This issue is for quick questions or comments about tmux 3.6. Do not use this issue for bug reports, they will be ignored. For bug reports please open a new issue with full information, see CONTRIBUTING.

Note that it is very important to restart tmux entirely after upgrading. This is particularly important with this release because one of the libraries that tmux uses changed its protocol. If you see this message when you try to attach it probably means you forgot to restart tmux:

open terminal failed: not a terminal

This release has many mostly small additions, improvements and bug fixes; the most significant changes are listed in the 3.6 CHANGES file. Many thanks to everyone who contributed and apologies to anyone who has been missed.

A few of the more notable changes are:

• Support for scrollbars (see the pane-scrollbars option), from Michael Grant. Michael has also contributed a number of other features, bug fixes and code improvements.

• Mode 2031 theme support, from Jonathan Slenders.

• Improvements to format operators (such as boolean expressions and #? from David Mandelberg and sorting for loop operators from Michael Grant) and new variables for buffers, sessions and cursor styles.

• Improvements to how tmux requests and reports information:

  • the ability send pixel size queries (from Dmitry Galchinsky);
  • forwarding of OSC 4 palette queries (prompted by a change offered by Tim Culverhouse);
  • support for reporting cursor, mouse, paste and focus state (from Andrea Alberti);
  • and querying of clipboard support (from James Holderness).

Note that as always due to limited time patch releases will only appear due to security issues or immediately obvious or showstopper bugs, so I encourage everyone to test the master branch ahead of the next release where they can.

The issue for the previous 3.5a release is here (now locked).