# Prisma 2.15.0 — Release & Upgrade Intelligence
- **Product:** Prisma (https://prisma.io)
- **Version:** 2.15.0
- **Released:** Jan 20, 2021
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/prisma/updates/2.15.0/

## Executive Summary (TL;DR)
Prisma 2.15.0. Source highlight: Today, we are excited to share the `2.15.0` stable release 🎉

## Breaking Changes & Deprecations
- Breaking changes - We've upgraded our RHEL base image from CentOS 6 to Amazon Linux 2. CentOS 6 reached end-of-life on November 30th, 2020. This may affect machines still running Amazon Linux 1. If you run into problems with this upgrade, please don't hesitate to [reach out](https://github.com/prisma/prisma/issues/new/choose).

## New Features
- Removed the `Numeric` alias for `Decimal` on PostgreSQL, MySQL and Microsoft SQL Server. Replace any `Numeric` types with `Decimal` when you upgrade.
- Removed the `Serial`, `SmallSerial`, and `BigSerial` aliases for `INT AUTOINCREMENT`, `SMALLINT AUTOINCREMENT`, and `BIGINT AUTOINCREMENT` on PostgreSQL. You can use `Int @default(autoincrement())`, `Int @db.SmallInt @default(autoincrement())` or `Int @db.BigInt @default(autoincrement())` when you upgrade.
- Renamed `JSON` to `Json` on MySQL.
- Renamed `Datetime` to `DateTime` on MySQL.
- Add types for `$on('beforeExit')`
- Remove deprecated features

## Improvements
- `has`: a value is contained within the array
- `hasEvery`: all values are contained within the array
- `hasSome`: at least one values is contained in the array
- `isEmpty`: the array is empty
- Prisma Migrate now detects when the migrations don’t match the configured `provider` on your `datasource` block, for example when the migrations have been created with `sqlite` but the `provider` is now set to `postgresql`. Prisma Migrate will now print a helpful error message in these cases.
- `prisma migrate reset` can now be used in non-interactive environments (e.g. CI/CD) by passing the `--force` flag.

## Upgrade Command
```bash
npm install --save-dev --save-exact prisma@2.15.0
```