Thanks for the replies people!

I know! It seems like yesterday that she was just 9 weeks old!

I think I will probably switch her over between 9 and 12 months...

As she is a toy breed I wasn't sure if you're meant to switch them over earlier... than if you had a large breed like a Rottweiler for example... I should imgagine you change them to adult food later than 12 months as larger dogs take longer to mature fully? if that makes sense... or is that just a load of old crap that people fill your head with lol.