No updation of Links by Google

I have built several quality links for my website during January. But in Google Webmasters, they have updated only till December.

Would it update late. But it says, last updated on January 26.

Request replies.

Thanks in advance.

Google does not identify all links it is aware of. It is only a summary.

But my worry is that it says ā€œlast found the link on December 21ā€ though the link is available right now also. And the links created after December '09 were not updated. I feel it is strange. It has not happened to me before.

Will there be any specific reason.