Changelog for PubNub C# SDK

Added

Added event engine implementation for subscribe and presence operation.
Added support for RetryConfiguration to configure subscribe request retry.

Fixed

Resolved the issue where an incorrect network status was emitted when no internet connection was detected.

Fixed

Fixes issue of inaccurate DateTime to TimeToken conversion in TranslateDateTimeToPubnubUnixNanoSeconds.

Fixed

Fixes issue of getting exception for custom objects in subscription and history when crypto module is configured.

Fixed

Handle unencrypted message while getting messages with crypto.

Fixed

Fixes issue of applying default serializer settings.

Modified

Changed license to PubNub Software Development Kit License.

Fixed

Fixes issue of getting error when hereNow is called with channelGroups param only.

Added	Add crypto module that allows configure SDK to encrypt and decrypt messages.
Fixed	Improved security of crypto implementation by adding enhanced AES-CBC cryptor. Fixes Newtonsoft Json vulnerability with MaxDepth and upgrade to version for non-PCL.
Modified	Add SubscribeKey validation for subscribe feature.

Fixed

Allow name param as optional in SetChannelMetadata. Removed default empty value.

Modified

Validate json string before deserialization.

Modified

Replaced ConcurrentDictionary class file with System.Collections.Concurrent package for all target frameworks except .net 3.5/4.0.
Addressed threading issue on reading ConcurrentDictionary keys.

Added	Sending files as raw byte arrays.
Modified	Added TcpKeepAlive and ConnectionLimit to improve performance.

Modified

Undeprecated GrantToken methods/properties.

Fixed	Added null check for PublishFileMessage PNStatus in SendFileOperation. Removed invalid Content-Type in ObjectsV2 request headers targeting .Net Frameworks.
Modified	Added CultureInfo.InvariantCulture to string formatting.

Fixed

Encode comma char for push related multi channels.

Modified

Added Content-Type to request header to support internal acceptance tests.
Added acceptance tests for ObjectsV2 feature.

Fixed

Add Users/Spaces support to PCL versions.

Fixed

Fix Timer reference conflict in net6.0.

Fixed

Fixed Destroy() method when multiple Pubnub instances were in use.

Modified

Added support for Users/Spaces to GrantToken.

Modified

Introduced UserId to PNConfiguration and deprecated UUID.
Added build target framework support to .Net Framework 4.8 and .Net 6.0.

Fixed

Suppress web request aborted exception message to callback.

Fixed

Handle PNConfiguration for multi Pubnub instances.

Fixed

Refactor Telemetry Task Result to GetAwaiter().GetResult() .
Removed SILVERLIGHT, WINDOWS_PHONE preprocessor directive code.

Modified

Bumped PeterO.Cbor library version to 4.5.2.

Fixed

Capture region when exception occur during subscribe.

Modified

BREAKING CHANGES: UUID is mandatory to use SDK.

Fixed

Replaced BouncyCastle lib with System.Security.Cryptography.Algorithms.
Added try/catch for publish operation to catch exceptions.

Added

Added RevokeToken feature.

Modified

Capture region for subscribe.
Removed throw exception on atleast one PAM permission validation.

Modified	Dispose RandomNumberGenerator
Added	Added PAMv3 support - GrantToken, ParseToken, SetAuthToken.

Modified

Replaced Random class with RandomNumberGenerator for secure random bytes.
Handling of SendFile file size exceeded error message and refactored DeleteFile.
Refactored Encrypt/Decrypt methods in calling PubnubCrypto constructor with config.

Added

BREAKING CHANGE - UseRandomInitializationVector is true by default.

Modified

Refactored code to handle malformed message for reconnection policy.

Fixed	Refactored code to handle malformed message for re-subscribe.
Modified	Upgraded System.Net.Http minimum version to 4.3.4, to address security advisory CVE-2018-8292 in PubnubPCL.

Modified	Increase message count default limit for History v3 api call to 100 for single channel.
Fixed	UnsubscribeAll fix when no channels subscribed.

Modified

Added support to Objects Access Manager

Modified

Fix for SaveFileToLocal in PNDownloadFileResult
Code refactor to use file Content-Type from generate-upload-url form fields
Removed IncludeUuid and IncludeMessageType from v2/history endpoint

Modified

Fix for publish file message
Modified PNFileEventResult model class and applied internal set accessor for models.

Modified

Added files feature

Modified

Removed V1 Objects API feature. BREAKING CHANGE if you are using V1 Objects.
Added Objects Simplification API feature.

Modified

Code refactor for Signal, Publish, Fire input validation.

Modified

Added async/await support for feature method calls.
Added sort for Objects API.
Typo correction SupressLeaveEvents to SuppressLeaveEvents in PNConfiguration.

Modified

Code refactor to fix Objects and MessageActions using POST/PATCH/DELETE based requests.
Added filter support for Objects API.

Modified

Refactored code related to TMS GetToken and GetTokens
Refactored code to retrieve assembly version

Modified

Added APNS2 support for mobile push.
Added helper class to build mobile push payload.
Refactored code for PAM Signature.

Modified

Added IncludeMeta option to History.
Added new feature FetchHistory.
Added support for Message Actions.
Fix for ManageMembers and ManageMemberships when multiple include fields are provided.

Modified

Fix for MessageCounts when multiple channels are used.
Fix for PAM Signature when case-sensitive param keys are provided.
Refactored all calls that use PAM signature to use v2 format signature.
Implemented PAMv3 to all Objects.
New feature Token Management System to all Objects.

Modified

Modified Signal listener message type to PNSignalResult.
Added ObjectsAPI feature.

Modified

Async() is deprecated. Use Execute() instead.
Added Signal feature.

Modified

Refactored code to encode unsafe chars ignored by EscapeDataString in NET35/NET40

Modified

Refactored code to enforce minimum PresenceTimeout value to 20
Refactored code to handle bool type in presence state

Modified

Fix to retrieve channel name for PNPresenceEventResult when channel group is used

Modified

Fix for MessageCounts feature when multiple channels or timetokens are used with PAM enabled keys

Modified

Added MessageCounts feature to get count of messages published since a given time

Modified

Fix to capture last timetoken when subscribe request timeout/terminated

Modified

Refactored code to allow tilde char for publish GET with secret key
Minor code refactoring based on Codacy analysis

Modified

Code refactor to check null value of variables related to Reconnect usage

Modified

Code refactor based on codacy rules on unused code
Refactored code to handle WebException from HttpRequestException for NetStandard platforms

Modified

Added Grant delete permission feature
Modified SDK dependency Portable.BouncyCastle minimum version to 1.8.1.2

Modified

Refactored code for performance improvement
Refactored CleanupTelemetryData

Modified

Refactored code to publish multiple emoji characters
Refactored code to improve performance of Publish/Fire/Grant/Subscribe/Unsubscribe requests targeting .net framework

Modified

Code refactor to maintain separate instance id during multi-instancing

Modified

Added Publisher property to PNMessageResult of subscribe
Added PNException class and refactored code internally around status response

Modified

Code refactor related to MultiplexExceptionHandler
Support to Apple Watch
Code refactor related to PubnubInstance

Modified

Code refactor to ClientNetworkStatus
Proxy support for HttpClient
Code refactor to Telemetry
Reduced internal subscribe heartbeat interval for improvement in message delivery

Modified

Feature to add external query params
Internal deduping mechanism when devices cross regions (DedupOnSubscribe)
Added provision to SupressLeaveEvents
Refactored code related to network check time request for non-200 response logging

Modified

Fix for Publish Sync
Refactored Int32/Int64 Parse to TryParse
Code refactor based on Codacy

Modified

Relay server sent error status to PNStatus for Publish request
Refactored to allow colon char for publish with secret key

Modified

Relay server sent 403 status to PNStatus for PCL
Resolved array type published message for Subscribe<string>

Modified

Refactored by applying JArray.Parse for history and time json response

Modified

Refactored code by replacing Add with AddOrGet for ConcurrentDictionary
Added exception handling in TerminateReconnectTimer
Code refactor based on Codacy recommendation

Modified

Return PNStatus for non-subscribe requests timeout
Fix for PAM Grant requests to work independent of device locale
Code refactor based on Codacy recommendation

Modified

Added bool return value for AddListener and RemoveListener
ResetTimeToken option for Reconnect and bool return for Reconnect/Disconnect
Resubscribe fix when channelgroup is used

Modified

Added exception handling to AddListener and RemoveListener
Code refactor to address collection modified error in TelemetryManager
Code refactor based on Codacy recommendation

Modified

Added null check in exception catch block during network reconnect
Refactored code to send correct channel group, if exist, to PNStatus during network reconnect
Fix for delete message from history
Code refactor based on Codacy recommendation

Modified

Added exception handling for subscribe and unsubscribe internal exceptions

Modified

Added new method RemoveAllPushNotificationsFromDeviceWithPushToken
Code refactor on Reconnect
Code refactor based on Codacy recommendation

Modified

Added Telemetry feature
Fix for PNPushListProvisionsResult

Modified

Added HereNowRefresh to PNPresenceEventResult
PCL version duplicate message fix for multiple disconnect/reconnect

Modified

Refactored code to handle exception in Unsubscribe and query builder functionality
Migrated source code from VS 2015 to VS 2017
Added DeleteMessages feature

Modified

Code refactor to fix subscribe timeout and reconnect

Modified

Refactored code for application level grant
Refactored code to reuse HttpClient instance
Refactored code to handle Pubnub multi-instancing

Modified

Fix for publish with UsePOST and cipher key
Handling object array for History response

Modified

Fix for subscribe connect status callback
Message null value check for publish

Modified

Refactored to handle thread blocking

Modified

Fix to support Xamarin.Android Pubnub SDK install using Visual Studio

Modified

Added code to handle presence interval event
Code refactor per CA2000 code analysis

Modified

Refactored to address false alert log and timeout messages.

Modified

Support for ASP.NET/MVC project template projects.

Modified

Replaced HttpClient with compatible lib for .net 4.5/4.61 to support VS 2013.

Fixed

Comma encoding fix for multi channelgroups
Fixed channel remove from channelgroup

Fixed

Message fix for history when timetoken=false.

Modified

Added pn- prefix to default uuid.

Fixed

pcl profile 111 subscribe message fix.

Fixed

Timetoken fix for subscribed messages.

Modified	HttpClient to supported platforms.
Fixed	Fixed Unsubscribe issue.

Modified

Derived classes for inline coding.

Modified

Cipher typo, Origin change.

Modified

initial v4 version.

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