# ghcup > Haskell toolchain installer. > Install, manage, and update Haskell toolchains. > More information: . - Start the interactive TUI: `ghcup tui` - List available GHC/Cabal versions: `ghcup list` - Install the recommended GHC version: `ghcup install ghc` - Install a specific GHC version: `ghcup install ghc {{version}}` - Activate a specific GHC version: `ghcup set ghc {{version}}` - Install cabal-install: `ghcup install cabal` - Update `ghcup` itself: `ghcup upgrade`