Pylons 1.0 has been in maintenance mode already (effectively), 1.0 was in fact nothing more than a few tweaks on 0.9.7, ie. maintenance release with a 1.0 version number and finally killing a few deprecated things.
The FAQ explains why when attempting to extend Pylons for new functionality, I hit a dead-end: http://docs.pylonshq.com/faq/pylonsproject.html#why-not-just...
Finding a path forward for extensibility that didn't hit this forking problem: http://lincolnloop.com/blog/2008/apr/4/reusable-django-apps-...
was a very major concern of mine. I think this will address that, and when Django makes the changes necessary to remove the forking problem I won't be at all surprised if it requires porting your apps...
This also means that no one installing the 'pylons' package will have to worry about someday installing a version that deprecated things their old pylons app needed. Using pyramid means that you can use the new, along with the old one, at the same time, without worrying about version conflicts in the package.
Pylons' change to Pyramid most certainly does not replace that whole stack. It replaces exactly two of those components, the view/controller paradigm and central app configuration. All the things that don't change at all are: templating, ORM, routing, Paste/Pastescript, caching/sessions still on Beaker.
So this nothing at all like moving to an entirely new framework, Mako/SQLAlchemy/Beaker aren't going anywhere.
edit: the routing changes a bit, but its an improved and higher performing package with mostly complete feature parity. I'm looking forward to using it.
(and you know this)
Ughh... The lesson for the future: when it comes to tech, stick with the leader. I didn't go Django route because it felt clunky and bloated compared to more elegant and flexible Pylons, but I guess it was a huge mistake. Pylons decided to "collapse" itself in favor of even more (!) elegance (like someone needed that), and a year worth of work is now based on something "in maintenance mode", while Django is still around.
Tip: looking for a Python web framework? Django. Why? It will be there tomorrow.