OpenFeature Summit Europe 2025
2025-04-01
London, United Kingdom
as the organisers put it
OpenFeature Summit Europe has officially wrapped! Thank you to all the attendees who joined us. Watch keynotes and all breakout sessions on the CNCF YouTube Channel. Review session slides from…
who it's for
platform engineers, backend engineers, devops engineers, site reliability engineers, engineering managers, SDK maintainers, developer experience engineers
topics
OpenFeature SDKs and hooks; flagd evaluation engine; OpenFeature multi-provider strategies; feature flag cleanup heuristics; signed flag payloads (JWKS/JWT); consistent hashing for targeting; dependency graph cycle detection; ArgoCD sync with OpenFeature operator; OpenTelemetry for flag observability; rollout-by-percentage progressive delivery; edge SDK performance improvements
| title | author | length |
|---|---|---|
| Welcome + Opening Remarks | Jonathan Norris | 06m |
OpenFeature reports concrete growth: 150 contributors, 123 providers, 16 SDKs plus 11 hooks and 4 remote evaluation APIs available on openfeature.dev, with… | ||
| OpenFeature’s Positive Impact on Confidence | Simon Schrottner, Todd Baert | 24m |
Company migrates from GitOps booleans to an OpenFeature stack using flagd evaluation engine, custom DB and UI, OpenFeature SDKs (Java and React), gRPC… | ||
| ⚡ Lightning Talk: The Permutations and Combinations of Managing Features: Beyond the Toggle | Prerit Munjal | 16m |
Built a feature-experimentation platform that replaces PostHog with OpenFeature plus a custom backend/UI, Pixie and Pyroscope for telemetry, and a simple… | ||
| Canary Deployments Are a Myth - True Progressive Delivery Occurs Via OpenFeature | Bob Walker | 29m |
Claims that canary deployments are a myth and that real progressive delivery is achieved with OpenFeature feature flags, not traffic-splitting. Uses Octopus… | ||
| Challenges in Distributed Feature Flag Evaluation and How To Solve Them | Lukas Reining, Christopher Bohlen | 26m |
Examples include a book-printing transaction that must not split jobs, a 4K streaming flag that mustn’t show inconsistent UI, and PII-logging that needs… | ||
| ⚡ Lightning Talk: OpenFeature Multi-Provider: Enabling New Feature Flagging Use-Cases | Jonathan Norris | 12m |
OpenFeature Multi-Provider combines multiple flag providers behind a single OpenFeature interface, shipping strategies that decide which provider’s value wins… | ||
| Beyond Boolean: Solving Hard Problems in Feature Flag Architecture at Scale | Ryan Feigenbaum | 22m |
Covers three concrete scaling problems: cross‑region consistency, circular flag dependencies, and evaluation throughput. Describes implementing consistent… | ||
| Lightning Talk: Feature Flagging at Scale: Problems with Flag Cleanup | Graham McNicoll | 12m |
At large scale flags diverge from code: flags in the platform but not in repos, flags in code but not on the platform, and ambiguous Heisenberg flags that may… | ||
| Closing Remarks | Jonathan Norris | 03m |
Summation of next steps and logistics: there is an open feature talk per day this week with a maintainers update Wednesday, Bob on Thursday covering canary… | ||
| Flag-tastic and Fearless: Feature Flags Meet K8s for Deployments That Sing! | A. Tiwari, A. Soni | 31m |
Shows a working pipeline that ties OpenFeature to Kubernetes using a CRD, the OpenFeature operator and flagd, synced from Git via ArgoCD sync and observed with… | ||
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