Summarized Changelog:

• Added the ability to move elements when editing screenshots
• Added the ability to edit text once placed
• Improved localization
• Improved file extension options for saving to disk
• Added ability to set the upload history size
• Undo / Redo stack reworked to prevent various bugs

Full changelog available here.

Took a screenshot, added a rectangle region, moved the rectangle, and copied it to Discord. Took another screenshot and saved it to a file.