The latest public version of firmware for the Trimble NetRS is 1.3-0.  Download links for the installation file and official release notes are linked below:
NetRS-1.3-0.ppc.rpm
1.3-0 Release Notes (pdf)

This release has been formally accepted for general use, and it is recommended that all users install this version.  This update fixes critical issues in earlier versions caused by serial devices (such as met packs) and binex streams.  See the release notes for more details or email Freddy Blume with any questions.

Configuration files generated by previous firmware versions can be used with 1.3-0, but it is recommended that users generate new configuration files once this version has been installed that take advantage of the new features (or explicitly disabled). 

Trimble recommends that users not apply configuration files to firmware versions earlier than those used to generate them, although this has been tested with no ill effects observed.  Do so at your own risk.

UNAVCO members who have purchased NetRS receivers through Community Purchases are entitled to 5-year warranty codes from the date of purchase.  Users who require new codes to extend the warranty period should email Patty Chonis (patty_chonis@trimble.com) with the serial number(s).

Details:

Name        : NetRS
Summary     : Trimble NetRS Full Firmware Package, version 1.3-0
Version     : 1.3-0
Build Date  : Mon Apr  5 20:55:16 2010
License     : (c)2004-2010 Trimble Navigation Limited
Size        : 11497214 bytes

This is a full release RPM package for a Trimble NetRS GPS receiver.

    Firmware Version 1.3-0
    Firmware Date    2010/04/05

To install this release use the NetRS Browser interface to upload
this file onto your NetRS.  Then click the Install button.  The
installation process will take several minutes.

Expected Installation Time : 400 seconds

==========================================================
Trimble NetRS Firmware Version 1.3-0
==========================================================

This is a Minor Feature release that adds several features and fixes
some problems with the previous 1.2-X series firmware.

--------------------------------------------------------------
New Features
--------------------------------------------------------------
- Add AutoReboot feature.  Controlled from the Receiver Configuration ->
  System Reset page, and via programmatic commands Show/Set AutoReboot.

- Allow Trimcomm command 0x54-GETSVDATA to set IgnoreHealth control
  on satellites.

- Adjust Binex antenna-related records to include IGS Antenna name, IGS
  Radome name, antenna serial number and radome serial number.  Allow
  viewing, selection and entry of these values from the Web GUI and
  programmatic interface.

- Include more antenna types that are commonly used by NetRS users.

- Adjust Binex Met/Tilt records to include Timetags and Commands, as
  well as Met/Tilt responses.

--------------------------------------------------------------
Bug Fixes
--------------------------------------------------------------
- Detect and restart stuck measurement streams.

- Improve handling of UTC Leap Seconds.

- Tighten security on SysInfo Test page.  Add ps and top commands.

- Fix problem with memory leak when running Met-Tilt interface and
  sending the results to a Binex I/O stream.

- Fix problem with lost records during continuous logging when new
  subdirectories were created.

- Fix problem with RS232 handshaking line RTS on serial ports 3 and 4.

- Fix Error in Binex Antenna Offset record.  North/South offset was
  incorrectly duplicated from East/West offset.

====================================
Added in Trimble NetRS Firmware Version 1.2-5 (not publicly released)
====================================

- Add NMEA output stream capability.
- Clean up problem when displaying L2 tracking controls.