message: Add the supported version for `active_on_launch`.
diff: @@ -102,7 +102,7 @@ active_on_launch: False
  ### Activate Mozc on launch
  `active_on_launch` represents the default input. If it's True, Hiragana input is
  -the default mode.
  +the default mode. `active_on_launch` is supported by 2.26.4317 or later.
  Sample configuration:
  