It does not currently appear possible to merge local git branches in VS Code.

Quite a common workflow is to have a "development" branch to develop new features on (or alternatively have feature specific branches). When the development is finished, the development branch is then merged into the "master" branch before release.

This can be done via the integrated terminal, but as VS Code's git implementation is so wizzy, it would be great to be able to replicate this workflow using the GUI.