Lots of new stations and missions, syndicate campagnes where the syndicate comes together to fight enemy waves and gets really good loot from it, new ships and QoL travel improvements for ships, lots of new equipment (most of it drops on campagnes), bodyguards that protect you if you're attacked (with multiple teers of guard), overhaul for side jobs (some of them have little side events where you have to make choices), fuel and market prices are now based on the economic status and activity on a station (e.g. peple doing career tasks there), new combat mechanics and combat sounds, ships can now have storage lockers for equipment.
There's a full list on tauguide.de at the botum list of links. Every entry on that list links to the respective update changelog.

hi.

@firefly82, I don't think so.

I'm trying the game again and the story seams really good so i'll probably play as much as i can for that.

I'm on a mission and have no idea how to get back to it though so have reported it to the staff. I've opened my VIP pac so my stats are all 100 percent, then go back to the main mission link but all I can find is abort mission and some mile stone buttons, opening them does nothing.

no, it's not that long to travel, well depend on the distent but it usually takes a few minutes. there is a section somewhere on the guide that explains about time. pay etention to the countdown as well.

hi guys. i am about to play this game. before i play, i want to ask a question. is there only pvp exist or is there pve system also exist?

Pvp is a thing, but if you stay in your hotel room while not doing anything important and if you regularly put your money into the bank, you should be safe. Most players that do pvp are on higher level stations most of the time anyway, so in the Sol system at least you should be safe almost all the time. Tau station doesn't allow pvp at all. Just remember to buy a clone if you're going to a station with no sick bay on it and plan to spend a lot of time there.
There's PVE opportunities in the ruins, you can either look for trouble which can give you one enemy to fight, or a sewer campagne that makes you fight 6 of them for rewards. And syndicates have their campagnes of course.

Hi.
I remember I briefly took a look at the game long time ago, but I never got into it.
Does the game require you to play every day, or can you take a break from the game for a few days, week or so?

You can leave the game and come back whenever you want. Just keep in mind that if you aren't active, you won't receive your career salary and if you're not VIP, you won't get anymore rations. If you're VIP, rations stop acumulating after a month of not picking them up. Syndicates also want you to do stuff at least occasionally, but how much that is depends on the syndicate. In TAU and TTU, it seems to be enough if you log in occasionally to do some discreet work or career tasks, since even those small things give the syndicate experience.