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Changelog

All notable changes to the LaunchDarkly React Native SDK will be documented in this file. This project adheres to Semantic Versioning.

[6.2.0] - 2022-05-17

Changed:

  • iOS: Using "custom" as a private attribute name in LDConfig.privateAttributeNames or LDUser.privateAttributeNames will no longer set all LDUser custom attributes private.
  • iOS: The automatically set device and operatingSystem custom attributes can now be set private.
  • iOS: Significant internal changes from updating to the 6.0.0 release of the iOS SDK.

Fixed:

  • The TypeScript definitions for LDClient.jsonVariation and LDClient.jsonVariationDetail no longer restrict the defaultValue and result type to Record<string, any>. These methods can accept any for defaultValue and return any type.

[6.1.3] - 2022-04-14

Added:

  • React Native 0.68 Support

Fixed:

  • Android: variationDetail methods return the correct variation when the reason is not present
  • Android: The object returned by variationDetail methods will now include the inExperiment field when appropriate.
  • ManualTestApp Int and Float options now work correctly

[6.1.2] - 2022-03-25

Fixed:

  • Android: Prevent multiple allocations of the DiagnosticEventProcessor.

[6.1.1] - 2022-03-18

Fixed:

  • iOS: Fixed race condition in LDSwiftEventSource that could cause a crash if the stream is explicitly stopped (such as when identify is called) while the stream is waiting to reconnect.

[6.1.0] - 2022-02-25

Added:

  • Added privateAttributeNames configuration option for LDConfig allowing the configuration of private attributes for all users. (#102)

Fixed:

  • Android: Updated Android SDK dependency to 3.1.3.
  • Android: Added missing native module API stubs to prevent warning on NativeEventEmitter. (#116)
  • iOS: Fixed ownership handling of native callbacks to avoid garbage collection of all flags and connection mode listeners that are still in use. (#106)

[6.0.0] - 2022-02-10

Added:

  • Expanded supported versions of React Native to include 0.65, 0.66, and 0.67 releases.
  • Added a manual testing application to the repository.
  • Extensive testing of build configurations in CI to allow quicker validation of compatibility against multiple React Native releases and XCode versions.

Changed:

  • iOS: The native podspec for iOS has been renamed to fix automatic linking. Updating may require removing references to the old podspec.

Fixed:

  • iOS: Fixed an issue that prevented using jsonVariation and jsonVariationDetail with array default values. (#112)

Removed:

  • Support for React Native 0.63.

[5.1.1] - 2022-01-21

Changed:

  • The key property on LDUser objects is now optional, if it is not provided the SDK will automatically generate a key and mark the user as anonymous. See the API documentation for more details.
  • Updated native Android and iOS SDK to the 3.1.2 release and 5.4.4 release respectively.

Fixed:

  • Android: Removed reference of jcenter from the Gradle build to reflect the shutdown of the JCenter artifact repository.
  • iOS: isOffline has been corrected to no longer return true when online and false when offline.
  • iOS: Fixed memory leak when stream connections are terminated caused by the native server sent events implementation.

[5.1.0] - 2021-09-30

Added:

  • Added the inlineUsersInEvents configuration option which can be used to configure the SDK to include full user details in all analytics events.

Changed:

  • Restored compatibility with React Native 0.63, this version of the SDK can be used with either 0.63 or 0.64 React Native releases.

Fixed:

  • Added missing TypeScript definition for autoAliasingOptOut configuration field.
  • Fixed an outdated LDClient#isInitialized description (Thanks, christophby!)

[5.0.1] - 2021-09-03

Fixed:

  • Android: Fixed an inconsistency in the argument type given to all flags listeners. On Android the callback was given a string with a JSON representation of an array of strings, rather than an actual array of strings. (Thanks, rodperottoni!) (#89)
  • Android: Fixed runtime crashes caused by code shrinking when compiling with Proguard/R8. The SDK now specifies consumer Proguard rules for Android SDK methods accessed with runtime reflection.
  • Android: Removed the android:allowBackup tag from the SDK's AndroidManifest.xml file to avoid requiring applications to explicitly replace the tag if given a different value. (#138)
  • Android: Changed the SDK's network detection check to consider network transport over a VPN as a connected state. This fixes an issue where the SDK would prevent network requests on a VPN due to considering the network to be unavailable. (Thanks, lguipeng!)

[5.0.0] - 2021-08-20

Added:

  • The SDK now supports the ability to control the proportion of traffic allocation to an experiment. This works in conjunction with a new platform feature now available to early access customers.
  • Added numberVariation and numberVariationDetail to LDClient.
  • Added the alias method to LDClient. This can be used to associate two user objects for analytics purposes with an alias event.
  • Added the autoAliasingOptOut configuration option. This can be used to control the new automatic aliasing behavior of the identify method; by setting autoAliasingOptOut to true, identify will not automatically generate alias events.
  • Improved testing of JavaScript wrapper using mock native modules.

Changed (requirements/dependencies/build):

  • iOS: The underlying SDK version has been updated from 5.4.1 to 5.4.3. See the release notes for details.
  • Android: The underlying SDK version has been updated from 2.14.1 to 3.1.0. See the release notes for details.
  • Android: Migrated from using the Android Support Libraries to using AndroidX from Jetpack.
  • Android: The minimum API version has been raised from API level 16 (Android 4.1 Jelly Bean) to API level 21 (Android 5.0 Lollipop).
  • Android: The SDK no longer has a dependency on Google Play Services. This dependency was only used on pre-21 Android API levels to improve TLS 1.2 compatibility, as the minimum Android version has been raised to 21, the dependency is no longer necessary.
  • Android: The SDK is now built with modern Gradle (6.7, Android plugin 4.1.3) and uses Java 8.

Changed (API/behavioral):

  • The LDClient.identify method will now automatically generate an alias event when switching from an anonymous to a known user. This event associates the two users for analytics purposes as they most likely represent a single person. This behavior can be disabled with the autoAliasingOptOut configuration option.
  • The LDClient &lt;type&gt;Variation and &lt;type&gt;VariationDetail methods (e.g. boolVariation) now validate that default values are the correct type. If the default value fails validation the Promise will be rejected.
  • The primitive variation methods, LDClient.boolVariation, LDClient.boolVariationDetail, LDClient.numberVariation, and LDClient.numberVariationDetail, now require a default value parameter (rather than being optional). If missing, the Promise will be rejected.
  • Android: LDClient.allFlags will no longer convert String flags into JSON Arrays or Objects when the value can be parsed into JSON Arrays or Objects.
  • Android: For compatibility with older SDK behavior, the LDClient.stringVariation method could be used to retrieve JSON flags in a serialized representation. This compatibility behavior has been removed, and attempts to request a JSON valued flag using stringVariation will behave the same as other mismatched type variation calls.
  • Android: All log messages are now tagged LaunchDarklySdk for easier filtering. Thanks to @valeriyo for the suggestion (#113).
  • Android: The when the country user is set, the SDK will no longer attempt to look up the country from the provided String (attempting to match it as an ISO-3166-1 alpha-2, alpha-3 code; or a country name) and set the country to the resultant IOS-3166-1 alpha-2 only if successful. The SDK no longer gives this attribute special behavior, and sets the user's country attribute directly as the provided String.
  • Android: If the debugMode configuration option is set to true, the SDK will now enable detailed timber logging.
  • Android: Custom user attributes that are Objects will no longer be ignored.
  • Android: Elements of Array custom user attributes will no longer be ignored if they are not Strings or Numbers.
  • Android: Array custom user attributes with mixed types will no longer ignore non-String elements.

Fixed (Android):

  • Catch SecurityException when thrown on call to getNetworkCapabilities used to detect current network availability. (#129)
  • Explicitly flag PendingIntents as FLAG_IMMUTABLE on Android SDK versions that support doing so. Explicitly specifying mutability is required when targeting Android S+. (#133)
  • Increased the compile-time dependency on jackson-databind to 2.10.5.1, due to CVE-2020-25649.
  • Update the dependency on the shared launchdarkly/java-sdk-common to 1.1.2 to prevent Jackson from showing up as a transitive dependency in tools that inspect module metadata.
  • The Android manifest has been updated to explicitly specify the android:exported attribute on declared receiver elements. This is to meet new requirements in the upcoming Android 12 release.
  • Fixed an issue where the SDK could log error level messages when attempting to send diagnostic events without an internet connection. The SDK will no longer attempt to send diagnostic events when an internet connection is known to be unavailable, and will not log an error level message if the connection fails. Thanks to @valeriyo for reporting (#107).
  • Fixed an issue where flags listeners would be informed of changes to unchanged flags whenever the SDK receives an entire flag set (on a new stream connection, a poll request, or any stream updates behind a relay proxy).
  • Fixed an issue where a NullPointerException is thrown if LDClient.close() is called multiple times.
  • Improved the proguard/R8 configuration to allow more optimization. Thanks to @valeriyo for requesting (#106)
  • Fixed a potential issue where the SDK could cause additional throttling on requests to the backend service when previously throttled requests had been cancelled before completion.

Fixed (iOS):

  • Fixed an issue where 304 NOT_MODIFIED responses to SDK polling mode requests would be considered error responses. This could cause the completion on a identify request to not complete, and gave erroneous connection information data and logging output.
  • Fixed a crash when attempting to cache flag data containing variation JSON values containing a JSON null value nested within a JSON array.
  • Avoid crash when timeout/interval configuration options are set to sufficiently large values. This was caused when converting these values to an Int value of milliseconds. (Thanks, @delannoyk!)
  • Update Quick test dependency to 3.1.2 to avoid build warnings and adopt security fixes. (#243)
  • Use AnyObject over class in protocol inheritance to avoid compiler warnings. (#247)

Removed:

  • LDClient.intVariation and LDClient.floatVariation. Please use LDClient.numberVariation instead.
  • LDClient.intVariationDetail and LDClient.floatVariationDetail. Please use LDClient.numberVariationDetail instead.

[4.2.2] - 2021-06-15

Fixed:

  • Correct usages of undeclared variables when registering or un-registering connection mode or all flags listeners. (#82)

[4.0.4] - 2021-06-02

Fixed:

  • iOS: Fixed an issue where an exception was thrown when calling LDClient.configure with an optional timeout (#80).

[4.2.1] - 2021-06-01

Fixed:

  • iOS: Fixed an issue where an exception was thrown when calling LDClient.configure with an optional timeout (#80).
  • iOS: Improved consistency with Android for LDClient.isInitialized. Both implementations will now reject the promise if the client has not been configured.
  • iOS: Avoid exceptions on iOS when certain methods are called after LDClient.close. (Thanks, andvalsol)! (#75)
  • Android: Fixed an issue where the promise for LDClient.configure could be resolved before the client had finished initializing when not providing the optional timeout parameter.
  • Android: Fixed an issue where LDClient.allFlags would reject the promise when the client was configured but not yet initialized, rather than resolving with any cached flags.

[4.2.0] - 2021-05-19

Added:

  • LDUser now has an optional secondary attribute to match other LaunchDarkly SDKs. For more on the behavior of this attribute see the documentation on targeting users.
  • Support for multiple LaunchDarkly projects or environments. Each set of feature flags associated with a mobile key is called an environment. (#10)
    • secondaryMobileKeys is now a config option which allows a mapping of names to the SDK keys for each additional environment. mobileKey is still required, and represents the primary environment.
    • Many methods including variations, track, and listeners now support an optional environment parameter to evaluate the method against the given environment.

[4.1.2] - 2021-04-28

Fixed:

  • The LDEvaluationReasonErrorKind, LDEvaluationReasonKind, LDConnectionMode, and LDFailureReason enum TypeScript types were undefined when evaluated at runtime due to being defined in an ambient context. This was also fixed in SDK version 4.0.3 with React Native 0.63 compatibility.

[4.0.3] - 2021-04-28

Fixed:

  • The LDEvaluationReasonErrorKind, LDEvaluationReasonKind, LDConnectionMode, and LDFailureReason enum TypeScript types were undefined when evaluated at runtime due to being defined in an ambient context.

[4.1.1] - 2021-04-23

Fixed:

  • Android: Fixed an issue where the jsonVariationDetail method in LDClient returned Promise<Record<string, any>> instead of the declared return type of Promise<LDEvaluationDetail<Record<string, any>>>. This was also fixed in SDK version 4.0.2 with React Native 0.63 compatibility.

[4.0.2] - 2021-04-23

Fixed:

  • Android: Fixed an issue where the jsonVariationDetail method in LDClient returned Promise<Record<string, any>> instead of the declared return type of Promise<LDEvaluationDetail<Record<string, any>>>.

[4.1.0] - 2021-04-13

Added:

  • The SDK is now compatible with React Native version 0.64.x. (#69)

Removed:

  • The SDK no longer requires React as a peer dependency. React compatibility is dictated based on its compatibility with the React Native version.

[4.0.1] - 2021-04-06

Fixed:

  • iOS: Internal throttling logic would sometimes delay new poll or stream connections even when there were no recent connections. This caused switching active user contexts using identify to sometimes delay retrieving the most recent flags, and therefore delay the completion of the returned Promise.

[4.0.0] - 2021-03-31

Added:

  • Added getConnectionMode, getLastSuccessfulConnection, getLastFailedConnection, and getLastFailure methods to LDClient. These methods can be used to report on the SDK's connection to LaunchDarkly. The new LDConnectionMode and LDFailureReason enum types have been added to support these methods. These methods replace the getConnectionInformation method which behaved differently across platforms.
  • Added a getVersion method to LDClient to get the version of the React Native SDK.
  • Added an optional timeout value to the configure method to specify that the SDK should block up to a specified duration while initializing.
  • Added a new client configuration option, maxCachedUsers, to LDClientConfig. You can now specify the number of users to be cached locally on the device or use -1 for unlimited cached users.
  • Added new user configuration options, ip and avatar, to LDUserConfig.
  • The SDK now periodically sends diagnostic data to LaunchDarkly, describing the version and configuration of the SDK, the operating system the SDK is running on, the device type (such as "iPad"), and performance statistics. No credentials, device IDs, or other identifiable values are included. This behavior can be disabled or configured with the new LDClientConfig properties diagnosticOptOut and diagnosticRecordingInterval.
  • Added reporting of the SDK's "wrapper name" and "wrapper version" for internal reporting purposes.
  • iOS: Added XCode 12 support (#64)
  • iOS: Added support for the isInitialized method. Previously this method only worked when running on Android.

Changed:

  • Renamed the LDClientConfig type to LDConfig for consistency with other LaunchDarkly SDKs. Corresponding parameter names and documentation have also been updated to reflect this change.
  • Renamed the LDUserConfig type to LDUser for consistency with other LaunchDarkly SDKs. Corresponding parameter names and documentation have also been updated to reflect this change.
  • Renamed baseUri in LDConfig (formerly LDClientConfig) to pollUri to clarify that this URI is only used when polling.
  • The fallback parameter of all LDClient variation methods has been renamed to defaultValue to help distinguish it from fallback values in rules specified in the LaunchDarkly dashboard.
  • Changed the default polling domain from app.launchdarkly.com to clientsdk.launchdarkly.com.
  • Android: Updated the Android SDK native module from 2.10.0 to 2.14.1
  • Android: Error stacktrace logging in the bridge layer now uses Timber instead of System.err
  • iOS: Updated the iOS SDK native module from 4.5.0 to 5.4.0 (#65)
  • iOS: The minimum iOS deployment target has been updated from 8.0 to 10.0.
  • iOS: The maximum backoff delay between failed streaming connections has been reduced from an hour to 30 seconds. This is to prevent being unable to receive new flag values for up to an hour if the SDK has reached its maximum backoff due to a period of network connectivity loss.
  • iOS: The backoff on streaming connections will not be reset after just a successful connection, rather waiting for a healthy connection for one minute after receiving flags. This is to reduce congestion in poor network conditions or if extreme load prevents the LaunchDarkly service from maintaining an active streaming connection.
  • iOS: When sending events to LaunchDarkly, the SDK will now retry the request after a one second delay if it fails.
  • iOS: When events fail to be sent to LaunchDarkly, the SDK will no longer retain the events. This prevents double recording events when the LaunchDarkly service received the event but the SDK failed to receive the acknowledgement.

Fixed:

  • The getConnectionInformation method in LDClient had inconsistent return types across the iOS and Android platforms. This API has been split into separate methods which are consistently typed across platforms - see the notes above. (#59)
  • Android: Fixed an issue where identify ran on the current thread instead of on a background thread (thanks, orthanc and hackdie!)
  • Android: Fixed an issue where an exception was thrown if configure was invoked multiple times. Now, subsequent invocations result in a rejected promise. (#40)
  • Android: Fixed an issue where the evaluationReasons option in LDClientConfig was not used when configuring the Android SDK native module.
  • Android: Fixed an issue where NullPointerExceptions were possible if certain methods were invoked while the client was initializing (discussed in #55)
  • Android: Fixed an issue where initialization may never complete if the network status of foreground state changed before the future had completed.
  • Android: Fixed an issue where a NullPointerException could occur when calling a variation method with a flag key that does not exist locally or is of the wrong type. This issue could only occur if a null fallback value was provided.
  • Android: Improved event summarization logic to avoid potential runtime exceptions.
  • Android: Internal throttling logic would sometimes delay new poll or stream connections even when there were no recent connections. This caused switching active user contexts using identify to sometimes delay retrieving the most recent flags, and therefore delay the completion of the returned Promise.
  • Android: Previously, the SDK manifest required the SET_ALARM permission. This permission was never used, so it has been removed.
  • Android: Improved handling of exceptions thrown by the alarm manager on Samsung devices.
  • iOS: Fixed an issue preventing private custom attribute names being recorded in events when all custom attributes are set to be private by including "custom" in the LDUserConfig.privateAttributeNames or LDClientConfig.allUserAttributesPrivate properties.
  • iOS: Fixed an issue to prevent a crash that would rarely occur as the SDK transitioned to an online state for a given configuration or user. This issue may have been exacerbated for a short period due to a temporary change in the behavior of the LaunchDarkly service streaming endpoint.
  • OS: Fix metricValue argument to track to work with all numbers.

Removed:

  • Removed the LDClientConfig type.
  • Removed the LDUserConfig type.
  • Removed the getConnectionInformation method in LDClient.
  • Removed the isDisableBackgroundPolling method in LDClient.
  • Removed the baseUri attribute in LDConfig (formerly LDClientConfig).

[3.2.2] - 2020-12-02

Fixed:

  • Changed iOS all flags listener to only return [LDFlagKey] instead of [LDFlagKey: LDChangedFlag]. (#61)

[3.2.1] - 2020-08-26

Fixed:

  • isInitialized was failing when run in Android due to accessing an undefined variable. (#55)

[3.2.0] - 2020-07-10

Changed:

  • The SDK is now compatible with React Native version 0.63.x and React version 16.13.x.

Removed:

  • The SDK no longer supports iOS 9. This change was made to correspond to React Native 0.63's dropped support for iOS 9.

[3.1.2] - 2020-05-21

Fixed:

  • The track method failed when called with a boolean data value and a non-null metricValue. (Thanks, bolak!)

[3.1.1] - 2020-04-24

Changed:

  • Updated the Android target and compile versions to 28

[3.1.0] - 2020-04-01

Changed:

  • The SDK is now compatible with React Native version 0.62.x and React version 16.11.x

[3.0.2] - 2020-03-31

Changed:

  • Updated SDK code to build, run, and test on Xcode 11.4.

[3.0.1] - 2020-02-26

Added:

Fixed:

  • Fixed some incorrect and incomplete typedoc comments.

[3.0.0] - 2020-02-20

Added:

  • Added TypeScript type definitions (thanks, eeynard!)
  • Added TypeDoc comments
  • The SDK now specifies a uniquely identifiable request header when sending events to LaunchDarkly to ensure that events are only processed once, even if the SDK sends them two times due to a failed initial attempt.

Changed:

  • Changed the default value for the anonymous user property has been changed to false. Previously this default was inconsistent; the default value was true when running in iOS and false when running in Android.
  • Changed the default value for the backgroundPollingIntervalMillis SDK configuration property has been changed to 3600000 (one hour). Previously this default was inconsistent; the default value was 900000 (15 minutes) when running in iOS and 3600000 (one hour) when running in Android.
  • Changed the default value for the disableBackgroundUpdating SDK configuration property has been changed to false. Previously this default was inconsistent; the default value was true when running in iOS and false when running in Android.

Fixed:

  • Fixed the *VariationDetail methods so that they now always return a promise containing the variation detail information. Previously, when running in Android, this promise would have instead contained just the variation value if the underlying process threw an exception.
  • Fixed an issue where React Native apps could crash after reloading when running in iOS (thanks, shercoder!)

[2.2.0] - 2020-01-24

Added:

  • Adds evaluationReasons configuration option.
  • Adds user.country user option.

Fixed:

  • Fixes iOS start completion by adding new method startCompleteWhenFlagsReceived. This change creates feature parity between the start completion on iOS and Android. They now both complete when flag values are received.
  • Fixes EvaluationDetail parsing from native to JS.

[2.1.0] - 2019-12-23

Added:

  • Implemented variationDetail which returns an Evaluation Reason giving developers greater insight into why a value was returned.
  • Added allFlagsListener method, this returns flag keys whenever any flag key is updated.
  • Added metricValue parameter to track method.
  • The Connection Status API allows greater introspection into the current LaunchDarkly connection and the health of local flags.
    • This feature adds a new method called getConnectionInformation that returns an object that contains the current connection mode e.g. streaming or polling, when and how a connection failed, and the last time flags were updated.
    • Additionally, a new observer function called registerCurrentConnectionModeListener allows your application to listen to changes in the SDK's connection to LaunchDarkly.
  • A close() method which flushes the event queue and closes all open connections to LaunchDarkly. This method should be invoked as part of your application's termination lifecycle event.

Changed:

  • Updated the iOS SDK to version 4.3.2. This enables the removal of use_frameworks! from the Podfile in a project using the LaunchDarkly React Native SDK.
  • Updated the Android SDK to version 2.9.0.
  • Switched iOS user switching from the deprecated user object to the identify method.

[2.0.3] - 2019-11-25

Changed:

  • The SDK's dependency on React Native has been expanded to include subsequent patch releases after 0.61.2.

Fixed:

  • The Android package is properly namespaced now as com.launchdarkly.reactnative. Previously the Android module's package was com.reactlibrary which was prone to clash with other third-party modules' packages. (#25)

[2.0.2] - 2019-10-04

Changed

  • Updated React Native to version 0.61.2 and updated React to version 16.9.0

[2.0.1] - 2019-06-27

Fixed

  • Listeners on Android now have the proper event emitter key and work properly.
  • Flag values in the object returned by allFlags will no longer be Strings when they should be JSON Objects on Android.

Changed

  • Updated Android Client SDK to version 2.8.5
  • Updated iOS Client SDK to version 4.1.2

[2.0.0] - 2019-06-27

Fixed

  • Changes polling mode to not be ignored in config.

Changed

  • Updated Android Client SDK to version 2.8.4
  • Updated iOS Client SDK to version 4.1.0
  • Updated React Native to version 0.59.9 and updated React to version 16.8.3
  • Updated to allow usage with Xcode 10.2.1
  • Updated Swift to version 5.0

This is a major version because of breaking version updates.

[1.0.1] - 2019-05-03

Changed

  • Changed the package name from launchdarkly-react-native-client to launchdarkly-react-native-client-sdk
  • Changed repository references to use the new URL

There are no other changes in this release. Substituting launchdarkly-react-native-client version 1.0.0 with launchdarkly-react-native-client-sdk version 1.0.1 will not affect functionality.

[1.0.0] - 2019-04-18

Changed

  • Android and iOS client versions

Fixed

  • Added correct anonymous property
  • Removed dependencies and added caret to peer dependencies

Note on future releases

The LaunchDarkly SDK repositories are being renamed for consistency. This repository is now react-native-client-sdk rather than react-native-client.

The package name will also change. In the 1.0.0 release, it is still launchdarkly-react-native-client; in all future releases, it will be launchdarkly-react-native-client-sdk.

[1.0.0-beta.1] - 2019-03-01

Added

  • CHANGELOG.md and CONTRIBUTING.md

Changed

  • Moved LaunchDarklyReactNativeClient.podspec into ios/

Fixed

  • Changed config.yml to run against hello-react-native.