Add -M to always turn mouse on in a menu, GitHub issue 3779.

Add an option menu-selected-style to configure the currently selected
menu item, from Alexis Hildebrandt.

Add options and flags for menu styles similar to those existing for
popups, from Alexis Hildebrandt. GitHub issue 3650.

Free title earlier, from Alexis Hildebrandt.

Do not leak screen in popups, GitHub issue 3492.

Add a flag to display-menu to select the manu item chosen first, GitHub
issue 3442.

Add -s and -S to display-popup to set popup and border style, from
Alexis Hildebrandt in GitHub issue 2931.

Add -T to set a popup title, from Alexis Hildebrandt in GitHub issue 2941.

Add popup-border-lines option to set popup line style, from Alexis
Hildebrandt, GitHub issue 2930.

Add -e flag to set environment for popup, from Alexis Hildebrandt in
GitHub issue 2924.

Replace %% in command lists (by copying them) for template arguments ,
this means they can be used with {} as well. Also make argument
processing from an existing vector preserve commands. GitHub iss

Replace %% in command lists (by copying them) for template arguments ,
this means they can be used with {} as well. Also make argument
processing from an existing vector preserve commands. GitHub issue 2858.

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Validate command argument types (string or command list) and give more
useful error messages.

Limit width and height to tty correctly, GitHub issue 2843.

Do not double free expanded path in source-file, also remove some
unnecessary assignments.

Add args parsing callback for some future work, currently unused.

Hide struct args behind a couple of accessor functions.

Add -B flag to remove border from popup.

Do not add height twice when calculating popup_mouse_top, from M Kelly.

Fix mouse_word format now word-separators has no space and position of
menu if too close to the bottom.

Fix display-menu -xR, from Alexis Hildebrandt.

Drop support for popups where the content is provided directly to tmux
(which does not have many practical uses) and only support running a
program in the popup. display-popup is now simpler and can

Drop support for popups where the content is provided directly to tmux
(which does not have many practical uses) and only support running a
program in the popup. display-popup is now simpler and can accept
multiple arguments to avoid escaping problems (like the other commands).

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Fix check for vertical centre.

Expand menu and popup -x and -y as a format, from teo_paul1 at yahoo dot
com in GitHub issue 2442.

Add a -O flag to display-menu to change the mouse behaviour and not
close the menu when the mouse is released, from teo_paul1 at yahoo dot
com.

Add 'e' key in buffer mode to open the buffer in an editor.