Release Notes

Version 2.1

Date: 2024-11-24

Bug fixes:

• Fixed equivalence procedures for bitsets

New features:

• Support for all major JSON standards with libraries (lispkit json) and (lispkit json schema)
• Support for HTTP-based networking with libraries (lispkit http), (lispkit http oauth), and (lispkit http server)
• Deeper integrations into macOS via libraries (lispkit system keychain) and (lispkit system pasteboard)
• New concurrency features with support for atomic boxes with library (lispkit box), thread-safe shared queues with library (lispkit thread shared-queue), and futures with (lispkit thread future).
• Support for drawing a variety of barcodes with library (lispkit draw barcode)
• New libraries: (lispkit url), (lispkit serialize)
• Extended libraries: (lispkit thread), (lispkit system), (lispkit bytevector), (lispkit markdown), (lispkit dynamic), and (lispkit control)
• New sample code: OAuthDemo.scm, Keychain.scm, WebAPIs.scm, and Webserver.scm

Version 2.0.1

Date: 2024-02-29

Bug fixes:

• Fix saving the content of graphics windows

New features:

• Provide line-based editing features (delete and duplicate lines)
• Support selection of lines
• Support duplication of selected text
• Implement smarter parenthesis matching

Version 2.0

Date: 2024-02-09

Bug fixes:

• Enforce that imported (immutable) definitions cannot be mutated, unless it’s in the read-eval-print loop; export-mutable in library definitions enable mutability
• Improved display of OS-level exceptions and errors in read-eval-print loop
• Bug fixes in window management API provided by (lisppad system macos)

New features:

• Revamp of graphics windows with support for a toolbar, zoom, export of drawings, and editing of window properties
• Ported universal formatting facility from Common Lisp and made it available via library (lispkit format)
• Support customization of read-eval-print-loop result formatting
• Library (lispkit records) now supports extensible records compatible with SRFI 131
• Procedure type-of of library (lispkit type) now returns a list of type tags (from most specific to least specific type)
• New library (lisppad turtle) supporting indicators for turtles
• Support for currencies included in library (lispkit system)
• Renamed library (lisppad system) to (lisppad system macos)
• Renamed library (lispkit system os) to (lispkit system call)
• Extended libraries: (lispkit system), (lispkit port), (lispkit bitset), (lispkit system), (lispkit draw), (lispkit draw turtle), (lispkit core), (lispkit type), (lispkit bytevector), and (lisppad location)
• New libraries: (lisppad turtle), (lispkit format), (lispkit crypto), (lispkit archive tar), (lispkit list set), (srfi 239), and (srfi 235)
• New sample code: Blockchain.scm

Version 1.7.3

Date: 2023-02-12

Bug fixes:

• Improved R7RS regression tests
• Bugfixes in library (lispkit bytevector) for procedures bytevector-copy and bytevector-copy!

New features:

• Revamp of library (lispkit graph) with new procedures: graph-topological-sort, graph-graph-weakly-connected-components, graph-strongly-connected-components, and graph-shortest-paths
• New libraries: (srfi 228), (srfi 233), and (srfi 236)
• New documentation for library (lispkit graph)

Version 1.7.2

Date: 2022-12-22

Bug fixes:

• Fixed bug leading to deadlocks when using text ports
• Fixed bug allowing to execute empty lists
• Fixed serious bug leading to an infinite loop when iterating through stack traces

New features:

• New menu item “Show in Finder” to show the current document in the Finder
• Display memory footprint in session inspector
• Show call stack when errors are shown in sessions
• Limit stack size to prevent application crashes
• New settings for defining the maximum stack size and the maximum number of active calls to trace upon errors
• New procedure in library (lispkit thread): thread-max-stack
• Included new libraries: (lisppad draw map)
• New sample code: DisplayMap.scm

Version 1.7.1

Date: 2022-08-14

Bug fixes:

• Bug fixes to indentation with spaces and semicolons
• Bug fixes in library (lispkit draw chart bar) and (lispkit enum)
• Fixed division by zero issues with truncate and floor procedures
• Fixed bug preventing LispKit to correctly determine the maximum number of threads
• Optimized display of objects of custom types
• Removed duplicates in results of procedures available-fonts and available-font-families in library (lispkit draw)
• Changed defaults for procedure string-insert! of library (lispkit string)
• Made procedure open-file of library (lispkit system) work on iOS

New features:

• Performance improvements: Optimized code generation for lambdas without captured expressions
• Major revamp of all type-related functionality: each type is now represented by a type tag/symbol; procedure type-for from library (lispkit type) can be used to determine the type tag of a given object; breaking change for make-type, which now returns 5 values (the first is a new type tag)
• Major revision of library (lispkit clos)
• Support complex numbers for trigonometric and inverse trigonometric functions in library (lispkit math): sin, cos, tan, asin, acos, and atan
• Reimplemented and extended library (lispkit enum) making it compatible with SRFI 209
• New procedures in library (lispkit draw): bytevector->image, draw-styled-text, styled-text-size
• New procedure in library (lispkit core): procedure-rename
• Included new libraries: (lispkit math matrix), (lispkit bitset), (lispkit styled-text), (lispkit draw chart bar), (srfi 118), (srfi 141), (srfi 149), and (srfi 232)
• New sample code: ObjectOrientation.scm, DrawBarCharts.scm, and StyledTextDoc.scm

Version 1.7.0

Date: 2022-02-19

Bug fixes:

• Fixed several bugs in math libraries:
  • Prevent crash on division by zero for fx/
  • Make exact also work for negative numbers
  • Improve inexact when used with rationals with a very large numerator or denominator
• Fixed scope of <sym> in (let <sym> ...) form, making it not accessible in the bindings

New features:

• Allow preserving window setup when LispPad quits even if the setting “Close windows when quitting an app” is enabled.
• Multi-threaded evaluator, executing multiple virtual machines in parallel
• Go-inspired channels for synchronizing threads
• Revamp of math libraries, addressing incompatibilities and fixing numerous bugs:
  • Introduce consistent interface for: random, flrandom, and fxrandom
  • Support unary arguments for fx-, fl-, and fl/
  • Remove fixnum-width, least-fixnum and greatest-fixnum
  • New procedures make-flonum, flexponent, flsignificand, flnext, flprev, fx-width, fx-greatest, fx-least, fl-epsilon, fl-greatest, and fl-least
  • Support for many arguments for procedures flmin, flmax, fxmin, fxmax, fx+, fx-, fx*, fx/, fx=, fx<, fx>, fx<=, fx>=, fl+, fl-, fl*, fl/, fl=, fl<, fl>, fl<=, and fl>=
• New procedures in library (lispkit math util): make-nan, nan-negative?, nan-quiet?, nan-payload, and nan=?
• New procedures in library (lispkit system): physical-memory, memory-footprint, and system-uptime
• New procedure in library (lispkit port): display*
• New procedures in library (lispkit debug): stack-size, call-stack-procedures, call-stack-trace, and set-max-call-stack!
• Enabled concurrency support for library (srfi sicp)
• Included new libraries: (lispkit thread), (lispkit thread channel), (scheme flonum), (srfi 18), (srfi 144), (srfi 208), (srfi 230)
• Exceptions now include more information about the active call stack
• Include tutorial for channels as new example code

Version 1.6.3

Date: 2021-12-17

Bug fixes:

• Increased stack size of interpreter
• Fixed file/editor loader
• Fixed bug compiling every procedure twice
• Fixed implementation of procedure expt
• Fixed overflow issues in procedure approximate
• Fixed crashes in the rounding functions when used with rational big integers
• Moved procedure load into library (lispkit core)

New features:

• Integrated simple bytecode optimizer
• Implemented support for tagged procedures
• Implemented support for procedures with optional arguments
• Included new libraries: (lispkit math util), (lispkit math stats), (srfi 166), (srfi 227), and (srfi 229)
• Included new documentation for libraries (lispkit prolog), (lispkit math stats), (lispkit math util), (srfi 166), (srfi 227), and (srfi 229)
• Ported Peter Norvig’s pattern matcher and algebraic simplifier from Common Lisp to Scheme and included it as new example code
• Extended sample code Math.scm
• Updated PDF library reference manual

Version 1.6.2

Date: 2021-10-10

Bug fixes:

• Fixed bug in logic to detect valid local definitions
• Handle libraries with errors more carefully to prevent crashes
• Fixed bit counting bug in library (srfi 143) and expt in (lispkit math)

New features:

• Include all libraries in the library inspector, including libraries that are not loaded
• Support filtering in the libraries inspector
• New procedures in library (lispkit core): thunk?, procedure-of-arity?, procedure-name, procedure-arity, procedure-arity-range, procedure-arity-includes?, arity-at-least?, arity-at-least-value
• Added procedure icloud-directory to library (lisppad system)
• Included new libraries: (srfi sicp), (srfi 102), (srfi 217), (srfi 224)
• Included new documentation for library (lispkit text-table)
• New sample code: Simplifier.scm; extended sample code Math.scm

Version 1.6.1

Date: 2021-08-21

Bug fixes:

• Fixed behavior of “Play” button in editor windows, now setting the source directory correctly
• Bug fixes in library (lispkit system): home-directory also supports a non-sandboxed mode, file-path handles tilde correctly
• Bug fixes for a few procedures of library (lispkit archive zip)
• Bug fix in procedure load (previously, load always returned no result instead of the result of the last executed expression)

New features:

• New procedures in library (lispkit draw): bitmap->bytevector, bitmap-blur, bitmap-crop
• Support tables and definition lists in library (lispkit markdown)
• Support gzip and zlib container formats for deflate compression via library (lispkit bytevector)
• Support symlink resolution via procedure file-path of library (lispkit system)
• Included new libraries: (lisppad location), (lispkit text-table), (srfi 215), (srfi 216), (srfi 219), (srfi 221), (srfi 222), (srfi 223)
• Included new sample code EUStats.scm; extended sample code Math.scm
• Minor update of the LispPad and LispKit library documentation

Version 1.6.0

Date: 2021-05-28

Bug fixes:

• Allow let* and letrec* to redefine variables
• Minor bug fixes in LispKit libraries

New features:

• Execute LispPad code on iOS with LispPad Go
• Sync LispPad code via iCloud and use it with LispPad Go on iPhones and iPads
• Show Markdown document structure in editor windows
• Associate descriptions and help text with definitions (in Common Lisp style)
• New libraries: (lisppad audio), (lispkit archive zip), (lispkit prolog), (srfi 143), (srfi 189), (srfi 214), (scheme red), (scheme fixum), (scheme bitwise), (scheme division)
• Extended library (lispkit string) with procedures string-decode-named-chars and string-encode-named-chars
• Extended library (lispkit char) with procedure char-name
• Extended library (lispkit core) with new environment procedures: interaction-environment?, custom-environment?, the-environment, environment-definable?, environment-define, environment-define-syntax, environment-import, environment-documentation, and environment-assign-documentation!
• Extended library (lispkit sqlite) with procedures sqlite-database? and sqlite-statement?
• Support custom environments for the compile procedure of (lispkit debug)
• New sample code: PlayMusic.scm, ObliqueProjection.scm, VisualizePointSets.scm, Schelog.scm

Version 1.5.2

Date: 2020-12-26

Bug fixes:

• Fixed several editor-related bugs
• Fixed crash of virtual machine when execution gets aborted while loading and executing a file
• Minor bug fixes in LispKit libraries

New features:

• Complete revamp of user interface optimized for macOS Big Sur
• Introduced key equivalents for session and editor windows
• Rewrote line number display; allow selection of line ranges
• Introduced feature to automatically indent Scheme code
• Updated and extended documentation (accessible via “Help > LispPad Help” and “Help > LispPad Library Reference”)
• Included new libraries: (srfi 9), (srfi 180), (srfi 209), (srfi 210)
• Extended library (lispkit log) with syntax log-time
• Extended library (lispkit debug) with syntax time-values
• Extended library (lispkit math) with procedures fxodd?, fxeven?, fx-width, fx-greatest, and fx-least in library (lispkit math).; generalized procedure number->string
• Included new documentation for library (lispkit debug)
• Included new sample code: DrawTrees.scm, DisplayTrees.scm, and EditDistance.scm

Version 1.5.1

Date: 2020-10-05

Bug fixes:

• Fixed comparison of complex numbers and numbers involving NaN in library (lispkit test)
• Fixed small bugs in (lispkit match) and included support for =.., *.., and **1

New features:

• Improved Scheme automatic indentation algorithm
• Redesigned Scheme definitions menu in editor windows
• Revision of library (lispkit test) involving procedures test-group-failed-tests, test-group-passed-tests, failed-tests, passed-tests, current-test-epsilon
• Refactored debugging functionality into library (lispkit debug)
• New libraries: (srfi 194), (srfi 204), (lispkit sxml), (lispkit sxml html), and (lispkit sxml xml)
• New documentation for libraries: (lispkit iterate), (lispkit comparator), (lispkit match), (lispkit csv), (lispkit log), and (lispkit test)

Version 1.5.0

Date: 2020-07-01

Bug fixes:

• Speed up output in console windows by 10x
• Save command history in session documents
• Add “~/Documents/LispPad” as standard search path and search in external libraries and assets always first
• Fixed a few path creation functions in library (lispkit system) which failed for corner cases
• define-values can now be used wherever define can be used, fixing a long-standing bug
• Distinguish between empty response and failed request for HTTP requests in library (lispkit port)
• Fixed bugs in PDF library documentation and extended it to cover the new libraries

New features:

• Reorganized menus and shortcuts; improved “Help” menu
• Support for marking up identifiers for standard Scheme procedures and special-forms when syntax-highlighting is enabled
• Support for auto completions, including setting a custom delay both in console and editor windows
• New libraries: (lisppad applescript), (lispkit sqlite), (lispkit combinator), (lispkit system os), (srfi 195) and (srfi 196)
• New documentation for libraries: (lispkit combinator), (lispkit stream), (lispkit iterate), (lispkit stack), (lispkit queue), and (lispkit system os)
• Renamed library (lispkit iteration) into (lispkit iterate)
• Extended library (lispkit date-time) with procedures date-time-add, date-time-add-seconds, date-time-diff-seconds, date-time-in-timezone, date-time-same?, date-time=?, date-time<?, date-time>?, date-time<=?, date-time>=?, and date-time-hash.
• Extended library (lispkit core) with procedures thunk, thunk*, and apply-with-values
• Extended library (lispkit string) with procedures string-normalize-diacritics and string-normalize-separators
• Extended library (lispkit dynamic) with procedures unwind-protect and try
• Extended library (lispkit control) with procedure letrec-values
• Extended library (lispkit system) with procedures home-directory, system-directory, path-extension, append-path-extension, remove-path-extension, file-readable?, file-writeable?, file-deletable?, directory-readable?, directory-writeable?, and directory-deletable?.
• Extended library (lispkit draw) with procedures set-image-size!, bitmap-size, bitmap-pixels, bitmap-exif-data, and set-bitmap-exif-data!
• Support for timeouts in procedures handling HTTP ports in library (lispkit port)
• Small tweaks to library (lispkit csv)
• Library (lispkit box) now supports multi-value boxes
• New sample code Covid.scm, ComposePhotos.scm

Version 1.4.4

Date: 2020-03-30

Bug fixes:

• Fixed serious memory leak in the compiler and implemented several garbage collector enhancements
• Made field access of records type safe

New features:

• Linked documentation for SRFI libraries directly from the libraries info panel of session windows
• New example code: RenderMarkdown.scm, Polynomials.scm
• New libraries: (srfi 6), (srfi 54), (srfi 162)
• Extended library (lispkit dynamic) with assertion support: make-assertion-error, assertion, assert
• New documentation for libraries (lispkit record), (lispkit regexp), (srfi 6), (srfi 54), (srfi 162)
• Made LispPad Library Reference available in PDF form via the “Help” menu

Version 1.4.3

Date: 2020-01-24

Bug fixes:

• Fixed bug in library (lispkit set) which was leading to multi-set behavior
• Fixed garbage collection issue in library (lispkit hashtable)
• Fixed cosmetic issues in the line number viewer of the text editor

New features:

• Library documentation now directly accessible in the “Libraries” tab of session windows
• Support for document type-specific text completions
• Support logging of garbage collection runs
• New mechanism for providing/configuring assets such as images, documents, etc., enabling libraries to depend on data in an extensible fashion
• New example code: SpellNumbers.scm, Sudoku.scm; extension of Math.scm
• New libraries: (lisppad speech), (lispkit markdown), (lispkit disjoint-set), (srfi 175), (srfi 167), (srfi 98), (srfi 87)
• Extended library (lispkit system) with procedures asset-file-path, path-components, parent-path, path, and source-directory
• Extended library (lispkit bytevector) with procedures read-binary-file and write-binary-file
• Extended library (lispkit string) with procedures write-file, read-file, string-pad-center, string-empty?; string-concatenate now supports an optional separator character
• Extended library (lispkit port) with procedures open-input-asset, open-binary-input-asset, call-with-output-bytevector, and call-with-output-string
• Extended library (lispkit hashtable) with procedure hashtable-empty-copy; hashtable-hash-function can now return a hash function for all hashtables
• Extended library (lispkit math) with procedure fxsqrt
• Extended library (lispkit core) with procedure opt
• Extended library (lispkit draw) to support assets, color lists and drawing of HTML
• Added character set char-set:newlines to (lispkit char-set)
• New documentation for libraries (lisppad speech), (lispkit port), (lispkit heap), (lispkit markdown), (lispkit disjoint-set), (srfi 175), (srfi 167), (srfi 98), (srfi 87)

Version 1.4.2

Date: 2019-10-21

Bug fixes:

• Replaced garbage collector with a more robust implementation
• Fixed several issues in library (lispkit math): integer->fx renamed to integer->fixnum, introduced fxlogical-shift-right and real->flonum, fixed bit-count, fixed fxmodulo to work with negative numbers
• Fixed explanations for symbols containing “->”

New features:

• Simplified printed representation of procedures
• Provided a more complete set of hash functions via library (lispkit hashtable)
• New libraries: (lispkit comparator), (srfi 174), and (srfi 177)
• New documentation for libraries (lispkit math) and (lispkit bytevector).

Version 1.4.1

Date: 2019-09-10

Bug fixes:

• Fixed handling of option-clicks to show documentation popovers
• Fixed memory leak involving recursive local functions
• Implemented algebraic datatypes in terms of more efficient internal functions

New features:

• Allow logging of input and output of sessions
• Support for uninterned symbols
• Support for custom keywords in let-keywords
• Extension and re-implementation of library (lispkit type)
• New libraries: (lispkit stream), (scheme mapping), (srfi 146), (srfi 165), (srfi 173)
• Inclusion of miniAdapton in a new third-party directory
• New example code for generating mazes
• Included documentation for (lispkit control), (srfi 173)

Version 1.4.0

Date: 2019-08-21

Bug fixes:

• Bug fixes in library (lispkit gvector)
• Fixed memory leak involving recursive local functions

New features:

• Significant performance improvements in the LispKit interpreter
• Documentation popovers in session and editor windows (use menu item “View > Explain…” or option-click on symbol)
• Documentation viewer in environment sidebar of session windows
• New SRFI libraries: SRFI 26, SRFI 33, SRFI 46, SRFI 55, SRFI 146, and SRFI 165
• New libraries: (scheme mapping), (lispkit stream), (lispkit graph)
• Included documentation for SRFI 26, SRFI 33, SRFI 46, SRFI 55, SRFI 146, SRFI 161, SRFI 165, (lispkit core), (lispkit list), (lispkit dynamic), (lispkit char), (lispkit char-set), and (lispkit string)

Version 1.3.1

Date: 2019-02-27

Bug fixes:

• Complete re-write of library import and export logic fixing numerous bugs and incompatibilities with R7RS
• Improved reporting of errors in library definitions
• Fixed output of multi-value results in the session window
• Allow @ as initial character in identifiers

New features:

• New libraries: (lispkit csv), (lispkit match), (lispkit regexp), (lispkit gvector), (lispkit date-time)
• Extended (lispkit vector) and (lispkit list) libraries
• Support for let-keywords and let*-keywords in library (lispkit control)
• Support call tracing for individual procedures
• Include call traces in the session log
• Make the last three session results available via *1, *2, and *3

Version 1.3

Date: 2019-01-04

Bug fixes:

• Fixed font handling in session windows
• Bug fixes affecting fold-left, max, min, numerator, denominator, log, magnitude, gcd and lcm, as well as the escaping of symbols
• Handle closing of ports correctly in library (lispkit port)
• Fixed major bug in library (lispkit system) affecting the composition of file paths
• Moved from #\dx???? syntax to #\x???? to represent character literals

New features:

• Session log (for making all log data available via one window)
• New libraries: (lisppad log), (lispkit log), (lispkit char-set), (scheme char)
• Support for most Scheme libraries from R7RS large/Red edition: (scheme box), (scheme charset), (scheme comparator), (scheme generator), (scheme hash-table), (scheme ideque), (scheme list), (scheme rlist), (scheme set), (scheme sort), (scheme stream), (scheme text), (scheme vector)
• New SRFI libraries: SRFI 14 (full + ascii), SRFI 101, SRFI 125
• New functionality in library (lispkit test):
  • Support for nested test groups
  • Approximate tests
  • Handling of exceptions
• More user-friendly error messages for operating system errors
• New example code showcasing LispPad’s drawing library
• Extended Help menu

Version 1.2.3

Date: 2018-11-05

Bug fixes:

• The “LispPad Help” menu item still didn’t work in version 1.2.2; this is fixed now

New features:

• Support jumping to a given line number and to the beginning and end of a text document
• Included implementation of “Tiny CLOS” as library (lispkit clos)
• New SRFI libraries: SRFI 23, SRFI 34, SRFI 39, SRFI 95
• Documentation for libraries (lispkit set) and (lispkit enum)

Version 1.2.2

Date: 2018-11-02

Bug fixes:

• The help book was missing in the last release; it’s included again

Version 1.2.1

Date: 2018-10-30

Bug fixes:

• Revised all hash functions; fixed several hashing-related bugs
• Bug fixes in library (lispkit draw)

New features:

• Support for dark mode
• Markdown syntax highlighting
• New preferences pane: colors customizable for syntax highlighting
• Extended library documentation in LispPad’s help book
• New SRFI libraries: SRFI 11, SRFI 14, SRFI 16, SRFI 51, SRFI 161
• New libraries: (lispkit draw turtle), (lisppad turtle)
• New functionality in library (lispkit draw):
  • New drawing functions
  • Comprehensive font API
  • Support for multi-page PDF files

Version 1.2.0

Date: 2018-08-21

Bug fixes:

• There is now a HelpBook available within LispPad
• Printing of all documents now works correctly
• Bugs in SRFI 69 are fixed
• Continuations are now correctly tagged and continuation? works as documented
• Multiple libraries can now be imported with one import invocation, as required by R7RS
• current-input-port, current-output-port, and current-error-port have been turned into parameter objects, as required by R7RS
• (lispkit test) was extended to be more compatible with similar libraries

New features:

• The menu showing currently opened windows now groups the windows by type
• LispPad is now able to create, open and edit .txt and .md text documents
• The new (lispkit draw) library provides a powerful API for creating drawings and saving them as PDF documents or image files
• The new (lisppad system) library allows users to script LispPad directly using Scheme
• LispPad now supports graphics windows to display drawings created with (lispkit draw)
• New SRFI libraries: SRFI 111, SRFI 112, SRFI 113
• New example code showcases the new drawing and scripting features

Version 1.1.1

Date: 2018-06-19

Bug fixes:

• Prelude and libraries path preferences are now handled correctly and do not result in access issues anymore
• Programs blocking on functions like read can now be terminated
• Minor bugs in bitwise operations for exact integers of arbitrary size fixed
• string-split now returns a list instead of a vector

New features:

• Allow setting a default home directory outside of the application’s sandbox (in preferences)
• Complete rewrite of the error reporting subsystem, including support for file-error? and read-error?
• New library: (lispkit test)
• New SRFI libraries: SRFI 69, SRFI 129, SRFI 137, SRFI 145, SRFI 151
• New example code for coroutines, HTTP support, and a small compiler for arithmetic expressions

Version 1.1.0

Date: 2018-02-08

Bug fixes:

• Support tail patterns in syntax-rules and fix various syntax-rules-related bugs
• Fixed major bug in macro expansion logic
• Fixed major bug preventing internal definitions to work in many cases

New features:

• Complete refactoring of the default libraries to match the R7RS specification
• New libraries: (lispkit json), (lispkit wt-tree), (lispkit object), (lispkit stack), (lispkit queue), (lispkit logic)
• New SRFI libraries: SRFI 63, SRFI 64, SRFI 158
• Support for features and cond-expand
• Support include and include-library-definitions in library definitions
• Implement missing R7RS functionality: define-values, syntax-error, scheme-report-environment and null-environment.
• Added SRFI 112-style support for human-readable information about the hardware and operating system on which LispPad is running
• Simple API for HTTP GET requests
• Simple native API for date/time functions
• Bitwise operations for exact integers of arbitrary size
• Extension of hashtable API
• Extension of bytevector API
• Extension of list API
• New lightweight type abstraction mechanism
• Support call tracing (as a simple debugging mechanism)
• Name new session windows differently than new editor windows

Version 1.0.2

Date: 2017-09-18

Bug fixes:

• Garbage collection now does not accidentally collect anymore parts of parameter objects
• Record type creation now working also for records with fields that are not set by the constructor
• More syntax-rules bug fixes

New features:

• Support for algebraic datatypes
• Added a few additional destructive string functions
• Added pretty printer via library (lispkit prettify)
• New library for implementing priority queues: (lispkit heap)
• New library for creating PDF files: (lispkit pdf)
• Support for SRFI 152
• New example code

Version 1.0.1

Date: 2017-08-14

Bug fixes:

• Files can now be opened via the Finder
• Several issues with macros have been resolved in the Scheme interpreter
• Several issues with String functions have been fixed in the Scheme interpreter

New features:

• Added new Open Internally… menu item to access example source code and the source code of internal libraries
• Support R6RS-style enumerations
• Support for SRFI 31
• Support for SRFI 35
• Support for SRFI 135

Version 1.0

Date: 2017-07-17

First published version.