Main Changes

New American Medium Tank Branch

A new branch of American medium tanks will be added in Update 2.1.1: it is researched from the T20 (Tier VII), begins with the Ares 75 (Tier VIII), and ends with the Ares 90 C (Tier XI).
All vehicles in the branch will be available for testing except for the Ares 90 C, which can only be viewed in the Tech Tree with non-final characteristics.
Like the rest of the branch, the Ares 90 C is equipped with an autocannon featuring a heat-management system: the Thermal Overheat Control Autocannon.
The system allows the gun to fire continuously without the need for reload. Each shot generates heat: the higher the gun's temperature, the more some of its parameters change. Continuous firing will cause the gun to overheat, preventing further firing until it cools down. 
All vehicles in the branch also feature the reserve track mechanic.

New Tier XI Vehicles

Two new researchable Tier XI vehicles that continue the existing vehicle branches have been added to the Tech Tree with non-final characteristics (they will not be available for testing):

PTZ-78 — Chinese tank destroyer, researched after the WZ-113G FT. It features Sequential Rocket Thrusters that boost acceleration, mobility, and maneuverability for several seconds. The left and right thrusters can operate independently, allowing for faster hull traverse without compromising reverse movement capability. 

STK-2 — Japanese heavy tank, researched after the Type 71. It features Active Gun Cooling: its gun heats up when fired, which negatively affects its accuracy. After each shot, it begins cooling down and returning to its base parameters during reload, allowing for more accurate firing.

Post-Battle Results Screen

A new Mission Progress tab has been added to the post-battle results screen. Next to the tab, an animation with mission names is shown, along with a counter of missions completed in the previous battle.

The Mission Progress tab displays detailed information on both completed missions (at the top of the list) and missions for which progress was made in battle. Players can navigate to the corresponding sections for full lists of missions of each type, as well as to the vehicle and module research screens.

The following types of progression are supported:

• New or maximum vehicle Elite Level

• Battle Pass Stage and Chapter progress

• Tank Academy missions

• Regular missions

• Daily, Weekly, Bonus, Premium, and Epic missions

• The Sector 3 Personal Missions campaign

• New vehicle or module available

Onslaught

Main Changes:

• The Season of the Crimson Dragon has been added.

• Detailed Seasonal Statistics have been added to the main mode screen. 

• The LTC II (Tier IX American light tank) has been added to the Onslaught Shop. 

• Telescopic Observation System and Tactical Concealment Net have been added to the Onslaught Shop.

• Telescopic Observation System and Tactical Concealment Net are now available as rewards for completing weekly missions.

• Improved Final Drive has been removed from the Onslaught Shop and will available for direct purchase with bonds in the regular in-game Store after its next update. 

New Content for the Season of the Crimson Manticore:

• Progressive Rex Draconis (Crimson) style with a new set of decals, emblems, inscriptions, and camouflage patterns.

• Dog Tag Backgrounds: Iron, Bronze, Silver, Gold, Champion, and Legend.

• Supernova nickname stripe.

• Badges: Burning Oath, Crown of Flame.

• Medal: Trial by Fire.

• Rental vehicles: Super Conqueror 7x7, K-91 7x7, Ho-Ri 3 7x7.

Other Changes:

• Comms Center recapture time has been decreased from 90 to 75 seconds.

• Map added: Erlenberg

• Map removed: Klondike

• Adjustments have been made to the following maps:

  • Studzianki

  • Mines

  • Oyster Bay

  • Murovanka

  • Sand River

  • Siegfried Line

• New vehicle available: 114 SP2

• The Ares 90 Tier X American medium tank is temporarily unavailable in the mode.

Sound Physics Simulation in Onslaught

The new geometry-based sound physics system introduced in Update 2.1 has been expanded to Onslaught maps: Ensk, Cliff, Pilsen, Oyster Bay, Siegfried Line, Himmelsdorf, Murovanka, Safe Haven, Airfield, and Ruinberg.
The effects, which include sound transmission, diffraction, and reflections, are designed to help players more accurately locate enemies and allies using audio signals. They may slightly increase system load.

Frontline

The mode interface has been further updated to match the WoT 2.0 design: among other changes, the Vehicle Playlists have been added.

Arcade Cabinet

Resources for the event have been added.

Outstanding Collector Achievement

The Outstanding Collector achievement, previously tied to the 2.0 Gift, can now be earned at any time.
How to earn: Players must have every researchable Tier VI–X vehicle that was in the game when Update 2.0 was released in their Garage. New vehicle branches are not required.
Rewards: Unique collector's stripe, badge, and medal.
Players can check their progress toward the rewards in the Service Record by going to the Awards tab and hovering over the Outstanding Collector's medal icon in the Special section.

Customization

A large number of 2D styles, decals, camouflages, and paints that were previously limited to Tier VIII–X vehicles can now be applied to Tier XI vehicles.

Vehicles

The following Tier XI vehicles have had multiple characteristics updated: AS-XX 40 t, Strv 107-12, CS-67 Szakal, Leopard 120 Verbessert, Object 432U, Hirschkäfer
The characteristics of the following vehicles will also be updated: EMIL 1951, IS-2M, ISU-152K, KV-1 shielded, M10 RBFM, M41D, Panther/M10, T-28E with F-30, Т-34-85М

U.S.S.R.

The following vehicles have been added: Buryan, KB-52

Changes to the technical characteristics of the following vehicles have been made:

T-34-85M

Power of the V-2-34 engine has been changed from 500 h.p. to 540 h.p.

T-28E with F-30

Power of the M-17L 1,445 r/min engine has been changed from 500 h.p. to 540 h.p.

IS-2M

Power of the V-54K-IS engine has been changed from 600 h.p. to 650 h.p.

ISU-152K

Dispersion of the 152 mm BL-10A gun has been changed from 0.43 m to 0.42 m
Aiming time of the 152 mm BL-10A gun has been changed from 3.5 s to 3.4 s

KV-1 shielded

Power of the V-2K engine has been changed from 500 h.p. to 550 h.p.

Object 432U

Reload time of the 125 mm D-181 gun has been changed from 12 s to 11.5 s
Hull armor thickness has been changed from 40 mm to 55 mm
Vehicle durability with the Object 432U turret has been changed from 2,150 HP to 2,200 HP
Time to reach heat levels has been changed from 1.5/3.5/5 s to 1/2.5/3.5 s
Time before charge overheating has been changed from 3 s to 6 s
Charge overheating duration has been changed from 6 s to 4 s

Germany

Changes to the technical characteristics of the following vehicles have been made:

Leopard 120 Verbessert

Dispersion during movement of the Leopard 120 Verbessert suspension has been decreased by 10%
Dispersion on hull traverse with the Leopard 120 Verbessert suspension has been decreased by 10%
Dispersion of the 12 cm Rheinmetall L/44 gun has been changed from 0.34 m to 0.32 m
Vehicle durability with the Leopard 120 Verbessert turret has been changed from 1,900 HP to 1,950 HP
Velocity of the DM 12 MZ shell has been increased by 36%

Hirschkäfer

Dispersion on turret traverse of the 12 cm Rheinmetall Geweih gun has been decreased by 9%
Reload time of the 12 cm Rheinmetall Geweih gun has been changed from 13.1 s to 12.9 s
Damage of the DM12 MZS shell has been changed from 550/800 HP to 600/800 HP
Damage of the DM13S shell has been changed from 550/800 HP to 600/800 HP

Panther/M10

Dispersion on turret traverse of the 7,5 cm Kw.K. 42 L/70 gun has been decreased by 9%
Aiming time of the 7,5 cm Kw.K. 42 L/70 gun has been changed from 2.3 s to 2.1 s

U.S.A.

The following vehicles have been added: Ares 75, Ares MTB, Ares 90, Ares 85, Ares 90 C

France

The following vehicles have been added: Lorraine 120 Alby, Leox, Terrifiant

Changes to the technical characteristics of the following vehicles have been made:

M10 RBFM

Top forward speed has been changed from 48 km/h to 50 km/h

AS-XX 40 t

Dispersion during movement of the AS-XX 40 t suspension has been decreased by 10%
Dispersion on hull traverse with the AS-XX 40 t suspension has been decreased by 10%
Dispersion on turret traverse of the 118 mm D. 1507AS gun has been decreased by 25%
Dispersion after firing of the 118 mm D. 1507AS gun has been decreased by 17%
Reload time of the 118 mm D. 1507AS gun has been changed from 36 s to 33 s
Velocity of the OFL AS shell has been increased by 38%
Top reverse speed has been changed from 23 km/h to 24 km/h
Vehicle durability with the AS-XX 40 t turret has been changed from 1,900 HP to 1,950 HP
The amount of HP granted by the Hit Points (HP) Upgrade has been changed from 100 HP to 50 HP
The bonus to dispersion during movement and hull traverse granted by the Partial Gun Stabilization Upgrade has been changed from -10% to -5%
The bonus to reverse speed granted by the Reverse Speed Upgrade has been changed from +2 km/h to +1 km/h

China

The following vehicle has been added: PTZ-78

Changes to the technical characteristics of the following vehicles have been made:

M41D

Dispersion during movement of the M41D suspension has been decreased by 29%
Dispersion on hull traverse with the M41D suspension has been decreased by 29%
Dispersion on turret traverse of the 76 mm M32K1 gun has been decreased by 33%

Japan

The following vehicles have been added: Kame, STK-2

Czechoslovakia

The following vehicle has been added: ZŤS Vz.63-1 Ogar

Poland

Changes to the technical characteristics of the following vehicles have been made:

CS-67 Szakal

Dispersion during movement of the CS-67 Szakal suspension has been decreased by 17%
Dispersion on hull traverse with the CS-67 Szakal suspension has been decreased by 17%
Dispersion of the 115 mm armata U-5TS gun has been changed from 0.36 m to 0.34 m
Reload time of the 115 mm armata U-5TS gun has been changed from 8.9 s to 8.6 s
Top reverse speed has been changed from 15 km/h to 17 km/h

Sweden

Changes to the technical characteristics of the following vehicles have been made:

EMIL 1951

Dispersion during movement of the EMIL 1951 E1 suspension has been decreased by 7%
Dispersion on hull traverse with the EMIL 1951 E1 suspension has been decreased by 7%
Traverse speed with the EMIL 1951 E1 suspension has been changed from 28 deg/s to 30 deg/s

Strv 107-12

Time to switch from Drive mode to Pillbox mode has been changed from 8 s to 5 s
Time to switch from Siege mode to Pillbox mode has been changed from 6 s to 3 s
Time to switch from Pillbox mode to Siege mode has been changed from 4 s to 3 s
Time to switch from Pillbox mode to Drive mode has been changed from 5 s to 4 s
The bonus to reload time in Pillbox mode for the 10,5 cm kan strv 107 L/62 gun has been changed from -5% to -7.5%
The bonus to dispersion in Pillbox mode for the 10,5 cm kan strv 107 L/62 gun has been changed from -10% to -15%

Fixed Issues and Improvements

• Fixed the issue of interface elements in the Garage becoming inaccessible in some cases.
• Nordskar (square E1) and Siegfried Line (squares F6-F7, after the Random event): terrain has been adjusted on the maps to prevent vehicles from getting stuck.
• Fixed the issue of the Mission Re-roll interface freezing.
• Fixed the issue of the Commander description text not fitting into the tooltip window at x2 interface scaling.
• Fixed the issue of the client freezing during the Sector 3 Campaign videos when opening received notifications.
• Fixed the issue of empty space appearing when players sold vehicles from the end of the vehicle panel.
• Fixed the issue of the description for the Bloc-6 mission of the Chimera Operation not being displayed when pressing N in battle.
• Fixed the issue of the Back button not returning players to Customization interface from the Cart screen.
• Fixed the issue of an activated Clan Reserve locking the remaining ones.
• Fixed the issue of icon inconsistency for T67 in different interfaces.
• Fixed the issue of the effects behind the activated jet boosters on the terrain not being displayed.
• Fixed the issue of the Sixth Sense indicator being continuously displayed in replays after rewinding.
• Fixed the issue of the Recon Flight and Sixth Sense indictors being displayed instead of the Sixth Sense icon when the vehicle was spotted in the Onslaught mode.

Known Issues

• In some cases, if the player does not have enough resources to research modules, the automatically triggered XP exchange window may display incorrectly.

Onslaught

• Images for newly added Tactical Concealment Net and Telescopic Observation System are missing in the reward selection screen for weekly missions.
• Issues with loading the new progression screen (in some cases).