We are thrilled to announce the release of Fun version 0.40.5! This update represents a major leap forward in language capabilities, developer experience, and project infrastructure since our last major announcement (v0.37.62).
The most significant language enhancement is the addition of nested functions in the Fun parser. This allows for cleaner encapsulation and enables powerful functional programming patterns, such as closures and advanced higher-order function implementations.
Fun is getting more "multi-lingual." We've introduced support for implementing opcodes in Rust, allowing developers to leverage Rust's safety and performance within the Fun VM. Additionally, we've started evaluating C++ integration for those who need it.
We've introduced `funstx`, a dedicated linter for Fun. It helps maintain the "Indentation is Truth" philosophy by ensuring your code follows the strict 2-space indentation rule and other stylistic consistency checks.
To ensure the stability of the language as it grows, we've implemented a full GitHub Actions CI workflow. Every commit now triggers automated execution of our extensive examples library, catching regressions early.
The Fun VM is now more flexible than ever. Key parameters like `MAX_FRAMES`, `STACK_SIZE`, and `OUTPUT_SIZE` can now be configured at build time via CMake defines (`-D`), allowing you to tune the VM for specific environments (from embedded systems to beefy servers).
As always, Fun remains an experiment, but with version 0.40.5, we are closer than ever to a stable 1.0. We've focused on cleaning up experimental features that didn't fit our minimalism philosophy while adding the powerful primitives needed for real-world hacking.
Want to try it out? Head over to our [Git Repository](https://git.xw3.org/fun/fun){:class="git"} or check out the updated [Documentation](https://fun-lang.xyz/documentation/).
