GNU nano 9.1 released with old Mac file format removal, viewport search tweaks, and more

GNU nano 9.1, released more than two months after the 9.0 milestone, introduces several notable changes for users of this text editor for Unix-like operating systems. The update places the viewport snugly to the left during search operations when possible, improving the search experience and screen use.

Following this, the ability to read or write files in the legacy Mac format using single carriage returns for line endings has been removed. This adjustment impacts those working with very old Mac documents. Additionally, users who previously relied on the ^T shortcut to toggle between the WhereIs and GotoLine commands will notice its removal, prompting changes in navigation habits.

Regarding data integrity, backup behavior under the --backup flag has been refined. Issues where backups sometimes failed to save or had incorrect timestamps have now been corrected. If nano crashes or is forcibly closed, any resulting .save file is not assigned the permissions or ownership of the original file, altering expectations for file recovery scenarios.

Building on improvements for user customization, the M-Ins and M-Del keys are now fully rebindable. This release also contains a variety of additional improvements and fixes throughout the editor, as documented in the full changelog.