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[8.0.0] - 2022-12-07

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@keelerm84 keelerm84 released this 07 Dec 16:37
· 22 commits to v8 since this release
8.0.0
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Learn about vigilant mode.

The latest version of this SDK supports LaunchDarkly's new custom contexts feature. Contexts are an evolution of a previously-existing concept, "users." Contexts let you create targeting rules for feature flags based on a variety of different information, including attributes pertaining to users, organizations, devices, and more. You can even combine contexts to create "multi-contexts."

This feature is only available to members of LaunchDarkly's Early Access Program (EAP). If you're in the EAP, you can use contexts by updating your SDK to the latest version and, if applicable, updating your Relay Proxy. Outdated SDK versions do not support contexts, and will cause unpredictable flag evaluation behavior.

If you are not in the EAP, only use single contexts of kind "user", or continue to use the user type if available. If you try to create contexts, the context will be sent to LaunchDarkly, but any data not related to the user object will be ignored.

For detailed information about this version, please refer to the list below. For information on how to upgrade from the previous version, please read the migration guide for Swift or Objective-C.

Added:

  • The type LDContext defines the new context model.
  • For all SDK methods that took an LDUser parameter, there is now an overload that takes an LDContext.

Changed:

  • The secondary attribute which existed in LDUser is no longer a supported feature. If you set an attribute with that name in LDContext, it will simply be a custom attribute like any other.
  • Analytics event data now uses a new JSON schema due to differences between the context model and the old user model.
  • The SDK no longer adds device and os values to the user attributes. Applications that wish to use device/OS information in feature flag rules must explicitly add such information.

Removed:

  • Removed the secondary meta-attribute in LDUser.
  • The alias method no longer exists because alias events are not needed in the new context model.
  • The autoAliasingOptOut and inlineUsersInEvents options no longer exist because they are not relevant in the new context model.
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