Patch Notes - July 21st 2026

by Matt Newman in [ Patch Notes ] on, Jul 14, 2026 9:00 PM UTC 55  comments


Patch Date and Time - July 21st, 2026 @ 10AM - 1PM PACIFIC



Greetings MechWarriors!


This month’s update includes the release of the Yen Lo Wang 2, 'mech adjustments, quirk adjustments, and more!

As always, a 2 week in-game Patch Science Sale will go live shortly after the patch and include all applicable items for testing.

'Mechs in-game and new 'mechs releasing are subject to future balance changes and tuning, so get out there and do the science so we can hear your feedback!


The MechWarrior Online Team

 

MWO Championship Series

It’s that time of the year again, the MWO Championship Series is upon us! Comp Queue will be made visible in the July patch allowing players to set their teams. The first day of queue will be on August 6th and run until October patch.

More information can be found on the MWO Comp third party discord here

They have also provided a one pager on all info needed for playing comp queue here


You can show your support for MWO COMP 2026 via the

Tournament Supporter Pack


 

Centurion Yen Lo Wang 2 legend

It’s been a minute since our last legend, but the Yen Lo Wang 2 has come from Mercs to MWO!

The Yen Lo Wang 2 will be available VIA the MWO Store and Steam

 



Weapon Changes

  • Reduced Railgun and Clan Railgun base damage to 20 (from 24)

    • Splash damage remains the same

    • Each capacitor remains at an 8 damage boost

  • Reduced Railgun and Clan Railgun cooldown to 6.5 (from 7.5)

The cooldown buff leaves Railguns damage-per-second comparable to what they were before, the problem with the weapon is not the DPS but rather the pinpoint damage.

 

Map Changes

  • Reduced fog on Caustic Valley and Caustic Valley (Classic)

 

Store Changes

  • Annihilation Booster Pack released for MC

 

Item Changes

  • The TSP 2026 warhorn has been given the intended sound and model. It is now named 2026 instead of the 2018 item

 

Mech Changes

  • Reduced Vulcan VT-5S accel/decel to 66.16/76.25 (from 75.39/83.75)

  • Reduced Sunder CT size in pelvis

  • Increased Sunder Twist Range to 120 (from 90)

 

Quirk Changes

Clan Flea

  • FLE-W-C

    • Increased SRM Ammo to 120 (from 60)

Flea

  • FLE-17

    • Added 4 Structure to LA RA

  • FLE-15

    • Added 50% HMG, MG, LMG, Magshot Ammo

  • FLE-R5K

    • Added 20% Small Laser Range

Fire Moth

  • All Variants

    • Reduced Full Body Structure to 6 (from 9)

    • Increased LA and RA Armor to 18 (from 15)

Piranha

  • PIR-1

    • Increased All Armor to 7 (from 6)

  • PIR-2

    • Increased All Structure to 7 (from 6)

  • PIR-3

    • Increased All Structure to 7 (from 6)

  • PIR-A

    • Increased All Armor to 9 (from 8)

  • PIR-B

    • Increased All Armor to 9 (from 8)

  • PIR-D

    • Increased All Structure to 10 (from 9)

  • PIR-CI

    • Increased All Structure to 6 (from various values)

Cicada

  • CDA-3F

    • Removed -10% ERPPC Cooldown

Trebuchet

  • TBR-5J

    • Reduced STD Laser Duration to -30% (from -40%)

Black Lanner

  • All Variants

    • Reduced CT LT RT LA RA Armor to 10 (from 12)

Archer

  • ARC-5S

    • Added -10% Energy Cooldown

    • Added -10% Energy Heat

    • Added 10% Energy Range

    • Removed -10% Cooldown

    • Removed -10% Heat

    • Removed 10% Range

Summoner

  • All Variants

    • Reduced Full Body Structure to 10 (from 15)

  • SMN-D

    • Removed -25% ER Laser Duration from So8

    • Increased Laser Duration in So8 to -20% (from -10%)

    • Increased LA RA Armor in So8 to 15 (from 10)

  • SMN-G

    • Reduced Pulse Laser Range in CT to 10% (from 20%)

Night Gyr

  • All Variants

    • Added 50% Jumpjet Initial Thrust to CT

    • Added 15% Jumpjet Burn Time to CT

  • NTG-PRIME

    • Added -10% Heat to CT

    • Added 20% Weapon Velocity in So8

    • Increased Ballistic Cooldown in So8 to -20% (from -10%)

    • Removed 10% Ballistic Velocity from So8

    • Removed -10% Ballistic Heat from So8

    • Removed 5% Range from So8

    • Removed 5% Heat Dissipation from CT

  • NTG-A

    • Added 7.5% Range to CT

    • Added Energy HSL +1 to So8

    • Increased Velocity in So8 to 25% (from 15%)

    • Removed -2.5% Heat from CT

    • Removed -10% Missile Cooldown from So8

  • NTG-B

    • Added -50% Jam Chance to So8

    • Increased Velocity in CT to 15% (from 5%)

    • Increased Ballistic Velocity in So8 to 10% (from 7.5%)

  • NTG-C

    • Increased Laser Duration in CT to -10% (from -2.5%)

    • Increased Range in So8 to 15% (from 10%)

  • NTG-D

    • Added 5% Heat Dissipation to CT

    • Added +100 Sensor Range to So8

    • Added Missile HSL +2 to So8

    • Increased Energy Range in So8 to 15% (from 5%)

  • NTG-H

    • Added -10% Laser Duration from So8

    • Added 10% Range in So8

    • Increased Cooldown in CT to -10% (from -2.5%)

    • Removed -10% Heavy Laser Duration from So8

    • Removed -10% Cooldown from So8

  • NTG-JK

    • Added 20% Weapon Velocity in So8

    • Added PPC HSL +1 in So8

    • Increased Range in CT to 7.5% (from 5%)

    • Removed 10% Missile Velocity from So8

    • Removed 20% ERPPC Velocity from So8

    • Removed -10% ERPPC Heat from So8

Sunder

  • All Variants

    • Increased CT Armor to 30 (from 15)

  • SD1-O

    • Added -15% laser duration to CT

    • Added 20% weapon velocity to SO8

    • Reduced SO8 laser duration to -10% (from -25%)

  • SD1-OA

    • Added Energy HSL +1 to CT

    • Increased Range in So8 to 15% (from 10%)

    • Removed Energy HSL +1 from So8

  • SD1-OB

    • Added 10% Range to CT

    • Removed 10% Range from So8

  • SD1-OC

    • Added -10% Cooldown to CT

    • Increased Range in So8 to 20% (from 10%)

    • Removed -10% Cooldown in So8

  • SD1-OD

    • Added 200% Jumpjet Initial Thrust to CT

    • Added 7.5% Jumpjet Burn Time to LT and RT

    • Removed 200% Jumpjet Initial Thrust from So8

    • Removed 15% Jumpjet Burn Time from So8

  • SD1-OE

    • Increased Top Speed in CT to 25% (from 10%)

  • SD1-OX

    • Added -10% Heat to CT

  • SD1-O-SAM

    • Added -10% Heat to CT

    • Removed -10% Heat from So8

While we were generally happy with how the Sunder released and performed, one issue we noticed was that the quirks were too focused on Set of 8 bonuses and removed the customization an OmniMech should offer. To remedy this, we have shifted quirks from the Set of 8 bonuses to center torso omnipods. This will give each variant its own place and grant players more customization with the mech.

Kodiak

  • KDK-4

    • Added PPC HSL +1

    • Removed -10% Heat



Patch Files (Direct Download) 

To make the patching process easier for players with limited download caps, we'll be providing direct download links for the patch file(s) that comprise this patch. This will allow you to download the patch file(s) elsewhere, for manual injection into the MWO patcher through a Patch Cache folder.

Aside from allowing you to download the patch file(s) elsewhere, on another connection, there are no additional benefits to performing the patch this way; the patching process itself will be the same.

This direct patch download process will only work for players running the standalone client. It does not apply to players running MWO through Steam.

Patch File(s): TBD

Download the above file(s)

For sake of ease, we recommend creating a dedicated folder for the patch file(s), such as 'MWO Patch Cache'

You do not need to unzip or unpack the patch file(s)

Launch the MWO Portal

Select the three horizontal lines in the top left of the Portal Window

Choose the 'Specify Patch File Cache' option

In the field that appears, paste or enter the location in which you saved the patch file(s) and hit OK

For example, C:\Users\<username>\Documents\MWO Patch Cache

Click the blue Patch button

The launcher will now check the Patch Cache folder you defined. If it locates the required patch files, it will unpack and use those files to apply the patch

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