The versioning of this program collection is based on Semantic Versioning.
You can see the complete Semantic Versioning specification from
  https://semver.org/.
Basically, the version name of this app is in the form of:
  x.y.z
  Where x, y, and z are integers that are greater than or equal to 0.
  Where x, y, and z are separated by dots.
  x stands for the major version and indicates non-compatible major changes to
    the app.
  y stands for the minor version and indicates forward compatible minor
    changes to the app.
  z stands for the patch version and indicates bug fixes and patches to the
    app.

The version tags of this repo has the form of a letter "v" followed by a
  semantic version.
Given a semantic version:
  $x.$y.$z
  Where $x, $y, and $z are the semantic major, minor, and patch versions.
The corresponding version tag would be:
  v$x.$y.$z
The version tags are on the main branch.

Copyright (C) 2022 Yucheng Liu. GNU GPL3 license (GNU General Public License
  Version 3).
You should have and keep a copy of the above license. If not, please get it
  from https://www.gnu.org/licenses/gpl-3.0.txt.

MyOpenGLLearning, an OpenGL learner's program collection.
Copyright (C) 2022 Yucheng Liu. GNU GPL3 license (GNU General Public License
  Version 3).

This program is free software: you can redistribute it and/or modify it under
  the terms of the GNU General Public License as published by the Free
  Software Foundation, either version 3 of the License, or (at your option)
  any later version.

This program is distributed in the hope that it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  more details.

You should have received a copy of the GNU General Public License along with
  this program. If not, see:
  1. The LICENSE file in this repository.
  2. https://www.gnu.org/licenses/.
  3. https://www.gnu.org/licenses/gpl-3.0.txt.