Added support for attachment link buttons (type of attachment action) which opens a provided URL if clicked, allowing you to add up to 5 buttons to each attachment. See for more.
Example:
await client.SendAsync(b => b
.WithText("Look at my buttons")
.WithAttachment(a => a
.WithTitle("Now with actions")
.WithText("...which are pretty neat")
.WithLinkButtonAction("Click me", "http://google.com", ActionStyle.Primary)
.WithLinkButtonAction("Don't click me", "http://bing.com", ActionStyle.Danger)));
1.0.23
First documented release with initial features provided by the Slack Webhook API
