Project: QGIS
Version: 2.16.0
The previous setting for include WKT when copying features has been replaced with a choice of copying features as "Plain text, attributes only", "Plain text, WKT geometry" and a new "GeoJSON" option. When set to "GeoJSON", copying features in QGIS will place a GeoJSON text representation of the features on the clipboard for easy pasting into other applications/JavaScript code. These settings can be found in the Settings -> Options -> Data Sources -> Copy features as.
This feature was developed by Nyall Dawson (North Road)