When is it appropriate?

Alrighty ladies, here's the deal. I've been separated from my ex husband for a year and a half, officially divorced for a year.

I go on facebook maybe once every three months and I would like to update my single profile picture to me and my boyfriend. Not change any statuses or anything as my boyfriend doesn't use facebook.

My ex husbands family and close friends are amongst those in my friends list and while I really don't care what they think about my life or what I do with it now, I do not want to come off as insensitive and hurt anyone's feelings (ie. His grandmother or father).

Do you guys think a year is an appropriate amount of time to let everyone kind of process everything and for me to post pictures of my and my boyfriend?