Release/2.1.0

[FreemanPancake]

Description

Describe:

• Content of the pull request
• Feature added / Problem fixed

References

Provide any github issue fixed (as in Fix #XYZ)

Checklist

• [ X] I have read the contribution guide
• [ X] Code lint checked via inv lint
• [ X] changes file included (see docs)
• [ X] Usage documentation added in case of new features
• [ X] Tests added