1.3.0

• Guzzle 7 support

1.2.1

• cast field title to string (otherwise Mattermost can't decode the payload)

1.2.0

• Add a default webhook URL as a second argument of the Mattermost's constructor
• The webhook URL as a second argument of the Mattermost@send method is now optional
• Throw a MattermostException if neither the default webhook nor the Mattermost@send webhook are provided
• Refactor Message to array transformation from Mattermost to Message and Attachment class

1.1.1

• Use Git tags instead of composer.json "version" attribute

1.1.0

• Add the possibility to include actions with an attachment (#2 by @drakerc)

1.0.0

Initial release with Message and Attachment for incoming webhooks