Pega 7.1.1 supports Java 6 and Java 7 SDKs only. Ensure that the JDBC driver you are using supports those versions of Java. See your database installation or upgrade documentation for additional information.
db2jcc4.jar or jdb2jcc.jar**
* JDBC drivers are only available from the DB2 for z/OS product. Additionally, you need db2jcc_license_cisuz.jar in the same directory as db2jcc4.jar.
** The db2jcc.jar has been deprecated and may not be supported in future releases.
*** This .jar file is required for PostgreSQL version 9.1.x.
All Pega product release notes can be found on their product pages.