diff --git a/bindings/javascript/cbindings.js b/bindings/javascript/cbindings.js
index 25fd8f65..5ff393a8 100644
--- a/bindings/javascript/cbindings.js
+++ b/bindings/javascript/cbindings.js
@@ -1575,6 +1575,12 @@ var Lib = ffi.Library(LIBMETAWEAR_PATH, {
  */
   'mbl_mw_settings_set_whitelist_filter_mode': [ref.types.void, [ref.refType(MetaWearBoard), WhitelistFilter]],
 
+/**
+ * Retrieves the firmware build id, used for identifying custom firmware build variants 
+ * @param board         Calling object
+ */
+  'mbl_mw_settings_get_firmware_build_id': [ref.types.uint8, [ref.refType(MetaWearBoard)]],
+
 /**
  * Sets the advertisement name
  * @param board             Board to modify
diff --git a/bindings/python/mbientlab/metawear/cbindings.py b/bindings/python/mbientlab/metawear/cbindings.py
index 3ece2973..ea5b8fc2 100644
--- a/bindings/python/mbientlab/metawear/cbindings.py
+++ b/bindings/python/mbientlab/metawear/cbindings.py
@@ -1375,6 +1375,9 @@ def init_libmetawear(libmetawear):
     libmetawear.mbl_mw_settings_set_whitelist_filter_mode.restype = None
     libmetawear.mbl_mw_settings_set_whitelist_filter_mode.argtypes = [c_void_p, c_int]
 
+    libmetawear.mbl_mw_settings_get_firmware_build_id.restype = c_ubyte
+    libmetawear.mbl_mw_settings_get_firmware_build_id.argtypes = [c_void_p]
+    
     libmetawear.mbl_mw_settings_set_device_name.restype = None
     libmetawear.mbl_mw_settings_set_device_name.argtypes = [c_void_p, POINTER(c_ubyte), c_ubyte]
 
diff --git a/project_version.mk b/project_version.mk
index de9553cd..8aca7534 100644
--- a/project_version.mk
+++ b/project_version.mk
@@ -1,4 +1,4 @@
-VERSION=0.19.0
+VERSION=0.19.1
 VERSION_MAJOR=0
 VERSION_MINOR=19
-VERSION_STEP=0
+VERSION_STEP=1
diff --git a/src/metawear/core/cpp/settings.cpp b/src/metawear/core/cpp/settings.cpp
index 094ec555..a74ad241 100644
--- a/src/metawear/core/cpp/settings.cpp
+++ b/src/metawear/core/cpp/settings.cpp
@@ -265,3 +265,11 @@ void create_settings_uri(const MblMwDataSignal* signal, stringstream& uri) {
         break;
     }
 }
+
+uint8_t mbl_mw_settings_get_firmware_build_id(const MblMwMetaWearBoard *board) {
+    auto info = &board->module_info.at(MBL_MW_MODULE_SETTINGS);
+    if (info->extra.size() > 1) {
+        return info->extra[1];
+    }
+    return 0;
+}
diff --git a/src/metawear/core/settings.h b/src/metawear/core/settings.h
index b36ea117..51379301 100644
--- a/src/metawear/core/settings.h
+++ b/src/metawear/core/settings.h
@@ -158,6 +158,11 @@ METAWEAR_API MblMwDataSignal* mbl_mw_settings_get_whitelist_data_signal(MblMwMet
  * @param mode           Whitelist filter mode
  */
 METAWEAR_API void mbl_mw_settings_set_whitelist_filter_mode(const MblMwMetaWearBoard *board, MblMwWhitelistFilter mode);
+/**
+ * Retrieves the firmware build id, used for identifying custom firmware build variants 
+ * @param board         Calling object
+ */
+METAWEAR_API uint8_t mbl_mw_settings_get_firmware_build_id(const MblMwMetaWearBoard *board);
 
 /**
  * Reads the current power status if available.  The callback function will be called with:  
diff --git a/src/metawear/sensor/cpp/utils.cpp b/src/metawear/sensor/cpp/utils.cpp
index 30bc0db8..d3dbfaa5 100644
--- a/src/metawear/sensor/cpp/utils.cpp
+++ b/src/metawear/sensor/cpp/utils.cpp
@@ -22,7 +22,7 @@ char* copy_string_index(const char* src, std::uint8_t i) {
 }
 
 char* copy_string(const char* src) {
-    char* buffer = (char*)std::malloc(strlen(src)+1);
+    char* buffer = (char*)std::malloc(strlen(src) + 1);
     strcpy(buffer, src);
     return buffer;
 }