Hi, I saw the news about the Rhino 1.7.7.1 upgrade. So I can understand what changed, what is the previous (current) version of Rhino used?

It is updated already? I tried a few new things of ecma6 but they didnt work so I assume it has not been updated yet?

Rhino doesn't support ECMA6 in full.

From my coworker:

Jeff Amiel

You can use this: https://kangax.github.io/compat-table/es6/

and be sure to check "Show obsolete platforms" (ugh)