The Unicode conversions shouldn't cause problems if the character sets in your old language packs are defined correctly. If you were using Unicode before then those texts in that language will be skipped.
Roles and permissions
How Do I Do This?
اس بحث کو بند کر دیا گیا ہے لہذا آپ اس کا مزید جواب نہیں دے سکتے۔