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New releases, improvements, and fixes across Flox, in reverse-chronological order. Subscribe to the RSS feed to follow along.
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v1.14.1

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Clearer activations and prompts

Activations now announce the environment they enter, the shell prompt shows just the environment name — including environments named default, which you can hide again with hide_default_prompt = true — and flox -q activate is now silent in every mode.

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Changed defaults

  • x86_64-darwin is no longer an implicit default system, because nixpkgs drops it from LTS releases after 26.05. It stays valid when listed explicitly in options.systems, and the current system is always included.
  • flox activate no longer adds the environment’s sbin directory to PATH by default — opt back in with flox activate --add-sbin.

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Also in this release

flox search now accepts terms such as c++, g++, and terms written in non-Latin scripts, and Flox reminds you to run flox auth login when you aren’t logged in to FloxHub. See the v1.14.1 release notes for the full list of fixes.
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v1.14.0

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Auto-activation

Flox now prompts to auto-activate environments when your shell enters their directory, and deactivates them on the way out — packages, environment variables, shell aliases, and services all load with a single cd. See the auto-activation docs.

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FloxHub personal access tokens

flox auth login accepts personal access tokens generated on your FloxHub profile page, supports non-interactive login via --token-file, and now stores credentials in your OS keychain instead of plain text — existing tokens migrate automatically.

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Also in this release

  • Trust every environment from an organization at once with flox config --set 'trusted_environments.myorg/*' trust.
  • Packages that ship etc/profile.d scripts have them sourced on activation.
  • flox build update-catalogs is deprecated — catalog inputs for Nix expression builds now resolve and lock automatically during flox build and flox publish.
See the v1.14.0 release notes.
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v1.0.0

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Flox skills v1.0.0

Expert Flox guidance for your AI coding agent: the flox skill creates and manages reproducible environments, and floxify onboards an existing repo — it detects runtimes, package managers, and services, then writes the manifest so flox activate is the only setup a new developer needs. Works with Claude Code, Codex, and any agent supporting the skills.sh standard. See the v1.0.0 release notes.
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v1.13.2

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Auto-activate improvements

Declining the auto-activation prompt is now remembered, re-allowed environments return to their correct position in the activation stack, and the prompt no longer hangs on fish. (Experimental — enable with flox config --set features.auto_activate true.)

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Custom catalogs in flox run

flox run -p owner/pkg -- ... now runs packages from custom catalogs using an authenticated download path.See the v1.13.2 release notes for the full list of fixes.
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v1.13.1

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Run packages without an environment

flox run -p <package> -- <command> resolves, downloads, and executes a Flox Catalog package in a single step — no environment required. Packages not in the binary cache, such as unfree packages, build from source automatically.

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Containerize dev or run directly

flox containerize accepts --mode to containerize the dev or run environment without editing the manifest, and flox build import-nixpkgs gains --stability to select the nixpkgs revision used for the import.See the v1.13.1 release notes.
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v1.13.0

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flox deactivate

Leave an active environment and return your shell to its previous state without closing it, plus a new profile.deactivate section for scripts that run on the way out.

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Build sandbox levels

Manifest builds add warn and enforce sandbox levels alongside off and pure, with a sandbox-allow list for files outside the build closure.

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Faster, clearer environment operations

flox upgrade output now separates version changes from same-version rebuilds, flox activate skips re-locking environments that are already current, and environment creation uses one nix build invocation per build-and-link cycle instead of three.See the v1.13.0 release notes.
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v1.12.2

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Flox CLI v1.12.2

Manifest builds can now use git describe to set version strings, flox publish no longer triggers unnecessary rebuilds, and debug output gains color highlighting to make slow operations easier to spot. See the v1.12.2 release notes.
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v1.12.1

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Default environment shortcut

The -D/--default flag references your default FloxHub environment in any command that accepts -r/--reference, replacing -r <user>/default.

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Smarter install and publish

flox install <package>^<output> now appends outputs to packages that are already installed, and flox publish skips the rebuild and publish when the exact build has already been published.See the v1.12.1 release notes.
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v1.12.0

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Services auto-start

Configure services to start automatically on activate.

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Build catalog updates

flox build update-catalogs is now public with full docs.See the v1.12.0 release notes.
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Package outputs on FloxHub

Browse and select package outputs on version and build pages on FloxHub.
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Package deprecation notices

FloxHub shows deprecation info in search results and on package detail pages.
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Environment SBOMs

Export SPDX and CycloneDX compliance documents for your environments.
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CUDA 12.6 support

First-class GPU toolkit support in the catalog. Read more.
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v1.10.0
Package search is now 5x faster. See the v1.10.0 release notes.
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v1.9.1

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Kerberos auth preview

Enterprise on-prem authentication, in preview. See the v1.9.1 release notes.
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v1.9.0

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Node version detection

Flox auto-detects .node-version files. See the v1.9.0 release notes.
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VS Code extension

Manage Flox environments from VS Code. Read more.