It's up to you. The nightly builds contain version 4. However, if you want to try out the latest version (version 5), it can be manually downloaded and configured from their official repository.
Integration of Metasploit with slack is not mandatory. However, in most Red Teaming activity, you may find it pretty useful as you may not always be in a situation where you will have your laptop in your hand to check and confirm sessions, especially when social engineering is being used. The slack app can be easily configured on your phone and getting notified of every new session becomes very easy.
Yes! Cortana scripts can be created and loaded easily based on the requirements of your activity.
Although the ...
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