diff --git a/CHANGELOG.md b/CHANGELOG.md
index 99ed78f57..cfe6b8b00 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,7 +3,7 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased] - Development
 
-## [12.0.2.4]
+## [12.0.2.4] 20220818
 ### Added
 - Command ``SetOption45 1..250`` to change default bistable latching relay pulse length of 40 milliseconds
 - Support for Modbus bridge adding commands ``ModbusSend``, ``ModbusBaudrate`` and ``ModbusSerialConfig`` (#16013)
@@ -18,6 +18,7 @@ All notable changes to this project will be documented in this file.
 ### Changed
 - ESP32 LVGL library from v8.2.0 to v8.3.0 (#16019)
 - Tasmota ESP32 Arduino core from v2.0.4 to v2.0.4.1 (#16110)
+- TasmotaModbus library from v3.4.0 to v3.5.0 (#16245)
 
 ### Fixed
 - Restore EnergyToday after using command ``restart 2`` and power cycle (#16118)
diff --git a/RELEASENOTES.md b/RELEASENOTES.md
index 87ca083bb..71e701054 100644
--- a/RELEASENOTES.md
+++ b/RELEASENOTES.md
@@ -129,6 +129,7 @@ The latter links can be used for OTA upgrades too like ``OtaUrl http://ota.tasmo
 ### Breaking Changed
 
 ### Changed
+- TasmotaModbus library from v3.4.0 to v3.5.0 [#16245](https://github.com/arendst/Tasmota/issues/16245)
 - ESP32 Arduino core from v2.0.3 to v2.0.4.1 [#15940](https://github.com/arendst/Tasmota/issues/15940)
 - ESP32 LVGL library from v8.2.0 to v8.3.0 [#16019](https://github.com/arendst/Tasmota/issues/16019)
 - Driver DHT v6 consolidation for both ESP8266 and ESP32 to support SI7021, THS01 and MS01 on ESP32 [#15856](https://github.com/arendst/Tasmota/issues/15856)
diff --git a/lib/lib_basic/TasmotaModbus-3.4.0/README.md b/lib/lib_basic/TasmotaModbus-3.4.0/README.md
deleted file mode 100644
index 019aafc07..000000000
--- a/lib/lib_basic/TasmotaModbus-3.4.0/README.md
+++ /dev/null
@@ -1,7 +0,0 @@
-# TasmotaSerial
-
-Implementation of software serial with hardware serial fallback library for the ESP8266
-
-Allows for several instances to be active at the same time.
-
-Please note that due to the fact that the ESP always have other activities ongoing, there will be some inexactness in interrupt timings. This may lead to bit errors when having heavy data traffic.
diff --git a/lib/lib_basic/TasmotaModbus-3.4.0/examples/modbustest/modbustest.ino b/lib/lib_basic/TasmotaModbus-3.5.0/examples/modbustest/modbustest.ino
similarity index 100%
rename from lib/lib_basic/TasmotaModbus-3.4.0/examples/modbustest/modbustest.ino
rename to lib/lib_basic/TasmotaModbus-3.5.0/examples/modbustest/modbustest.ino
diff --git a/lib/lib_basic/TasmotaModbus-3.4.0/keywords.txt b/lib/lib_basic/TasmotaModbus-3.5.0/keywords.txt
similarity index 100%
rename from lib/lib_basic/TasmotaModbus-3.4.0/keywords.txt
rename to lib/lib_basic/TasmotaModbus-3.5.0/keywords.txt
diff --git a/lib/lib_basic/TasmotaModbus-3.4.0/library.json b/lib/lib_basic/TasmotaModbus-3.5.0/library.json
similarity index 75%
rename from lib/lib_basic/TasmotaModbus-3.4.0/library.json
rename to lib/lib_basic/TasmotaModbus-3.5.0/library.json
index 9c93d13b5..717fcb75f 100644
--- a/lib/lib_basic/TasmotaModbus-3.4.0/library.json
+++ b/lib/lib_basic/TasmotaModbus-3.5.0/library.json
@@ -1,10 +1,10 @@
 {
     "name": "TasmotaModbus",
-    "version": "3.4.0",
+    "version": "3.5.0",
     "keywords": [
       "serial", "io", "TasmotaModbus"
     ],
-    "description": "Basic modbus wrapper for TasmotaSerial for ESP8266.",
+    "description": "Modbus wrapper for TasmotaSerial.",
     "repository":
     {
         "type": "git",
diff --git a/lib/lib_basic/TasmotaModbus-3.4.0/library.properties b/lib/lib_basic/TasmotaModbus-3.5.0/library.properties
similarity index 93%
rename from lib/lib_basic/TasmotaModbus-3.4.0/library.properties
rename to lib/lib_basic/TasmotaModbus-3.5.0/library.properties
index 748962a53..f6e583e03 100644
--- a/lib/lib_basic/TasmotaModbus-3.4.0/library.properties
+++ b/lib/lib_basic/TasmotaModbus-3.5.0/library.properties
@@ -1,5 +1,5 @@
 name=TasmotaModbus
-version=3.4.0
+version=3.5.0
 author=Theo Arends
 maintainer=Theo Arends <theo@arends.com>
 sentence=Basic modbus wrapper for TasmotaSerial for ESP8266.
diff --git a/lib/lib_basic/TasmotaModbus-3.4.0/src/TasmotaModbus.cpp b/lib/lib_basic/TasmotaModbus-3.5.0/src/TasmotaModbus.cpp
similarity index 100%
rename from lib/lib_basic/TasmotaModbus-3.4.0/src/TasmotaModbus.cpp
rename to lib/lib_basic/TasmotaModbus-3.5.0/src/TasmotaModbus.cpp
diff --git a/lib/lib_basic/TasmotaModbus-3.4.0/src/TasmotaModbus.h b/lib/lib_basic/TasmotaModbus-3.5.0/src/TasmotaModbus.h
similarity index 100%
rename from lib/lib_basic/TasmotaModbus-3.4.0/src/TasmotaModbus.h
rename to lib/lib_basic/TasmotaModbus-3.5.0/src/TasmotaModbus.h