Please help us help you and fill where relevant:
LimeSurvey version: Version 2.50+, Build 160620
Own server or LimeSurvey Cloud: Own server (a VPS on BlueHost)
Survey theme/template: Default template
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Hello.  Our site uses an ancient version of Lime Survey, one that is ten years old now.  If we upgrade to the latest version, will we be able to retain our existing forms?

Thanks.

PS--I tried to post this as a response to my initial query, but the spam checker failed in all browsers and in all browser modes.