The Cabal developers are happy to announce the third release candidate for cabal-install-3.4.0.0 The corresponding tag are `cabal-install-3.4.0.0-rc3` and `Cabal-3.4.0.0-rc3`     https://github.com/haskell/cabal/releases/tag/cabal-install-3.4.0.0-rc3     https://github.com/haskell/cabal/releases/tag/Cabal-3.4.0.0-rc3 and there is a handful of binaries available at     https://oleg.fi/cabal-install-3.4.0.0-rc3/   Ubuntu-16.04 bindist should work on most recent Linux distributions, (requires at least kernel 3.15, compiled against glibc-2.23). Similarly darwin-sierra bindist should work on newer macOSes as well. Since the second release candidate (rc2) following issues were resolved: - Regression in cabal repl handling of `-z` flag   https://github.com/haskell/cabal/issues/7039 - Allow Win32-2.9.0.0   https://github.com/haskell/cabal/issues/7040 - v2-update updates file+noindex repositories cach   https://github.com/haskell/cabal/issues/7061 - Fix cabal sdist issues for packages with data-files   https://github.com/haskell/cabal/issues/7028 Since the first release candidate (rc1) following issues were resolved: - Bump process version required for job support to 1.6.9   https://github.com/haskell/cabal/issues/6986 - GHC-8.12 is GHC-9.0   https://github.com/haskell/cabal/issues/7019 - cabal-install-head v2-install fails to process source-repository-package   https://github.com/haskell/cabal/issues/7007 cabal-install-3.4 release highlights are: - Support for upcoming GHC-9.0 - Removal of sandboxes - Improved public sublibrary support - `active-repositories` configuration - Various `cabal init` improvements - Various `cabal sdist` improvements - `source-repository-package` are not treated as local packages - Added `list-bin` command Complete release notes (drafts) are at: https://github.com/haskell/cabal/tree/master/release-notes Please do test this release and let us know if you encounter any issues: https://github.com/haskell/cabal/issues - Oleg