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The GO Feature Flag logo beside the title Replacing a Custom Feature Flag Platform at Solaris
Latest articleCase study

Replacing a Custom Feature Flag Platform at Solaris: GitOps, Data Residency and OpenFeature

Why a German Banking-as-a-Service provider retired its in-house toggle system for GO Feature Flag, after weighing it against seven alternatives under hard EU data residency and zero-budget constraints.

Olivier Laviale · 10 min read
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Banner for the DataGalaxy feature flag journey case study
Case study

DataGalaxy Feature Flag Journey: How OpenFeature and GO Feature Flag Rebuilt Trust Between Teams

How DataGalaxy replaced four ad-hoc flag mechanisms with OpenFeature and the GO Feature Flag relay proxy — and unlocked trunk-based development along the way.

Tom Flenner · 16 min read
A gopher facing a signpost pointing to "Tool A", "Tool B" and "GO Feature Flag", beside the title "Best Open-Source Feature Flagging Tools in 2026"
Engineering

Best Open-Source Feature Flagging Tools in 2026

The best open-source feature flag tools in 2026, compared through the OpenFeature standard — so you choose for capability, not lock-in.

Thomas Poignant · 14 min read
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Engineering

AI Tooling for GO Feature Flag and OpenFeature

Community-built skills and an MCP server that improve the AI-assisted developer experience when working with GO Feature Flag and OpenFeature.

Thomas Poignant · 4 min read
Line drawing of people seated around a table with the OpenFeature logo, captioned "Shape the Future of Open Feature Flagging"
Community

Joining the OpenFeature Governance Committee

Thomas Poignant, creator of GO Feature Flag, has been elected to the OpenFeature Governance Committee for the 2026-2028 term.

Thomas Poignant · 3 min read
Banner for GO Feature Flag at KubeCon EU 2026 in Amsterdam
Community

GO Feature Flag at KubeCon EU 2026 — Amsterdam Recap

A look back at our week in Amsterdam at KubeCon + CloudNativeCon Europe 2026.

Thomas Poignant · 4 min read
Banner about in-process evaluation in the GO Feature Flag OpenFeature providers
Product

In-Process Evaluation for GO Feature Flag OpenFeature Providers

GO, Java, .NET, Python, and JavaScript/TypeScript providers now support in-process evaluation for faster flag resolution with far fewer network calls.

Thomas Poignant · 4 min read
Banner about updating GO Feature Flag relay proxy API keys at runtime
Product

Seamlessly Update API Keys at Runtime in GO Feature Flag (No Restarts Needed)

Discover how GO Feature Flag's new runtime API key update feature enables you to update API keys without restarting the relay proxy, ensuring continuous availability and improved security.

Thomas Poignant · 4 min read
The Grafana and GO Feature Flag logos side by side
Community

Grafana is Now Using GO Feature Flag 🎉

We’re proud to announce that Grafana, one of the world’s most popular observability platforms, is now using GO Feature Flag as a dependency in their project! 🚀

Thomas Poignant · 2 min read
Illustration of feature flags organised into separate flag sets
Product

🏗️ Introducing Flag Sets: Organize Your Feature Flags Like Never Before

Discover how GO Feature Flag's new flag sets feature enables better organization, team isolation, and multi-tenant support for your feature flag management.

Thomas Poignant · 6 min read
PlatformCon 2025 speaker card for the "Decouple Deployments and Releases with OpenFeature" talk, with a photo of Thomas Poignant
Community

Watch Thomas's PlatformCon 2025 Talk on Feature Flag Decoupling

Thomas Poignant presents "Decouple Deployments and Releases with OpenFeature" at PlatformCon 2025, exploring how to separate feature releases from code deployments using feature flags and OpenFeature.

Thomas Poignant · 2 min read
The GO Feature Flag mascot and logo with the tagline "Ship Faster, Reduce Risk, and Build Scale"
Product

Introducing Exporter Metadata in the GO Feature Flag Provider for OpenFeature.

Exporter metadata in the GO Feature Flag provider for OpenFeature allows enriching evaluation events with static context data like environment or app version for improved observability and analysis.

Thomas Poignant · 3 min read
The GO Feature Flag mascot and logo with the tagline "Ship Faster, Reduce Risk, and Build Scale"
Product

(Java) OpenFeature provider improve the internal cache management.

The Java provider has been updated to improve the internal cache management by migrating from guava cache to caffeine cache.

Thomas Poignant · 2 min read
Banner about the GO Feature Flag OpenFeature providers for the Go language
Product

Changes to golang OpenFeature Integration

We have released 2 new golang providers for OpenFeature, let's explain all the changes.

Thomas Poignant · 3 min read
Title slide reading "Feature Flagging in the SDLC — follow the life of a feature flag from birth to retirement", with the OpenFeature logo
Engineering

Feature Flagging in the SDLC

Feature Flagging in the Software Development Lifecycle - Follow the life of a feature flag from birth to retirement.

Thomas Poignant · 1 min read
Illustration of GO Feature Flag running on mobile devices
Product

GO Feature Flag: Now Powering Your Mobile App Experience

GO Feature Flag: Now Powering Your Mobile App Experience.

Thomas Poignant · 4 min read
The GO Feature Flag mascot and logo with the tagline "Ship Faster, Reduce Risk, and Build Scale"
Product

GO Feature Flag Supports OpenFeature Remote Evaluation Protocol (OFREP)!

GO Feature Flag is now one of the first flag management systems to support the Open Feature Remote Evaluation Protocol (OFREP).

Thomas Poignant · 7 min read
The Power of Rollbacks banner
Engineering

The Power of Rollbacks

🚨 Bug alert! No worries, feature flags have your back. Learn how to respond swiftly to issues without breaking a sweat

Thomas Poignant · 5 min read
Banner for the Node.js feature flag tutorial with GO Feature Flag and OpenFeature
Engineering

Add Feature Flags in your Node.JS application using GO Feature Flag and Open Feature SDK

In this video, we'll walk you through the process of implementing feature flags in your Node js applications, allowing you to roll out new features gradually and control their visibility in real-time.

Thomas Poignant · 3 min read
Illustration of metadata attached to a feature flag
Product

Enhancing Flag Configuration with Flag Metadata

Empowering developers to attach additional information directly to flag configurations for enhanced management and code efficiency.

Thomas Poignant · 3 min read
Illustration of API key authentication on the GO Feature Flag relay proxy
Product

Limiting Access to the relay proxy with API Keys

New API Key feature in GO Feature Flag Relay Proxy 1.7.0 allows you to restrict access to the relay proxy to only known clients.

Thomas Poignant · 3 min read
Illustration introducing feature flag best practices
Engineering

Feature Flag best practice

Discover best practices for using feature flags in software development to improve agility and reduce risk.

Thomas Poignant · 3 min read
Diagram of GO Feature Flag merging several configuration files coming from different retrievers
Product

Multiple Configuration Flags for GO Feature Flag 🗄️

Are you tired of managing your feature flags with a single configuration flag?

Thomas Poignant · 3 min read
Terminal output of the GO Feature Flag linter reporting configuration errors
Engineering

Lint your feature flag config in you CI/CD pipelines ❌ ✅

As GO Feature Flag continues to evolve, we're excited to announce a new feature that will make it easier for our users to manage their feature flags.

Thomas Poignant · 4 min read
Banner announcing the GO Feature Flag v1.0.0 release
Product

🚀 Announcing GO Feature Flag v1.0.0

GO Feature Flag logo

Thomas Poignant · 6 min read
Cover art of the Dev'Obs podcast episode about feature flags
Community

🔊 Feature Flags in Dev’Obs Podcast 🇫🇷

Earlier this week the super cool podcast Dev’Obs asked me to talk about feature flags, go-feature-flag and also the super nice initiative OpenFeature.

Thomas Poignant · 1 min read
Illustration of an automated product release pipeline
Engineering

Automate Your Product Release Cycles Using Go Feature Flag

When you build a new feature, orchestrating the actual launch schedule between the Product, Engineering, and Marketing

Thomas Poignant · 5 min read
The GO Feature Flag logo
Product

Introduction blog post

I absolutely don’t think human/manual QA gates should be involved in between the writing of code and its being live. To avoid breaking things every time and to have an early cutoff system, you should use feature flags.

Thomas Poignant · 5 min read