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The documentation on this page is for a legacy release of Dyalog. Visit our Documentation page for information on the current release.

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Dyalog Documentation

Dyalog Documentation brings together everything you need to work with Dyalog and Dyalog APL. Whether you are getting started or looking for something specific, you will find guides, reference material, examples, release notes, and tools covering both the environment and the language.

Latest Release

Version 19.0

Release Notes (PDF)

Released: March 2024

Supported Versions

Version 18.2

Release Notes (PDF)

Released: March 2022

Version 18.0

Release Notes (PDF)

Released: June 2020

Version 17.1

Release Notes (PDF)

Released: October 2019

Unsupported Versions

Version 17.0

Release Notes (PDF)

Released: July 2018

Version 16.0

Release Notes (PDF)

Released: June 2017

Version 15.0

Release Notes (PDF)

Released: June 2016

Version 14.1

Release Notes (PDF)

Released: June 2016

Version 14.0

Release Notes (PDF)

Released: June 2014

Version 13.2

Release Notes (PDF)

Released: January 2013

Version 13.1

Release Notes (PDF)

Released: April 2012

Version 13.0

Release Notes (PDF)

Released: April 2011

Version 12.1

Release Notes (PDF)

Released: November 2009

Version 12.0

Release Notes (PDF)

Released: August 2008

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Get Support

Technical advice and assistance on all aspects of Dyalog usage is available by e-mail (support@dyalog.com) and/or telephone (+44 1256 830030 – limited to U.K. office hours). Limited advice on design and coding is available, but is not intended to replace the use of the printed and on-line documentation. Except when reporting an issue with the software, users are encouraged to seek advice from the user community via the Dyalog Forum (reading the content of the forums does not require membership).

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