BI4.0 SP4 update to BI4.1 SP1

Hi,

We are currently on BI4.0 SP4, and decided to update to BI4.1 SP1.  According to minor release update, we can use In-Place Update or installation software for a separate machine.

We plan to go for In-Place update option. for doing In-Place update,

1. do we need to do CMS db backup, what else backup we needed, such as BI contents, user groups? how we deal with 3rd party authentication.

2. Is SSO auto configured after update. What we need to consider?

3. do we need to reconfigure SSL? or from minor release doc, while updating, we need to diable SSL, after updating to BI4.1 SP1, we just enable SSL?

is there any step to step instruction on In-Place update?

Many Thanks,

Youqin