1.3.0

• Fixed issue with a Subscription being closed and rapidly reopened on the same streamId and channel.
• Add ThreadingMode.INVOKER to the driver so no threads are started and the media driver can be invoked by the client for its duty cycle. Example in the Archiver.
• Added system property that allows TCP_MODE to be enabled on CUBIC congestion control.
• Throughput and latency improvements on the receiver side when interacting with NIO DatagramChannels.
• Add Header.context() member which contains the Image for use in subscriber callbacks.
• Allow for client thread and lock to be elided when used in a low resource environment where the client will invoke the client duty cycle. Example can be found in the Archiver.
• Notify that a new Image is available before it is added to the Subscription so setup actions can be taken.
• Fix Ping samples for messages larger than MTU.
• Numerous improvements to the performance and GC overhead of creating and releasing connections.
• Add Image.joiningPosition().
• Avoid use of std::function for performance in C++.
• Add ExclusivePublication support to C++.
• Close file descriptor after mapping an existing file in C++. Issue #339
• Upgrade to Checkstyle 7.7.
• Upgrade to Agrona 0.9.6.

Java binaries can be found here...

1.2.5

• Make ExclusiveBufferClaim.flags() consistent with Header.flags().
• Move responsibility for closing channel endpoints on shutdown from the driver-conductor to sender and receiver as appropriate.
• Don't wait for Receiver to close a channel endpoint within the driver conductor. Issue #338.
• Remove use of RandomAccessFile so that only FileChannels are used to reference files.
• Improve efficiency of startup.
• Upgrade to Agrona 0.9.5.
• Upgrade to Mockito 2.7.22.
• Upgrade to Gradle 3.5.

Java binaries can be found here...

1.2.4

• Update CnC file to accommodate counters with labels up to 380 bytes. This bumps the CNC_VERSION so all clients and the driver on the same machine need to be upgraded at the same time.
• Truncate log buffers when a stream is closed so space can be reclaimed as soon as possible.
• Add Image.controlledPeek to peek ahead into a stream without advancing the subscriber position.
• Improve the efficiency of Aeron startup and shutdown.
• Back pressure a Publication as soon as its timeout is triggered due to not receiving status messages so that low throughput connections signal NOT_CONNECTED sooner. Also applies to IPC when all Subscriptions are closed.
• Add per Subscription callbacks for notification of Image availability and unavailability.
• Make media driver conductor more efficient so it can deal with a higher number of connected streams.
• Add the ability to create an ExclusivePublication with initial state set so it can replay existing archived data.
• Add ExclusivePublication for higher throughput single threaded publisher.
• Allow the Aeron client to start before the media driver when an existing CnC file is present.
• Clean up Aeron.Context if an error occurs when trying to establish a connection with the media driver.
• Add Aeron.nextCorrelationId().
• Avoid a recursive close in the Aeron Java client when a timeout occurs.
• Upgrade to sevntu-checks 1.23.1.
• Upgrade to Checkstyle 7.6.1.
• Upgrade to Byte Buddy 1.6.12.
• Upgrade to Mockito 2.7.21.
• Upgrade to Agrona 0.9.4.

Java binaries can be found here...

1.2.3

• Fix bug with managing the lifetime of Subscriptions to IPC Publications when a publication is added and removed multiple times in quick succession without break on the same stream id.
• Improvements to C++ client for building on Windows.

Java binaries can be found here...

1.2.2

• Fix bug with IPC Subscriptions being linked multiple times when Publication added from different clients that match.
• Transition IPC Publications to inactive as soon as the Publication reference count reaches zero.

Java binaries can be found here...

1.2.1

• Fix bug with IPC Publications going NOT_CONNECTED with very slow subscribers that are still connected.
• Grow fragment assembly buffer using the golden ratio rather than doubling on a Subscription.
• Improve Javadoc for Multi-Destination-Cast params.
• Upgrade to SBE 1.6.0.

Java binaries can be found here...

1.2.0

• Multi-Destination-Cast for multicast like semantics over multiple UDP unicast streams.
• Linger networked Publications that have spies until the spies have caught up with the sender position.
• Manage Image availability and Subscriptions for IPC in the same way as for network streams.
• Performance improvements from fixing a few false sharing issues.
• Fix network frame logging with debugging agent.
• Fix intermittent system tests on Windows.
• Make the Java client more robust to misuse.
• Windows C++ compilation fixes.
• Be more strict with validating client parameters before mutating state.
• Ability to set the MTU length on individual UDP streams.
• Upgrade to Checkstyle 7.5.1.
• Upgrade to Byte Buddy 1.6.9.
• Upgrade to Mockito 2.7.9.
• Upgrade to Agrona 0.9.3.

Java binaries can be found here...

1.1.0

• Numerous small performance improvements.
• Fix bug with publications going NOT_CONNECTED because nano time was used rather than the epoch clock.
• Ability to subscribe to a stream as reliable=false which enables gaps being filled without invoking the reliable recovery process.
• Loss Reporting by stream for monitoring.
• OSI layer 4 congestion control/avoidance service which can optionally be enabled on congested networks.
• Support for running 32-bit C++ clients on ARM.
• Rework of loss detection to make it more efficient.
• Ability to measure RTT added to the network protocol.
• Upgrade to Mockito 2.6.8.
• Upgrade to Checkstyle 7.4.
• Upgrade to sevntu-checks 1.23.0.
• Upgrade to ByteBuddy 1.6.5.
• Upgrade to Agrona 0.9.2.
• Upgrade to Gradle 3.3.

Java binaries can be found here...

v1.0.5

• Use BusySpinIdleStrategy for the conductor in the LowLatencyMediaDriver to reduce some latency outliers at the expense of more CPU usage.
• Fix some cases of false sharing on key data structures.
• Remove OSGi plugin from aeron-agent to fix issue that prevented debug logging due to premain not in manifest.
• Allow driver and examples to be shutdown with SIGTERM as well as SIGINT.
• New flow control strategies for minimum and preferred receivers on multicast as additions to existing max strategy.
• Add receiver ID to status messages to enable additional flow control strategies such as preferred receiver.
• Remove deprecated channel URI format support.
• Added warm up cycle to C++ ping pong example.
• Apply const where possible in C++ client code.
• Fix checks against max message and max payload length in C++ publication claim.
• Upgrade to Mockito 2.2.29.
• Upgrade to Checkstyle 7.3.
• Upgrade to sevntu-checks 1.22.0.
• Upgrade to ByteBuddy 1.5.9.
• Upgrade to Agrona 0.9.1.
• Upgrade to Gradle 3.2.1.

Java binaries can be found here...

v1.0.4

• Detect Aeron Client use after close operations and improve locking strategy.
• Park the client conductor when waiting on the driver response.
• Fix concurrency issues in system tests.
• Added OSGi Gradle plugin.
• Upgrade to Mockito 2.2.16.
• Upgrade to sevntu-checks 1.21.1.
• Upgrade to ByteBuddy 1.5.5.
• Upgrade to Agrona 0.9.0.
• Upgrade to Gradle 3.2.

Binaries can be found here...