Hi Jess
you can have a look at the following answer
or else
you can contact a solution partners for your requirement . They can asses you instance and based on the requirement they can help you get a plan for your upgrade .
you can get the partner info available in your region here
https://www.atlassian.com/partners
Disclaimer : I work for one of the solution partners . :)
You must be a registered user to add a comment. If you've already registered, sign in. Otherwise, register and sign in.