See https://haskellstack.org/ for installation and upgrade instructions. Changes since v2.3.1 Other enhancements: * Add the stack-developer-mode flag Bug fixes: * When using the STACK_YAML env var with Docker, make the path absolute. * Fix the problem of stack repl foo:test:bar failing without a project build before that. See #5213https://github.com/commercialhaskell/stack/issues/5213 * Fix stack sdist introducing unneded sublibrary syntax when using pvp-bounds. See #5289https://github.com/commercialhaskell/stack/issues/5289 Thanks to all our contributors for this release: * coord.e * Dmitry Dzhus * Emanuel Borsboom * Kirill Zaborsky * Michael Snoyman