Hello,

1. Export Customizations:
   • Use Odoo Studio to export your custom models or fields and save the downloaded zip file.
2. Access Target Database:
   • Open the Odoo instance or database where you want to import the customizations.
3. Open Odoo Studio:
   • Access Odoo Studio in the target database.
4. Import Customizations:
   • Use the import function in Odoo Studio to upload the zip file containing your exported customizations.
   • Note: You can edit the exported file to include or exclude specific records as needed before importing.
5. Review and Test:
   • Review the imported customizations and test them to ensure they work as expected in the target environment.

By following these steps and editing the exported file as necessary, you can easily transfer your customizations between different Odoo databases or versions using Odoo Studio's export and import features.

Hope it helps

Hello,

One of the possible ways:

1) When you modify any odoo model record all changes in a  .txt file.

2) Upgrade your odoo version.

3) Install the official (not modified) versions of the extra modules that you need.

4) Try to apply the modifications to the modules again.

Don't forget that changes may not be applicable to the installed odoo version. Or they should be adjusted. So you should first try it on a staging copy of your website.

Stanislav