Today We updated nghttp2 to support latest HTTP/2 draft, h2-14. The source code is available on github. This server is advertize h2-14 now.

Here is a quick summary of the changes since h2-13:

• Frame length field was expanded to 24 bits.
• The pseudo headers (aka, colon (:) headers) handling is tightened up. Now unexpected pseudo headers are subject to stream error.
• WINDOW_UPDATE with 0 window-size is now treated as error.
• END_SEGMENT flag was removed.
• SETTINGS_MAX_FRAME_SIZE and SETTINGS_MAX_HEADER_LIST_SIZE were added.
• 1xx status codes, except for 101, are now supported.
• Removed 0x00 concatenation rule.
• HPACK: reference set was removed.
• HPACK: static header table is now in front of dynamic header table.
• HPACK: No copy when static header table entry is referenced.