From 8495be577be16e063e6df64d16f45a77b24c00ce Mon Sep 17 00:00:00 2001 From: Jonathan Norris Date: Thu, 13 Aug 2026 14:25:26 -0400 Subject: [PATCH 01/12] docs: add mid-2026 update blog post Signed-off-by: Jonathan Norris --- blog/2026-08-12-mid-2026-update.md | 115 +++++++++++++++++++++++++++++ 1 file changed, 115 insertions(+) create mode 100644 blog/2026-08-12-mid-2026-update.md diff --git a/blog/2026-08-12-mid-2026-update.md b/blog/2026-08-12-mid-2026-update.md new file mode 100644 index 000000000..6e779de10 --- /dev/null +++ b/blog/2026-08-12-mid-2026-update.md @@ -0,0 +1,115 @@ +--- +title: 'OpenFeature Mid-2026 Update: Platform-Native Feature Flags, a New TC Member, and Spec v0.9.0' +description: 'Cloudflare, Google Cloud, and Vercel shipped feature flag services built on OpenFeature, new vendors joined the ecosystem, Nicklas Lundin joined the Technical Committee, and specification v0.9.0 shipped.' +date: 2026-08-12 +categories: ['OpenFeature', 'Feature Flags', 'CloudNative', 'Specification'] +tags: [update, ecosystem, governance, spec] +slug: 'openfeature-mid-2026-update' +authors: ['jonathannorris'] +# image: /img/blog/2026-08-12-mid-2026-update/.png +--- + +It has been a busy few months since the [KubeCon EU 2026 recap](/blog/kubecon-eu-2026-recap). +Three cloud platforms shipped feature flag services built on OpenFeature, more vendors joined the ecosystem, the Technical Committee grew, and we shipped the largest specification release in over two years. + + + +## Platform-Native Feature Flags + +The biggest news of the last year is not something we built. +Five well-known platforms launched feature flag services of their own, and each chose OpenFeature as a critical part of their product offering. + +- **[Datadog](https://docs.datadoghq.com/feature_flags/)** launched in late 2025 and describes its product as "built on the OpenFeature standard," now supporting OpenFeature providers across eight languages. + Coverage spans server-side [Java](https://docs.datadoghq.com/feature_flags/server/java), [Node.js](https://docs.datadoghq.com/feature_flags/server/nodejs), [Python](https://docs.datadoghq.com/feature_flags/server/python), and [Ruby](https://docs.datadoghq.com/feature_flags/server/ruby), plus client-side [JavaScript](https://docs.datadoghq.com/feature_flags/client/javascript), [React](https://docs.datadoghq.com/feature_flags/client/react), [iOS](https://docs.datadoghq.com/feature_flags/client/ios), and [Android](https://docs.datadoghq.com/feature_flags/client/android/). +- **[Vercel Flags](https://vercel.com/blog/vercel-flags-platform-native-feature-flags)** became generally available in April, with an OpenFeature provider. + Their [docs](https://vercel.com/docs/flags/vercel-flags/sdks/openfeature) scope it to server-side use, with their own Flags SDK covering client-side and framework-native cases. +- **[Cloudflare Flagship](https://blog.cloudflare.com/flagship/)** was announced in April and reached public beta in May, with providers for both the Workers runtime and the browser. + Evaluation happens inside the Workers runtime rather than over the network, and the provider also runs on Node.js, Bun, and Deno. +- **[Google Cloud App Lifecycle Manager](https://cloud.google.com/blog/products/application-development/new-feature-flags-in-applifecycle-manager)** added feature flags in May, now in public preview. + Google describes it as "built on the OpenFeature standard, utilizing industry-standard SDKs and the flagd evaluation engine," making it an adopter of the OpenFeature [flagd](https://flagd.dev/) evaluation engine alongside the API. + Notably there is no Google-specific provider: their [quickstart](https://docs.cloud.google.com/saas-runtime/docs/flags/flags-quickstart) uses the community flagd provider as-is, with guides for Python, Java, and Go. +- **[Mixpanel](https://mixpanel.com/blog/mixpanel-experimentation-feature-flags/)** launched feature flags alongside its experimentation suite in June. + Its eight OpenFeature providers cover server-side [Go](https://github.com/mixpanel/mixpanel-go/tree/main/openfeature), [Java](https://github.com/mixpanel/mixpanel-java/tree/master/openfeature-provider), [JavaScript](https://github.com/mixpanel/mixpanel-node/tree/master/packages/openfeature-server-provider), [Python](https://github.com/mixpanel/mixpanel-python/tree/master/openfeature-provider), and [Ruby](https://github.com/mixpanel/mixpanel-ruby/tree/master/openfeature-provider), plus client-side [JavaScript](https://github.com/mixpanel/mixpanel-js/tree/master/packages/openfeature-web-provider), [Swift](https://github.com/mixpanel/mixpanel-swift-openfeature), and [Kotlin](https://github.com/mixpanel/mixpanel-android/tree/master/openfeature-provider). + +This is what a standard is for. +Each of these teams shipped a product without inventing new APIs and SDKs, so application code stays portable and teams remain free to move between them. +We expect this trend to continue and welcome more vendors building OpenFeature-native. + +## New Vendors in the Ecosystem + +Alongside the companies above, two more companies shipped their first OpenFeature providers: + +- **[Featureflip](https://featureflip.io/)** added [JavaScript and .NET](https://featureflip.io/docs/integrations/openfeature/). +- **[Switchbox](https://switchbox.dev/)** added + [JavaScript](https://github.com/ignat14/switchbox-sdk-js/tree/main/packages/openfeature), + [React](https://switchbox.dev/docs/sdk/openfeature), + and [Python](https://github.com/ignat14/switchbox-sdk-python/tree/main/providers/openfeature) providers. + +Existing vendors expanded their language coverage: + +- **[Flagsmith](https://www.flagsmith.com/)** added [Kotlin](https://github.com/Flagsmith/flagsmith-openfeature-provider-kotlin). +- **[GO Feature Flag](https://gofeatureflag.org/)** added [Rust](https://gofeatureflag.org/docs/sdk/server_providers/openfeature_rust). +- **[Unleash](https://www.getunleash.io/)** added a + [.NET provider](https://github.com/open-feature/dotnet-sdk-contrib/tree/main/src/OpenFeature.Providers.Unleash) + along with [Angular](https://github.com/open-feature/js-sdk-contrib/blob/main/libs/providers/unleash-web/README.md#angular-framework) + and [React](https://github.com/open-feature/js-sdk-contrib/blob/main/libs/providers/unleash-web/README.md#react-framework) support, with seven more languages submitted and in review. + +If your company has a provider that is not listed, [let us know](https://github.com/open-feature/openfeature.dev/issues/new?assignees=&labels=provider&projects=&template=document-provider.yaml&title=%5BProvider%5D%3A+) and we will add it to the [ecosystem directory](/ecosystem). + +## Welcoming Nicklas Lundin to the Technical Committee + +[Nicklas Lundin](https://github.com/nicklasl) has joined the OpenFeature [Technical Committee](/community/tech-committee-charter/). +Nicklas is based in Stockholm and works at Spotify on [Confidence](https://confidence.spotify.com/), an experimentation and feature flagging platform that supporting OpenFeature. +He has been a dedicated contributor for several years, and has driven much of the development and refinement of our mobile SDKs. + +## Specification v0.9.0 + +[Specification v0.9.0](https://github.com/open-feature/spec/releases/tag/v0.9.0) is our first spec release since v0.8.0 in March 2024. + +The most consequential change ([spec#314](https://github.com/open-feature/spec/pull/314)) stabilizes the evaluation and provider sections and hardens hooks, events, and evaluation context. +If you build providers or SDKs, the surfaces you depend on most are now considerably more settled. + +The release also gathers up work that had been accumulating: +[tracking](https://github.com/open-feature/spec/pull/268), +a [logging hook](https://github.com/open-feature/spec/pull/269), +[hook data](https://github.com/open-feature/spec/pull/273), +a [multi-provider appendix](https://github.com/open-feature/spec/pull/264), +and an [observability appendix](https://github.com/open-feature/spec/pull/287) with refreshed OpenTelemetry semantic conventions. +Two changes are worth calling out for implementers. +[Isolated API instances](https://github.com/open-feature/spec/pull/368) mean the global singleton is no longer mandatory, which unblocks micro-frontends, dependency injection, and test isolation. +[Provider lifecycle](https://github.com/open-feature/spec/pull/385) is now event driven, so providers own their own status rather than having the SDK infer it, closing a class of initialization races. + +Three changes are breaking ([spec#280](https://github.com/open-feature/spec/pull/280), [spec#306](https://github.com/open-feature/spec/pull/306), and [spec#360](https://github.com/open-feature/spec/pull/360)), so please read the release notes before upgrading a provider or SDK implementation. + +Fourteen people made their first contribution to the specification in this release. + +## Also Shipped + +- **OFREP gained push updates.** Version 0.3.0 ([protocol#67](https://github.com/open-feature/protocol/pull/67)) added SSE event streams, and [protocol#77](https://github.com/open-feature/protocol/pull/77) accepted three ADRs covering push notifications, [cache-first local persistence](https://github.com/open-feature/protocol/pull/75), and [turning off default timer polling](https://github.com/open-feature/protocol/pull/69). +- **A new C++ SDK.** The [C++ SDK](/docs/reference/sdks/server/cpp) cut its [first release](https://github.com/open-feature/cpp-sdk/releases) in June and is already at v0.1.3, with hooks, evaluation options, and the global API. +- **flagd shipped [0.16.0](https://github.com/open-feature/flagd/releases/tag/flagd%2Fv0.16.0) and [0.16.1](https://github.com/open-feature/flagd/releases/tag/flagd%2Fv0.16.1)**, adding custom sync headers ([flagd#1960](https://github.com/open-feature/flagd/pull/1960), [flagd#1969](https://github.com/open-feature/flagd/pull/1969)), incremental gRPC updates ([flagd#1922](https://github.com/open-feature/flagd/pull/1922)), and content-hash deduplication ([flagd#1991](https://github.com/open-feature/flagd/pull/1991)), alongside a sustained run of reliability fixes. +- **The OpenFeature Operator reached [v0.9.2](https://github.com/open-feature/open-feature-operator/releases/tag/v0.9.2).** Note that v0.9.0 moved to [native sidecar containers](https://github.com/open-feature/open-feature-operator/pull/807) and now requires Kubernetes 1.29 or later. +- **Isolated API instances landed across five SDKs.** [.NET](https://github.com/open-feature/dotnet-sdk/pull/740), [PHP](https://github.com/open-feature/php-sdk/pull/171), and [Java](https://github.com/open-feature/java-sdk/pull/1928) have shipped them in releases, with [Go](https://github.com/open-feature/go-sdk/pull/492) and [Kotlin](https://github.com/open-feature/kotlin-sdk/pull/243) merged and awaiting a release. + Library authors, micro-frontends, and parallel test suites no longer have to share one process-global singleton. +- **"DISABLED is a successful evaluation" rolled out to five flagd cores.** [JavaScript](https://github.com/open-feature/js-sdk-contrib/pull/1558), [Java](https://github.com/open-feature/java-sdk-contrib/pull/1800), [Go](https://github.com/open-feature/go-sdk-contrib/pull/896), [Python](https://github.com/open-feature/python-sdk-contrib/pull/395), and [.NET](https://github.com/open-feature/dotnet-sdk-contrib/pull/671) all shipped the change, each with a major version bump on the core library. + A disabled flag now resolves successfully and returns your default rather than surfacing an error. +- **64-bit integer support arrived in the JVM SDKs.** [Java](https://github.com/open-feature/java-sdk/pull/1985) and [Kotlin](https://github.com/open-feature/kotlin-sdk/pull/225) both added long support, closing a gap where large flag values overflowed. +- **New providers.** Azure App Configuration ([JavaScript](https://github.com/open-feature/js-sdk-contrib/pull/1575)), localStorage ([JavaScript](https://github.com/open-feature/js-sdk-contrib/pull/1518)), Optimizely ([Go](https://github.com/open-feature/go-sdk-contrib/pull/802), with Java reaching 1.0.0), and GCP Secret Manager and Parameter Manager ([Java](https://github.com/open-feature/java-sdk-contrib/pull/1772)). +- **Three breaking changes worth checking before you upgrade.** Python's `set_provider()` is now non-blocking with a new `set_provider_and_wait()` ([python-sdk#595](https://github.com/open-feature/python-sdk/pull/595)), fractional bucketing was overhauled ([js-sdk-contrib#1501](https://github.com/open-feature/js-sdk-contrib/pull/1501)) in a way that changes which users land in which variant, and the OFREP web provider [turned default polling off](https://github.com/open-feature/js-sdk-contrib/pull/1510). + +## Where We Could Use Help + +The work that moves the ecosystem furthest is rarely a single fix in a single SDK. +These are the larger efforts where an extra pair of hands changes the outcome, and each one has a per-language issue you can pick up. + +- **[Specification v0.9.0 compliance](https://github.com/open-feature/spec/releases/tag/v0.9.0) is open in all ten SDKs.** Until each one works through its checklist, the same OpenFeature version behaves differently depending on which language your service is written in. + There is a tracking issue per SDK: [JavaScript](https://github.com/open-feature/js-sdk/issues/1441), [Java](https://github.com/open-feature/java-sdk/issues/1999), [.NET](https://github.com/open-feature/dotnet-sdk/issues/792), [Go](https://github.com/open-feature/go-sdk/issues/526), [Python](https://github.com/open-feature/python-sdk/issues/618), [Ruby](https://github.com/open-feature/ruby-sdk/issues/300), [Kotlin](https://github.com/open-feature/kotlin-sdk/issues/250), [Swift](https://github.com/open-feature/swift-sdk/issues/122), [Rust](https://github.com/open-feature/rust-sdk/issues/137), and [PHP](https://github.com/open-feature/php-sdk/issues/182). +- **[A cross-language conformance suite for providers](https://github.com/open-feature/spec/issues/417).** Every provider is verified differently today, or not at all, which is the root cause of most of the parity gaps below. + This is the highest-leverage project on the list. +- **[Hashing consistency in flagd's fractional evaluation](https://github.com/open-feature/flagd/issues/1737), open across eleven repos.** Until every flagd provider agrees on how it buckets, the same user can land in different variants depending on which SDK evaluates the flag. +- **[OFREP SSE streaming](https://github.com/open-feature/js-sdk-contrib/issues/1498) is unimplemented in six ecosystems.** The protocol supports push updates now, but most OFREP users are still waiting on a poll interval to see a flag change. +- **[Bringing multi-provider up to parity with the JavaScript reference](https://github.com/open-feature/spec/issues/316).** Most SDKs now have a multi-provider, but a few features from the JavaScript implementation did not make it across, so [Java](https://github.com/open-feature/java-sdk/issues/1882), [Kotlin](https://github.com/open-feature/kotlin-sdk/issues/211), and [Swift](https://github.com/open-feature/swift-sdk/issues/109) each have some catching up to do. +- **[Bound-domain initialization](https://github.com/open-feature/spec/issues/403)** is still open in Go, .NET, Kotlin, Rust, and Swift. + +Come find us on [CNCF Slack](https://cloud-native.slack.com/archives/C0344AANLA1), at our [bi-weekly community meetings](/community/#community-meetings), or on [GitHub](https://github.com/open-feature). +We will be at [KubeCon NA 2026](https://events.linuxfoundation.org/kubecon-cloudnativecon-north-america/) in Salt Lake City this November. From 809f60be0a4ae7fe307191f73ac462d35c49d188 Mon Sep 17 00:00:00 2001 From: Jonathan Norris Date: Thu, 13 Aug 2026 14:36:57 -0400 Subject: [PATCH 02/12] docs: correct platform count in mid-2026 update intro Signed-off-by: Jonathan Norris --- blog/2026-08-12-mid-2026-update.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/blog/2026-08-12-mid-2026-update.md b/blog/2026-08-12-mid-2026-update.md index 6e779de10..6bd0be46d 100644 --- a/blog/2026-08-12-mid-2026-update.md +++ b/blog/2026-08-12-mid-2026-update.md @@ -10,7 +10,7 @@ authors: ['jonathannorris'] --- It has been a busy few months since the [KubeCon EU 2026 recap](/blog/kubecon-eu-2026-recap). -Three cloud platforms shipped feature flag services built on OpenFeature, more vendors joined the ecosystem, the Technical Committee grew, and we shipped the largest specification release in over two years. +Five large platforms shipped feature flag services built on OpenFeature, more vendors joined the ecosystem, the Technical Committee grew, and we shipped the largest specification release in over two years. From ae455879f3dc65644c80a64a593439d92d4ae610 Mon Sep 17 00:00:00 2001 From: Jonathan Norris Date: Thu, 13 Aug 2026 14:39:59 -0400 Subject: [PATCH 03/12] docs: reword intro to say platforms support OpenFeature Signed-off-by: Jonathan Norris --- blog/2026-08-12-mid-2026-update.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/blog/2026-08-12-mid-2026-update.md b/blog/2026-08-12-mid-2026-update.md index 6bd0be46d..61d01a63f 100644 --- a/blog/2026-08-12-mid-2026-update.md +++ b/blog/2026-08-12-mid-2026-update.md @@ -10,7 +10,7 @@ authors: ['jonathannorris'] --- It has been a busy few months since the [KubeCon EU 2026 recap](/blog/kubecon-eu-2026-recap). -Five large platforms shipped feature flag services built on OpenFeature, more vendors joined the ecosystem, the Technical Committee grew, and we shipped the largest specification release in over two years. +Five large platforms shipped feature flag services supporting OpenFeature, more vendors joined the ecosystem, the Technical Committee grew, and we shipped the largest specification release in over two years. From e56b9ac5108e26204253a4eb6c9634b3c6ea0c51 Mon Sep 17 00:00:00 2001 From: Jonathan Norris Date: Thu, 13 Aug 2026 14:40:18 -0400 Subject: [PATCH 04/12] docs: fix grammar in Confidence description Signed-off-by: Jonathan Norris --- blog/2026-08-12-mid-2026-update.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/blog/2026-08-12-mid-2026-update.md b/blog/2026-08-12-mid-2026-update.md index 61d01a63f..7f89ef5f5 100644 --- a/blog/2026-08-12-mid-2026-update.md +++ b/blog/2026-08-12-mid-2026-update.md @@ -59,7 +59,7 @@ If your company has a provider that is not listed, [let us know](https://github. ## Welcoming Nicklas Lundin to the Technical Committee [Nicklas Lundin](https://github.com/nicklasl) has joined the OpenFeature [Technical Committee](/community/tech-committee-charter/). -Nicklas is based in Stockholm and works at Spotify on [Confidence](https://confidence.spotify.com/), an experimentation and feature flagging platform that supporting OpenFeature. +Nicklas is based in Stockholm and works at Spotify on [Confidence](https://confidence.spotify.com/), an experimentation and feature flagging platform supporting OpenFeature. He has been a dedicated contributor for several years, and has driven much of the development and refinement of our mobile SDKs. ## Specification v0.9.0 From 19f16869a9f6abb8ed1923b564f04ab1d9bff32b Mon Sep 17 00:00:00 2001 From: Jonathan Norris Date: Thu, 13 Aug 2026 14:44:57 -0400 Subject: [PATCH 05/12] docs: fix grammar nits and generalize description in mid-2026 update Signed-off-by: Jonathan Norris --- blog/2026-08-12-mid-2026-update.md | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/blog/2026-08-12-mid-2026-update.md b/blog/2026-08-12-mid-2026-update.md index 7f89ef5f5..8bf1de376 100644 --- a/blog/2026-08-12-mid-2026-update.md +++ b/blog/2026-08-12-mid-2026-update.md @@ -1,6 +1,6 @@ --- title: 'OpenFeature Mid-2026 Update: Platform-Native Feature Flags, a New TC Member, and Spec v0.9.0' -description: 'Cloudflare, Google Cloud, and Vercel shipped feature flag services built on OpenFeature, new vendors joined the ecosystem, Nicklas Lundin joined the Technical Committee, and specification v0.9.0 shipped.' +description: 'Five large platforms shipped feature flag services supporting OpenFeature, new vendors joined the ecosystem, Nicklas Lundin joined the Technical Committee, and specification v0.9.0 shipped.' date: 2026-08-12 categories: ['OpenFeature', 'Feature Flags', 'CloudNative', 'Specification'] tags: [update, ecosystem, governance, spec] @@ -17,7 +17,7 @@ Five large platforms shipped feature flag services supporting OpenFeature, more ## Platform-Native Feature Flags The biggest news of the last year is not something we built. -Five well-known platforms launched feature flag services of their own, and each chose OpenFeature as a critical part of their product offering. +Five well-known platforms launched feature flag services of their own, and each chose OpenFeature as a critical part of its product offering. - **[Datadog](https://docs.datadoghq.com/feature_flags/)** launched in late 2025 and describes its product as "built on the OpenFeature standard," now supporting OpenFeature providers across eight languages. Coverage spans server-side [Java](https://docs.datadoghq.com/feature_flags/server/java), [Node.js](https://docs.datadoghq.com/feature_flags/server/nodejs), [Python](https://docs.datadoghq.com/feature_flags/server/python), and [Ruby](https://docs.datadoghq.com/feature_flags/server/ruby), plus client-side [JavaScript](https://docs.datadoghq.com/feature_flags/client/javascript), [React](https://docs.datadoghq.com/feature_flags/client/react), [iOS](https://docs.datadoghq.com/feature_flags/client/ios), and [Android](https://docs.datadoghq.com/feature_flags/client/android/). @@ -27,13 +27,13 @@ Five well-known platforms launched feature flag services of their own, and each Evaluation happens inside the Workers runtime rather than over the network, and the provider also runs on Node.js, Bun, and Deno. - **[Google Cloud App Lifecycle Manager](https://cloud.google.com/blog/products/application-development/new-feature-flags-in-applifecycle-manager)** added feature flags in May, now in public preview. Google describes it as "built on the OpenFeature standard, utilizing industry-standard SDKs and the flagd evaluation engine," making it an adopter of the OpenFeature [flagd](https://flagd.dev/) evaluation engine alongside the API. - Notably there is no Google-specific provider: their [quickstart](https://docs.cloud.google.com/saas-runtime/docs/flags/flags-quickstart) uses the community flagd provider as-is, with guides for Python, Java, and Go. + Notably, there is no Google-specific provider: their [quickstart](https://docs.cloud.google.com/saas-runtime/docs/flags/flags-quickstart) uses the community flagd provider as-is, with guides for Python, Java, and Go. - **[Mixpanel](https://mixpanel.com/blog/mixpanel-experimentation-feature-flags/)** launched feature flags alongside its experimentation suite in June. Its eight OpenFeature providers cover server-side [Go](https://github.com/mixpanel/mixpanel-go/tree/main/openfeature), [Java](https://github.com/mixpanel/mixpanel-java/tree/master/openfeature-provider), [JavaScript](https://github.com/mixpanel/mixpanel-node/tree/master/packages/openfeature-server-provider), [Python](https://github.com/mixpanel/mixpanel-python/tree/master/openfeature-provider), and [Ruby](https://github.com/mixpanel/mixpanel-ruby/tree/master/openfeature-provider), plus client-side [JavaScript](https://github.com/mixpanel/mixpanel-js/tree/master/packages/openfeature-web-provider), [Swift](https://github.com/mixpanel/mixpanel-swift-openfeature), and [Kotlin](https://github.com/mixpanel/mixpanel-android/tree/master/openfeature-provider). This is what a standard is for. Each of these teams shipped a product without inventing new APIs and SDKs, so application code stays portable and teams remain free to move between them. -We expect this trend to continue and welcome more vendors building OpenFeature-native. +We expect this trend to continue and welcome more vendors building on OpenFeature. ## New Vendors in the Ecosystem @@ -60,7 +60,7 @@ If your company has a provider that is not listed, [let us know](https://github. [Nicklas Lundin](https://github.com/nicklasl) has joined the OpenFeature [Technical Committee](/community/tech-committee-charter/). Nicklas is based in Stockholm and works at Spotify on [Confidence](https://confidence.spotify.com/), an experimentation and feature flagging platform supporting OpenFeature. -He has been a dedicated contributor for several years, and has driven much of the development and refinement of our mobile SDKs. +He has been a dedicated contributor for several years and has driven much of the development and refinement of our mobile SDKs. ## Specification v0.9.0 @@ -77,7 +77,7 @@ a [multi-provider appendix](https://github.com/open-feature/spec/pull/264), and an [observability appendix](https://github.com/open-feature/spec/pull/287) with refreshed OpenTelemetry semantic conventions. Two changes are worth calling out for implementers. [Isolated API instances](https://github.com/open-feature/spec/pull/368) mean the global singleton is no longer mandatory, which unblocks micro-frontends, dependency injection, and test isolation. -[Provider lifecycle](https://github.com/open-feature/spec/pull/385) is now event driven, so providers own their own status rather than having the SDK infer it, closing a class of initialization races. +[Provider lifecycle](https://github.com/open-feature/spec/pull/385) is now event-driven, so providers own their own status rather than having the SDK infer it, closing a class of initialization races. Three changes are breaking ([spec#280](https://github.com/open-feature/spec/pull/280), [spec#306](https://github.com/open-feature/spec/pull/306), and [spec#360](https://github.com/open-feature/spec/pull/360)), so please read the release notes before upgrading a provider or SDK implementation. From 6d77d2f27f7402f2dffb83fd7afc1649ce979999 Mon Sep 17 00:00:00 2001 From: Jonathan Norris Date: Thu, 13 Aug 2026 15:09:28 -0400 Subject: [PATCH 06/12] docs: distinguish official and community Unleash providers Signed-off-by: Jonathan Norris --- blog/2026-08-12-mid-2026-update.md | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/blog/2026-08-12-mid-2026-update.md b/blog/2026-08-12-mid-2026-update.md index 8bf1de376..0924c04d5 100644 --- a/blog/2026-08-12-mid-2026-update.md +++ b/blog/2026-08-12-mid-2026-update.md @@ -49,10 +49,13 @@ Existing vendors expanded their language coverage: - **[Flagsmith](https://www.flagsmith.com/)** added [Kotlin](https://github.com/Flagsmith/flagsmith-openfeature-provider-kotlin). - **[GO Feature Flag](https://gofeatureflag.org/)** added [Rust](https://gofeatureflag.org/docs/sdk/server_providers/openfeature_rust). -- **[Unleash](https://www.getunleash.io/)** added a +- **[Unleash](https://www.getunleash.io/)** now maintains + [seven official providers in beta](https://docs.getunleash.io/release-notes/2026/8/5#openfeature-providers-in-beta) + under its own organization, covering Node.js, PHP, Python, Ruby, Rust, Swift, and Android. + On the community side, a new [.NET provider](https://github.com/open-feature/dotnet-sdk-contrib/tree/main/src/OpenFeature.Providers.Unleash) - along with [Angular](https://github.com/open-feature/js-sdk-contrib/blob/main/libs/providers/unleash-web/README.md#angular-framework) - and [React](https://github.com/open-feature/js-sdk-contrib/blob/main/libs/providers/unleash-web/README.md#react-framework) support, with seven more languages submitted and in review. + landed in the OpenFeature organization, and the web provider gained [Angular](https://github.com/open-feature/js-sdk-contrib/blob/main/libs/providers/unleash-web/README.md#angular-framework) + and [React](https://github.com/open-feature/js-sdk-contrib/blob/main/libs/providers/unleash-web/README.md#react-framework) support. If your company has a provider that is not listed, [let us know](https://github.com/open-feature/openfeature.dev/issues/new?assignees=&labels=provider&projects=&template=document-provider.yaml&title=%5BProvider%5D%3A+) and we will add it to the [ecosystem directory](/ecosystem). From 0f80dc5bd8d1cb60e1a1d6c761cfb55a4c45ab28 Mon Sep 17 00:00:00 2001 From: Jonathan Norris Date: Thu, 13 Aug 2026 15:11:36 -0400 Subject: [PATCH 07/12] docs: mention providers with pending ecosystem listings Signed-off-by: Jonathan Norris --- blog/2026-08-12-mid-2026-update.md | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/blog/2026-08-12-mid-2026-update.md b/blog/2026-08-12-mid-2026-update.md index 0924c04d5..2da25c483 100644 --- a/blog/2026-08-12-mid-2026-update.md +++ b/blog/2026-08-12-mid-2026-update.md @@ -57,6 +57,11 @@ Existing vendors expanded their language coverage: landed in the OpenFeature organization, and the web provider gained [Angular](https://github.com/open-feature/js-sdk-contrib/blob/main/libs/providers/unleash-web/README.md#angular-framework) and [React](https://github.com/open-feature/js-sdk-contrib/blob/main/libs/providers/unleash-web/README.md#react-framework) support. +More are in the pipeline, with listings [open for review](https://github.com/open-feature/openfeature.dev/pulls) as we publish this: +[Feat](https://feat.so) has JavaScript ([client](https://github.com/feathq/openfeature-web) and [server](https://github.com/feathq/js-sdk)) plus [Dart](https://github.com/feathq/openfeature-dart) providers, +[Rollgate](https://github.com/rollgate/sdks/tree/main/packages/openfeature-server-provider) has a JavaScript server provider, +and Flagsmith has added a [PHP provider](https://github.com/open-feature/php-sdk-contrib/tree/main/providers/Flagsmith). + If your company has a provider that is not listed, [let us know](https://github.com/open-feature/openfeature.dev/issues/new?assignees=&labels=provider&projects=&template=document-provider.yaml&title=%5BProvider%5D%3A+) and we will add it to the [ecosystem directory](/ecosystem). ## Welcoming Nicklas Lundin to the Technical Committee From c5dcef93575455f70fe9aa079448b6efe47c8ef5 Mon Sep 17 00:00:00 2001 From: Jonathan Norris Date: Thu, 13 Aug 2026 15:12:53 -0400 Subject: [PATCH 08/12] docs: list Feat, Rollgate, and Flagsmith PHP as shipped providers Signed-off-by: Jonathan Norris --- blog/2026-08-12-mid-2026-update.md | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/blog/2026-08-12-mid-2026-update.md b/blog/2026-08-12-mid-2026-update.md index 2da25c483..09032dc7f 100644 --- a/blog/2026-08-12-mid-2026-update.md +++ b/blog/2026-08-12-mid-2026-update.md @@ -37,9 +37,14 @@ We expect this trend to continue and welcome more vendors building on OpenFeatur ## New Vendors in the Ecosystem -Alongside the companies above, two more companies shipped their first OpenFeature providers: +Alongside the companies above, four more companies shipped their first OpenFeature providers: +- **[Feat](https://feat.so)** added JavaScript for both + [client](https://github.com/feathq/openfeature-web) and [server](https://github.com/feathq/js-sdk), + plus [Dart](https://github.com/feathq/openfeature-dart). - **[Featureflip](https://featureflip.io/)** added [JavaScript and .NET](https://featureflip.io/docs/integrations/openfeature/). +- **[Rollgate](https://rollgate.io/)** added a + [JavaScript server provider](https://github.com/rollgate/sdks/tree/main/packages/openfeature-server-provider). - **[Switchbox](https://switchbox.dev/)** added [JavaScript](https://github.com/ignat14/switchbox-sdk-js/tree/main/packages/openfeature), [React](https://switchbox.dev/docs/sdk/openfeature), @@ -47,7 +52,7 @@ Alongside the companies above, two more companies shipped their first OpenFeatur Existing vendors expanded their language coverage: -- **[Flagsmith](https://www.flagsmith.com/)** added [Kotlin](https://github.com/Flagsmith/flagsmith-openfeature-provider-kotlin). +- **[Flagsmith](https://www.flagsmith.com/)** added [Kotlin](https://github.com/Flagsmith/flagsmith-openfeature-provider-kotlin) and [PHP](https://github.com/open-feature/php-sdk-contrib/tree/main/providers/Flagsmith). - **[GO Feature Flag](https://gofeatureflag.org/)** added [Rust](https://gofeatureflag.org/docs/sdk/server_providers/openfeature_rust). - **[Unleash](https://www.getunleash.io/)** now maintains [seven official providers in beta](https://docs.getunleash.io/release-notes/2026/8/5#openfeature-providers-in-beta) @@ -57,11 +62,6 @@ Existing vendors expanded their language coverage: landed in the OpenFeature organization, and the web provider gained [Angular](https://github.com/open-feature/js-sdk-contrib/blob/main/libs/providers/unleash-web/README.md#angular-framework) and [React](https://github.com/open-feature/js-sdk-contrib/blob/main/libs/providers/unleash-web/README.md#react-framework) support. -More are in the pipeline, with listings [open for review](https://github.com/open-feature/openfeature.dev/pulls) as we publish this: -[Feat](https://feat.so) has JavaScript ([client](https://github.com/feathq/openfeature-web) and [server](https://github.com/feathq/js-sdk)) plus [Dart](https://github.com/feathq/openfeature-dart) providers, -[Rollgate](https://github.com/rollgate/sdks/tree/main/packages/openfeature-server-provider) has a JavaScript server provider, -and Flagsmith has added a [PHP provider](https://github.com/open-feature/php-sdk-contrib/tree/main/providers/Flagsmith). - If your company has a provider that is not listed, [let us know](https://github.com/open-feature/openfeature.dev/issues/new?assignees=&labels=provider&projects=&template=document-provider.yaml&title=%5BProvider%5D%3A+) and we will add it to the [ecosystem directory](/ecosystem). ## Welcoming Nicklas Lundin to the Technical Committee From 4f2d309c95b16d84901472f9c9ead7c272f21a5b Mon Sep 17 00:00:00 2001 From: Jonathan Norris Date: Thu, 13 Aug 2026 15:17:17 -0400 Subject: [PATCH 09/12] docs: rename 64-bit integer bullet to long support Signed-off-by: Jonathan Norris --- blog/2026-08-12-mid-2026-update.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/blog/2026-08-12-mid-2026-update.md b/blog/2026-08-12-mid-2026-update.md index 09032dc7f..4659fe8f2 100644 --- a/blog/2026-08-12-mid-2026-update.md +++ b/blog/2026-08-12-mid-2026-update.md @@ -101,7 +101,7 @@ Fourteen people made their first contribution to the specification in this relea Library authors, micro-frontends, and parallel test suites no longer have to share one process-global singleton. - **"DISABLED is a successful evaluation" rolled out to five flagd cores.** [JavaScript](https://github.com/open-feature/js-sdk-contrib/pull/1558), [Java](https://github.com/open-feature/java-sdk-contrib/pull/1800), [Go](https://github.com/open-feature/go-sdk-contrib/pull/896), [Python](https://github.com/open-feature/python-sdk-contrib/pull/395), and [.NET](https://github.com/open-feature/dotnet-sdk-contrib/pull/671) all shipped the change, each with a major version bump on the core library. A disabled flag now resolves successfully and returns your default rather than surfacing an error. -- **64-bit integer support arrived in the JVM SDKs.** [Java](https://github.com/open-feature/java-sdk/pull/1985) and [Kotlin](https://github.com/open-feature/kotlin-sdk/pull/225) both added long support, closing a gap where large flag values overflowed. +- **Long support arrived in the JVM SDKs.** [Java](https://github.com/open-feature/java-sdk/pull/1985) and [Kotlin](https://github.com/open-feature/kotlin-sdk/pull/225) both added a 64-bit integer type, closing a gap where large flag values overflowed. - **New providers.** Azure App Configuration ([JavaScript](https://github.com/open-feature/js-sdk-contrib/pull/1575)), localStorage ([JavaScript](https://github.com/open-feature/js-sdk-contrib/pull/1518)), Optimizely ([Go](https://github.com/open-feature/go-sdk-contrib/pull/802), with Java reaching 1.0.0), and GCP Secret Manager and Parameter Manager ([Java](https://github.com/open-feature/java-sdk-contrib/pull/1772)). - **Three breaking changes worth checking before you upgrade.** Python's `set_provider()` is now non-blocking with a new `set_provider_and_wait()` ([python-sdk#595](https://github.com/open-feature/python-sdk/pull/595)), fractional bucketing was overhauled ([js-sdk-contrib#1501](https://github.com/open-feature/js-sdk-contrib/pull/1501)) in a way that changes which users land in which variant, and the OFREP web provider [turned default polling off](https://github.com/open-feature/js-sdk-contrib/pull/1510). From 1fbde3b4b08df0b43579cacc7b37e9252693bdf1 Mon Sep 17 00:00:00 2001 From: Jonathan Norris Date: Thu, 13 Aug 2026 16:12:01 -0400 Subject: [PATCH 10/12] docs: add Featurevisor to the new vendors section Signed-off-by: Jonathan Norris --- blog/2026-08-12-mid-2026-update.md | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/blog/2026-08-12-mid-2026-update.md b/blog/2026-08-12-mid-2026-update.md index 4659fe8f2..c38a53856 100644 --- a/blog/2026-08-12-mid-2026-update.md +++ b/blog/2026-08-12-mid-2026-update.md @@ -37,12 +37,21 @@ We expect this trend to continue and welcome more vendors building on OpenFeatur ## New Vendors in the Ecosystem -Alongside the companies above, four more companies shipped their first OpenFeature providers: +Alongside the platforms above, five more projects shipped their first OpenFeature providers: - **[Feat](https://feat.so)** added JavaScript for both [client](https://github.com/feathq/openfeature-web) and [server](https://github.com/feathq/js-sdk), plus [Dart](https://github.com/feathq/openfeature-dart). - **[Featureflip](https://featureflip.io/)** added [JavaScript and .NET](https://featureflip.io/docs/integrations/openfeature/). +- **[Featurevisor](https://featurevisor.com/)** [added providers](https://featurevisor.com/blog/openfeature-providers/) across seven languages: + JavaScript for [Node.js](https://github.com/featurevisor/featurevisor/tree/main/packages/openfeature-provider-node) + and the [browser](https://github.com/featurevisor/featurevisor/tree/main/packages/openfeature-provider-web), + plus [Go](https://github.com/featurevisor/featurevisor-go/tree/main/openfeature), + [Java](https://github.com/featurevisor/featurevisor-java/tree/main/featurevisor-openfeature), + [PHP](https://github.com/featurevisor/featurevisor-php/blob/main/src/OpenFeatureProvider.php), + [Python](https://github.com/featurevisor/featurevisor-python/blob/main/src/featurevisor/openfeature.py), + [Ruby](https://github.com/featurevisor/featurevisor-ruby/blob/main/lib/featurevisor-openfeature.rb), + and [Swift](https://github.com/featurevisor/featurevisor-swift2/tree/main/Sources/FeaturevisorOpenFeature). - **[Rollgate](https://rollgate.io/)** added a [JavaScript server provider](https://github.com/rollgate/sdks/tree/main/packages/openfeature-server-provider). - **[Switchbox](https://switchbox.dev/)** added From bb8167ca181f9ecfd7628d46094e34dcd01cf293 Mon Sep 17 00:00:00 2001 From: Jonathan Norris Date: Thu, 13 Aug 2026 16:46:37 -0400 Subject: [PATCH 11/12] docs: add Octopus Deploy to the platform-native section Signed-off-by: Jonathan Norris --- blog/2026-08-12-mid-2026-update.md | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/blog/2026-08-12-mid-2026-update.md b/blog/2026-08-12-mid-2026-update.md index c38a53856..c83767fb5 100644 --- a/blog/2026-08-12-mid-2026-update.md +++ b/blog/2026-08-12-mid-2026-update.md @@ -1,6 +1,6 @@ --- title: 'OpenFeature Mid-2026 Update: Platform-Native Feature Flags, a New TC Member, and Spec v0.9.0' -description: 'Five large platforms shipped feature flag services supporting OpenFeature, new vendors joined the ecosystem, Nicklas Lundin joined the Technical Committee, and specification v0.9.0 shipped.' +description: 'Six large platforms shipped feature flag services supporting OpenFeature, new vendors joined the ecosystem, Nicklas Lundin joined the Technical Committee, and specification v0.9.0 shipped.' date: 2026-08-12 categories: ['OpenFeature', 'Feature Flags', 'CloudNative', 'Specification'] tags: [update, ecosystem, governance, spec] @@ -10,14 +10,14 @@ authors: ['jonathannorris'] --- It has been a busy few months since the [KubeCon EU 2026 recap](/blog/kubecon-eu-2026-recap). -Five large platforms shipped feature flag services supporting OpenFeature, more vendors joined the ecosystem, the Technical Committee grew, and we shipped the largest specification release in over two years. +Six large platforms shipped feature flag services supporting OpenFeature, more vendors joined the ecosystem, the Technical Committee grew, and we shipped the largest specification release in over two years. ## Platform-Native Feature Flags The biggest news of the last year is not something we built. -Five well-known platforms launched feature flag services of their own, and each chose OpenFeature as a critical part of its product offering. +Six well-known platforms launched feature flag services of their own, and each chose OpenFeature as a critical part of its product offering. - **[Datadog](https://docs.datadoghq.com/feature_flags/)** launched in late 2025 and describes its product as "built on the OpenFeature standard," now supporting OpenFeature providers across eight languages. Coverage spans server-side [Java](https://docs.datadoghq.com/feature_flags/server/java), [Node.js](https://docs.datadoghq.com/feature_flags/server/nodejs), [Python](https://docs.datadoghq.com/feature_flags/server/python), and [Ruby](https://docs.datadoghq.com/feature_flags/server/ruby), plus client-side [JavaScript](https://docs.datadoghq.com/feature_flags/client/javascript), [React](https://docs.datadoghq.com/feature_flags/client/react), [iOS](https://docs.datadoghq.com/feature_flags/client/ios), and [Android](https://docs.datadoghq.com/feature_flags/client/android/). @@ -30,6 +30,8 @@ Five well-known platforms launched feature flag services of their own, and each Notably, there is no Google-specific provider: their [quickstart](https://docs.cloud.google.com/saas-runtime/docs/flags/flags-quickstart) uses the community flagd provider as-is, with guides for Python, Java, and Go. - **[Mixpanel](https://mixpanel.com/blog/mixpanel-experimentation-feature-flags/)** launched feature flags alongside its experimentation suite in June. Its eight OpenFeature providers cover server-side [Go](https://github.com/mixpanel/mixpanel-go/tree/main/openfeature), [Java](https://github.com/mixpanel/mixpanel-java/tree/master/openfeature-provider), [JavaScript](https://github.com/mixpanel/mixpanel-node/tree/master/packages/openfeature-server-provider), [Python](https://github.com/mixpanel/mixpanel-python/tree/master/openfeature-provider), and [Ruby](https://github.com/mixpanel/mixpanel-ruby/tree/master/openfeature-provider), plus client-side [JavaScript](https://github.com/mixpanel/mixpanel-js/tree/master/packages/openfeature-web-provider), [Swift](https://github.com/mixpanel/mixpanel-swift-openfeature), and [Kotlin](https://github.com/mixpanel/mixpanel-android/tree/master/openfeature-provider). +- **[Octopus Deploy](https://octopus.com/blog/feature-flags-public-preview)** added feature flags in July, in public preview for Octopus Cloud customers. + Its documentation states that "Octopus Feature Flags rely on OpenFeature as the client SDK," with [providers](https://octopus.com/docs/feature-flags/providers) for server-side [.NET](https://github.com/OctopusDeploy/openfeature-provider-dotnet) and [Java](https://github.com/OctopusDeploy/openfeature-provider-java), plus [TypeScript](https://github.com/OctopusDeploy/openfeature-provider-ts-web) in the browser. This is what a standard is for. Each of these teams shipped a product without inventing new APIs and SDKs, so application code stays portable and teams remain free to move between them. From 4426fe0455949a3fa1a7d95b6e9f90cb461229ad Mon Sep 17 00:00:00 2001 From: Jonathan Norris Date: Fri, 14 Aug 2026 09:26:49 -0400 Subject: [PATCH 12/12] docs: add ConfigDirector, Pendo, Superposition, and PostHog providers Signed-off-by: Jonathan Norris --- blog/2026-08-12-mid-2026-update.md | 17 ++++++++++++++++- 1 file changed, 16 insertions(+), 1 deletion(-) diff --git a/blog/2026-08-12-mid-2026-update.md b/blog/2026-08-12-mid-2026-update.md index c83767fb5..7f10e8e1a 100644 --- a/blog/2026-08-12-mid-2026-update.md +++ b/blog/2026-08-12-mid-2026-update.md @@ -39,8 +39,10 @@ We expect this trend to continue and welcome more vendors building on OpenFeatur ## New Vendors in the Ecosystem -Alongside the platforms above, five more projects shipped their first OpenFeature providers: +Alongside the platforms above, eight more projects shipped their first OpenFeature providers: +- **[ConfigDirector](https://configdirector.com/)** added JavaScript for both + [browser](https://docs.configdirector.com/sdks/browser/openfeature-web) and [server](https://docs.configdirector.com/sdks/server/openfeature-node). - **[Feat](https://feat.so)** added JavaScript for both [client](https://github.com/feathq/openfeature-web) and [server](https://github.com/feathq/js-sdk), plus [Dart](https://github.com/feathq/openfeature-dart). @@ -54,8 +56,16 @@ Alongside the platforms above, five more projects shipped their first OpenFeatur [Python](https://github.com/featurevisor/featurevisor-python/blob/main/src/featurevisor/openfeature.py), [Ruby](https://github.com/featurevisor/featurevisor-ruby/blob/main/lib/featurevisor-openfeature.rb), and [Swift](https://github.com/featurevisor/featurevisor-swift2/tree/main/Sources/FeaturevisorOpenFeature). +- **[Pendo](https://www.pendo.io/)** added JavaScript providers for + [server](https://www.npmjs.com/package/@pendo/openfeature-server-provider) and [web](https://www.npmjs.com/package/@pendo/openfeature-web-provider). - **[Rollgate](https://rollgate.io/)** added a [JavaScript server provider](https://github.com/rollgate/sdks/tree/main/packages/openfeature-server-provider). +- **[Superposition](https://juspay.io/open-source/superposition)** added server-side + [Java](https://github.com/juspay/superposition/tree/main/clients/java/openfeature-provider), + [JavaScript](https://github.com/juspay/superposition/tree/main/clients/javascript/open-feature-provider), + [Python](https://github.com/juspay/superposition/tree/main/clients/python/provider), + and [Rust](https://github.com/juspay/superposition/tree/main/crates/superposition_provider), + plus client-side [Kotlin](https://juspay.io/open-source/superposition/docs/providers/openfeature/java/). - **[Switchbox](https://switchbox.dev/)** added [JavaScript](https://github.com/ignat14/switchbox-sdk-js/tree/main/packages/openfeature), [React](https://switchbox.dev/docs/sdk/openfeature), @@ -65,6 +75,11 @@ Existing vendors expanded their language coverage: - **[Flagsmith](https://www.flagsmith.com/)** added [Kotlin](https://github.com/Flagsmith/flagsmith-openfeature-provider-kotlin) and [PHP](https://github.com/open-feature/php-sdk-contrib/tree/main/providers/Flagsmith). - **[GO Feature Flag](https://gofeatureflag.org/)** added [Rust](https://gofeatureflag.org/docs/sdk/server_providers/openfeature_rust). +- **[PostHog](https://posthog.com/)** added official + [Node.js](https://github.com/PostHog/posthog-js/tree/main/packages/openfeature-node-provider), + [web](https://github.com/PostHog/posthog-js/tree/main/packages/openfeature-web-provider), + and [Python](https://github.com/PostHog/posthog-python/tree/main/openfeature-provider) providers, + where its JavaScript coverage had previously been community maintained. - **[Unleash](https://www.getunleash.io/)** now maintains [seven official providers in beta](https://docs.getunleash.io/release-notes/2026/8/5#openfeature-providers-in-beta) under its own organization, covering Node.js, PHP, Python, Ruby, Rust, Swift, and Android.