I hope this question is not regarded as a duplicate of Does someone know why the Chromium daily package isn't build anymore? because that question relates to daily builds and not to "stable" Chromium available from the Software Center.

So what are the technical difficulties that the Chromium team is facing? A very similar question has been asked in Default Browser Follow-up. I would very much to have an updated Chromium stable on my system.

Also, is the problem of building Chromium restricted to 32-bit versions? (I have a 64-bit CPU but just 4 GB RAM and so I'm staying with 32-bit all the way.)

^{I'm asking this partly in the light of the discussions, here for example, about having Chromium as the default web browser in future releases.}