Release notes on Grafana Labs

Version 1.2 release notes

Tue, 17 Mar 2026 07:33:41 +0000

Version 1.2 release notes

We are excited to present this release of Grafana Pyroscope packed with 150 commits.

In this release, we’ve introduced significant enhancements to our microservice mode, aiming to boost performance and streamline operations. The compactor component has been added to optimize block management, improving query speed and reducing replication factor overhead.

Our physical planning has undergone optimization, ensuring that data deduplication occurs only when necessary. Additionally, we’ve initiated tracing integrations, allowing for the inclusion of span ids in profiling samples and enabling flamegraph filtering.

For users leveraging Function as a Service (FaaS) environments, we’ve enhanced profiling data ingestion by automatically aggregating profiles. This not only reduces the number of profiles but also contributes to improved overall efficiency.

We’ve invested substantial effort in optimizing the read path and refining query performance, delivering a smoother user experience.

Trace to profiles integrations

Notable changes are listed below for more details check out the Full 1.2.0 Changelog: https://github.com/grafana/pyroscope/compare/v1.1.5...v1.2.0

Version 1.2.x changelogs:

Features and enhancements

All new features and enhancements for version 1.2.x are listed in this section.

Version 1.2.1

Features and enhancements for version 1.2.1:

Add a way to control the aggregation type for the SelectSeries API (#2758)
Add admin module serving the bucket web tool (#2724)
Add block compaction level to bucket index (#2721)
Introduce the first release of the Cluster API Versioning (#2780)
Implement Settings API (#2711)
Develop optimized pprof symbolication and pprof truncation (#2679, #2754)
Add the first iteration of the blocks viewer cli tool (#2697)

In addition, the followin improvements and updates for version 1.2.1:

Improve SelectMatchingProfiles performance (#2734)
Enhance language detection performance (#2823)
Refactor Azure bucket configs (#2742)
Update various dependencies and libraries (#2741, #2744, #2826, #2827, #2832)
Switch to relative links in block viewer to address issue with alternate base URLs (#2763)
Update styling to match Grafana (#2827)

Version 1.2

Enhancements for version 1.2:

728493e feat: Scalable Compactor (#2466)
d4e3b03 Create a physical plan for block querying (#2586)
1488496 Extend profile schema to support spans (#2508)
1e7ebd9 Allow to configure pyroscope high disk utilization (#2666)
4e8439d Optimize repeated row iterator (#2572)
f1b82c5 feat(ebpf): add pyperf (#2201)
25084ea Randomize sessions after aggregation (#2656)
3c5a959 Make max node limit configurable (#2658)

Bug fixes

Version 1.2.1

Fix duplicate @emotion/react import and favicon (#2798)
Resolve query split logic issues for LabelNames, LabelValues, and ProfileTypes (#2852)
Rename Phlare to Pyroscope (#2722)
Fix span name for BlockSelect from store-gateway (#2842)
Address issues in version merging in memberlist (#2815)
Correct handling of overriding extraArgs in components (#2751)
Remove go.mod replace for golang.org/x/exp (#2848)
Remove parquet page file buffer in symbdb (#2820)
Fix various issues in ebpf, ReduxQuerySync, and UI units (#2703, #2761, #2778, #2788, #2789, #2812, #2838)
Fix ingress for Pyroscope UI (#2807)

Version 1.2

e572d26 Cleanup failed segment before flushing. (#2606)
be7bc5d Fix symbols resolver race condition (#2665)
f4b0a60 fix(jfr): merge equal samples (#2652)

Documentation updates

Version 1.2.1

Add initial docs for the /pyroscope/render API endpoint (#2837)
Create “Ingest and analyze profile data” section in docs (#2828)
Add upgrade from standard pprof example (#2829)
Add compactor to docs (#2720)
Migrate from Standard pprof to Pyroscope for Continuous Profiling (#2830)
Add introductory material and how to use Pyroscope pages (#2834, #2836, #2839)

Version 1.2

We’ve added documentation for profilecli to query and upload pprof files.
We’ve also documented the store-gateway and compactor component.

Version 1.1 release notes

Tue, 17 Mar 2026 07:33:41 +0000

Version 1.1 release notes

The Pyroscope team is excited to announce the the second release. This release allows to retrieve series from persistent storages like local disk and object store and also has a couple of performance improvements (e.g., JFR ingestion is handled a lot more efficiently).

As always, feedback is more than welcome, feel free to open issues/discussions. You can reach out to the team using:

Docker images

grafana/pyroscope

  docker pull docker.io/grafana/pyroscope:1.1.0

Improvements and enhancements

Switched to v1 Golang SDK.
Updated multiple dependencies including Go, Ruby, Django, Rust, and more.
Introduced meta fetcher that synchronizes filtered metadata locally.
Introduced pyroscope packaging via nfpm.
Use Grafana flamegraph component.
‘ExportData’ now respects the ‘flamegraph.com’ related prop.
Introduced option to disable RBAC.
Introduced a tenant scanner.
Refactoring for block compaction to enable shard-splitting.
Improved multitenancy default behavior documentation.

Fixes

Addressed various race conditions and bug fixes.
Improved URL handling and pprof merges.
Fixed various documentation inconsistencies and outdated references.
Fixed broken links.
Resolved multiple issues related to dotnet and ebpf.
Addressed flaky tests and issues in ingestionAdapter.
Handle profiles without timestamps.

Documentation updates

Added tabs to Java docs and updated ebpf docs.
Added section for Apple arm64 builds.
Updated documentation for contributors.
Improved helm documentation.
Optimized and clarified querier API calls.

DevOps and tooling

Introduced Helm v1.0.0 release.
Automation added for brew releases.
Helm improvements: setting correct namespace, adding initContainers, hostNetwork, etc.
Refactored after dskit upgrade.
Updated rideshare examples for ingesting to grafana.com.

Version 1.0 release notes

Tue, 17 Mar 2026 07:33:41 +0000

Version 1.0 release notes

The Pyroscope team is excited to announce the first release. We’re committed to building the best continuous profiling experience in Grafana and contributing to that space along with the open-source community.

From the first release you can expect:

Pyroscope is a horizontally-scalable, highly-available, multi-tenant continuous profiling aggregation system with similar architecture to Grafana Mimir, Grafana Loki, and Grafana Tempo.
Easy to get started with guides covering Helm, Tanka, and docker-compose installations.
A fully integrated data source in Grafana to correlate your continuous profiling data with other observability signals using Grafana Explore and dashboards. The native flame graph panel visualization can also be used by other profiling data sources.

For more details check out the Full Changelog and the commit list.