Version 1.1 adds some much-needed cleanup and new quality of life features to the WP Posts Widget.
New widget options
Image size option: You can now choose the image size instead of just being restricted to the thumbnail. New sizes: Thumbnail, Medium Large, Large, Full. Medium is still the default, so no visual changes after upgrade
Hide images: Maybe you just want a compact list of posts, you can now remove the image from the same select box
Refresh interval: Instead of checking for new posts on every page load a cache has now been added to the widget. The default is to check every 5 minutes, and you can adjust it from the widget settings (set 0 for no cache).
Improvements
More accurately escapes and cleans up text as received from your blog (security enhancement)
Only the minimal amount of fields needed are saved to cache, not full posts
Fix widget settings admin form inconsistencies when 0 is entered
Added minimum requirements and license to addon
Upgrading from 1.0.0
Install over the existing addon. No action is needed. Existing widgets keep their settings and work as before. Review the new Image size and Refresh interval fields if you want to change the defaults.