# DeciMojo v0.6.0 released: faster big numbers and cleaner Mojo testing

**URL:** <https://forum.modular.com/t/decimojo-v0-6-0-released-faster-big-numbers-and-cleaner-mojo-testing/2595>\
**Category:** Community Showcase\
**Created:** [January 12, 2026, 1:14pm UTC](https://forum.modular.com/t/decimojo-v0-6-0-released-faster-big-numbers-and-cleaner-mojo-testing/2595 "2026-01-12T13:14:33Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![forfudan](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.modular.com/forfudan/32/925_2.png) [@forfudan](https://forum.modular.com/u/forfudan)\
**Post date:** [January 12, 2026, 1:14pm UTC](https://forum.modular.com/t/decimojo-v0-6-0-released-faster-big-numbers-and-cleaner-mojo-testing/2595/1 "2026-01-12T13:14:33Z")

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DeciMojo v0.6.0 is out! 😄

The latest DeciMojo releases focus on significantly expanding high-precision math capabilities and improving long-term maintainability.

**v0.5.0 (feature-heavy release)**

- Major upgrades to **BigUInt** and **BigDecimal** , with substantial performance improvements.

- Added **high-precision math support** , including trigonometric functions and π computation (Chudnovsky algorithm).

- Introduced faster algorithms for large numbers (Karatsuba multiplication, Burnikel-Ziegler division), SIMD optimizations, and more efficient in-place operations.

- API refinements such as renaming `Decimal` → `Decimal128` and improved error handling via a unified `DeciMojoError`.

**v0.6.0 (infrastructure & compatibility release)**

- Migrated the entire test suite to Mojo’s native **`TestSuite`** framework, replacing deprecated tooling.

- Updated the codebase for compatibility with **Mojo v0.25.7**.

You can install **DeciMojo v0.6.0** by adding the following line to the `dependencies` section of your `pixi.toml` file:

```bash
[dependencies]
decimojo = "==0.6.0"

```

Full release notes and details are available in the GitHub repo:  
[https://github.com/forfudan/decimojo/releases](https://github.com/forfudan/decimojo/releases?utm_source=chatgpt.com)

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<div class="post-metadata">

**Author:** ![clattner](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.modular.com/clattner/32/201_2.png) [@clattner](https://forum.modular.com/u/clattner)\
**Post date:** [January 13, 2026, 6:29am UTC](https://forum.modular.com/t/decimojo-v0-6-0-released-faster-big-numbers-and-cleaner-mojo-testing/2595/2 "2026-01-13T06:29:45Z")

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This is really cool Yuhao! Do you have any specific applications that could be built on top of this that you’d like others to pursue? It could be a great learning project for someone to try that out!

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<div class="post-metadata">

**Author:** ![forfudan](https://sea1.discourse-cdn.com/flex001/user_avatar/forum.modular.com/forfudan/32/925_2.png) [@forfudan](https://forum.modular.com/u/forfudan)\
**Post date:** [January 16, 2026, 1:37pm UTC](https://forum.modular.com/t/decimojo-v0-6-0-released-faster-big-numbers-and-cleaner-mojo-testing/2595/4 "2026-01-16T13:37:29Z")

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Thank you, Chris!

The most straightforward use of DeciMojo is as a pure-Mojo alternative to Python’s `int`, especially when you need big integers. It also covers much of what Python’s `decimal` module is used for.

On top of that, it could be a fun foundation for learning projects like a finance/tax or invoice calculator, a scientific calculator, stable JSON serialization for exact numeric output, or even basic symbolic computation.

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**Author:** ![system](https://us1.discourse-cdn.com/flex001/uploads/modular/original/1X/2751e0fbdc595a99718b216730957e9db4448cfd.jpeg) [@system](https://forum.modular.com/u/system)\
**Post date:** [July 15, 2026, 1:38pm UTC](https://forum.modular.com/t/decimojo-v0-6-0-released-faster-big-numbers-and-cleaner-mojo-testing/2595/5 "2026-07-15T13:38:24Z")

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