pagerank updated every 3 months? or 4 month?

[JSDesign]

does anyone know how often pagerank get updated?
i notice that previous updates was end of april 2007.
and when will be the next one?

i see that Matt Cutts is saying: "Backlinks and PR get pushed every 3 months"
:rolleyes:

meaning end of July will be another updates?? :cool:

[rhysmeister]

3 months seems to be the time period most often quoted.

[Anaks]

i know that one is every march every year

[caroline]

they often declare its once in 3 months..