Guild Wars 2

I just got back into the guild wars 2 game after a year of absence can someone please advise me on how this new trait system works? The one i was here for was the second trait system update with the megaserver.
Thank you

You now buy your traits and core skills with Hero Points. There are 5 Specializations (old trait lines) and you can buy the traits in those lines, in order, for whatever number of HP each trait needs. You can choose which specialization to put HP in but you have to buy the traits within a specialization in order.

However, you can only have one specialization active starting at level 21, two starting at level 45 and three at level 71. You can switch up which specializations are being used and which minor/major/grandmaster traits are active at any time out of combat for free. You can’t reallocate HP previously spent.

Skills are similar, broken into different types but you must buy the skills in those types in order.

You have enough HP from leveling alone to buy all skills and all traits in all 5 specializations available in the core game.

The wiki is your friend

http://wiki.guildwars2.com/wiki/Hero_point
http://wiki.guildwars2.com/wiki/Specialization
http://wiki.guildwars2.com/wiki/Trait

Ok thank you i appreciate the help ill look at those

Also: Traits no longer all unlock when you are upscaled (IE: WvW) and must be unlocked. (Originally traits all unlocked save for rare ones but only while upscaled.)