Version 2.1 of the QR-Code Field is available to download and in repository. This is a maintenance release.
The QR-Code Field can now be used also as category field, a new PHP7 compatible QR-code library is used and several small bug fixes and features are added.
With the QR-Code Field a scan-able QR code image can be created for an entry (or a category). Setup is easy to do, and allows to add the URL to an entry (or category), any text input field or other entry related data, also combined with static text.