# Flox 1.13.0 is released!
**URL:** https://discourse.flox.dev/t/flox-1-13-0-is-released/1260
**Category:** Announcements
**Created:** [June 17, 2026, 1:47am UTC](https://discourse.flox.dev/t/flox-1-13-0-is-released/1260 "2026-06-17T01:47:08Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@blevine](https://discourse.flox.dev/u/blevine)
#### Post date: [June 17, 2026, 1:47am UTC](https://discourse.flox.dev/t/flox-1-13-0-is-released/1260/1 "2026-06-17T01:47:08Z")
Flox 1.13.0 is released!
**Features**
- `flox deactivate` is now available. Use it to leave an active environment and return your shell to its previous state, without closing the shell or terminal the way `exit` would.
- A new `profile.deactivate` section for scripts that run when an environment is deactivated. Requires setting `schema-version = "1.13.0"`.
- `flox upgrade` output now distinguishes version changes (`curl: 8.9.0 -> 8.10.1`) from same-version rebuilds (`terraform-docs: 0.21.0 (rebuild, ...)`) and summarizes them as “N version changes and M rebuilds”.
- Manifest builds support two new `sandbox` levels, `warn` and `enforce`, alongside `off` and `pure`, plus a `sandbox-allow` allow-list for files outside the build closure. Requires setting `schema-version = "1.13.0"`.
- A new `disable_hook` config option skips installing the prompt hook when set to `true`.
**Fixes**
- `flox activate` no longer re-locks or rebuilds an environment whose lockfile is already current.
- `flox upgrade` and `flox activate --remote` now correctly create activation symlinks on the first run in an environment that has never been built locally.
- Flox environment creation is faster, reducing `nix build` invocations from 3 to 1 per build-and-link cycle and spawning no fetch subprocesses when all packages are already cached.
Notes and download links available [here](https://github.com/flox/flox/releases/tag/v1.13.0)!
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### Author:  [@robinbrantley](https://discourse.flox.dev/u/robinbrantley)
#### Post date: [June 17, 2026, 9:28am UTC](https://discourse.flox.dev/t/flox-1-13-0-is-released/1260/2 "2026-06-17T09:28:39Z")
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### Author:  [@robinbrantley](https://discourse.flox.dev/u/robinbrantley)
#### Post date: [July 1, 2026, 8:34am UTC](https://discourse.flox.dev/t/flox-1-13-0-is-released/1260/3 "2026-07-01T08:34:19Z")