1 About the New Features Manual

This is a supplementary volume to the four main parts of the GAP documentation: the GAP Reference Manual, which describes all the main features of GAP for users, the GAP Tutorial, a beginner's introduction to GAP, Programming in GAP and Extending GAP, which provide information for those who want to write their own GAP extensions.

This manual, New Features for Developers, describes certain features of GAP, which meet the following conditions:

·

They are new. Usually they were introduced at the last major release of GAP

·

They are likely to be of more interest to GAP programmers and package developers than to interactive users

·

We wish to retain the freedom to make some changes in them at the time of the next release

We would encourage users to employ these features in their own GAP programs or packages, but ask them to let us know that they are doing so. We will then invite feedback from them, and, as we approach the next release, discuss with them any changes to the features that might be desirable for inclusion in the next release. Unless substantial problems are found, we would normally expect to move the documentation into the reference manual at that time, and regard the documented behaviour as fixed from that time onwards.

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GAP 4 manual
May 2002