I'd recommend Trac (trac.edgewall.org). It's pretty configurable with basic milestone tracking and a wiki (and people have written addons, etc.). It also integrates with Subversion.
I'll cast my vote for Redmine as well. It is a great improvement on Trac, keeping all the nice features - code repository integration with git, svn etc.; wiki, milestones, tickets; plus multiple projects (public/private) with flexible access rights.
I also recommend TRAC. And I recommend my ISP too - WebFaction - which gives you integrated SVN/TRAC out of the box, along with any database or programming language you need. A small slice costs $9.50/month.
We use DevGuard for SVN/Trac hosting. They start at $6.95/month. I'm surprised Trac is the YC top-rated tool for project management tho; they don't have anything I would call a "project management". It's a basic bug tracking system.
FYI, Trac floated to the top when i asked this same question a few months ago:
Trac looks very solid. Curious. I'm starting a project soon and want the following functionality in the software that we use:
I want it to (a) track bug issues, (b) track milestones and a roadmap, (c) allow us to upload code to keep track of each of our changes to the code, and (d) give us a (login-restricted) wiki and/or forum so we can document the discussions/ideas we have.
I'll take a look at Trac in more detail later tonight, but if anybody knows off the top of your head if Trac (or some other software) does the things I mentioned above, let me know!
Yes; I should have mentioned, it has bug tracking (tickets) too.
The wiki not only works for arbitrary documents, but it's pretty well integrated elsewhere. For example, a ticket submitted to Trac can use wiki syntax. The tickets can also refer to Subversion revision numbers.
As an Apache server it can be authenticated in the usual ways.
I would like to second the recommendation of Trac. My only complaint (and a minor one at that) is that it's not intended for more than one project at a time. But it still beats the snot out of the competition for the exact requirements you just listed.
