In Rake 0.9.1 the global API is back, but with warnings this time.
The rake 0.9 beta was out for months, so I am surprised that something as high profile as rails got broken. While framework maintainers are ultimately responsible for their own stuff, the rake maintainer could have pro-actively made an announcement to the effect of "Hey, look out!"
In an ideal world, a continuous integration thingamabob would have sent an alert to rails maintainers about the breakage with the rake beta.
You can recover some credibility if you can tell us specifically which minor upgrades caused breakage. You'll have to list a bunch of them in order to support the "regularly cause breakage" claim.
However I'm certain you won't be able to do that. Go troll somewhere else, please.
That would spoil the fun of make sweeping generalizations about thousands of people based on the behavior of a few.
Strike my "0.8.7 to 0.9.0" rationale.
Rake is currently hosted at github. The github web page is http://github.com/jimweirich/rake/