diff --git a/README.md b/README.md
index e50fe11..091f993 100644
--- a/README.md
+++ b/README.md
@@ -9,3 +9,17 @@ this repo:
 ```sh
 $ make -C posix ARGS="-pass DEVICE_MDASH_PASSWORD"
 ```
+
+Firmware V1.2.17:
+
+1. Resolved the bug on [mDashShadowUpdate()](https://github.com/cesanta/mDash/issues/22).
+2. Added mDashNotify_shdw() for mDashShadowUpdate() with removal of MutexLock.
+
+Firmware V1.2.17X2:
+
+1. Added a function mDashOTAPercent()
+
+Firmware V1.2.17X3:
+
+1. Resolved the Mdash task exit when using mDashNotify().
+2. Removed the Mutex locks in mDashNotify()
diff --git a/library.properties b/library.properties
index deff451..2055e94 100644
--- a/library.properties
+++ b/library.properties
@@ -1,10 +1,10 @@
 name=mDash
-version=1.2.16
+version=1.2.17X3
 author=Cesanta Software Limited <support@cesanta.com>
 maintainer=Cesanta Software Limited <support@cesanta.com>
 sentence=Remote control and OTA for ESP32 via mdash.net IoT backend 
 paragraph=Provides OTA, MQTT, device shadow, Filesystem management for ESP32
 category=Communication
-url=https://github.com/cesanta/mDash
+url=https://github.com/Thermelgy-Repo/mDash
 architectures=esp32
 includes=mDash.h
diff --git a/src/mDash.c b/src/mDash.c
index 19add28..6a6ec79 100644
--- a/src/mDash.c
+++ b/src/mDash.c
@@ -398,7 +398,7 @@ static void rpc_fs_list(struct mg_rpc_req *r) {
 
 int mDashNotify(const char *name, const char *fmt, ...) {
   int res = 0;
-  MDashMutexLock();
+  //MDashMutexLock();
   va_list ap;
   if (s_conn != NULL) {
     struct mg_iobuf io = {0, 0, 0, 512};
@@ -413,7 +413,36 @@ int mDashNotify(const char *name, const char *fmt, ...) {
     mg_iobuf_free(&io);
     res = 1;
   }
-  MDashMutexUnlock();
+  //MDashMutexUnlock();
+  return res;
+}
+
+/**
+ * @brief MDash Notify Shadow without mutex lock  
+ * 
+ * @param name Type Name
+ * @param fmt Format
+ * @param ... multiple arguments
+ * @return int 
+ */
+int mDashNotify_shdw(const char *name, const char *fmt, ...) {
+  int res = 0;
+  //MDashMutexLock();
+  va_list ap;
+  if (s_conn != NULL) {
+    struct mg_iobuf io = {0, 0, 0, 512};
+    mg_rprintf(mg_pfn_iobuf, &io, "{%Q:%Q,%Q:", "method", name, "params");
+    va_start(ap, fmt);
+    mg_vrprintf(mg_pfn_iobuf, &io, fmt, &ap);
+    va_end(ap);
+    mg_rprintf(mg_pfn_iobuf, &io, "}");
+    if (io.buf != NULL) {
+      mg_ws_send(s_conn, (char *) io.buf, io.len, WEBSOCKET_OP_TEXT);
+    }
+    mg_iobuf_free(&io);
+    res = 1;
+  }
+  //MDashMutexUnlock();
   return res;
 }
 
@@ -790,3 +819,10 @@ void mDashInit(const char *id, const char *pass, const char *name,
   xTaskCreatePinnedToCore(&mDashTask, "mDashTask", 16384, 0, 5, 0, CPU_CORE);
   MDashMutexUnlock();
 }
+
+int mDashOTAPercent(void){
+  if (s_ota_size == 0) 
+    return 0; // Or an error code if you prefer
+    
+  return((int) (s_ota_written * 100 / s_ota_size));
+}
\ No newline at end of file
diff --git a/src/mDash.h b/src/mDash.h
index 0b7b7bc..4576610 100644
--- a/src/mDash.h
+++ b/src/mDash.h
@@ -38,6 +38,10 @@ int mDashStore(const char *topic, const char *json_fmt, ...);
 
 // Send notification frame to mDash
 int mDashNotify(const char *name, const char *fmt, ...);
+
+// Send notification of shadow to Mdash without Mutex lock
+int mDashNotify_shdw(const char *name, const char *fmt, ...);
+
 #define mDashShadowUpdate(fmt, ...) \
   mDashNotify("Dash.Shadow.Update", (fmt), __VA_ARGS__)
 
@@ -45,6 +49,7 @@ int mDashConfigGet(const char *name, char *buf, int bufsize);
 int mDashConfigSet(const char *name, const char *value);
 int mDashConfigReset(void);
 void mDashPoll(void);
+int mDashOTAPercent(void);
 
 // Registered RPC handlers. Use mg_rpc_add() to add new handlers
 extern struct mg_rpc *g_rpcs;