GitHub has introduced several updates to enhance the management of incoming issues in repositories, including a new keyword and saved reply feature for marking duplicate issues, as well as improved keyword styling for better clarity. Users can now efficiently flag redundant issues by commenting with the "duplicate of" keyword and the relevant issue number or URL, which will generate a "Marked as duplicate" event in the timelines of the referenced issues. Additionally, the updated keyword styling provides more informative displays in issues and pull requests, with keywords like "closes" being highlighted and accompanied by tooltips that explain their function, such as indicating that a referenced issue will be closed upon the merging of a pull request.