[SR-Users] Upgrade from 4.4 to 5.1

[Daniel Tryba]

On Mon, Aug 13, 2018 at 10:52:59AM +0000, Nicolas Breuer wrote:
> I want to upgrade my both Kamailio from 4.4 to 5.1
> I have to upgrade the SQL structure before running the 5.1 release.
> 
> But my SQL servers are synchronized - Kamailio 4.4 can works with the 5.1 SQL structure ?

If there are no version breaking changes between 4.4 and 5.1 (depends on
the modules used, for me there were no breaking changes), you can use
the version_table directive in the config to point to an other table
that stores the version fields, e.g.
version_table="version44"

Set this directive in the 4.4.x machines. Update the tables/config according to 
https://www.kamailio.org/wiki/install/upgrade/4.4.x-to-5.0.0
and
https://www.kamailio.org/wiki/install/upgrade/5.0.x-to-5.1.0
On the upgrade 5.1.x remove the directive and if you did everything
correctly it should work (tm)/I worked for me (tm).

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