Dictionaries

Is there any differences on Dictionaries from LN 8.x.x and Lotus Notes 9?
Can I use same dictionaries I was using on Lotus Notes 8.5.3?

Subject: Iberian Portuguese dictionary has been updated (updated)

Major change is made for Iberian Portuguese dictionary. Reform pt-PT dictionary is available from 9.0 beta for Windows only and for all platform in 9.0 GA.

Iberian Portuguese dictionary file available
A dictionary file for Iberian Portuguese (pt) is available for installation from the IBM Notes 9.0 Public Beta
download site.

This is available for standard client only. Existing pt-PT dictionary should be removed prior to install new dictionary.
For compatibility, dictionary needs to be upgraded to matched version. Which language dictionary do you have installed with 8.5.3?

Update: Rest of dictionaries are remained same as 8.5.3.