No set time, but certainly if she changes her look, like long hair to short, or has significant weight-loss or weight-gain.
And, Akiya, U look GR8, no matter how often U update!

or when something has changed.  New hair colour, different cut, a material change.
And Akiya, I'm looking forward to the next book review

New photos should be posted with some regularity. Obviously, as others have said, if certain things change then new photos should be posted right away but I also think they should be updated occasionally anyway. I know egos will often lead people to claim that they look virtually the same even years after a photo was taken and personally I say that's BS mostly. I know guys who boast they weigh the same as in high school, where they graduated twenty years ago, and while that may be true they sure as hell don't look the same!
   I keep a list in the back of my head of women I wish to spend time with when the opportunity presents itself. New ones are added all the time....lol I occasionally will peruse their websites. In some cases I've been seeing the exact same photos for many years and can't help but wonder just how accurate they are any more. With the ability to greatly manipulate photos anyway, if said photos are years old then I tend to take the lady off my bucket list. Just as I look with suspicion upon photos taken by certain pro shooters who remove every single skin blemish making a woman's skin look flawless. I also appreciate how some women handle tatts. I'm thinking about those such as Tobi Telford et al. While understanding why many will have them removed in photos, for id purposes, I appreciate when they mention on their website that they have them and how extensive they are.  
  I've had discussions with women friends about this issue and the most common reason for old photos given me is the cost of doing a professional shoot. My answer to that is that it should be considered a normal business expense and secondly, if it's really an economic hardship then add updated non-professional photos to the mix. Personally, I prefer a mix of candid and professional photos. I believe it's the best way to convince me the lady will look the way I expect when I walk thru her door.
                                                                                                                              Regards....RR

Dave you made a good point.  The lady really has to decide for herself, when her pictures has to be updated.  

I agree with your assessment rio.  As we all know men are visually stimulated animals, so it would seem that from a marketing perspective it would make sense to have a tasteful and current selection of photos.  I also like to see candid photos as they offer some insight into the person beyond what a professionally staged photo can offer.

If you have a fantastic picture(s), only if it no longer represents you, or if you have a much better pix.

Even when I went from long hair to short hair and back to long hair. Fortunately my weight never changed, otherwise I'm sure I would have gotten some doors shut in my face lol.

and I'm looking forward to actually reading a book soon. That's my first love: reading. I've been so neglectful :/

I should change my pics but all I have are selfies.

There is absolutely nothing wrong with selfies. They give you a chance to show off your personality. I just can't picture you as a blonde so would love to see some new pics.  
JC

How would you feel if you were looking for say a house, and the pics were 3 years old?    

YOU LOOK AMAZING love the new photos you are a goddess!
xoxo  Alexia

Wonder if she likes guys with mustaches!!

Sure...as long as it doesn't look like this