0.021 2023-05-29
  [Prerequirement Changes]
    SPVM 0.986+ is required.
  [License Change]
    * The license is changed to MIT License.
  [New Features]
    * The version string can be got.
0.02 2023-02-14
  [Prerequirement Changes]
    * SPVM::IO 0.16+ is needed.
0.01 2023-02-09
  [Changes]
    * First release.
