I just bought Lr5 and opened an old catalogue created with the 3.6 version. Lr asked me whether I wanted to update the catalogue to the newest version but I thought I could just search for information first and do it later. I turns out, now I can't see that option again, therefore, my old catalogue is missing some of the sliders and options only Lr5 offers. I've looked through forums and documentation, but I cannot see where to make that update manually, because Lr won't ask me again when I open that catalogue. Could you please help me and try to update my catalogue? Thank you so much in advance.