[Samba] Q: Upgrading samba from 4.9 to 4.13

[Robert Marcano]

On 10/22/20 9:30 AM, Marco Shmerykowsky via samba wrote:
> I've been looking at the Sambawiki for notes on upgrading
> (https://wiki.samba.org/index.php/Upgrading_a_Samba_AD_DC)
> 
> The way I read it it is suggested to uninstall samba
> completely and then essentially re-installing.  That seems
> like a Murphy's Law disaster (with my luck) waiting to
> happen.
> 
> Is "upgrading "in-place" a realistic option?
> 

I have been upgrading multiple domains since 4.8 without problems, the 
difference here is that I have done it incrementally and not in a single 
step. I upgrade to the latest 4.x release when 4.x+1.0 is released.

I think the developers are very careful to not break in place upgrades, 
but I don't think there is some kind of testing infrastructure to test 
single step upgrades from all older releases, I maybe wrong. You can try 
with a dump of your domain on a testing environment and report if you 
have problems.