java - JRE 7 JVM updates and optimizations -

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do know how oracle things under hood, e.g. jvm performance optimizations don't end in official java update release notes?

if don't mention every nook , cranny changed in jvm each update, 1 find such exhaustive list?

i wondering since there trying justify upgrading java 7 update 7 latest update , rest of programming team vary of upgrade (we're running single-user desktop app jre don't think security fixes overly important us).

edit: since old http://bugs.sun.com down quite time, i'd ventured searching similar , have stumbled upon seems exhaustive issue list when comes jdk - it's hosted on openjdk jira; future reference, here link jdk 7: https://bugs.openjdk.java.net/browse/jdk#selectedtab=com.atlassian.jira.plugin.system.project%3achangelog-panel

from experience switching application 1.5, 1.6 1.7 on years can find of in update release notes not clear input changes have performance or heap space. notice increased heap space in java 1.6 updates without changes our software or hint in release notes. overall recommend update newest versions, because not security issues fixed there improvements garbage collection , not fight against strange old bugs fixed oracle.

but in end idea performance tests own when updating java if performance or heap space important users of application.

update:

some releases have complete list of bug fixes done. example release notes java 7 update 6 has link jdk 7u6 bug fixes. bug database of java can found @ this not search or user friendly.


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