Copy your settings.yml, permissions.yml, aliases.yml and errors.json to a safe place to help you configure the bot later, or in case you wish to downgrade.
If you are using SQLite for storage, copy your database folder to a safe place for migration after you upgrade.
Update your Python version to 3.9 (https://www.python.org/downloads/) and ensure it is set as the system default. Use python3 -V to test on Linux and macOS or py -V on Windows and ensure it displays 3.9 as the version.
After you have backed up your configuration files and databases, you will need to completely re-install ZeoBot as this is a significant upgrade. Download the latest release from MC-Market, and unzip it to a different folder. Make sure there are no traces of the old version in this folder.
If you are using SQLite, make sure the database type is set to SQLite in the configuration. Create a folder in the ZeoBot folder called database. Paste all your database files here.
If you are using PostgreSQL, make sure your database details are filled in the configuration.
Now, open the migration folder, then open the 2.0.0 folder and run the migrate_databases.py file. (python3 migrate_databases.py for macOS and Linux or py -3.9 migrate_databases.py for Windows).
Configure and Run ZeoBot
After your databases have been migrated, configure ZeoBot's new configuration files, using the old files as a guide. Finally, run ZeoBot in the same way as before, following the Dependencies guide.
Make sure you run the migration script from the 2.0.0 folder.
If database migration fails, you will have to delete the databases in the case of SQLite or reset the database in the case of PostgreSQL.