launchdarkly-server-sdk-evaluation

2.2.1 (2026-08-19)

Bug Fixes

• Report slash- and tilde-prefixed redacted attributes as escaped references (#56) (70f4aaa)

This PR was generated with Release Please. See documentation.

Bug Fixes

• Report slash- and tilde-prefixed redacted attributes as escaped references (#56) (70f4aaa)

2.2.0 (2026-08-06)

Features

• Add optional float-roundtrip feature (#55) (d584fc2)

Bug Fixes

• Bump MSRV from 1.94 to 1.95 (#53) (34b3b12)

This PR was generated with Release Please. See documentation.

Features

• Add optional float-roundtrip feature (#55) (d584fc2)

Bug Fixes

• Bump MSRV from 1.94 to 1.95 (#53) (34b3b12)

2.1.4 (2026-06-08)

Bug Fixes

• Bump MSRV from 1.93 to 1.94 (#50) (80a97ad)

This PR was generated with Release Please. See documentation.

Bug Fixes

• Bump MSRV from 1.93 to 1.94 (#50) (80a97ad)

2.1.3 (2026-04-20)

Bug Fixes

• Bump MSRV from 1.92 to 1.93 (#46) (974bf2f)
• Expose unbounded context kind (#41) (3ff7c18)

This PR was generated with Release Please. See documentation.

Bug Fixes

• Bump MSRV from 1.92 to 1.93 (#46) (974bf2f)
• Expose unbounded context kind (#41) (3ff7c18)

2.1.2 (2026-04-06)

Bug Fixes

• Add unbounded context kind to segment type (#39) (aa2504f)

This PR was generated with Release Please. See documentation.

Bug Fixes

• Add unbounded context kind to segment type (#39) (aa2504f)

2.1.1 (2026-03-06)

Bug Fixes

• Bump MSRV from 1.91 to 1.92 (#36) (7697371)

This PR was generated with Release Please. See documentation.

Bug Fixes

• Bump MSRV from 1.91 to 1.92 (#36) (7697371)

2.1.0 (2026-03-02)

Features

• Add support for flag / segment builders (#33) (fd63046)

This PR was generated with Release Please. See documentation.

Features

• Add support for flag / segment builders (#33) (fd63046)

2.0.2 (2026-01-26)

Bug Fixes

• Bump MSRV from 1.82 to 1.88 (#31) (a8203f3)
• Bump MSRV from 1.88 to 1.91 (#32) (e83366b)
• Bump MSRV to 1.82.0 (#28) (380fc74)

Bug Fixes

• Bump MSRV from 1.82 to 1.88 (#31) (a8203f3)
• Bump MSRV from 1.88 to 1.91 (#32) (e83366b)
• Bump MSRV to 1.82.0 (#28) (380fc74)

2.0.1 (2025-01-28)

Bug Fixes

• Bump MSRV to 1.74.0 (#26) (44e5650)
• Update base16ct to v0.2.0 (aac23e0)
• Update itertools to v0.14.0 (aac23e0)
• Update serde_with to v3.12.0 (aac23e0)

Bug Fixes

• Bump MSRV to 1.74.0 (#26) (44e5650)
• Update base16ct to v0.2.0 (aac23e0)
• Update itertools to v0.14.0 (aac23e0)
• Update serde_with to v3.12.0 (aac23e0)

2.0.0 (2024-07-10)

⚠ BREAKING CHANGES

• Add exclude from summary field to flag (#18)
• Add migration and sampling ratio fields (#17)

Features

• Add exclude from summary field to flag (#18) (ca935a3)
• Add method to strip anonymous contexts (#21) (f76faa6)
• Add migration and sampling ratio fields (#17) (5e4e969)
• Add serialize trait to Detail (#16) (683231e)

Bug Fixes

• Bump msrv to 1.67.1 (#22) (4b02096)

⚠ BREAKING CHANGES

• Add exclude from summary field to flag (#18)
• Add migration and sampling ratio fields (#17)

Features

• Add exclude from summary field to flag (#18) (ca935a3)
• Add method to strip anonymous contexts (#21) (f76faa6)
• Add migration and sampling ratio fields (#17) (5e4e969)
• Add serialize trait to Detail (#16) (683231e)

Bug Fixes

• Bump msrv to 1.67.1 (#22) (4b02096)

Features

• Support redacting all attributes from anonymous contexts (#14) (76d5e52)

Fixed:

• Fixed an issue with evaluation of segments which included/excluded users when that user was part of a multi-context.

Changed:

• Updated MSRV from 1.60.0 to 1.64.0

Fixed:

• Fix invalid encoding for fully qualified context key generation.

This release of the evaluation engine corresponds to the upcoming v1.0.0 release of the LaunchDarkly server-side Rust SDK (launchdarkly-server-sdk), and is not compatible with earlier SDK versions.

Added:

• Added the types Context, Kind, ContextBuilder, MultiContextBuilder, Reference, and supporting types. Context defines the new context-based evaluation model. Context replace User, which was removed.
• Added: urlencoding @ 2.1.0
• Added: maplit @ 1.0.1
• Added: itertools @ 0.10.3
• Added: serde_with @ 2.1.0

Changed:

• The MSRV is now 1.60.0
• Updated: chrono from 0.4.15 to 0.4.23; only enable the "std" feature
• Updated: semver from 0.10.0 to 1.0.14
• evaluate now takes a Context instead of a User
• User keys could previously be empty strings. With contexts, the key cannot be empty.
• The "secondary" meta-attribute which affected percentage rollouts has been removed. If you set an attribute with that name in a context, it will be a custom attribute like any other.
• For backwards-compatibility, it is possible to enable "secondary" evaluation logic within the evaluation engine by enabling the secondary_key_bucketing flag. This will only affect contexts that were created via deserialization, since it is not possible to set "secondary" via a builder method.

Removed:

• User, UserBuilder, UserAttributes. See Context, ContextBuilder and MultiContextBuilder instead.

Changed

• Update to edition 2021.
• Change store signature to support persistent stores.

Added

• Support flag serialization of old and current schema.
• Add versioned trait (implemented by flag and segment).

Changed

• Bump sha1 and test_case dependencies.

Fixed

• When serializing a user, custom attributes were incorrectly being flattened in the JSON output. We now correctly encode them under a custom key.

Added

• Add support for globally and user specific private attributes.

Changed

• If we receive a negative variation index, or an unsupported operation, the SDK should not fail to parse the payload.

Changed

• Modified the try_map function to accept a default value when returning a new Detail instance.

Initial release of flag evaluation support code that will be used with the LaunchDarkly Server-Side SDK for Rust.