python -m pip install logchange

# create CHANGELOG.md if it does not exist
# or reformat existing (please check changes manually)
logchange init -f

# add new release
cat NOTES_0.1.0.md | logchange add 0.1.0
# or
logchange add 0.2.0 -i `cat NOTES_0.2.0.md`

# update existing or create a new section in latest release
logchange add latest added -i 'New feature'
# or
logchange add latest -i 'Added: New feature'

# set unreleased section
logchange set unreleased fixed -i 'Unreleased fix'

# list released versions
logchange list
< 0.1.0
< 0.2.0

# check release notes sections
logchange get 0.1.0 added
< - New awesome feature
< - Another feature