Updating
Can I update from any version number to Smartstore 5?
No, for an update Smartstore must first be updated to version 4.2.
Is an operating system cross update possible?
Yes, an operating system cross update is possible. A Smartstore 4.2 with a MS SQL database from a Windows server or hosting can be updated on a Linux server to Smartstore 5 and MS SQL for Linux.
Is a database cross update possible? That means an update from Smartstore 4.2 and MS SQL to Smartstore 5 and MySQL?
No, this is not provided.
Themes
Can I transfer my theme from version 4.2 to version 5?
You copy the 4.2 theme folder to the 5 theme folder. In the 4.2 theme folder, rename the "Content" folder to "wwwroot".
Probably a restart is necessary after this. After that you can activate the "new" theme in the backend.