Source: http://forum.worldoftanks.asia/index.php?/topic/44290-93-supertest-patch-notes/

• New high-tier light tanks added: U.S.A.: T37 (Tier VI), M41 Walker Bulldog (Tier VII), T49 (Tier VIII). U.S.S.R.: LTTB (Tier VII), -54 lightweight (Tier VIII). Germany: Spahpanzer Ru 251 (Tier VIII).

• The M24 Chaffee, Tier V American light tank, fully rebalanced.

• The KV-1S Soviet heavy tank fully rebalanced, its tier changed from VI to V.

• The KV-85, a new Soviet heavy tank, added to Tier VI to replace KV-1S.

No free tanks for you.

• The T-34-85M, a new Tier VI Soviet medium tank, added for testing by the Supertest players.

• Models of the following vehicles reworked in HD quality: ISU-152, -34, IS-7, M3 Lee, M5 Stuart, Jagdpanther.

• Characteristics of the following vehicles improved: Object 430, M6A2E1, 92 SPG.

M6Alien buff is long overdue, but it's finally here.

• Characteristics of the following vehicles decreased: Hellcat, 18, FV304, T57 Heavy.

Conflicting reports on T57 nerf: some sources say it's delayed until 9.4

• Enhanced Suspension module for the M46 Patton tank added.
• Pz.Sfl.V, Tier VII German tank destroyer, renamed to Sturer Emil.
• Suspension durability for Tier VVIII light tanks increased.
• Several characteristics of the M5 Stuart tank changed.

Top howitzer replaced by autoloading 37mm.

• The Murovanka map fully reworked: dimensions of the map increased from 800800 m to 10001000 m; some features of gameplay on the map rebalanced.

Magic forest replaced by Magic Pimples

• Visual effects of explosions and burning added for the following environmental objects: cisterns, barrels with fuel, cars, canisters, ammo boxes.
• Design of the top panel in the Garage reworked.

More Xbox features arriving, a good change

• Following new features for Stronghold added: legionaries (players can now engage in Skirmishes even if they are not in a clan) and the Chancellery, which relays unique Special Instructions to clans.

Now you can roll with the best instead of being dragged into daily training and CW sessions from 7pm to 11pm while having studies

• Following effects of vehicle destruction overhauled and expanded: ammunition burning, ammunition exploding, fuel exploding, destruction by ramming and by falling, destruction of crew, vehicle drowning, and basic vehicle destruction.
• Information about quality of connection in the server selection menu added.
• Chat panel in the Garage reworked: new style of buttons, new mechanics of tab opening, panel scrolling, online player count and the count of players in the Contact list.
• Interfaces of battle mode selection, Platoon creation, and the Invite players screens reworked.
• Disciplinary penalties for the following instances of unsportsmanlike conduct added: inaction in battle, exiting the battle before vehicle is destroyed, self-destruction.
• Awards from the Battle Heroes category can now be obtained by multiple players.
• Set of easily-obtainable awards added: Shellproof, Battle Buddy, Spotter, Fire for Effect, Fighter, Duelist, Demolition Expert, Arsonist, Bruiser, Hand of God, Eye for an Eye!
• Bonus to combat experience which rewards vehicle non-penetration/ricochet added, applicable only when an enemy shell hits the vehicles hull (original trajectory of the shell must cross the hull), but does not reduce its HP.

Don't get over-excited. It's only for shells you bounce (no track-absorbing gimmicks), and we don't know how significant the reward is

• Sound filter inside the vehicles turret reworked.
• Following awards for the Historical Battles mode with no progress bar removed: Guardsman and History Maker.
• Mechanics of shells ricochet after it hit the vehicle reworked: now it continues to move instead of disappearing.

• Each of values for obtaining Marks of Excellence reduced by 7 points (58% instead of 65% for obtaining one Mark of Excellence, etc.).

• Tier VIIIX vehicles with transmission in front are no longer set on fire when a shell hits the suspension.

Collective German Heavy player sigh

• Issue when player could not send a complaint on an ally with reason Inaction/Bot in battle results window fixed.
• Some memory leaks in the battle fixed.
• Some crashes and hang-ups of the game client fixed.
• Performance of the game client on some PC configurations improved.
• Playback of sound effects optimized.
• Consumption of video memory reduced.

How? I must know how much it will mess up my mods

• Issue when tracer ammunition was displayed on the opposite side of the vehicle after non-penetration fixed.
• Some issues with interface in Stronghold fixed.
• Brief rotation of the vehicle upon its spotting in some cases fixed.
• Issue, when upon spotting a vehicle its tracks were displayed first followed by the vehicle itself, fixed.
• Minor bugs fixed in visual models of the following vehicles: SU-100, Hellcat, Tiger I.

There's been an errata:

• Tier VIIIX vehicles with transmission in front are no longer set on fire when a shell hits the suspension. not suspension, transmission

So it's confirmed, transmission will not set our german beasts on fire.