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RE: [SOGo] Is it safe to run multiple SOGo versions in one environment?

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  • Subject: RE: [SOGo] Is it safe to run multiple SOGo versions in one environment?
  • Date: Mon, 11 Feb 2019 16:31:34 +0100
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-----Original Message-----

[mailto: ]
On Behalf Of Christian Mack"
( )
Sent: Monday, January 28, 2019 4:25 PM

Subject: Re: [SOGo] Is it safe to run multiple SOGo versions in one


Am 28.01.19 um 09:10 schrieb
> we are now running SOGo version 2 and we want to upgrade this old
> version to newest version eventually.
> But right now we need to establish new "ActiveSync only" server and I
> thought that would be easier for future me to install it with SOGo
> version 4.
> Question:
> Is it safe to install this new server with SOGo version 4 and run it in
> parallel with the old version 2 infrastructure? I mean would the new
> version make changes in the database schema that version 2 cannot work
> with or something similar.

For SOGo v4 you have to change the database schema a bit, but those
changes don't pose a problem, as it only enlarges size of some columns
and add some new ones.
New users should be created in V4 in order to get those additional
columns (that only applies for normal table layout, not the 9 table layout).

But there is a change in how exceptions in event series are handled in
V4, which are not backwards compatible with V2.
In V4 you can invite someone to an exception only, and she/he will not
know there are other instances.
Those will be invalid in V2 and not be displayable.

Kind regards,
Christian Mack

Christian Mack
Universität Konstanz
Kommunikations-, Informations-, Medienzentrum (KIM)
Abteilung Basisdienste
78457 Konstanz
+49 7531 88-4416

Thank you for valuable informations. From where I see it, I will create a lab
env and do proper testing before implementation.

Do you have some guide or best practice for migration 10000 users from SOGo
V2 to SOGo V4?

My idea was to migrate users in batches. So there will be coexistence of two

And how about users data in Dovecot server is there something changed in V4?


Patrik Chadima

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