ターミナルマルチプレクサのtmux 3.6 が出ていました.
早速ビルドしてみます.今回はgit リポジトリから導入します.
$ git pull $ git checkout 3.6 $ ./autogen.sh $ ./configure --enable-sixel --prefix=$HOME/usr/local (1) $ make $ ./tmux -V tmux 3.6
sixel を有効にし,$HOME/usr/local 以下に導入
tmux が起動しない?旧tmux が生きていたせいでした.
$ ./tmux open terminal failed: not a terminal $ pgrep tmux 14030 $ tmux kill-server $ ./tmux $ ./tmux kill-server
intall
$ make install $ which tmux /home/matoken/local/bin/tmux $ tmux -V tmux 3.6

環境
$ tmux -V tmux 3.6 $ dpkg-query -W autoconf automake pkg-config libevent-dev ncurses-bin autoconf 2.72-3.1 automake 1:1.18.1-3 libevent-dev 2.1.12-stable-10+b1 ncurses-bin 6.5+20251123-1 pkg-config:amd64 1.8.1-4 $ lsb_release -dr Description: Debian GNU/Linux forky/sid Release: n/a $ arch x86_64
追記
Debian sid にtmux 3.6 が降りてきました.sixel も有効になっています.パッケージ名にaがつくのはなんでだろう?tmux 3.5a が存在したようにtmux 3.6a がリリースされたら当たりそうだなとも.
$ /usr/bin/tmux -V
tmux 3.6
$ zgrep -B99 -m1 — – /usr/share/doc/tmux/NEWS.Debian.gz
tmux (3.6a-1) unstable; urgency=mediumPlease restart tmux entirely after upgrading to 3.6: an old server and a new client will not be fully compatible with each other and the new client may hang.Note: if necessary the old client can be used via /proc/pid/exe to talk to the old server, e.g. `/proc/$(pgrep "tmux: server")/exe attach'.-- Sébastien Delafond <seb@debian.org> Mon, 01 Dec 2025 16:44:38 +0100 $ rmadison tmux tmux | 3.1c-1+deb11u1 | oldoldstable | source, amd64, arm64, armhf, i386 tmux | 3.1c-1+deb11u1 | oldoldstable-debug | source tmux | 3.3a-3 | oldstable | source, amd64, arm64, armel, armhf, i386, mips64el, mipsel, ppc64el, s390x tmux | 3.5a-2~bpo12+1 | oldstable-backports | source, amd64, arm64, armel, armhf, i386, mips64el, mipsel, ppc64el, s390x tmux | 3.5a-2~bpo12+1 | oldstable-backports-debug | source tmux | 3.5a-3 | stable | source, amd64, arm64, armel, armhf, i386, ppc64el, riscv64, s390x tmux | 3.5a-3 | testing | source, amd64, arm64, armhf, i386, ppc64el, riscv64, s390x tmux | 3.6a-2 | unstable | source, amd64, arm64, armhf, i386, ppc64el, riscv64, s390x tmux | 3.6a-2 | unstable-debug | source