tor/changes/threads-required

  o Removed features:
    - Tor no longer supports systems without threading support.
      When we began working on Tor, there were several systems that didn't
      have threads, or where the thread support wasn't able to run the
      threads of a single process on multiple CPUs. That no longer holds:
      every system where Tor needs to run well now has threading support.
      Resolves ticket 12439.

  o Minor features:
    - Threads are no longer disabled by default on Solaris; we believe that
      the versions of Solaris with broken threading support are all obsolete
      by now. Resolves ticket 9495.
Thread support is now required Long ago we supported systems where there was no support for threads, or where the threading library was broken. We shouldn't have do that any more: on every OS that matters, threads exist, and the OS supports running threads across multiple CPUs. This resolves tickets 9495 and 12439. It's a prerequisite to making our workqueue code work better, since sensible workqueue implementations don't split across multiple processes. 2014-06-20 16:20:10 +02:00			`o Removed features:`
			`- Tor no longer supports systems without threading support.`
			`When we began working on Tor, there were several systems that didn't`
			`have threads, or where the thread support wasn't able to run the`
			`threads of a single process on multiple CPUs. That no longer holds:`
			`every system where Tor needs to run well now has threading support.`
			`Resolves ticket 12439.`

			`o Minor features:`
			`- Threads are no longer disabled by default on Solaris; we believe that`
			`the versions of Solaris with broken threading support are all obsolete`
			`by now. Resolves ticket 9495.`