v2.8.0

• Run the initialize logic on the background thread so that the SQLite database operations do not delay the main thread.
• Add support for Amazon Advertising ID (use in place of Google Advertising ID on Amazon devices). Thanks to @jcomo for the pull request.

v2.7.2

• Add documentation for SDK functions. You can take a look here. A link has also been added to the Readme.
• Fix bug where fetching the user's location on select devices throws a SecurityException, causing a crash.

v2.7.1

• RevenueProperties is a confusing name and should actually be eventProperties. Deprecating Revenue.setRevenueProperties and replacing it with Revenue.setEventProperties, and clarified in Readme.

v2.7.0

• Add support setting groups for users and events. See Readme for more information.
• Add helper method getSessionId to expose the current sessionId value.
• Add logRevenueV2 and new Revenue class to support logging revenue events with properties, and revenue type. See Readme for more info.
• Fix crash when trying to enableForegroundTracking with the PinnedAmplitudeClient. AmplitudeClient methods should be using this instead of static instance variable.

v2.6.0

• Update to OKHttp v3.0.1.
• Add support for prepend user property operation. This allows you to insert value(s) at the front of a list. See Readme for more details.
• Fix bug where merging events for upload causes array index out of bounds exception.
• Migrate shared preferences (userId and event meta data) to Sqlite db to support apps with multiple processes.

v2.5.1 [DEPRECATED]

• Major bug fix: fix where updateServer sets the wrong batchLimit when limit is false.

v2.5.0

• Add ability to clear all user properties.
• Check that SDK is initialized when user calls enableForegroundTracking, identify, setUserProperties

v2.4.0

• Add support for append user property operation.

v2.3.0

• Log if Google Play Services is enabled for the application.

v2.2.0

Lots of little fixes and updates:

• Removed all references to Apache HTTPClient to support Android M.
• Handle exceptions when fetching last known location from LocationManager.
• Add ability to set custom deviceId (warning: only use if you know what you are doing - see readme).
• Handle exception when cloning JSON object.
• Maintain only one instance of OKHttpClient.
• Add AmplitudeLog helper class that supports enabling and disabling of logging as well as setting of the log level.
• Fix bug where event and identify queues are not truncated if eventMaxCount is less than eventRemoveBatchSize.