• Major new features
  • Revamped JournaledGrain for event sourcing with support for geo-distributed log-based consistency providers.
  • Abstraction of Grain Services with fixed-placed per-silo application components with their workload partitioned via cluster consistency ring.
  • Support for heterogeneous silos with non-uniform distribution of available grain classes.
  • Cluster membership provider for Service Fabric.
• Improvements
  • IL-based fallback serializer #2162
  • IncomingMessageAcceptor sockets change from APM to EAP #2275
  • Show clearer error when ADO.NET provider fails to init #2303, #2306
  • In client, when a gateway connection close reroute not yet sent message to another gateway #2298
  • MySQL Script: Minor syntax tweak to support previous server versions #2342
  • Azure Queue provider message visibility config #2401
  • Propagate exceptions during message body deserialization #2364
  • Check IAddressable before DeepCopy #2383
  • Modified stream types to not use fallback serializer and allow external #2330
  • Add "Custom/" prefix for NewRelic metrics #2453
  • Ignore named EventWaitHandle when not available in platform #2462
  • Heterogenous silos support #2443
  • Update to Consul 0.7.0.3 nuget package, because of breaking change in Consul API. #2498
  • Grain Services by @jamescarter-le #2531
  • Expose IMembershipOracle & related interfaces #2557
  • Trigger registration of clients connected to the gateways in the directory when a silo is dead #2587
  • Log Consistency Providers #1854
  • In XML config, if SystemStoreType set to Custom but no ReminderTableAssembly are specified, assume that ReminderServiceProviderType is set to Disabled #2589
  • In config XML, when SystemStoreType is set to MembershipTableGrain, set ReminderServiceType to ReminderTableGrain #2590
  • Service Fabric cluster membership providers #2542
  • Adds optional native JSON support to MySQL #2288
  • Azure table storage throws InconsistentStateException #2630
  • Allow serializers to have multiple [Serializer(...)] attributes #2611
  • Removed GrainStateStorageBridge from GrainCreator to allow better control of the IStorage used when using non-silo unit tests. #2243
  • Failsafe Exception serialization #2633
  • Added a data adapter to azure queue stream provider #2658
  • Client cluster disconnection #2628
• Performance
  • Several major performance improvements: #2220, #2221, #2170, #2218, #2312, #2524, #2510, #2481, #2579
  • Replace CallContext.LogicalSetData with AsyncLocal #2200
  • Release BinaryTokenStreamWriter buffers after use in more cases. #2326
• Bug fixes
  • Empty deployment Id in Azure #2230
  • Remove zero length check in Protobuf serializer #2251
  • Make PreferLocalPlacement activate in other silos when shutting down #2276
  • Reset GrainClient.ClientInvokeCallback when uninitializing GrainClient #2299
  • Fix ObjectDisposedException in networking layer #2302
  • Reset client gateway reciever buffer on socket reset. #2316
  • Removed calling Trace.Close() from TelemetryConsumer.Close() #2396
  • Removes deadlocking and corrupted hashing in SQL storage provider #2395
  • Fix #2358: Invoke interceptor broken for generic grains #2502
  • Only a hard coded set of statistics were going to telemetry consumers. Now all non-string statistics are tracked. #2513
  • Fix invocation interception for grain extensions #2514
  • Fix type assertion in AdaptiveDirectoryCacheMaintainer #2525
  • MembershipTableFactory should call InitializeMembershipTable on membership table. #2537
  • CodeGen: fix check on parameters to generic types with serializers #2575
  • EventHubQueueCache failing to write checkpoints on purge #2613
  • Fix code copy-paste errors discovered by Coverity #2639
  • GrainServices are now Started by the Silo on Startup #2642