Ubuntu – Who makes laptops for Ubuntu

I'd love for someone to come up with some more numbers on this, here's my little analysis:

There are around 100 bugs tagged "regression-release", that are of "High" importance. A further three are marked "critical", two of those affect a bunch of specific ThinkPad models.

• Have a look at the regression tracker, note only the ones that are tagged "regression-release".

  There are quite a lot of them, of course, but then the average bug affects only a few users (now that's a number I'd like to know). Note that pretty much all of the 'serious' bugs have to do with some specific piece of hardware, and thus wouldn't affect "well supported" hardware platforms.

• Take the time to sort this list by importance and read some of the descriptions. To me at least, many of them appear very minor, or affect only a small set of users. But I can't be the judge of that.

The likelihood of a normal user experiencing a release upgrade regression is almost impossible to estimate. The hardware platforms vary immensely.

• Note the affected packages, this will give you an indication as to the likelihood of a regression affecting your specific configuration. You'll notice many of them are filed against 'linux', and most of those are driver issues.

In my experience, everything works perfectly all the time. See how worthless that information is. ;-)

I fear that's all I've got. It's really not a problem that is discussed much, which is why I have to doubt it exists at all. People usually only investigate such things in detail, create comprehensive statistical analysis, if many users are affected; due to the way Canonical and the community test before they release, this appears to be rare.