PyModbus - A Python Modbus Stack

Making a release.

Make pull request "prepare v3.7.x", with the following:
- Update pymodbus/__init__.py with version number (__version__ X.Y.Zpre)
- Update README.rst "Supported versions"
- Update roadmap.rst
- Control / Update API_changes.rst
- Update CHANGELOG.rst
  
  Add commits from last release, but selectively ! git log --oneline v3.8.0..HEAD > commit.log git log --pretty="%an" v3.8.0..HEAD | sort -uf > authors.log update AUTHORS.rst and CHANGELOG.rst cd doc; ./build_html
- rm -rf build/* dist/*
- python3 -m build
- twine check dist/*
- Commit, push and merge.
- Wait for CI to complete
- git pull
Checkout master locally
- git merge dev
- git push
- git branch -D master
- wait for CI to complete on all branches
On github "prepare release"
- Create tag e.g. v3.7.0dev0
- Title "pymodbus v3.7.0dev0"
- do NOT generate release notes, but copy from CHANGELOG.rst
- make release (remember to mark pre-release if so)
on local repo
- git pull, check release tag is pulled
- git checkout v3.7.0dev0
- rm -rf build/* dist/*
- python3 -m build
- twine upload dist/* (upload to pypi)
- Double check Read me docs are updated
  
  trigger build https://readthedocs.org/projects/pymodbus/builds/
- Mark release as active in readthedocs.org
Make an announcement in discussions.

Make pull request "prepare dev", with the following:
- Update pymodbus/__init__.py with version number (__version__ X.Y.Zpre)

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