Go SDK

7.15.0 (2026-05-28)

Features

• add X-LaunchDarkly-Instance-Id header (SDK-2350) (#375) (67ebe5d)
• Drop persistent-store cache after FDv2 in-memory store init (#373) (9a29b20)

Bug Fixes

• execute afterTrack hooks in registration order (#379) (851d1d0)
• remove non-spec Silent/Catastrophe fields from FDv2 Goodbye (#369) (381cffe)

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0.9.0 (2026-05-11)

⚠ BREAKING CHANGES

• Tracker no longer returned alongside AI Configs, use Config.CreateTracker() instead
• Add per-execution runId, at-most-once tracking, and cross-process tracker resumption (#363)

Features

• Add per-execution runId, at-most-once tracking, and cross-process tracker resumption (#363) (c11294f)
• Rename TrackUsage to TrackTokens (#364) (9b0863a)
• Tracker no longer returned alongside AI Configs, use Config.CreateTracker() instead (c11294f)

Bug Fixes

• Prevent context attributes from influencing judge template parsing (SEC-8020) (#361) (a14fc86)

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7.14.7 (2026-04-28)

Bug Fixes

• Honor x-ld-fd-fallback header in fdv2 initializer phase (SDK-2203) (#365) (82d0b98)

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7.14.6 (2026-02-26)

Bug Fixes

• Expand data system config to allow for list of synchronizers (#343) (0956ce9)
• improves fallback behavior when using custom data system configuration (#348) (4f5b1e9)

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0.8.1 (2026-02-26)

Bug Fixes

• Improve usage reporting (#353) (0146f76)

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1.3.1 (2026-02-26)

Bug Fixes

• Bump minimum go to 1.24 (#325) (6e2cebf)

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0.1.0 (2026-02-26)

Bug Fixes

• Bump minimum go to 1.24 (#325) (6e2cebf)
• experimental: Add ldmiddleware library, utilities for creating scoped clients, contexts, events automatically (#306) (b175f8c)

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0.8.0 (2026-02-10)

Features

• add AI Config judge support (#345) (4a9d03d)

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7.14.5 (2026-01-16)

Bug Fixes

• Remove disable streaming warning (#340) (6fc5062)

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7.14.4 (2025-12-15)

Bug Fixes

• fdv2 datasystem leaves sychronizer open after client is closed (#337) (e29ee24)

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7.14.3 (2025-12-05)

Bug Fixes

• Optimize creation of changesets from collections (#335) (d6fd601)

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7.14.2 (2025-12-02)

Bug Fixes

• Add ChangeSet.Collections to help reduce relay memory usage (#332) (ca33a3c)
• align fdv2 intializer to spec (#330) (68599fa)
• Update changeset builder to support chaining calls (#333) (69e269b)

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7.14.1 (2025-11-21)

Bug Fixes

• Bump github.com/launchdarkly/go-ntlm-proxy-auth from v1.0.2 -> v1.0.3 (#326) (822e8d6)
• Bump minimum go to 1.24 (#325) (6e2cebf)

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7.14.0 (2025-11-12)

Features

• Add new transport configuration options (#320) (e2d9a7c)

0.7.2 (2025-09-02)

Bug Fixes

• Add usage tracking to config method (#307) (400a61e)

7.13.4 (2025-08-21)

Bug Fixes

• experimental: Update usability warning for LDScopedClient - in beta, subject to change (#312) (b1b102c)

7.13.3 (2025-08-20)

Bug Fixes

• experimental: NewScopedClient can now only take one context argument (#309) (b149429)
• experimental: NewScopedClient, AddContext, OverwriteContextByKind emit usage events (#310) (4a36949)

7.13.2 (2025-08-14)

Bug Fixes

• experimental: Add experimental LDScopedClient for incrementally building and propagating contexts (#297) (2b96332)
• experimental: Functions for putting/getting an LDScopedClient from context.Context (#305) (d61c744)

0.7.1 (2025-07-29)

Bug Fixes

• Remove deprecated track generation event (#301) (ca20f09)
• Update AI tracker to include model & provider name for metrics generation (#302) (9a84146)

7.13.1 (2025-07-25)

Bug Fixes

• Bump go-sdk-common from v3.1.0 to v3.4.0 (#299) (ba1c05b)