Hi, Paul - you should have received an email from VP Sales Wally Tonra earlier this morning. It went to your company email. Did you receive it? If not, please message me, and I'll update our records.
Wally included the following in his message to active key holders, addressing this very question:
*You must upgrade prior to your key expiration date to avoid being locked out of the system and losing your valuable company data. Upgrade is easy... simply run an upgrade script provided after purchase.
PostBooks® -- and all xTuple software -- requires a license key to work. We will no longer issue free keys.
While your key may not expire right away, your special offer to upgrade WILL: September 30, 2019.
Wally is looking forward to your call or email!