Userland Updates и Toolchain Update IT

[xeqipex]

Пожалуйста, помогите перевести.

Выражение встречается в следующем контексте:
(с сайта gentoo linux)
Table of Contents

* 1. Overview
* 2. Important Changes
* 2.1 Security Updates
* 2.2 Toolchain Update
* 2.3 X.Org Upgrade
* 2.4 Errata
* 2.5 Critical Package Updates
* 2.6 Userland Updates
* 2.7 Documentation Updates
* 3. Upgrading from previous versions of Gentoo Linux

Заранее спасибо

[alk]

http://en.wikipedia.org/wiki/Userland_(computing)
In the filesystem hierarchical sense, userland means storage space on the system disk that is not part of critical system storage, i.e., storage space used for storage of user files such as personal documents and other non-critical data. On Unix systems this space typically resides in the /home, /users, or /usr/home directories.

то есть пользовательская зона в файловой системе

http://en.wikipedia.org/wiki/Toolchain
In software, a toolchain is the set of computer programs (tools) that are used to create a product (typically another computer program or system of programs). The tools may be used in a chain, so that the output of each tool becomes the input for the next, but the term is used widely to refer to any set of linked development tools.

то есть среда разработки программных продуктов