Composer versions and constraints
12 Jun 2018~1.2.3means1.2.3 <= version < 1.3.0^1.2.3means1.2.3 <= version < 2.0.0
https://getcomposer.org/doc/articles/versions.md
~1.2.3 means 1.2.3 <= version < 1.3.0^1.2.3 means 1.2.3 <= version < 2.0.0https://getcomposer.org/doc/articles/versions.md