Smartupgrade localization does'nt work

Be aware that Smartupgrade localization does’nt work.

IBM/Lotus Support have just informed me that I’m unable to upgrade my clients in a mixed client language environment with different Smartupgrade kits as described in the Redbook “Understanding Lotus Notes Smart Upgrade”.

I have a mix of UK and DA Notes clients and i have to know which users runs which client language and assign these users to the “Allowed Users & Servers” readers field.