[$] Changes in Prometheus 2.0

2017 was a big year for the Prometheus project, as it publishedits 2.0 release in November. The new release ships numerousbug fixes, new features, and, notably, a new storage engine that brings majorperformance improvements. This comes at the cost of incompatible changes tothe storage and configuration-file formats. An overview ofPrometheus and its new release was presented to the Kubernetes community in a talkheld during KubeCon+ CloudNativeCon. This article covers what changed in this new releaseand what is brewing next in the Prometheus community; it is a companion tothis article, which provided a generalintroduction to monitoring with Prometheus.