path: root/doc/src/guide/migrating_from_2.2.asciidoc
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Diffstat (limited to 'doc/src/guide/migrating_from_2.2.asciidoc')
1 files changed, 41 insertions, 8 deletions
diff --git a/doc/src/guide/migrating_from_2.2.asciidoc b/doc/src/guide/migrating_from_2.2.asciidoc
index f0b995b..dacf790 100644
--- a/doc/src/guide/migrating_from_2.2.asciidoc
+++ b/doc/src/guide/migrating_from_2.2.asciidoc
@@ -1,15 +1,48 @@
-== Changes since Cowboy 2.2
+== Migrating from Cowboy 2.2 to 2.3
-The following patch versions were released since Cowboy 2.2:
+Cowboy 2.3 focused on making the Cowboy processes behave
+properly according to OTP principles. This version is a
+very good milestone toward that goal and most of everything
+should now work. Release upgrades and a few details will
+be improved in future versions.
-=== Cowboy 2.2.2
+=== Features added
-* While fixing the miscount in the previous patch release an
- issue was introduced where HTTP/2 bodies could be sent out
- of orders when using iolists. This has been corrected.
+* Add support for all functions from the module `sys`. Note
+ that Cowboy currently does not implement the `sys` debugging
+ mechanisms as tracing is recommended instead.
-=== Cowboy 2.2.1
+* Add a `max_frame_size` option for Websocket handlers
+ to close the connection when the client attempts to
+ send a frame that's too large. It currently defaults
+ to `infinity` to avoid breaking existing code but will
+ be changed in a future version.
+* Update Cowlib to 2.2.1.
+* Add support for the 308 status code and a test suite
+ for RFC7538 where it is defined.
+=== Bugs fixed
+* Ensure timeout options accept the value `infinity` as
+ documented.
+* Properly reject HTTP/2 requests with an invalid content-length
+ header instead of simply crashing.
+* When switching from HTTP/1.1 to Websocket or user protocols
+ all the messages in the mailbox were flushed. Only messages
+ specific to `cowboy_http` should now be flushed.
+* Parsing of the x-forwarded-for header has been corrected.
+ It now supports IPv6 addresses both with and without port.
+* Websocket subprotocol tokens are now parsed in a case
+ insensitive manner, according to the spec.
+* Cookies without values are now allowed. For example `Cookie: foo`.
* Colons are now allowed within path segments in routes provided
to `cowboy_router:compile/1` as long as they are not the first
@@ -19,5 +52,5 @@ The following patch versions were released since Cowboy 2.2:
crash when no response header was set before calling it.
* A miscount of the output HTTP/2 flow control window has been
- fixed. It prevented sending the response body fully with some
+ fixed. It prevented sending the response body fully to some
clients. The issue only affected response bodies sent as iolists.