set get property on upgrade

Former Member
Former Member
Two question about stored variables.

I have user setup in 9 variables (keys).
- store 9 keys on disk on exit
- restore on start
This work ok.

Update over terminal - just write new prg file on develop workflow:
1. I update the app without change keys, and new version get old keys.
2. I update the app and add 3 new keys - old 9 are get propertly - new 3 are unknow - I'm set it to default, and store on exit.

Send new version to market.

User update (appstore):
1. First update (compatible keys) - everything fine
2. New version with 3 new keys - app lost ALL keys, not new one.

What I not undestund about stored obiects?
How can I safe get old know keys when I add new one?