Qt 5.15.5 源码发布，下载地址
https://download.qt.io/official_releases/qt/5.15/5.15.5/single/

release note:
https://code.qt.io/cgit/qt/qtreleasenotes.git/about/qt/5.15.5/release-note.md

源码下载
链接：https://pan.baidu.com/s/1xllr3mxtzfwBaRZyspyc_g?pwd=vlpy
提取码：vlpy

编译成品：
https://build-qt.fsu0413.me/
该版本 MySQL 5.7 驱动下载（vc2019，x64）