<tt>CreateFNeg</tt> should now be used for floating-point arithmetic.</li>
<li>The DynamicLibrary class can no longer be constructed, its functionality has
moved to static member functions.</li>
+<li><tt>raw_fd_ostream</tt>'s constructor for opening a given filename now
+ takes an extra <tt>Force</tt> argument. If <tt>Force</tt> is set to
+ <tt>false</tt>, an error will be reported if a file with the given name
+ already exists. If <tt>Force</tt> is set to <tt>true</tt>, the file will
+ be silently truncated (which is the behavior before this flag was
+ added).</li>
</ul>
</div>