The cores to run the campaigns from past versions:
- 'Selamat (1.10)' core to support running 'Selamat Datang di Wesnoth!' add-on
- 'Chào mừng (1.12)' core to support running 'Chào mừng đến với Wesnoth!' add-on
This 'core' can be selected following these steps:
- Start wesnoth and go to -> 'Preferences' -> 'Hotkeys'
- In 'Search' box, enter 'core'
- Press 'Add Hotkey' then press CTRL+SHIFT+k, and close dialog.
- In main 'Title Screen', press CTRL+SHIFT+k to open 'core' selection dialog.
- Select 'Wesnoth 1.10' or 'Wesnoth 1.12' core based on your language.
The next time you start Battle for Wesnoth, it will start with the last active core.
To go back to 1.16: you have to press CTRL+SHIFT+k and select the 'Wesnoth (Default)' core.