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LispPad 2.2

Sunday, February 1, 2026

A new version of LispPad was just released for macOS. You can either download it here or get it from Apple's App Store. It comes with an updated version of the LispPad Reference Manual. The release notes are listed below.

Bug fixes:

  • UI tweaks for macOS 26

  • Fixes quasiquote for expressions involving array literals

  • Fixes the (library ...) directive of cond-expand

New features:

  • New application icon consistent with LispPad Go on iOS

  • New library for handling locations: (lispkit location)

  • New library for creating and editing PDF documents: (lispkit pdf)

  • New library for solving computer vision problems: (lispkit vision); the library supports optical character recognition (OCR), shape detection, barcode recognition, and image classification.

  • New libraries for processing/manipulating images, providing access to Apple's Core Image framework: (lispkit image), (lispkit image process)

  • New library for drawing maps: (lispkit draw map)

  • New library for making and drawing snapshots of web pages: (lispkit draw web)

  • New exported definitions in library (lispkit draw): clip-drawing, bitmap-ppi, closed-polygon, inset-rect, size-ratio, rect-mid-point, rect-mid-x, rect-mid-y, zero-size, transpose. make-shape accepts a second optional argument freeze? which makes it possible to create a new shape from an existing one without introducing a dependency.

  • Improvements for reading and writing images via (lispkit draw): PDF files can now be read via load-image, load-image-asset and bytevector->image also on iOS. New procedures save-image and image->bytevector support saving images as PDF. save-bitmap and bitmap->bytevector now support a "quality factor" which indicates how strongly an image should be compressed.

  • New procedures in library (lispkit core): generate-uninterned-symbol, symbol<?

  • New functionality for library (lispkit enum): procedure enum-tag-mapper and enum constructors without name (to return the enum type)

  • Make it easier to generate date-time strings with procedure date-time->iso8601-string and parse date-time strings via string->date-time conforming with ISO 8601/RFC 3339.

  • API changes in library (lispkit object); generic procedure object->string was renamed to object-description

  • New sample code: ImageComposition.scm, OCR.scm, MermaidDiagrams.scm, Pinterest.scm

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