GAP Days “Spring” 2021

15th to 19th February 2021
Virtual/Remote/Home Offices

GAP Days in general

GAP Days are meetings where developers and users with GAP programming experience are invited to discuss, influence, and contribute to the future development of GAP. To streamline each meeting, the organisers usually suggest a few main topics to work on during the week.

The meetings are also suitable for advertising recent developments in GAP itself, and its packages, via short talks. However, the focus of the meetings is on development, with talks playing only a minor role. As enough GAP experts will be around for advice and technical support, the meetings offer particularly good opportunities for people to work on their own packages. At the end of the week, we would be happy to hear about any progress you made.

Please visit for a list of all GAP Days.

GAP Days “Spring” 2021

These GAP Days will focus on automation (introduction to GitHub Actions, setting up continuous integration tests and code coverage reporting, etc.) and an overhaul of the GAP release process (hopefully culminating in a new GAP release).

We will also include a small number of talks during the GAP Days about the GAP infrastructure and functionalities of GitHub.

While we do not want to discourage non-GAP-core programmers, we want to underline that the focus will be on working the release system of GAP. There will be talks and some “hands-on” sessions to give everyone the opportunity to learn the tools needed that will be most likely utilised in the release process. For anyone who wants to attend but feels out of depth in this, we will be looking for testers and other higher level tasks.

GAP Days “Spring” 2021 is organised by

Please note that these GAP Days are the second virtual GAP Days and while we have some experience, please expect some things to go wrong.


If you have questions or suggestions, then please contact the organisers by email at