Java for Mac OS X 10.5 Update 10 delivers improved compatibility, security, and reliability by updating J2SE 5.0 to 1.5.0_30, and updating Java SE 6 to 1.6.0_26 for 64-bit capable Intel-based Macs.
J2SE 1.4.2 is no longer being updated to fix bugs or security issues and remains disabled by default in this update.
Full Specifications
What's new in version Update 10
General
ReleaseJune 28, 2011
Date AddedJune 28, 2011
VersionUpdate 10
Operating Systems
Operating SystemsMacintosh, Mac OS X 10.5 PPC, Mac OS X 10.5 Intel