Saved replies, a feature available for nearly two years, allows users to quickly respond to multiple issues and pull requests, now enhanced with keyboard shortcuts for increased accessibility. By pressing Ctrl followed by a period while composing or replying, users can activate their saved replies and select their preferred response using a number, such as Ctrl 2. If a saved reply ends with a # or @, it will attempt to autocomplete an issue or pull request number, or a username. Further details and guidance on using these features can be found in the documentation, as explained by Mike McQuaid.