Trimble PivotTM Platform, version 2.5.4
This patch for Trimble Pivot Platform contains all changes since version 2.5.0. The following document gives you an overview about the changes. 
FrameTransformations.txt
In previous versions the selected tectonic plate has not been taken into account in internal  transformations explicitly for the following Reference Frames: 
NAD83, NAD83-CSRS, NAD83-CORS96. 
Now a transformation is used which takes the tectonic plate into account. This means for stations with a selected tectonic plate 'None', either the plate 'North America' needs to be selected or the velocities of the Tectonic Plate need to be provided manually to keep consistent processing of the appropriate station.

RTO module
Physical Base Station coordinate in ITRF current epoch
The RTO property grid allows now for customers to en- or disable the proprietary output of RTCM message 4094. This message contains the Physical Base Station (PBS) coordinate in ITRF current epoch. 
Health Status handling
The RTO Net module can now be linked to the corresponding Network Processor. The Processor health status information is now available to the RTO Net module which allows ensuring that users are only connected to fully healthy RTO modules.

FTPMirror module
Improved speed for remote directory file scanning by focusing only on directories which are true destinations for upload candidates. 

Storage module
TGD file generation may have been inconsistent in previous versions. This has been resolved.

GNSS Receiver module
If the receiver serial number and/or version number is not available through the decoder the system will automatically fallback using the serial/version number from the station list. This station list may contain these receiver details if imported from IGS site logs. 

Ntrip Caster
In previous versions an incoming NMEA string without position information lead to the rejection of the entire connection attempt when connecting to an RTO module with defined regions. This has been improved as the Ntrip Caster module is now waiting until it receives a valid – including position information – NMEA string.

Trimble PivotTM Platform, version 2.5.3
DiskWatch and FTPMirror module
Both modules, DiskWatch and FTPMirror, may have stopped their repeated operation in previous versions. This has been resolved.

RTO module  
In previous versions an incoming GLGGA (Glonass only) was not recognized by the RTO module which may have impacted the generation of a Network Modeled correction stream. The RTO module has been enhanced to support either a GPGGA (GPS only) and/or a GLGGA NMEA string.

Google Maps API update
Pivot platform was updated to support Google Maps API version 3. Google has announced to no longer support the legacy Google Maps API version 2 as of May 19, 2013. 

Accounting Database
An additional table (ConcurrentSessions) was added to the Accounting DB in order to improve the handling of multiple logins according to the Contracts.xml configuration regardless if operating in a Distributed-, Single Server- or “Load Balanced”-Environment using a common accounting database.

Trimble PivotTM Platform, version 2.5.2
GNSS receiver module
Pivot 2.1 offered CMRx as input decoder type within the GNSS receiver module. By  accident, this functionality did not show up in Pivot 2.5. The input decoder type CMRx for NetR5, NetR8 and NetR9 is now available again.

RTO module – 
LLI handling in CMR+ data streams
The LLI (Loss of Lock Indicator) did not increase while switching a master station within a VRS data stream. The RTO module has been improved to now provide correct LLI handling for moving rovers using CMR+ correction data.
NMEA strings from GSM connections
RTO module has been improved to correctly read NMEA strings submitted during a GSM dial in connection, even if this information is submitted in multiple data packages.

Trimble PivotTM Platform, version 2.5.1
DBServer improvement in redundant setup
When two active sessions in a redundant system with two DBServers accessing a common accounting data base are ended simultaneously, it can happen that one session remains open until the respective DBServer can be restarted. This may result in incorrect end time. The end session handling for redundant systems has now been improved to avoid such behavior.

iGate module
The iGate module has been improved to better handle the communication to office software products like Trimble Business Center and Trimble Pathfinder Office software in case of a slow connection between the office computer and the server system.