Hi,

I developed an plugin and would like to implement an update mechanism wich updated the plugin automatically without any need of user interaction.

Do you have any idea or some tipps how to implement this?

No, I am referring to something like the update mechanism in wordpress. Just a simple click in the backend and my Plugin will updates itself.

The core team has made it clear a couple times that building that sort of GUI plugin manager (and required other interfaces / API's) isn't a high priority to fit in with the design decisions of the framework and I doubt you'll see it anytime soon unless driven by a particular group / developer.

With Composer / Packagist being used for modules now that actually sorts a bit of the backend infrastructure out (dependancies, supported versions, module meta data etc) so in theory if a plugin manager was needed a developer could leverage composer and simply add a GUI ontop of that.