This service pack is available starting April 4.
The following revisions or enhancements were made for this service pack:
File Compression Changes
Modified Build Date
Load Case Editor Revisions
Statics Revisions
Dynamics Module Revisions
Piping Input and User Interface Revisions
Output and Export Revisions
Input Graphics Revisions
External Interfaces Revisions
PCF and APCF Interfaces Revisions
ISOGEN Generation Revisions
Soil Modeler Revisions
Equipment Module Revisions
WRC Module Revisions

See the whats new attached PDF for more detailed information.
htis can also be found in the build.txt file installed with the CAESAR II, which you can access by selecting
Help>On Line Documentation>Build.txt from the main menu.