v0.14.12

Bug Fixes

• ffi: on_informational callback had no headers (39b6d01a)
• http1: apply header title case for consecutive dashes (#2613) (684f2fa7)
• http2: improve errors emitted by HTTP2 Upgraded stream shutdown (#2622) (be08648e)

Features

• client: expose http09 and http1 options on client::conn::Builder (#2611) (73bff4e9, closes #2461)