When was OPENSTEP/Mach 4.2 first released?

Was it June 1997?

'hostinfo' shows Jan 1999 which I suppose is because I installed Patch 4..

openstep:/Users/ff >hostinfo
Mach kernel version:
        NeXT Mach 4.2: Tue Jan 26 11:21:50 PST 1999; root(rcbuilder):Objects/mk-183.34.4.obj~2/RELEASE_I386

Kernel configured for a single processor only.
1 processor is physically available.
Processor type: I386 (Intel 486)
Processor active: 0
Primary memory available: 192.00 megabytes.
Default processor set: 55 tasks, 130 threads, 1 processors
Load average: 0.39, Mach factor: 0.62

I believe January 1997 (http://www.rhapsodyos.org/misc/rhap_timeline/Rhapsody_Timeline_1.html).

I think it OPENSTEP Mach 4.2 upgrade was released sometime between late May and early June 1997...


May 30 1997- not yet avail, prerelease..

http://groups.google.com/group/comp.sys.next.programmer/browse_thread/thread/c023a091ec67998c/54383dac69cd2919?hl=en&lnk=st&q=openstep+4.2#54383dac69cd2919

June 5 1997 - avail from blackhole

http://groups.google.com/group/comp.sys.next.marketplace/browse_thread/thread/ab04b948d5cf2b20/56966a9b6523e374?hl=en&lnk=st&q=openstep+4.2#56966a9b6523e374

Jul 8 1997 - a dude just purchased it so it's definately avail
http://groups.google.com/group/comp.sys.next.misc/browse_thread/thread/33a7c94aee2c7b39/fd5028df4bd0dff7?hl=en&lnk=st&q=openstep+4.2#fd5028df4bd0dff7

Maybe that is right... I was stuck at 4.1 for a long time.

But I knew people who had 4.2 before WWDC97 (but they were working closely with Apple) which was in early May. Plus "Prelude to Rhapsody" was handed out to some developers at WWDC97 (and shipped to others in July), and that was 4.2.