---
title: "Grafana Enterprise Metrics v2.1 release notes | Grafana Enterprise Metrics documentation"
description: "Release notes for Grafana Enterprise Metrics version 2.1."
---

# Version 2.1 release notes

Grafana Labs is excited to announce the release of Grafana Enterprise Metrics (GEM) 2.1. GEM 2.1 is built on top of Grafana Mimir 2.1, which means it inherits all its features, enhancements, and bugfixes. Given this, we recommend you start by reading the [Grafana Mimir 2.1 release notes](/docs/mimir/latest/release-notes/v2.1/).

Below, we highlight the most important features, enhancements, and bugfixes specific to GEM 2.1. For the full list of changes, see the [Changelog](/docs/enterprise-metrics/latest/get-started/download-gem/#v210----june-2nd-2022).

## Features and enhancements

The following list highlights the features and enhancements in Grafana Enterprise Metrics 2.1:

- `Remote` ruler mode for improved rule evaluation performance: This experimental feature is inherited from Grafana Mimir 2.1 and is explained in more detail in the [Mimir 2.1 release notes](/docs/mimir/latest/release-notes/v2.1/). GEM 2.1 adds an additional configuration parameter, `-ruler.query-frontend.auth-token`, which is required for configuring the `remote` ruler with GEM enterprise authentication. See [Remote rule evaluation](/docs/enterprise-metrics/latest/configure/config-gem/#remote-rule-evaluation-using-query-frontend) for more information.
- Page fault metrics for [self-monitoring](/docs/enterprise-metrics/latest/manage/monitor/self-monitoring/): GEM now collects and stores metrics tracking the number of page faults and out-of-memory kills it experiences, making it easier to debug performance issues.

## Upgrade considerations

We’ve released a new version of our [Helm chart](/docs/enterprise-metrics/latest/set-up/helm-chart/) in tandem with the GEM 2.1 release. The upgrade for users of the Helm chart has no breaking changes.

Once you upgrade to GEM 2.1, we recommend you upgrade your [Grafana Enterprise GEM plugin](/grafana/plugins/grafana-metrics-enterprise-app/) to the latest version. For more information on the most recent enhancements and fixes, see the [plugin’s changelog page](/grafana/plugins/grafana-metrics-enterprise-app/?tab=changelog).

## Bug fixes

### v2.1.0

- Fixed a bug where ruler limits (e.g., maximum number of rules in a rule group or maximum number of rule groups per tenant) were not enforced when creating a rule group via GEM’s ruler API. These limits are now enforced.
- GEM now returns a generic error message to clients (e.g., the Grafana Agent) upon internal errors during authentication. The detailed error message is now written to the GEM logs rather than being returned to the client.