Upgrade from Zextras 2.6.1 to latest 3X series

[tgx]

I am a little confused after the upgrade.
In 2.6 we used ZXChat function. It still works after
the upgrade but I read that it had been replaced by Team.
I see Team in the Zimbra Core menu as a Zimlet with number
of licenses zero, which is fine, we have not yet purchased a Team
license. My question is, Is ZXchat considered 'Team Basic' which
is also mentioned. I am not sure I need a full Team license but
I at least want to know know if I am using Team Basic or if there
is a clicky box I need to do set to move from ZXChat to Team Basic?

[tgxperience]

In case others are wondering you must enable the Team Zimlet after an upgrade.
That will switch you from ZXChat to Team, it does not migrate you from ZXChat to Team
during the upgrade.No license is required for Team Basic but you can unlock additional
features by licensing.