v4.4.0

• Restore ability to inspect rawText and rawMessage on SlackMessage objects (#413) - thanks @mistydemeo
• Relieve extraneous users.list Web API method calls from occurring due to hubot brain (#419) - thanks @chapmanc
• Add ability to set RtmClient options and rtm.start options via env vars (#431, #421) - thanks @aoberoi
• Documentation fix (#426) - thanks @TonioOoOo

v4.3.4

• Fixes issue when events arrive from user's who are outside the team/workspace you are connected to (#404).

v4.3.3

Adds support for message threads. Thanks @ndaversa! 🎉

v4.3.2

• fixes a bug where user_change events would cause hubot to crash (#391). thanks @aoberoi,
  @DonEmil, and @pearswj.

v4.3.1

• fixes a bug where hubot's using a token without permission to read a user's email would cause a crash (#388). thanks @aoberoi.

v4.3.0

• loads slack users into robot.brain. (#381) thanks @NKMR6194!
• fixes various typos and inaccuracies in the docs (#383, #378, #376).

v4.2.2

• Fixed a surprisingly wide range of bugs whereby we incorrectly formatted incoming messages that tagged
  channels or users. Now if someone says "@foobar", your bot will here "@foobar", just as you'd expect.
• So, it turns out you can't have both an event handler in a base class called topic and a setter method
  in a derived class called topic. Who knew? Stupid dynamically typed languages.
• v4.2.1 was retconned by the recently updated documentation. The retcon has been retconned.

v4.2.1

• Emergency bugfix because typos.

Easy Reactor

• And now we have an even easier way of watching for message reactions

The Reactions Strike Back

• Somewhere out there, someone has been pining to handle message reactions. If that someone is you, this release lets you do that. Preprare to receive new ReactionMessage messages when reactions are added or removed from messages! To the rest of you: Carry on.