Where can I find the release of MS Reactive Extensions that supported ConcurrentDictionary?
<p>I understand this was removed in subsequent releases, but is there a release to be found (experimental etc. ) where ConcurrentDictionary did exist in .Net 3.5 System.Reactive?</p>

<p>its not v1.0.10621 SP1
or
v1.1.11111</p>

<p>as far as I can tell</p>

<p>Thanks</p>
