CHANGES (p.http-lwt-client.0.2.6.doc.CHANGES)

In HTTP/2, always lowercase the header keys (#19 by @ScoreUnder, fixes #7 by @kit-ty-kate)

API: In the body function passed to request, the response is the first argument. This allows a client to do different stuff with the body, depending on the response code (and/or content type etc.) (#15 by @hannesm, reviewed and suggested by @reynir in https://git.robur.coop/robur/http-mirage-client/pulls/2)

Add function "request", remove "one_request". The response body is a stream now to support responses where the body exceeds the memory (or maximum string length) (#14 @kit-ty-kate)
BUGFIX hurl had "input" and "output" switched (#14 @hannesm)

use Status.is_redirection instead of a match on the polymorphic variant, to support unknown 3xx codes (such as 308) (#11 @hannesm)
add some yield in the main loop to allow concurrency with other fibers (issue #12 by @kit-ty-kate, fixed in #13 by @dinosaure)
hurl: add a no-follow flag (@hannesm)

Add ?tls_config to Http_lwt_client.one_request to enable passing an entire TLS configuration
Avoid exception in resolve_location
Add ?happy_eyeballs to Http_lwt_client.one_request to allow reusing this state across requests
Initialize Ca_certs.authenticator only once (lazily) to avoid decoding trust anchors multiple times
Fix Http_lwt_unix.Buffer for resizing on put (to avoid errors with H2)
Avoid exceptions from Lwt.wakeup_later by calling it at most once