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ProXPL Changelog

All notable changes to the ProXPL programming language will be documented in this file.

[1.6.4] - 2027-07-20

Added

  • Channels & Structured Concurrency: First-class asynchronous communication channels with task.group, task.spawn, and cooperative cancellation.
  • Actor Model: Lightweight message-passing actor concurrency model with actor, receive, !, and ? operators.
  • Database Connectivity (std.db): Universal database driver interface with connection pooling and support for SQLite, PostgreSQL, MySQL, and Redis.
  • Serialization (std.encoding): Standardized serialization modules for JSON, TOML, CSV, and Base64.
  • LSP v2: Semantic highlighting, find references, rename symbol, inlay hints, and code actions in the Language Server.
  • Compile-Time Evaluation (comptime): Compile-time constant expressions and compile-time function execution.

Changed

  • Project version bumped to 1.6.4 ("Concurrency Core") across all build configurations and manifests.
  • Keywords actor, receive, and comptime are now reserved.

[1.6.3] - 2027-04-15

Added

  • WebAssembly Target: Full WebAssembly (.wasm) compiler backend with JS glue code generation and prm serve --wasm.
  • Standard Web Libraries: Added std.web.dom, std.web.event, std.web.http, and std.web.canvas.
  • String Templates: Backtick-delimited template literals (`Hello, ${name}!`) with expression interpolation, multiline templates, and \${ escaping.
  • Operator Overloading: Support for + - * / % @ == != < > <= >= [] []= () - ! methods in user classes with inheritance.
  • Closures v2 & Escape Analysis: Detection of non-escaping closures for zero-heap stack execution, upvalue deduplication, and loop variable capture safety.
  • Code Formatter (prox fmt): Official syntax-aware code formatter supporting .proxfmt.pxcf configurations and --check mode.
  • Enhanced Diagnostics: Structured error codes (E0412, E0308), caret pointers, snippets, and Levenshtein typo suggestions (Did you mean 'name'?).

Changed

  • Backtick (`) is now reserved for string template literals.
  • operator is now a reserved keyword.
  • Project version bumped to 1.6.3 ("Wasm World") across all build configurations and manifests.

[1.6.2] - 2026-08-13

Changed

  • IR optimization and backend improvements to remove unnecessary object generation.
  • Reduced language binary size.

[1.6.0] - 2026-08-08

Added

  • Intent-Oriented Programming: Full bytecode generation and VM opcode dispatch for intent and resolver paradigms.
  • Context-Aware Polymorphism: Static type validation and dynamic VM scoping for context, layer, and activate mechanisms.
  • Autonomic Self-Healing (ASR): Operational resilient exception handling mapped natively onto the VM's setjmp/longjmp infrastructure.
  • Added extensive performance benchmarks for intents, context switches, and ASR recovery.
  • Added comprehensive testing scripts for validation of these core pillars.

Changed

  • activate statement now requires a scoped block.
  • intent declarations now require a trailing semicolon.
  • Project version bumped to 1.6.0 across all relevant compiler configurations.

[1.5.0] - 2026-07-31

Added

  • Added parsing for generic parameters and trait constraints in functions and classes.
  • Implemented trait resolution in the Type Checker.
  • The Type Checker now enforces that classes implement all required methods for the traits they adopt.
  • The compiler now verifies that generic trait bounds reference valid, known traits.

[1.4.0] - 2026-07-30

Added

  • Integration of mimalloc memory allocator for optimized runtime performance.
  • SwissTable dictionary optimizations using ctrl bytes for linear probing.
  • Zero-cost stack unwinding for Autonomous Self-Healing (ASR) resilient blocks using ExceptionHandlerTable.
  • LLVM PassManager configured for O3 (Vectorization and Inlining) and Tail-Call Optimization (TCO).

Changed

  • Project versions bumped to 1.4.0 across CLI, extensions, CMake, and installers.

For older releases, see the releases/ directory.