This blog post discusses some of the new capabilities of both releases

As you can see, Esri is developing two versions of the API at the same time, until 4.x reaches parity with 3.x. The API offers some new capabilities, such as dynamic layer support, a new IntegratedMeshLayer class and web scene writing. The new Sublayer class allows for a cleaner way of designing and configuring sublayers._ Azucena:With [...]
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Angelo:
Our dad is a flight attendant so he s gone for most of the days.
(15 December 2016)

Angelo:
Our parents can barely do anything since my mom works until 8 pm and can t deal with much because of the stress she s handling.
(15 December 2016)

Angelo:
I m a weak,unfit, and very useless person while my brother is strong and much more fit than me.
(15 December 2016)

Angelo:
He s two years older than me and probably one foot taller than me.
(15 December 2016)

Angelo:
I m still questioning myself if my brother is abusive or not.
(15 December 2016)

Maxie:
Would you tell your parent they sent you too much money?
(15 December 2016)

Maxie:
I feel guilty now I didn't, but I always really needed it.
(15 December 2016)

Maxie:
I never told my Dad he sent too much money.
(15 December 2016)

Maxie:
Would you send less next Christmas?
(15 December 2016)

Maxie:
I thought it was sweet she said it was too much.
(15 December 2016)