## E.3 Singular 3 and Singular 4

The purpose of this section is to describe new features and changes between Singular 3-1-7 and Singular 4.* (formerly known as Spielwiese) both for developers and Singular users. In what follows we will refer to the systems as Singular 3 and Singular 4.

> E.3.1 Version schema for Singular |  |
> E.3.2 Notes for Singular users |  |
> E.3.3 Notes for developers |  |
> E.3.4 Building Singular |  |

User manual for Singular version 4.4.1, 2025, generated by texi2html.