[jluxenberg]

Buried in the release notes is this gem: reflection via ClassTags wasn't (and still isn't) threadsafe in 2.10; this has been fixed in 2.11 (see http://docs.scala-lang.org/overviews/reflection/thread-safet...)

[eugene_burmako]

ClassTags were always thread-safe - they are simple wrappers over j.l.Class. TypeTags however were not, and that's supposed to be fixed in 2.11.0.

[lmm]

Great to hear that's been fixed - I saw an issue that was a manifestation of this, and in particular it made akka's experimental typed actors entirely unusable for my case.