# Simplex 0.0.12 released

**URL:** <https://community.simplicity-lang.org/t/simplex-0-0-12-released/77>\
**Category:** Simplex\
**Created:** [September 26, 2026, 5:00am UTC](https://community.simplicity-lang.org/t/simplex-0-0-12-released/77 "2026-09-26T05:00:43Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![schoen](https://avatars.discourse-cdn.com/v4/letter/s/b3f665/32.png) [@schoen](https://community.simplicity-lang.org/u/schoen)\
**Post date:** [September 26, 2026, 5:00am UTC](https://community.simplicity-lang.org/t/simplex-0-0-12-released/77/1 "2026-09-26T05:00:44Z")

</div>

Simplex 0.0.12 has been released. You can get it [on GitHub](https://github.com/BlockstreamResearch/smplx) or via `simplexup`.

From the changelog:

## [0.0.12]

- Added transaction sanity check to the `Signer` to not sign obviously malformed transactions.
- Added dependencies validation step that prevents injection of parameters into the `git` command.
- Made tapleaf “storage” slots exactly 32-byte for onchain compatibility.
- Improved `wasm` API by supporting more `sdk` functionality.
  - Added support for confidential inputs.
  - Added custom derivation path signing (n/m).
  - Added `tapleaf_hash` function to the covenant.

- Fixed several minor bugs.