20200403

On Windows, please run CypressDriverInstaller_1.exe to install the USB-CDC driver.
On Linux, no drivers are needed. Download and run .AppImage directly.

Windows用户 ：
运行CypressDriverInstaller_1.exe安装USB-CDC驱动。
打开vna_qt_windows.zip运行vna_qt.exe即可。
Linux上无需安装驱动，下载运行NanoVNA_QT_GUI-x86_64.AppImage即可。

New in this version:

• Dynamically adjust read data chunk size to support faster sweep hardware variants
• (Linux) build on debian stretch to support Ubuntu LTS
• Don't refresh the UI when no device is connected