---
title: 0.3.0
description: "System and CLI BIFs."
icon: phosphor-duotone:tag
order: 13
---

Released 2026-03-10. [GitHub release](https://github.com/ortus-boxlang/matchbox/releases/tag/v0.3.0) | [Downloads](https://downloads.ortussolutions.com/ortussolutions/matchbox/0.3.0/)

## Added
- **System BIFs**: Added `createUUID()`, `createGUID()`, and `getSystemSetting()`.
- **CLI BIFs**: Added `cliGetArgs()` (structured parsing), `cliRead()`, `cliConfirm()`, `cliClear()`, and `cliExit()`.
- **Expanded Array Library**: 20+ new BIFs including `arraySort`, `arrayFindNoCase`, `arrayAvg`, `arraySum`, `arrayUnique`, etc.
- **Expanded Struct Library**: 15+ new BIFs including `structAppend`, `structMap`, `structFilter`, `structSort`, `structKeyExists`, etc.
- **Math BIFs**: `abs`, `min`, and `max`.
- **`rust:` Imports**: Support for importing native Rust modules and classes using `import rust:path.to.Module`.
- **MatchBox Macros**: New `matchbox-macros` crate for zero-boilerplate Rust-to-BoxLang interop (automatic BIF and Class registration).
- **Polymorphic Inline Caches (PIC)**: Enhanced member access performance with support for multiple shapes per call site.
- **Generational Garbage Collection**: Improved GC performance with young/old generation separation and optimized allocation strategies.
- **String Interning**: Added a global string interner for deduplicating identifiers and property names, reducing memory overhead.
- **Fiber Scheduling**: Implemented timeslice-based quantum management and priority handling for concurrent tasks.
- **Logical Operators**: `||`, `&&`, and unary `!` (with short-circuit evaluation).
- **Ternary Operator**: `condition ? trueValue : falseValue` expressions, nestable.
- **`continue` Statement**: Skip to the next iteration in both `for` and `for-in` loops.
- **Sparse Array Assignment**: Assigning to an out-of-bounds array index auto-grows the array, filling gaps with `null`. Reading beyond the end also returns `null` instead of throwing.
- **`--output <path>` CLI flag**: Override the output file path when compiling a script.
- **`--strip-source` CLI flag**: Strip embedded source text from compiled `.bxb` output for smaller binaries (~35% reduction).
- **JS Interop (WASM target)**: `JsHandle`-based host function bridge (`matchbox_js_host`) for DOM and JS API access from scripts.

## Changed
- **Flat u32 Bytecode**: Refactored the entire VM to use a high-performance flat u32 opcode encoding.
- **Optimized Loop Handling**: Added specialized `FOR_LOOP_STEP` opcodes for faster iteration.
- **Generic `len()`**: The `len()` BIF now natively supports Arrays, Structs, and Strings.

## Fixed
- Fixed critical stack management bug in `CALL` where passing too many arguments caused a subtraction overflow.
- Enabled string comparison support in `GREATER` and `LESS` opcodes to allow sorting strings in prelude functions.
- Fixed deserialized function chunks causing an index-out-of-bounds panic in the VM.
- Fixed source text being duplicated into every function/method sub-chunk at compile time.
- `continue` now works correctly inside `for-in` loops.