LibreOffice Portable 3.4.3. is a full-featured office suite -- including a word processor, spreadsheet, presentation tool, drawing package and database -- packaged as a portable app, so you can take all your documents and everything you need to work with them wherever you go. This release updates LibreOffice to the latest versions and has several portability improvements. The portable version comes with its own MSVCRT runtime in order to work on systems without local installed rumtime too LibreOffice Portable is packaged in PortableApps.com Format so it can easily integrate with the PortableApps.com Suite. It supports upgrades by installing right over an existing copy, preserving all settings. And it's open source and completely free.

Features
LibreOffice Portable is a full-featured office suite that's compatible with Microsoft Office, Word Perfect, Lotus and other office applications. It's easy-to-use and feature-rich, performing nearly all of the functions you'd expect in an office suite, but at no cost. Additional functionality including the Base database and document creation wizards is enabled by installing the jPortable portable Java runtime environment.

Version Note: Which languages?
- The Normal includes support for Chinese (Simplifed and Traditional), Dutch, English, French, German (Homepage), Hungarian, Italian, Japanese, Korean, Polish, Portuguese (Portugal and Brazil), Russian and Spanish.
- The All Languages includes all 57 languages supported by LibreOffice.
- An experimental option during installation allows you to remove extra language templates, dictionaries, etc but may require launching LibreOffice twice on first run to complete the process.

LibreOffice 3.5.2.2 (2012-04-16)
Release Policy
LibreOffice is always available in two branches: a latest one with all new features and improvements (e.g. LibreOffice 3.5), and a previous release line (e.g. LibreOffice 3.4).

Not all users are able to use the new releases immediately. Corporate users with hundreds to thousands of desktops need time to test and deploy new versions in their environment. Also many Linux users rely on their Linux distributor to supply them with new versions of LibreOffice - this too takes time.
For these reasons, the Document Foundation continues to provide bug and security fixes to the older release also after the release of a newer version.
However, as a general rule, The Document Foundation advises all users to upgrade to the new version as soon as possible. Corporate users are advised to use professional support services to validate new releases in their environment, advise when to upgrade, and support them through the process, including familiarising users and help desk staff with the (new) features.

It is not correct to assume that versions from previous branches are 'safer' or 'more stable'. LibreOffice software improves continuously. Newer releases are updated regularly based on the latest feedback and suggestions from users, and so offer advantages over an older release which of course gets less user attention and feedback.