The very popular chemical drawing package ChemDoodle has been updated.

ChemDoodle 2D v11.1 is a feature and stability update and is recommended for all users. The major new feature is advanced repeat unit support, both in graphical drawing and cheminformatics interpretation and expansion. Other notable features include improved reaction building interfaces and feedback, arc-length controls, and smaller EPS file output. This update also corrects an issue introduced by macOS 10.15.6, leading to corrupted and missing windows. So if you are experiencing these issues, make sure to install this update.