Release 8.6.3

Use arc.print to print usage, not arc.log

Release 8.6.2

attempting to fix PyPi publish process

Release 8.6.1

Publish on github release

v8.5.0

8.5.0

v6.4.0

version bump to 6.4.0

v6.3.0

This release fixes a few minor bugs, adds some utilities to the present package and provide experimental support for shell completions

v6.0.0

updated readme links

v3.1.0

Version 3.1.0

v2.3.0

version bump

v2.2.1

updated version