Reaper patch notes and update history (Modern Warfare 4)

Every public Reaper build for Modern Warfare 4, newest first, with the notes that shipped with it. Updates are free and install from the browser in about a minute. This page is generated from the same release registry the installer uses, so it is always current.

Reaper 1.3 (2026-08-31)

Reaper 1.3 closes the rapid-fire teardown gaps so no extra shot fires after disable, stops Automatic Rapid Fire self-engaging on anti-recoil-Off profiles, makes quick toggles save without the full apply pass, clears Vehicle Mode state on every exit, and stops the quick editor opening during the menu chord.

• Every rapid-fire disable path now stops the firing combo and clears the latched rate, so no extra shot fires after disable and a new weapon can never inherit the old weapon's rate.
• Automatic Rapid Fire can no longer switch itself on for a profile whose anti-recoil mode is Off.
• Gameplay quick toggles now save your settings without re-running the full apply pass, so the recoil curve and controller remapping are untouched mid-fight.
• Vehicle Mode clears all held script outputs on both of its exit paths.
• The weapon quick editor can no longer open while the Menu button is held, so the menu chord always opens the full menu.
• The Zen idle screen now shows GAME VIBRATION OFF whenever Weapon or Automatic recoil fires with game vibration off, so the hidden vibration requirement is finally visible.

Reaper 1.0 (2026-08-22)

Reaper 1.0 for Modern Warfare 4 with ISO Nightshade and Han 86 profiles, clean Zen headers, and a dedicated public install channel.

• Public MW4 launch build with a dedicated Reaper install channel.
• Weapon mode includes ISO Nightshade and Han 86 named profiles.
• ISO Nightshade has a verified owner-only three-stage recoil curve.
• Han 86 has a verified owner-only three-stage recoil curve.
• Removed the V7 and P1/P2/P3 corner labels from every Zen menu page.
• Automatic applies the ISO Nightshade profile as a fixed fallback and does not detect the equipped weapon; Han 86 is selected manually in Weapon mode.
• Includes the REAPER boot identity and humanization layer.

How to update

Plug the Zen into a PC, open the Reaper page, and install the current build. Your profiles carry over. Help is in the Discord.