The release notes claim that F15 provides "Boost 1.4.6"; the correct spelling of that version is "1.46" (note, no second dot): http://docs.fedoraproject.org/en-US/Fedora/15/html/Release_Notes/sect-Release_Notes-Changes_for_Developers.html#sect-RelNotes-Developer_Tools Huh, that's only in the first paragraph; second paragraph uses "1.46" correctly.
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