This release has no code changes other than bumping the allowed version
for pq-sys and mysqlclient-sys. The versions released alongside 0.11
attempted to generate the bindings at compile time. This required a
bleeding edge version of clang, and caused too many issues for too many
people. The latest versions of those two libraries include pre-generated
bindings.
If you need to use bindings generated by the old version, you can
explicitly depend on that version with cargo update --precise