Kodi version 18 has been released as has LibreELEC version 9.

If you’ve checked for updates on your Raspberry Pi and nothing is showing here’s the solution.

1. Go to the LibreELEC Add-On
2. Change Automatic Updates from Auto to Manual
3. Enable Show Custom Channels and then disable it
4. From the Update Channelmenu chooseLibreELEC-9.0
5. Go to Available Versions
6. Install 9.0.0 (or the latest)
7. Turn Automatic Updates back on
8. Repeat when LibreELEC version 10 comes out