0.022 2025-01-25
  [Requirement Changes]
    * Require SPVM 0.990042.
    * Require SPVM::Sys 0.531.
    * Require SPVM::IO 0.232.

  [Test Improvement]
    * Call Fn#destroy_runtime_permanent_vars method in the end of tests.
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.