Release 4.0.0

• Minimum Java version now 11
• Issue #323 - WorkerPool and WorkProcessor have been removed, no more Disruptor::handleEventsWithWorkerPool
• Disruptor constructors using Executor have been removed. Use ThreadFactory instead.
• Rolled up event handling extension interfaces on to EventHandler:
  • BatchStartAware
  • LifecycleAware
  • SequenceReportingEventHandler
• FatalExceptionHandler and IgnoreExceptionHandler now use the JDK 9 Platform Logging API, i.e. System.Logger
• Add rewind batch feature to the BatchEventProcessor
• Add a maximum batch size argument to BatchEventProcessor
  • EventHandler::onBatchStart now gets both the batchSize as well as queueDepth (previously it had batchSize which reported queue depth)
• Added documentation to EventPoller
• Util::log2 throws if passed a non-positive argument
• Deprecations
  • Deprecated ThreadHints.onSpinWait()
  • Deprecated Disruptor.handleExceptionsWith() - this had been javadoc deprecated since 2015 but not in the code
  • Removed previously deprecated methods
    • Ringbuffer.resetTo()
    • ConsumerRepository.getLastSequenceInChain()

Release 4.0.0 Release Candidate 1

• Breaking Changes
  • Minimum Java version now 11
  • Issue #323 - WorkerPool and WorkProcessor have been removed, no more Disruptor::handleEventsWithWorkerPool
  • Disruptor constructors using Executor have been removed. Use ThreadFactory instead.
  • Rolled up event handling extension interfaces on to EventHandler:
    • BatchStartAware
    • LifecycleAware
    • SequenceReportingEventHandler
• Deprecated ThreadHints.onSpinWait()
• FatalExceptionHandler and IgnoreExceptionHandler now use the JDK 9 Platform Logging API, i.e. System.Logger
• Add rewind batch feature to the BatchEventProcessor
• Added documentation to EventPoller

Release 3.4.4

• Lazy-loading of Logger instances - See #370 & #376

Release 3.4.3

• Add Automatic-Module-Name to MANIFEST.MF (#279)

Release 3.4.2

• Fix for race condition on restart of BatchEventProcessor with 3 or more threads.

Release 3.3.11

• Fix for race condition on restart of BatchEventProcessor with 3 or more threads.

Release 3.4.1

• Fix race between run() and halt() on BatchEventProcessor.

Release 3.3.10

• Fix race between run() and halt() on BatchEventProcessor.

Release 3.4.0

• Drop support for JDK6, support JDK7 and above only.
• Add ThreadHints.onSpinWait to all busy spins within Disruptor.
• Increase default sleep time for LockSupport.parkNanos to prevent busy spinning.

Release 3.3.9

• Changle SleepingWaitStrategy to use a parkNanos(100).