5.5.4

[5.5.4] - 2019-03-29

Fixed:

• Fixed a missing require that could sometimes cause a NameError to be thrown when starting the client, depending on what other gems were installed. This bug was introduced in version 5.5.3. (#129)
• When an analytics event was generated for a feature flag because it is a prerequisite for another flag that was evaluated, the user data was being omitted from the event. (#128)
• If track or identify is called without a user, the SDK now logs a warning, and does not send an analytics event to LaunchDarkly (since it would not be processed without a user).
• Added a link from the SDK readme to the guide regarding the client initialization.

5.5.3

[5.5.3] - 2019-02-13

Changed:

• The SDK previously used the faraday and net-http-persistent gems for all HTTP requests other than streaming connections. Since faraday lacks a stable version and has a known issue with character encoding, and net-http-persistent is no longer maintained, these have both been removed. This should not affect any SDK functionality.

Fixed:

• The SDK was not usable in Windows because of net-http-persistent. That gem has been removed.
• When running in Windows, the event-processing thread threw a RangeError due to a difference in the Windows implementation of concurrent-ruby. This has been fixed.
• Windows incompatibilities were undetected before because we were not running a Windows CI job. We are now testing on Windows with Ruby 2.5.

5.5.2

[5.5.2] - 2019-01-18

Fixed:

• Like 5.5.1, this release contains only documentation fixes. Implementation classes that are not part of the supported API are now hidden from the generated documentation.

5.5.1

[5.5.1] - 2019-01-17

Fixed:

• Fixed several documentation comments that had the wrong parameter names. There are no other changes in this release; it's only to correct the documentation.

5.5.0

[5.5.0] - 2019-01-17

Added:

• It is now possible to use Consul or DynamoDB as a persistent feature store, similar to the existing Redis integration. See the LaunchDarkly::Integrations::Consul and LaunchDarkly::Integrations::DynamoDB modules, and the reference guide Using a persistent feature store.
• There is now a LaunchDarkly::Integrations::Redis module, which is the preferred method for creating a Redis feature store.
• All of the database feature stores now support local caching not only for individual feature flag queries, but also for all_flags_state.
• The Config property data_source is the new name for update_processor and update_processor_factory.

Changed:

• The implementation of the SSE protocol for streaming has been moved into a separate gem, ld-eventsource. This has no effect on streaming functionality.

Fixed:

• Added or corrected a large number of documentation comments. All API classes and methods are now documented, and internal implementation details have been hidden from the documentation. You can view the latest documentation on RubyDoc.
• Fixed a problem in the Redis feature store that would only happen under unlikely circumstances: trying to evaluate a flag when the LaunchDarkly client had not yet been fully initialized and the store did not yet have data in it, and then trying again when the client was still not ready but the store did have data (presumably put there by another process). Previously, the second attempt would fail.
• In polling mode, the SDK did not correctly handle non-ASCII Unicode characters in feature flag data. (#90)

Deprecated:

• RedisFeatureStore.new. This implementation class may be changed or moved in the future; use LaunchDarkly::Integrations::Redis::new_feature_store.
• Config.update_processor and Config.update_processor_factory; use Config.data_source.

5.4.3

[5.4.3] - 2019-01-11

Changed:

• The SDK is now compatible with net-http-persistent 3.x. (Thanks, CodingAnarchy!)

5.4.2

[5.4.2] - 2019-01-04

Fixed:

• Fixed overly specific dependency versions of concurrent-ruby and semantic. (#115)
• Removed obsolete dependencies on hashdiff and thread_safe.

5.4.1

Note, version 5.4.0 was broken and has been removed.

[5.4.1] - 2018-11-05

Added:

• It is now possible to inject feature flags into the client from local JSON or YAML files, replacing the normal LaunchDarkly connection. This would typically be for testing purposes. See file_data_source.rb.

Fixed:

• When shutting down an LDClient, if in polling mode, the client was using Thread.raise to make the polling thread stop sleeping. Thread.raise can cause unpredictable behavior in a worker thread, so it is no longer used.
• Fixed a LoadError in file_data_source.rb, which was added in 5.4.0. (Thanks, kbarrette!)

5.3.0

[5.3.0] - 2018-10-24

Added:

• The all_flags_state method now accepts a new option, details_only_for_tracked_flags, which reduces the size of the JSON representation of the flag state by omitting some metadata. Specifically, it omits any data that is normally used for generating detailed evaluation events if a flag does not have event tracking or debugging turned on.

Fixed:

• JSON data from all_flags_state is now slightly smaller even if you do not use the new option described above, because it omits the flag property for event tracking unless that property is true.

5.2.0

[5.2.0] - 2018-08-29

Added:

• The new LDClient method variation_detail allows you to evaluate a feature flag (using the same parameters as you would for variation) and receive more information about how the value was calculated. This information is returned in an EvaluationDetail object, which contains both the result value and a "reason" object which will tell you, for instance, if the user was individually targeted for the flag or was matched by one of the flag's rules, or if the flag returned the default value due to an error.

Fixed:

• Evaluating a prerequisite feature flag did not produce an analytics event if the prerequisite flag was off.