0.04 2022-07-06
  [Changes]
    * Need a compiler supporing C++17 on only Windows/MinGW.
    * Required library "stdc++" is added.
0.03 2022-07-04
  [Changes]
    * Need a compiler supporing C++11.
    * Add pthread require library.

0.02 2022-07-01
  [Changes]
    * Improve document.

0.01 2022-06-30
  
  * First development release