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prominently. Unlike in the past (dating back to the 4.x branch point), you cannot upgrade from any point on the past couple of stable branches to -current. Due to a bug in clang that existed before r286035 in stable/9 or r286033 in stable/10, we cannot compile llvm that's in 11.x or -current. Unfortunately, these revisions are after 9.3R and 10.3R on their respective branches. stable/11 and 11.0R are not affected. This also affects the upgrade path to 11 (including 11.0R) from stable/9 and stable/10 (which would otherwise work, were it not for this bug). We also need to amend the 11.0R release notes. MFC After: 3 days
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