New year, new release - Kali 2026.1 is here. There is everything from a fresh coat of paint to a nod to our roots, with normal ongoing improvements. Building on from December's 2025.4, the summary of the changelog: 2026 theme refresh - our yearly theme refresh; BackTrack mode for Kali-Undercover - a new mode celebrating BackTrack's 20th anniversary; Kali’s 13th birthday event - a little community event; new tools - 8 new programs. 2026 marks the 20th anniversary of BackTrack Linux, the predecessor to Kali. To celebrate this milestone, we wanted to bring back some nostalgia for longtime users of this legendary cybersecurity distribution by adding a 'BackTrack mode' to kali-undercover. This mode transforms the desktop to recreate the look and feel of BackTrack 5, with the same wallpaper, colors and window themes. You can run it directly from the menu or by running kali-undercover --backtrack in the terminal.