CHANGELOG.md — sigil-peg

1# Changelog

3Versions are synced with Sigil releases. A missing entry indicates no changes for that version.

5All notable changes to this project will be documented in this file.

7The format is based on [Keep a Changelog](https://keepachangelog.com/),

8and this project adheres to [Semantic Versioning](https://semver.org/).

10## [0.7.0] - 2026-03-01

12### Added

- Added procedure specifications with inline (: ...) syntax, optional runtime checking via sigil-checks feature, and predicate combinators (any-of, maybe, list-of, none-of).

15- Added procedure specs and docstrings to all exported procedures.

16- Added procedure specs and docstrings to all exported procedures.

- Added define-native compiler form for declaring native C bindings in Scheme modules with optional specs and docstrings.

18- Added VM-level exception handler stack for tail-optimized guard semantics, replacing prompt-based exception handling.

- Added multi-VM threading with share-nothing architecture, message passing, and parallel-map for data-parallel workloads.

20- Added preemptive yield points at loop back-edges to prevent CPU-bound tasks from starving the async scheduler.

- Added procedure specifications with inline (: ...) syntax, optional runtime checking via sigil-checks feature, and predicate combinators (any-of, maybe, list-of, none-of).

22- Added procedure specs and docstrings to all exported procedures.

23- Added procedure specs and docstrings to all exported procedures.

24- Added procedure specs and docstrings to all exported procedures.

- Added immediate-mode terminal UI toolkit with native C grid, layout system, component rendering, event parsing, text input, and chat demo application.

26- Added procedure specs and docstrings to all exported procedures.

27- Added procedure specs and docstrings to all exported procedures.

28- Added procedure specs and docstrings to all exported procedures.

29- Added procedure spec display in MCP search and exports tool output.

30- Added streaming HTTP download support with binary-safe reads and file serving with Range request support.

31- Added procedure specs and docstrings to all exported procedures.

32- Added procedure specs and docstrings to all exported procedures.

33- Added procedure specs and docstrings to all exported procedures.

- Added immediate-mode terminal UI toolkit with native C grid, layout system, component rendering, event parsing, text input, and chat demo application.

35- Added procedure specs and docstrings to all exported procedures.

36- Added procedure specs and docstrings to all exported procedures.

38### Changed

40- Changed I/O multiplexing to use epoll (Linux) and kqueue (macOS/BSD) instead of select(2) for better scalability.

41- Changed I/O multiplexing to use epoll (Linux) and kqueue (macOS/BSD) instead of select(2) for better scalability.

43### Fixed

- Fixed false positive capture corruption check in serializer, Windows build issues with mingw macro collision and unix-connect, closure arity errors now catchable by guard, and exception handler double-pop segfault.

46- Fixed sigil docs api command and added procedure spec signatures to generated API documentation.

48## [0.6.0] - 2026-02-22

50### Added

52- Added package-provided MCP tools with dynamic discovery and nREPL describe/modules operations.

53- Added package documentation for web stack (SXML, CSS, and Web routing/UI).

- Added higher-level UI components, css-sel compound selectors, Vinyl Vault demo application, and improved web API ergonomics including table actions, form loading, GET request handling, and error overlay fixes.

- Add Org Mode parser producing SXML output with support for headlines, metadata, source blocks, inline markup, links, lists, and property drawers.

56- Added table parsing support to Org Mode parser.

- Add rich error diagnostics with structured error type hierarchy, VM error kind mapping, and (sigil diagnostic) module with Levenshtein-based suggestions.

- Added R7RS compliance features: dynamic-wind, do syntax, datum labels, let-syntax, letrec-syntax, include/include-ci, import set modifiers (only, except, prefix, rename), cond-expand, features, syntax-error, bytevector ports, write-shared with datum labels, char-ready?, u8-ready?, interaction-environment, and (scheme time/process-context/repl) libraries.

59- Add XMPP client library with STARTTLS, SASL (SCRAM-SHA-1/PLAIN), roster, presence, and MUC support.

60- Added package documentation.

- Add 7 new MCP tools for live browser control (web-morph, web-error, web-status, web-navigate, web-css-class, web-css-reload, web-exec) with supporting SSE events and dev helpers.

62- Added package documentation for web stack (SXML, CSS, and Web routing/UI).

- Added higher-level UI components, css-sel compound selectors, Vinyl Vault demo application, and improved web API ergonomics including table actions, form loading, GET request handling, and error overlay fixes.

64- Added live-coding support via nREPL and SSE reload for real-time browser updates.

65- Add XMPP client library with STARTTLS, SASL (SCRAM-SHA-1/PLAIN), roster, presence, and MUC support.

66- Add XMPP client library with STARTTLS, SASL (SCRAM-SHA-1/PLAIN), roster, presence, and MUC support.

67- Added package documentation for socket and websocket APIs.

68- Added package documentation for socket and websocket APIs.

- Add rich error diagnostics with structured error type hierarchy, VM error kind mapping, and (sigil diagnostic) module with Levenshtein-based suggestions.

- Add 7 new MCP tools for live browser control (web-morph, web-error, web-status, web-navigate, web-css-class, web-css-reload, web-exec) with supporting SSE events and dev helpers.

71- Added live-coding support via nREPL and SSE reload for real-time browser updates.

72- Added package-provided MCP tools with dynamic discovery and nREPL describe/modules operations.

73- Add (sigil inspect) module for structured value introspection with nREPL and MCP integration.

74- Add XMPP client library with STARTTLS, SASL (SCRAM-SHA-1/PLAIN), roster, presence, and MUC support.

- Add rich error diagnostics with structured error type hierarchy, VM error kind mapping, and (sigil diagnostic) module with Levenshtein-based suggestions.

76- Added live-coding support via nREPL and SSE reload for real-time browser updates.

77- Added package-provided MCP tools with dynamic discovery and nREPL describe/modules operations.

78- Add (sigil inspect) module for structured value introspection with nREPL and MCP integration.

- Added higher-level UI components, css-sel compound selectors, Vinyl Vault demo application, and improved web API ergonomics including table actions, form loading, GET request handling, and error overlay fixes.

80- Added live-coding support via nREPL and SSE reload for real-time browser updates.

81- Added package documentation for web stack (SXML, CSS, and Web routing/UI).

82- Add XMPP client library with STARTTLS, SASL (SCRAM-SHA-1/PLAIN), roster, presence, and MUC support.

- Add PEG (Parsing Expression Grammar) library with S-expression pattern DSL, recursive interpreter with backtracking, and comprehensive capture system.

85### Fixed

87- Fixed SIGIL_NATIVES_MAX limit by increasing to 2048.

88- Fixed MCP format tool crash with auto-fix support, binary-safe nREPL wire protocol, and SIGPIPE handling.

89- Fixed MCP format tool crash with auto-fix support, binary-safe nREPL wire protocol, and SIGPIPE handling.

91### Other

93- Cache FNV-1a hash for string dict keys, avoiding repeated hash computation on dict lookups.

94- Collect docstrings for variable definitions and propagate native doc strings through re-exports.

95- Handle UTF-16 surrogate pairs in JSON unicode escapes. Reject bare low surrogates per RFC 8259.

96- Support multi-form eval via eval-string and add runtime doc fallback for undocumented exports.

97- Resolve re-export descriptions in search index from source module entries.