Apple has officially released a new Java client, specifically tailored to Mac OS X 10.4. Release 6 requires that a Mac be updated to Mac OS X 10.4.10, specifically, and is an 80MB download. The update is said to improve "reliability and compatibility" for Java SE 5.0 and Java 1.4; the former shifts to v1.5.0_13, while Java 1.4 has been patched to