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Lightstreamer .NET Standard Client Changelog

6.2.0

Compatible with Lightstreamer Server since 7.4.0
May not be compatible with code developed with the previous version.
Made available on 29 Oct 2024

Changed the behavior of the listener ClientListener.onPropertyChange to be called whenever the value of a property is changed by the server or by the user through a property setter.

6.1.0

Compatible with Lightstreamer Server since 7.4.0
Compatible with code developed with the previous version.
Made available on 19 Dec 2023

Improved the client's performance to handle more server updates per second.

6.0.0

Compatible with Lightstreamer Server since 7.4.0
Not compatible with code developed with the previous version.
Made available on 10 Jul 2023

Added a second argument to the listener ClientMessageListener.onProcessed carrying the response, from the Metadata Adapter of a Lightstreamer Server, to a message sent by the Client through the method LightstreamerClient.sendMessage.

Added this check: when a Subscription is configured by means of an ItemList or a FieldList, the client checks that the number of items and fields returned by the server coincides with the number of elements in the ItemList and the FieldList, and if the numbers are different, the client deletes the subscription and fires the listener SubscriptionListener.onSubscriptionError with the error code 61.

6.0.0-beta.3

Compatible with Lightstreamer Server since 7.3.2
Not compatible with code developed with the previous version.
Made available on 22 Jun 2023

Fixed the validation check of the setter Items of the class Subscription in order to accept item names that start with a digit but contain non-digit characters too.

Updated the library haxe-concurrent to version 5.1.3.

6.0.0-beta.2

Compatible with Lightstreamer Server since 7.3.2
Not compatible with code developed with the previous version.
Made available on 5 Apr 2023

Rewritten the function to decode the percent encoded messages sent by the Server so that it has the same behavior on all the targets.

Suppressed the unsolicited console outputs produced by the library.

6.0.0-beta.1

Compatible with Lightstreamer Server since 7.3.2
Not compatible with code developed with the previous version.
Made available on 14 Mar 2023

Rewritten the whole Client SDK in the cross-platform programming language Haxe, which allows to share the core features with the other Client SDKs and at the same time to add functionalities specific to this platform.
The old library is still available here.

Now the library requires .Net Standard 2.1. Previously it used to require .Net Standard 2.0.

Improved the "delta delivery" mechanism, by adding the support for value differences, as per the extension introduced in Server version 7.3.0. Currently two "diff" formats are supported: JSON Patch and TLCP-diff.

Added the getValueAsJSONPatchIfAvailable function in the ItemUpdate class, to take advantage of the new support for JSON Patch differences, which may prove useful in some use cases. See the Docs for details.

Added the new error code 70 to the interface method ClientListener.onServerError, to report that an unusable port was configured on the server address. Previously a similar case was treated as a request syntax error.

The logging facilities have been revised in order to expose the same API on all supported platforms.
They consist of:

  • the ILogger and ILoggerProvider interfaces
  • the off-the-shelf ConsoleLoggerProvider class, which prints messages to the standard output when passed to the method LightstreamerClient.setLoggerProvider(ILoggerProvider).

The logging methods fatal(string), error(string), warn(string), info(string) and debug(string) have been removed from the ILogger interface.

The logging namespace Lightstreamer.DotNet.Logging.Log has been renamed to com.lightstreamer.log to better match the main namespace com.lightstreamer.client.

The following properties have been changed:

  • Subscription.Items
  • Subscription.ItemGroup
  • Subscription.Fields
  • Subscription.FieldSchema
  • Subscription.CommandSeconLevelFields
  • Subscription.CommandSecondLevelFieldSchema

Now they return null when the values are not available. Previously they threw an IllegalStateException.

The following obsolete properties have been removed:

  • ConnectionOptions.ConnectTimeout
  • ConnectionOptions.CurrentConnectTimeout
  • ConnectionOptions.EarlyWSOpenEnabled

The signatures of the following methods have been changed:

  • ClientListener.onListenStart and ClientListener.onListendEnd: removed the parameter of type LightstreamerClient
  • SubscriptionListener.onListenStart and SubscriptionListener.onListendEnd: removed the parameter of type Subscription

The signatures of the methods LightstreamerClient.addCookies and LightstreamerClient.getCookies have been changed. Now they take and return an object of the standard type System.Net.CookieCollection.

The inline documentation of the method LightstreamerClient.addCookies has been clarified.

The lifecycle of the property ConnectionOptions.Proxy has been changed. Now it may be called only once before creating any LightstreamerClient instance.

The lifecycle of the property LightstreamerClient.TrustManagerFactory has been changed. Now it may be called only once before creating any LightstreamerClient instance.

Previous Versions

See the full changelog.