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Preface
ROS™ v3.5 14 RS400
• RS400 Installation Guide
• RuggedCom Fiber Guide
• RuggedCom Wireless Guide
• White paper: Rapid Spanning Tree in Industrial Networks
Applicable Firmware Revision
This guide is applicable to ROS™ software revision v3.5.x.
Firmware/User Guide Version Numbering System
ROS has a three-digit version numbering system of the form X.Y.Z where each digit is a number
starting from zero. The 'X.Y' digits represent the functional version of ROS whereas the 'Z' digit
represents firmware patches. The 'X' digit is incremented for major functional updates of the
product. The 'Y' digit is incremented for minor functional updates of the product. The 'Z' digit is
incremented for bug fixes, cosmetic enhancements and other minor issues.
User guides follow the same format. In general, a user guide will have the same 'X.Y' digits as
the firmware to which it corresponds.
It is RuggedCom's policy to provide Web access to only the latest 'patch' release for a version of
firmware. If you decide that an upgrade is merited, then getting all the fixes only makes sense. It
is for this reason that release notes are created detailing all patches for a given functional
version.