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SignalR Release Notes

1.1.0

Features

  • Add tracing to Service Bus message bus (#1912)
  • Add more scaleout performance counters (#1833)
  • Ensure fairness in scale-out message delivery using arrival time stamp for sorting (#1807)
  • Support generating an install script (#1793)

Bugs Fixed

  • [LP] - ConcurrentCalls causing leak on server side (#1993)
  • 'r' is undefined (#1975)
  • Duplicates messages received when using 2 machines (#1973)
  • Memory leak in connection tracking when using scaleout (#1953)
  • Missing messages when sending to groups (#1948)
  • ServiceBusMessageBus should delete subscriptions when the application shuts down ungracefully (#1939)
  • Only unwrap one level of exceptions when returning hub errors to client (#1919)
  • in SqlScaleoutConfiguration it should throw when TableCount < 1 (#1888)
  • Refactor SQL message bus to use events instead of delegate passing (#1879)
  • LP/SSE hang when using a reasonable value for ServicePoint DefaultConnectionLimit (#1874)
  • Unobserved ODE after manually stopping a connection on the .NET client (#1848)
  • Overwhelming the queue can cause issues sending to other clients (#1847)
  • The WebSocket instance cannot be used for communication because it has been transitioned into an invalid state. (#1846)
  • Validate ServiceBusScaleoutConfiguration members (#1806)
  • JS client webSockets /serverSendEvents /foreverFrame don't append /reconnect but append /poll in url when reconnect, however functional still work (#1794)
  • Update RedisMessageBus to use latest version of Booksleeve (#1788)
  • LongPollingTransport threw ObjectDisposedException in AbortResetEvent.Set() (#1691)
  • Redis message bus can result in missed messages due to messages received out of order from backplane (#1676)

1.1.0beta

General Changes

  • Performance improvements in throughput and memory usage.
  • New scaleout provider infrastructure and providers for Redis, SqlServer and Azure Service Bus.

Known Issues

  • When the backplane goes offline (redis, sql, service bus) you may miss messages.

Features

  • Add overload to MapHubs and MapConnection to allow adding OWIN middleware (#1800)
  • Removed Connection.Disconnect() (#1798)
  • Force <= IE8 to use LongPolling (#1764)
  • Support common scale-out message bus semantics in an abstract base class (#1712)
  • Support SQL Server scale-out message bus (#1711)
  • Make SQL message bus light up with query notifications only if service broker is available (#1662)
  • Allow specifiying the JsonSerializer in the .NET Client (#1373)
  • Allow specifying headers in the .NET client (#1362)
  • Allow specifying client certificates in the .NET Client (#1303)
  • Support client side keep alive for the .NET client (#741)
  • Add tracing to the .NET client (#135)
  • Add trace level to the .NET client (#1746)

Bugs Fixed

  • ConnectDisconnect test failed due to a leak on w3wp.exe (#1801)
  • Update error messages based on customer feedback (#1734)
  • Hub script isn't minified (#1710)
  • Specifying the hubs url for a connection url should fail (#1707)
  • JS client webSockets and SSE transports only try request one time to connect during reconnect (#1684)
  • PerformanceCounter.RemoveInstance throws on mono (#1678)
  • in HubContext Clients.Client(null).foo() doesn't throw (#1660)
  • .NET client: Calling Stop before connecting fails (#1650)
  • [WebSockets] AbortStopDisconnect scenario failing: System.InvalidOperationException: Incorrect message type (#1607)
  • .NET client: OnError can be raised when stopping SSE connection (#1600)
  • Get rid of all synchronous reads/writes on the client (#1536)
  • Group tokens are not verified against the current connection ID on reconnect (#1506)
  • Unhandled exceptions within service bus backplane (#1504)
  • Optimize hub method invocation (#1486)
  • Extending javascript array potentially breaks other code (#1392)
  • IE9 object serialization on persistant connection received (#1388)
  • Hub Clients.Client(null).foo() should throw same as PersistentConnection Connection.Send(null, message) (#1265)
  • Multiple connections don't work on the same page in some cases (#1243)
  • Client infinitely receive same messages from server when publish message with same Id (#948)
  • jQuery $.ajaxSetup issue (#947)
  • SqlServer - Use real schema instead of deprecated "dbo" (#943)
  • SignalR Redis doesn't reconnect to Redis server after stop and re-start Redis server (#916)
  • Scaleout Bus mapping grows infinitely (#723)
  • Several browsers show infinite loading status (IE8) (#215)

1.0.1

Bugs Fixed

  • Connection Id not read properly when additional query string parameters are added (#1556)
  • WebSocket leaks if Close throws an exception (#1554)
  • CancellationTokenSource has been disposed (#1549)
  • Regression: State doesn't work when accessed as dictionary without casting (#1545)
  • Don't catch exceptions thrown from user-defined OnReceived handlers on the JS client (#1530)
  • Calling connection.stop() with the serverSentEvent transport on Opera raises a TypeError. (#1519)
  • Doc summary for BuildRejoiningGroups is wrong (#1505)
  • When converting JRaw to concrete type use default serialization settings that container a max depth (#1484)
  • AV in ForeverTransport under stress (#1479)
  • JS client version property is incorrect (#1476)
  • Throw the "Not a websocket request" exception synchronously (#1440)
  • JS client with jQuery 1.9.0 raises connection error for all sends on persistent connection API (#1437)
  • Groups.Add.Wait fails, http.sys logs shows "Connection_Dropped" with no apparent reason. (#1435)
  • .NET client OnError is raised when calling connection.Stop and using WebSocket transport (#1397)
  • Fuzz test the cursor parsing logic. (#1307)
  • Improve the error message "Incompatible protocol version". (#1176)
  • PerformanceCounterCategory.Exists hangs (#1158)
  • SignalR .NET Client HubConnection looping between Reconnecting and Connected (#1121)

1.0

Breaking Changes

  • Disable CORS by default (#1306)
var config = new HubConfiguration 
{ 
    EnableCrossDomain = true
} 
RouteTable.Routes.MapHubs(config);
  • Don't return error text by default for hub errors (#923)
    • This means that exception messages are turned off by default
var config = new HubConfiguration 
{ 
    EnableDetailedErrors = true
} 

RouteTable.Routes.MapHubs(config);
  • EnableAutoRejoiningGroups has been removed from HubPipeline. This feature is turned on by default. The groups payload is signed to the client cannot spoof groups anymore.

Bugs Fixed

  • Send nosniff header for all SignalR responses (#1450)

  • Hub state and args are placed into a dictionary directly from user input from the URL (#1449)

    • JSON.NET 20 is the limit of recursion
    • 4096 KB is maxium size JSON payload

  • HubDispatcher allows duplicate hub names in connectionData (#1448)

    • If you have duplicate HubNames in your HubConnection, you will get an exception Duplicate hub names found

  • ForeverFrame transport should validate frameId passed through the URL (#1446)

  • Route matching for the Owin hub dispatcher handler is too agressive (#1445)

  • JSONP callback method should be validated as valid JS identifier (#1444)

  • Hub method discovery includes methods it shouldn't (#1443)

  • Add CSRF protection for SignalR requests (#1413)

  • AV at Microsoft.Owin.Host.SystemWeb.OwinCallContext.StartOnce (#1402)

  • WebSocket leak HttpContext even though DefaultWebSocketHandler is closed (#1387)

  • Bug with same origin check behind reverse proxies/load balancers etc. (#1363)

  • Add summary in public AuthorizeAttribute class (#1353)

  • Infer hubs path from the url (#1346)

  • Sign the groups (#1328)

  • End the request, not connection as soon as cancellation token trips. (#1327)

  • Prefix for group from PersistentConnectionContext is not right (#1326)

  • Throw in ASP.NET 4 if the purpose isn't connection id and groups. (#1325)

  • Prevent connections from subscribing to a group that's actually a valid connection ID or Hub name (#1320)

  • Ensure that we don't allow clients to provide duplicate signals in cursors (#1312)

  • Add Authorize method to PersistentConnection. (#1308)

    • Added Authorize and AuthorizeRequest method to PersistentConnection.
    • This is the place in the pipeline to authorize requests. If a request fails authorization then a 403 is returned.

  • Consider signing the connection id (#1305)

  • Change LongPollingTransport.Send to be non-virtual (#1292)

  • Change TopicMessageBus use of array to IList (#1291)

  • Change Subscription.PerformWork to take a IList instead of List (#1290)

  • Change Linktionary to IndexedDictionary (#1289)

  • Investigate changing all uses of IEnumerable in the API to IList (#1288)

  • Change IHubIncomingInvokerContext.Args to IList (#1287)

  • Change DefaultJavaScriptProxyGenerator.GetDescriptorName to non-vritual (#1286)

  • Change Subscription.Data to Received in .NET client (#1285)

  • Change .NET Client uses of arrays to IList (#1284)

  • Change IConnection.Groups to IList (#1282)

  • Change ConnectionMessage.ExcludedSignals to IList (#1278)

  • Add overloads for methods with params array on hot paths (#1277)

  • Client webSockts and SSE transports, after reconnected, Disconnect Command from server causes the reconnected connection to disconnect (#1273)

  • Loading Resources in Windows Ph8/Windows Store applications (#1232)

  • Long Polling leaking requests sometimes (#1164)

  • Signalr.exe to generate hub proxy only works for webapplication projects

  • jquery.signalr.1.0.0.js file has the version specified as 1.0.0.rc1. The version is actually 1.0.0

  • ScaleOut with Redis/Service Bus

    • Scale Out with SignalR using ServiceBus or Redis
    • Scaleout using Azure Service Bus or Redis is still under development. If you are using 1.0.0-RC2 versions of the ScaleOut packages then please upgrade to 1.0.0-RC3 if you want to use SignalR 1.0.0

    • Known Issues

    • JS client with jQuery 1.9.1 / 1.9.0 raises connection error for all sends on persistent connection API (#1437

    1.0rc2

    Notable Commits

    • Removed checks for the GAC and dynamic assemblies. (2cb4491fc6)
    • Modified KeepAlive to be an integer instead of a TimeSpan. (a27f41f327)
    • Added total topics performance counter. (ece78b804c)
    • Changing default message size to 1000. (88f7134b8e)
    • Exposed GetHttpContext extension method from SystemWeb assembly. (6ea4b20e87)
    • Remove ServerVariables from IRequest. (7f4969c6a8)
    • Fix some issues with SignalR's owin request impl on mono. (b5c05bc6bf)

    Features

    • Added support for windows phone 8.
    • Add websocket support for the .NET client. (#985)
    • Ability to prevent auto generated Javascript proxies. (#978)
    • Remove the Mode parameter from AuthorizeAttribute. (#956)

    Breaking Changes

    • Moved several types into different namespaces. (524e606e7f)
    • MapHubs and MapConnection no longer take route parameters. They are just prefixes. (b7b1371a2a)

    Bugs Fixed

    • Validate that connection IDs are in correct format in PersistentConnection on all requests. (#1298)
    • Remove "Async" from all member names. (#1276)
    • WebSocket transport: Unclean disconnects are being treated as clean disconnects. (#1254)
    • JS client longPolling can't reconnect when server process restarts except after the first rebuild. (#1246)
    • Registry exception. (#1244)
    • JS Client: LongPolling OnConnected message doesn't make it to client. (#1241)
    • In JS client, Group names are not encoded in the querystring when a transport reconnects. (#1233)
    • SL5 client is not working. it fails to load json.net. (#1223)
    • Interval between keep alive missed and notifying transport seems to small. (#1211)
    • "+" sign in a string gets transformed to a space. (#1194)
    • LP: Clients cannot receive messages on client if message is sent right after start. (#1185)
    • Fix issues with growing number of dead connections consuming too much memory. (#1177)
    • JS Client: Base events (reconnecting, connected, received etc.) are not unique to connection objects. (#1173)
    • PerformanceCounterCategory.Exists hangs. (#1158)
    • JS client function isCrossDomain returns true for same website /host url. (#1156)
    • Waiting on multiple commands in OnConnectedAsync causes a TaskCanceledException in ForeverTransports (SSE, FF, WS). (#1155)
    • JS client can't receive messages after reconnected for network disconnect and re-connected. (#1144)
    • .NET client fails auto-negotiation fallback. (#1125)
    • Deadlock in .NET client websocket stop logic. (#1120)
    • Remove MozWebSocket check in javascript websocket transport. (#1119)
    • OutOfMemoryException after sending a lot of huge messages. (#1114)
    • Don't create topics when publishing. (#1071)
    • Unseal AuthorizeAttribute. (#1050)
    • Topic objects remain in Active state and never clean up after all clients disconnected. (#1001)
    • Remove the Mode parameter from AuthorizeAttribute. (#956)
    • on IE10/9 foreverFrame transport connection can't receive message after network disconnect time and network re-connect. (#820)

    1.0rc1

    • Drain pending writes before ending the request to avoid AVs. (010c4f6750)
    • Bubble canceled tasks via hubs back to the client. (c1e8e6834b)
    • Expose Request to the HubCallerContext. (5ec61eb37c)
    • Removed Hosting.Common altogether. (acebe530a4)
    • Fixed deadlock in ForeverTransport. (11da5b71a3)
    • Drop silverlight4 package from build. (33cc5e06d9)
    • Change the default keep alive to 15 seconds. (6741075e63)
    • Server configured DisconnectTimeout is not honored by JavaScript client. (#1086)
    • RegisterHubs hangs for a while. (#1063)
    • Firefox 5 fails when stopping forever frame. (#1060)
    • Connection never disconnects if data is being sent to it. (#1046)
    • Unable to distribute to groups if transport is longpolling and HubName attribute is used. (#1039)
    • When an invalid transport is specified $.connection.hub.start() will auto negotiate. It should throw an error and stop the connection. (#1037)
    • When reconnecting, don't trigger on error for longpolling. (#1036)
    • Consider removing IRequestCookieCollection. (#1034)
    • Expose generic items bag on IRequest. (#1033)
    • The CancellationTokenSource has been disposed. (#1020)
    • MessageBusExtensions.cs disposer.Dispose() throws ObjectDisposedException. (#1005)
    • Remove dynamic support from .NET client. (#996)
    • Add Version Property in JS Library. (#994)
    • .Net Client Send() task hangs when server operation throws. (#991)
    • Remove BOM encoding from output streams. (#982)
    • Fix script escaping script files in forever frame. (#950)
    • If no messages received after connection joins group and then disconnect, the connection won't be in the group. (#938)
    • We do not escape the Message Id Parameter on the JS client. (#937)
    • Joining group with hash in the name fails (#935)
    • Optimized message format (#887)
    • IE throws 'Access denied' on foreverFrame (#873)
    • Native heap corruption while flushing from ForeverFrameTransport.KeepAlive (#854)
    • First chance exception when webSockets connection closes. (#821)
    • Use OWIN host exclusivly. (9f9a18089f)
    • WebSocket closes ungracefully with no error when trying to call hub method with wrong name or parameters. (#440)

    0.5.3 (Official Release)

    • Improve logging for hubs in js client. (#505)
    • Can't pass querystring when creating HubConnection. (#581)
    • Improve errors for .NET client. (#515)
    • Make http streaming work with Win8 client. (a61ee958ed)
    • Fix bugs related to forever loading indicators on various browsers (#215), (#383), (#491)
    • Force shut down a client, server execution flow didn't go into IDisconnect.Disconnect () at all. (#511)
    • Transport fallback should fail if onFailed called and there's no good fallback. (#485)
    • Turn ReadStreamBuffering off for WP7 and Silverlight to enable SSE support. (18cb087037)
    • Connect/Disconnect events not firing in IE (#501)
    • Make dictionaries in bus case in sensitive. (5916a588f9)
    • Groups.Add within persistent connection fails under high crank load. (#388)
    • Use the HttpClient stack in silverlight. (b51a4144db)
    • Made reconnect timeout configurable on SSE transport. (6b869a4cd9)
    • Fix race condition when client sends immediately after connecting (#552)
    • Make access to the state thread safe in the .NET client. (8464514a8d)
    • Abort the request before calling close on the request in the .NET client. (50ee2b9b6c)
    • Throw if CreateProxy called after the connection is started. (89eb8e492c)
    • Fix caching negotiate response in Silverlight client (#522)
    • Serve silverlight's cross domain policy file for self hosted server. (eaec182fee)
    • Expose underlying AuthenticationSchemes property (52dbfbef12)
    • Made exception handling fixes to SSE stream reader (C# client) (7f0fd4ddc7)
    • Make event names and proxy names case insensitive. (#508)
    • Added hub events support to JavaScript client (using hubs without proxy) (97c984754f)
    • Made websocket implementation for self host on .NET 4.5. (e94d091100)
    • LongPolling broken on ASP.NET 4.5 (#496)
    • Prevented caching ajax requests on reconnect. (fbfc65371d)
    • Added consistent way to get a strongly typed representation of the connected clients (fa6d0b533e)

    0.5.2 (Official Release)

    • ForeverFrame reconnect error: null frame reference (#447)
    • Error when clicking link (IE only) (#446)
    • Fixed zombie connections issue with forever transports (7d5204e55d)
    • ForeverFrame transport does not handle embedded </script> tags properly (#413)
    • Made some modifications to js client for SSE and longpolling transports. (5d782dc3b4)
    • Duplicate connections on reconnect with SSE transport (#452)
    • Added .NET 3.5 Client (9e3a95c65f)
    • Add server variables to the IRequest abstraction (#438)
    • Forever frame slows down in IE after receiving many messages (#458)
    • Reworked connection tracking logic (8d27c97792)
    • Fix connect bug in IE6 with longpolling (7ab434c02d)
    • Optimized type conversation so we don't end up parsing JSON twice on hub calls (50cefbba42)
    • Clean up the way we use connection state in the .NET Client (#474)
    • Added an overload to Send that allows passing an object (.NET Client) (9c171bd8e7)
    • Don't parse the message ID as a long (.NET client) (#475)
    • Prevent hang on Connection.Start() (5752d6007b)
    • Stop EventSource before calling onFailed (5c7536131b)
    • Fixed issues with cross domain websockets (#461)
    • HeartBeat.MarkConnection(this) called twice per Send(..) in ForeverTransport (#333)

    0.5.1 (Official Release)

    • Windows RT client support (#171)
    • Fixed Race condition in .NET SSE transport (#341)
    • Added reconnect support for Websocket transport (#395)
    • Implemented clean disconnect support on browser close (#396)
    • Added async flush support for ASP.NET 4.5 (#402)
    • Fixed websockets in WinJS client (407)
    • Added connection state and new state changed event to js and .NET client (431)
    • Check connection state before retrying in js client (af2ae94133)
    • Turn keep alive on by default (47e17b68ce)
    • Auto detect cross domain (0a5c62438b)
    • Changed IResponse.Write and End to take ArraySegment instead of string (f521fd2e6a)
    • Added hubify.exe to generate the hubs file at build time (e7672ebb60)
    • Built WebSockets transport into the core.

    v0.5.0 (Official Release)

    • Server Send Events connections not closing (#369)
    • Allow HubConnection to specify hub url (#368)
    • Added current IPrincipal to IRequest. (e381ef1cb6)
    • Remove implicit Send overload from PersistentConnection. (44ff03aafa)
    • Regression: Method overloads no longer work in hubs because of caching. (#362)

    v0.5.0 RC (Stable Prerelease)

    • Performance: Only register for disconnect for chunked requests on self host. (#352)
    • Provide way to override default resolver in ASP.NET other than through routing. (#347)
    • Performance: Only subscribe to hubs that have method subscriptions (#346)
    • Don't create all hub instances on connect/reconnect/disconnect (#345)
    • Hub names are case sensitive. (#344)
    • Crappy error message when failing to create a hub (#343)
    • Performance: InProcessMessageBus.RemoveExpiredEntries takes N+1 locks to remove N entries (#335)
    • Performance: Use DateTime.UtcNow instead of DateTime.Now. (7edef25411)
    • Fixed incompatibility with jQuery.Validate (#328, #145).
    • .NET Client Fixed race condition in Stop() after connection fails. (cd87d40583)
    • ReflectedMethodDescriptor::TryGetMethod Executable Method Caching (#351)
    • Disconnect is broken in webfarms (#69)

    v0.5.0 (Stable Prerelease)

    Bugs Fixed

    • Missing messages in some cases (#307)
    • Exception in .NET client when fiddler attached (#304)
    • Calling Send multiple times fails (#260)
    • Exception in .NET client SSE impl with large messages (#256)
    • Invoking Hub methods with byte[] arguments fail (#245)
    • Fixed encoding issues with self host (#244)
    • Calling Stop then Start after Start fails doesn't restart .NET client (#226)
    • Unobserved task exception on long polling transport when server is restarted during first request (#320)
    • Hubs in inner classes don't work (#204)
    • LongPolling raises IConnected.Reconnect too many times (#188)
    • Issues with large message sizes (#163)
    • Regression: Reconnect client after server restart (#24)
    • Fixed Guids in Hub method parameters (#194)
    • SelfHost Server not recognising remote disconnections (#214)
    • Removed double deserialize from .NET client. (fbb3ea615d)

    Features

    • Mono support (#58)
    • Dynamic hubs implementation (#276)
    • Improved serveral APIs to be more consistent (#20)
    • Cross domain via jsonp (#6)
    • Transports need to send "Keep Alives" (#168)
    • Add Current User Identity to SignalR.Hosting.Request (#241)
    • Added support fo Silverlight 5 Client (#264)