Version of jtreg to use for testing of specific JDK 8u-dev releases?

[Srinivas Ramakrishna]

Hello all --

What's the version iof jtreg to use for JDK 8u testing?
I am seeing two failures in HotSpot regression tests that appear to be
because of using a somewhat older version of jtreg and wanted to
check if there's any way to tell what the correct vintage of jtreg
recommended
for testing specific jdk8u releases?

Would it be safe to always get the latest jtreg for testing at any time, or
are there
tagged builds of jtreeg suitable for specific versions of jdk8u-dev testing?

thanks for any pointers!
-- ramki