NewYour coding agent can read the release notes before it upgrades.Set up the MCP server →
NuGet · #2137 most downloaded on NuGet
A comprehensive Slack API client for .NET
Last release 1 months ago
01 Sep 2026
Release timing varies
gaps range from 2 weeks to 5 months
Rarely documented
notes for 11 of the last 60 stable releases
Nothing withdrawn
no release was ever pulled
9 years old
98 releases · first in 2017
More robust connection handling for socket mode - fixes an issue where socket mode could silently stop working after connections failed.
ISlackSocketModeClient and ICoreSocketModeClient:
IAsyncDisposable.DisconnectAsync() method.Disconnect() marked as obsolete.Added RichTextAttachmentMention element.
Thankyou to @AlexanderMakarov124 for this release 🌟
One column per quarter.
Added UseSocketMode to config in AddSlackNet callback and deprecated it inside UseSlackNet .
UseSocketMode to config in AddSlackNet callback and deprecated it inside UseSlackNet.Removed dependency on Microsoft.Bcl.AsyncInterfaces on .NET 8.
Microsoft.Bcl.AsyncInterfaces on .NET 8.loadingMessages parameter to AssistantThreadsApi.SetStatus.Thankyou to @verdie-g for his help with this release 👍
Added FeedbackButtonsAction and IconButtonAction types.
FeedbackButtonsAction and IconButtonAction types.Changed Attachment.IsAppUnfurl to a nullable bool to align with other bool properties.
Attachment.IsAppUnfurl to a nullable bool to align with other bool properties.Added StartStream , AppendStream , and StopStream methods to ChatApi .
StartStream, AppendStream, and StopStream methods to ChatApi.Info method to AssistantSearchApi.ToolingApi with RotateToken method.EntityApi with PresentDetails method.EntityDetailsRequested event.ChatApi.Unfurl and Chat.PostMessage methods.Remaining methods in ListItemsApi
ListApiListAccessApiListDownloadApiListItemsApiContextActionsBlock and TableBlock block types.The ListItemsResponse class has been moved from the SlackNet namespace to the SlackNet.WebApi namespace to align with other response classes.
Fixed doubling up of '/' at beginning of path when RoutePrefix is empty.
RoutePrefix is empty.ErrorResponse.Info ignores properties that aren't strings, rather than throwing an exception.
ErrorResponse.Info ignores properties that aren't strings, rather than throwing an exception.Removed deprecated asUser parameter from ChatApi.Delete .
SlackExceptions thrown when Slack returns an error response.asUser parameter from ChatApi.Delete.ToDateTime and ToTimestampNumber extensions for converting between long timestamps and DateTimes.RichTextDate.Timestamp to a long and added Date wrapper property.Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Nothing published for this version
Your coding agent can read these notes before it upgrades. Set up the MCP server →