Some [plugins](https://github.com/grblHAL/plugins) implements additional M-codes.
 
 ---
-20250221
+20250222
diff --git a/changelog.md b/changelog.md
index 2d3d516..a605d56 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,17 @@
 ## grblHAL changelog
 
+<a name="20250222">Build 20250222
+
+Core:
+
+* Added definition for LinuxCNC M190 gcode, required by plasma plugin. No functional change.
+
+Plugins:
+
+* Plasma: added basic support for LinuxCNC style M190 and "magic" comments. Untested. Ref. issue [#21](https://github.com/grblHAL/Plugin_plasma/issues/21).
+
+---
+
 <a name="20250221">Build 20250221
 
 Core:
diff --git a/gcode.h b/gcode.h
index 021a593..1c0a8aa 100644
--- a/gcode.h
+++ b/gcode.h
@@ -254,6 +254,7 @@ typedef enum {
     LaserPPI_Rate = 127,                //!< 127 - M127
     LaserPPI_PulseLength = 128,         //!< 128 - M128
     RGB_WriteLEDs = 150,                //!< 150 - M150, Marlin format
+    Plasma_SelectMaterial = 190,        //!< 150 - M190, LinuxCNC format
     OpenPNP_SetJerk = 20130,            //!< 20130 - M201.3
     OpenPNP_SetAcceleration = 204,      //!< 204 - M204
     SetFeedOverrides = 220,             //!< 220 - M220, Marlin format
diff --git a/grbl.h b/grbl.h
index 7fcf6a7..2f7fcb1 100644
--- a/grbl.h
+++ b/grbl.h
@@ -42,7 +42,7 @@
 #else
 #define GRBL_VERSION "1.1f"
 #endif
-#define GRBL_BUILD 20250221
+#define GRBL_BUILD 20250222
 
 #define GRBL_URL "https://github.com/grblHAL"