diff --git a/include/etl/version.h b/include/etl/version.h
index 0a392706..1e38de66 100644
--- a/include/etl/version.h
+++ b/include/etl/version.h
@@ -39,12 +39,12 @@ SOFTWARE.
 
 #define ETL_VERSION_MAJOR 14
 #define ETL_VERSION_MINOR 31
-#define ETL_VERSION_PATCH  0
+#define ETL_VERSION_PATCH  1
 
-#define ETL_VERSION       ETL_STRINGIFY(ETL_VERSION_MAJOR) ETL_STRINGIFY(ETL_VERSION_MINOR) ETL_STRINGIFY(ETL_VERSION_PATCH)
-#define ETL_VERSION_W     ETL_WIDE_STRING(ETL_CONCAT(ETL_CONCAT(ETL_VERSION_MAJOR, ETL_VERSION_MINOR), ETL_VERSION_PATCH))
-#define ETL_VERSION_U16   ETL_U16_STRING(ETL_CONCAT(ETL_CONCAT(ETL_VERSION_MAJOR, ETL_VERSION_MINOR), ETL_VERSION_PATCH))
-#define ETL_VERSION_U32   ETL_U32_STRING(ETL_CONCAT(ETL_CONCAT(ETL_VERSION_MAJOR, ETL_VERSION_MINOR), ETL_VERSION_PATCH))
+#define ETL_VERSION       ETL_STRINGIFY(ETL_VERSION_MAJOR) "." ETL_STRINGIFY(ETL_VERSION_MINOR) "." ETL_STRINGIFY(ETL_VERSION_PATCH)
+#define ETL_VERSION_W     ETL_STRINGIFY(ETL_VERSION_MAJOR) L"." ETL_STRINGIFY(ETL_VERSION_MINOR) L"." ETL_STRINGIFY(ETL_VERSION_PATCH)
+#define ETL_VERSION_U16   ETL_STRINGIFY(ETL_VERSION_MAJOR) u"." ETL_STRINGIFY(ETL_VERSION_MINOR) u"." ETL_STRINGIFY(ETL_VERSION_PATCH)
+#define ETL_VERSION_U32   ETL_STRINGIFY(ETL_VERSION_MAJOR) U"." ETL_STRINGIFY(ETL_VERSION_MINOR) U"." ETL_STRINGIFY(ETL_VERSION_PATCH)
 #define ETL_VERSION_VALUE ((ETL_VERSION_MAJOR * 10000) + (ETL_VERSION_MINOR * 100) + ETL_VERSION_PATCH)
 
 #endif
diff --git a/library.json b/library.json
index f2c2d6fe..87796d7c 100644
--- a/library.json
+++ b/library.json
@@ -7,19 +7,8 @@
   },
   "homepage": "https://www.etlcpp.com/",
   "license": "MIT",
-  "description": "A C++ template library tailored for embedded systems.
+  "description": "A C++ template library tailored for embedded systems.",
   "repository": "https://github.com/ETLCPP/etl.git",
-  "platforms": [
-    "espressif8266",
-    "espressif32"
-  ],
-  "frameworks": "arduino",
-  "build": {
-    "flags": [
-      "-I include"
-    ],
-    "srcFilter": [
-        "-<test/*>"
-    ]
-}
+  "platforms": "*",
+  "frameworks": "*"
 }
diff --git a/support/Release notes.txt b/support/Release notes.txt
index dc8f4410..9f3ccbb2 100644
--- a/support/Release notes.txt	
+++ b/support/Release notes.txt	
@@ -1,3 +1,7 @@
+===============================================================================
+14.31.1
+Fix error in PIO json
+
 ===============================================================================
 14.31.0
 Removed C timer library