Prisma

Hey *<!everyone>* :v::prisma-cool:

We just released Prisma <https://github.com/prisma/prisma/releases/tag/2.21.0|2.21.0> :prisma-rainbow:

This version includes many bug fixes, improved error messages, and a new preview feature.

:card_index: *Order by an aggregate in groupBy is now in Preview*
Let’s say you want to group your users by the city they live in and then order the results by the cities with the most users. In `2.21.0`, now you can!
```const userRatingsCount = await prisma.user.groupBy({
  by: ['city'],
  count: {
    city: true,
  },
  orderBy: {
    _count: {
      city: 'desc',
    },
  },
})```
The query returns the following:
```[
  { city: 'Berlin', count: { city: 3 } },
  { city: 'Paris', count: { city: 2 } },
  { city: 'Amsterdam', count: { city: 1 } },
]```
Enable this feature with the `orderByAggregateGroup` preview flag:
```generator client {
  provider        = "prisma-client-js"
  previewFeatures = ["orderByAggregateGroup"]
}```
:books: *Learn more in the release notes*
For more info and links to documentation, you can read the <https://github.com/prisma/prisma/releases/tag/2.21.0|release notes>.

:ship: *The next 2.22.0 release will be postponed by a week*
We release Prisma normally every two weeks. The next `2.22.0` release will be postponed by a week and happen on May 5, 2021.

:deciduous_tree: *Help us spread the word about Prisma and we’ll donate trees*  :deciduous_tree:
To help spread the word about Prisma, we’d very much appreciate if you would star the <https://github.com/prisma/prisma|repo> :star2: And if you’re excited about the features in this week’s release, then help us and <https://twitter.com/intent/tweet?text=Check%20out%20the%20latest%20@prisma%20release%20v2.20.0%20%F0%9F%9A%80%0D%0A%0D%0Ahttps://github.com/prisma/prisma/releases/tag/2.20.0|share your excitement on Twitter>.
Quick reminder that for every tweet tagging Prisma in the month of April, we’ll be donating a tree as part of *<https://www.prisma.io/blog/tweets-for-trees-arboreal|Tweets for Trees>* .

:tv: *Join us on Thursday for the “What’s new in Prisma” livestream*
This week, my colleague <@UFRBVJV6J> and I will discuss the latest release and other news from the Prisma ecosystem in a <https://youtu.be/kGBBS0MvNC0|livestream on YouTube> on *Thursday at 5pm Berlin | 8am San Francisco*.

:pray: Big thanks to all the external contributors who helped with this release!