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question asked: Jan 17 '13, 3:09 p.m.
question was seen: 5,280 times
last updated: Jan 21 '13, 3:33 a.m.

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Is JBE v3 compatible with CLM v4.0.1

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M Kevin McHugh (15●5●7) | asked Jan 17 '13, 3:09 p.m.
I see references to "clients" being compatible at N-1 levels.  I think this would include the JBE.  But, I want to confirm that.

May I run version 3 JBE's against RTC at version 4.0.1?

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Rosa Naranjo (2.9k●1●15●23) | answered Jan 20 '13, 10:24 p.m.
FORUM MODERATOR / JAZZ DEVELOPER
edited Jan 20 '13, 10:24 p.m.
Kevin

We track information about compatibility such as JBE in the spreadsheet attached to this workitem:  Confirm supported paths for upgrading to CLM 2012 fixpacks, mod packs and CLM 2013 (218962)
M Kevin McHugh selected this answer as the correct answer
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M Kevin McHugh commented Jan 20 '13, 10:33 p.m.

If I read it correctly, the answer is yes.  The N and N-1 principle holds for the JBE.

Thank you,
Kevin

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Ralph Schoon (62.7k●3●36●43) | answered Jan 20 '13, 4:55 a.m.
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 I remember that I saw a statement, that you have to update the JBE to a matching version. If you have older servers still, you can keep the older JBEs running against them and have a parallel install of JBEs running against the newer server.


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M Kevin McHugh commented Jan 20 '13, 9:23 p.m.

Ralph - do you remember where you saw that statement?

I am fairly sure you are correct.  I just want to nail it down.

Thank you,
Kevin

Ralph Schoon commented Jan 21 '13, 3:33 a.m.
FORUM ADMINISTRATOR / FORUM MODERATOR / JAZZ DEVELOPER

Unfortunately I can't find it. I remember we had a similar discussion in this forum. Rosa is right with N-1 compatibility.

So I should reword my statement a bit: I think it is strongly suggested to upgrade the JBE's to the version of the server, as N-1 compatibility might allow the client to work, there might be newer features that it will not support.

N-1 compatibility removes the immediate urge to upgrade all clients, especially the user clients and makes upgrading easier. However, you typically have only a few JBE's and it should be easy enough to provide JBE's with a version matching the server. As noted above, you can keep the JBE's running against servers that are not yet upgrades and introduce new JBE's for the upgraded ones easily enough.

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