[Koha] Data Migration from Koha 2.2.9 to 3.6

I have been using KOHA 2.2.9 (windows). However, I am determined to install 3.6 on Linux. Is it posible to migrate data to this new version. Thats my major concern. Please help. -- Felix Chisoni (College Librarian) St Luke's College of Nursing & Midwifery P. O. Box, 21 Chilema Zomba Cell :+265 0992255406 Email : felixchisoni@gmail.com