We, mp 3 beta testers got rights from Nadeo with Hylis on top to tell you some changes and improvements in upcoming update.

There is a list of some things from changelog:
Maniaplanet:
- Steam games in maniaplanet: you will be able to connect maniaplanet account with steam one
- Ristrictions for manialinks: the adress must be validated and element image has been removed from quad
- Micro transactions: buying planets on dedicated webpage
- chosing your sex in profile to improve translations
- echelons 10 - 12 (nadeo medal color)
- Multi-game environment server: on one map you will can ride track and play elite 4 vs 4 edition
- All data from custom title packs will be included directly in vanilla game
- More interaction with maps: collideable dynamic items
- Blockmixing will be forbidden: blockmixing maps wont be able to play
- ChewedMania: the new gummibears sold in 250 gramm packages.
Shootmania:
- new weapon: Beam (laser that hold fire and eliminate everyone who touch the ray)
- elite improvements: removed microjumps
- water pools on higher terrain levels (trench)
- prealpha blocks
- teleport block: teleports to random location on whole map, 4/5 for death after touching ground
- new gamemode: battle of minions (with small bots like in invasion)
- blocks: high glass towers, orient china houses, small stone bunkers
- movement: sneaking, back and front flips
- script: event on +0, placing invisible walls
- smaller hud
- combo items directly in storm title
- gate block (openable with script, modified forge custom block)
- title pack: battle waves
- action maker
- picking up things: press e to pick up item, bot or player from back
Trackmania:
- more roads for canyon and valley
- valley platform checkpoints with chooseable respawn position
- script: player position and changeable maxspeed, acceleration and car model
- skins: custom hitboxes and speed variables in xml file
- collisions (can disable in server settings)
- insta-turn block: drive to it and escape in selected by mapmaker direction
Overall:
- new netcode
- removed Herobrine
Like in our closed forum here you can put your post with top 5 changes in update.

My top 5:
- new weapon beam
- collisions
- steam interaction
- action maker
- battle title pack