CheckMK warns us about this plugin using the legacy API which won't work beginning with CheckMK 2.5
The extension package uses APIs which are deprecated or removed in Checkmk 2.4.0 so that this extension will not work anymore once you upgrade your site to next major version. We highly recommend solving this issue already in your installation by updating the extension package. Otherwise the extension package will be deactivated after an upgrade.
Details:
Legacy GUI extension in 'wato' uses an API (legacy) which is marked as deprecated in Checkmk 2.4.0 and will be removed in Checkmk 2.5.0 (File: local/share/check_mk/web/plugins/wato/mikrotik.py).
Legacy GUI extension in 'wato' uses an API (legacy) which is marked as deprecated in Checkmk 2.4.0 and will be removed in Checkmk 2.5.0 (File: local/share/check_mk/web/plugins/wato/mikrotik_register.py).
CheckMK warns us about this plugin using the legacy API which won't work beginning with CheckMK 2.5