If you have been waiting for an easy way to update your Nexus 5 to Marshmallow your wait is over. Mark Skippen has just released an update for his Nexus 5 Toolkit which now includes support for Marshmallow. It even includes the a stable root method! If you don't have the Marshmallow stock image no worries you can grab it from within the toolkit! There are now fastboot erase commands for cleaner updates. The new update also includes lots of bug fixes. This update is available for both free and pro users. Head to the link below for the download.
via Skipsoft