cucm upgrade from 10.5 to 11.5 SU question

[andersonde@rowan.edu]

Hello and thanks to anyone who responds.   

We are currently using System version: 10.5.2.15900-8   (10.5.2SU5).    I'm looking to upgrade to 11.5 but have a question about which Service Update to go with.   

Documentation states what is below.  My question is can i instead go with 11.5 SU4 instead of what the docs say which is 11.5 SU2.  

Upgrade Path Restrictions for Release 11.5(x)

Upgrade and migration paths generally support the Service Updates (SU) within each path; however, there are some exceptions for specific SU releases. The table below lists the exceptions for upgrades and migrations to Cisco Unified Communications Manager Release 11.5(x).

Table 11 Restrictions to Supported Upgrade and Migration Paths, Cisco Unified Communications Manager Release 11.5(x)

From	To	Description
10.5(2)SU5	11.5(1.10000-6) through 11.5(1.120xx)	Path is unsupported. For these releases, upgrade to 11.5(1)SU2 instead.

[Jaime Valencia · Accepted solution]

Yes, SU2 is the minimum you need to upgrade to, but you can choose a higher release if desired.

[andersonde@rowan.edu]

Great thanks i was hoping that was the case.   What made me question was this forum discussion link below.  they were going from 10.5.1 SU1 to 11.5.1 SU3 and failed.  Retried with SU2 and worked.

https://supportforums.cisco.com/t5/ip-telephony/cucm-upgrade-10-5-to-cucm-11-5-failed/td-p/3191576