v0.11.23

Bug Fixes

• server: prevent to output Transfer-encoding when server upgrade (#1465) (eb105679)

Features

• client: introduce lower-level Connection API (1207c2b6, closes #1449)
• header: add text() and text_utf8() constructors to ContentType (45cf8c57)
• server:
  • add service property to server::conn::Parts (bf7c0bbf, closes #1471)
  • add upgrade support to lower-level Connection API (#1459) (d58aa732, closes #1323)