Where is the history dedup command?

Hi there

Wanted to give a shot at explicitely running a “atuin history dedup” command. But nothing under history ? Updated just in case, not better. Looked in the changelog, searched here and there… what am I missing ?


➜ atuin update
Checking for updates…
Already up to date; not upgrading
➜ atuin history

Manipulate shell history

Usage: atuin history <COMMAND>

Commands:
  start       Begins a new command in the history
  end         Finishes a new command in the history (adds time, exit code)
  list        List all items in history
  last        Get the last command ran
  init-store  
  prune       Delete history entries matching the configured exclusion filters
  help        Print this message or the help of the given subcommand(s)

Options:
  -h, --help  Print help

Here’s the doctor output

Atuin Doctor
Checking for diagnostics


Please include the output below with any bug reports or issues

{
  "atuin": {
    "version": "18.5.0",
    "sync": {
      "cloud": false,
      "records": true,
      "auto_sync": true,
      "last_sync": "2026-04-13 11:22:50.549650547 +00:00:00"
    },
    "sqlite_version": "3.46.0"
  },
  "shell": {
    "name": "zsh",
    "default": "zsh",
    "plugins": [
      "atuin"
    ],
    "preexec": "built-in"
  },
  "system": {
    "os": "Ubuntu",
    "arch": "x86_64",
    "version": "25.10",
    "disks": [
      {
        "name": "/dev/mapper/ubuntu--vg-ubuntu--lv",
        "filesystem": "ext4"
      },
      {
        "name": "/dev/nvme0n1p2",
        "filesystem": "ext4"
      },
      {
        "name": "/dev/nvme0n1p1",
        "filesystem": "vfat"
      }
    ]
  }
}

I think you might have two versions of atuin in your PATH. Double check with which atuin

atuin update will manage the version in ~/.atuin/bin, otherwise I suspect you have a Ubuntu version somewhere!