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# 2 Microchip MPLAB® Harmony 3 Release Notes

## Touch Host Driver v1.1.0 Release

### New Features

- Host Driver support for MTCH2120 is included
- MPLAB® Touch Plugin for MTCH2120 is included

### Development Tools

- MPLAB® X IDE v6.20
- MPLAB® XC32 C/C++ Compiler v4.45
- MPLAB® X IDE plug-ins:
  - MPLAB® Code Configurator (MCC) v5.5.1
- MPLAB® Data Visualizer v1.3.1677
- MPLAB® Touch Plugin v2.3.0

### Required MPLAB® Harmony v3.x.x Modules

- csp v3.19.6

## Touch Host Driver v1.0.0 Release

### New Features

- Drivers for following Turnkey Capacitive Touch devices are supported
  - AT42QT1110
  - AT42QT2120
- Option to tune touch parameters of turnkey devices using MPLAB® Touch Plugin is supported. This option will use host MCU's UART peripheral in addition to the turnkey interface.
  - Refer to Guide to view Touch Tune Data using MPLAB® Data Visualizer for more details on MPLAB® Data Visualizer Touch Plugin.

### Development Tools

- MPLAB® X IDE v6.00
- MPLAB® XC32 C/C++ Compiler v4.00
- MPLAB® X IDE plug-ins:
  - MPLAB® Code Configurator (MCC) v5.1.2
- MPLAB® Data Visualizer v1.3.1160
- MPLAB® Touch Plugin v2.0.0

### Required MPLAB® Harmony v3.x.x Modules

- csp v3.11.0