Kodi 18 Leia is finally released after 2 years of waiting! As usual, Kodi is available as a free download for all supported platforms, including Windows, Mac, Linux, iOS, and Android. Click the download link from here and download the installation code of your platform.
I have installed Kodi 18 Leia and gave it a test. It is faster than Kodi 17 during executions. The interface is the very much the same as Kodi 17 so you don't have to learn new interface.
Some of the highlights of the new version are:
Added a Games window and Game OSD (On-Screen-Display) to the graphical user interface.
Added a RetroPlayer player core supporting game clients addons as well as emulator cores.
Added support for RDS (Radio Data System) for radio channels if the PVR backend client supports RDS.
Changed GUI actions to eliminate duplicate and dead code (major GUI refactoring for PVR and LiveTV).
Added, updated, and improved PVR backend clients addons for popular third-party external PVR backend platforms.
Improved the input manager and input API system for keyboards, mice, and game controllers.
Updated "Peripheral Addons" for game controllers, gamepads, joysticks, and input peripherals profiles.
Added support for BD-J / Blu-ray Disc Java menu support.
Added support for Blu-ray Disc detection and use provided meta data for Blu-ray Disc names.
Added support for video buffers to be used by decoders and renderers.
Improved Stereoscopic 3D playback of 3D videos (as well as better 2D playback of 3D videos).
Added an option to rescan the music file tags for existing items in the library.
Added additional artist data that Musicbrainz provides: type (person, group, orchestra, choir etc.), gender, and disambiguation comments that help to differentiate artists with the same name.
Added support for Python (script) based web scrapers for Kodi.
Added support to build Kodi with support for Bluetooth.
Added support for speech-to-text in Kodi OSD keyboard on Android TV.
Added support for Android to move the Kodi app to SD card.
Added support for Android TV Leanback search and recommendations metadata from Kodi.
If you’re already running Kodi 17, you can download and install the latest release over your existing installation. Everything should work fine.