ReleaseNotes.md

SignalR Release Notes

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

• 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

• 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)