• lib: Fix bug that on_header callback is still called after stream is closed (GH-1331)
• third-party: Update http-parser to v2.9.1
• nghttpx: Fix bug that altered authority and path affect backend selection (GH-1334)
• nghttpx: Fix bug that chunked request stalls (GH-1333)
• nghttpx: Don't log authorization request header field value with -LINFO (GH-1332)
• nghttpx: Fix for compilation against modern LibreSSL (Patch from Jeff 'Raid' Baitis) (GH-1270)