I have been to Fethiye Residency Office and officers informed me about the new regulation.
Residency office started to ask all foreign country documents apostille stamped. (birth certificates, marige and divorce documents)
Before they were accepting printout and copy of pension papers.
As I informed they stopped asking for proving documents about your income on renewals. So most of applicant will not need apostilled documents.
UK citizens can get more info about apostille from official web site
https://www.gov.uk/get-document-legalised There is also private companies for apostille. (you post the document and they have it apostilled and sent back to you)
http://www.apostille.org.uk/
