First releases usually get a follow up release quickly to get out the initial troubles. That's why this release is also nick-named Toothing Problems :D.
Get the 1.1 release files from the Download Section. You can install it over the 1.0 release but I would suggest uninstalling the 1.0 first. Keeps the engine directory cleaner.
No matter if Gamer or Developer you need to install the Game Engine first (green box).
If you are a Developer also install the Development Environment (blue box).
Check out the Documentation, Development Wiki and Example Projects (red boxed) for information on how to use the game engine. The pre-build examples (*.delga) you can run straight away without the IGDE.
To develop games using the Drag[en]gine you do not need the game engine source code neither do you have to compile anything! Create a project, run and distribute to *.delga file and you are all set!
You can find the full Changelog of the latest release on this Perma-Link:
Changelog Latest Release
Besides Bug-Fixes there are also Feature-Additions, namely Outline and Interact-Prompt behaviors added. More information you find at the Developer Wiki (behaviors with 1.1 noted)
You can also find the full Changelog of the upcoming release on this Perma-Link:
Changelog Upcoming Release
If you have questions, suggestions or other inquiries you can PM me here or using the Contact Page.