 node from a topology.</li></ul></section><section id="release-2-1-0_breaks_and_deprecated_features"><h2><a href="#release-2-1-0_breaks_and_deprecated_features">Breaks and Deprecated Features</a></h2><ul><li><a href="classtf_1_1FlowBuilder.html#a60d7a666cab71ecfa3010b2efb0d6b57" class="m-doc">tf::<wbr />Taskflow::<wbr />emplace</a> is now merged with tf::Taskflow::silent_emplace (both are the same) and no longer returns <a href="http://en.cppreference.com/w/cpp/thread/future.html" class="m-doc-external">std