The Charm Tech team has just released version 2.5.0 of ops.
There are three significant new features: multi-status handling with collect-status events, Harness.get_filesystem_root for better container filesystem testing, and support for Pebble’s “service context” feature. It also includes many minor fixes.
It’s available from PyPI by using pip install ops, which should pick up the latest version (pin with ops==2.5.0 if you want to pin to a specific version).