Node.JS - Connection:close behaviour changed between 0.8.x and 0.10.x

server.js

require('http').createServer(function(req, resp) {
    console.log('start', req.connection.remoteAddress, req.connection.remotePort);
    resp.end();
    console.log('end', req.connection.remoteAddress, req.connection.remotePort);
}).listen(5000);

test.sh

node8 --version
# v0.8.22
node8 test.js &
curl http://localhost:5000
# start 127.0.0.1 60959
# end 127.0.0.1 60959
curl http://localhost:5000 -H Connection:close
# start 127.0.0.1 60960
# end 127.0.0.1 60960

pkill node8

node10 --version
# v0.10.17
node10 test.js &
curl http://localhost:5000
# start 127.0.0.1 60961
# end 127.0.0.1 60961
curl http://localhost:5000 -H Connection:close
# start 127.0.0.1 60962
# end undefined undefined

v0.10.17 make test

/usr/bin/python tools/test.py --mode=release simple message
=== release test-debugger-client ===                                      
Path: simple/test-debugger-client
ready!
>>> new node process: 27974
>>> starting debugger session
version: 3.14.5.9
ready!
>>> new node process: 27978
>>> starting debugger session
got stderr data "debugger listening on port 13683\n"
>>> connecting...
requesting version
>>> killing node process 27974


got stderr data "debugger listening on port 13683\n"
>>> connecting...
requesting scripts
got 2 scripts
>>> killing node process 27978


got stderr data "debugger listening on port 13683\n"
>>> connecting...

events.js:72
        throw er; // Unhandled 'error' event
              ^
Error: connect ECONNREFUSED
    at errnoException (net.js:901:11)
    at Object.afterConnect [as oncomplete] (net.js:892:19)
Command: out/Release/node /home/jhowe/build/node/test/simple/test-debugger-client.js
=== release test-debugger-repl ===                     
Path: simple/test-debugger-repl
< debugger listening on port 13683
connecting... ok
./node debug --port=13683 /home/jhowe/build/node/test/fixtures/breakpoints.js
dying badly buffer="debug> "
child is closed
UncaughtException [Error: Timeout. Expected: /break in .*:1/] Error: Timeout. Expected: /break in .*:1/
    at ChildProcess.<anonymous> (/home/jhowe/build/node/test/simple/helper-debugger-repl.js:89:13)
    at ChildProcess.EventEmitter.emit (events.js:117:20)
    at maybeClose (child_process.js:735:16)
    at Process.ChildProcess._handle.onexit (child_process.js:802:5)
Error: Timeout. Expected: /break in .*:1/
process exit 1
Command: out/Release/node /home/jhowe/build/node/test/simple/test-debugger-repl.js
=== release test-http-curl-chunk-problem ===                                   
Path: simple/test-http-curl-chunk-problem
dd command:  dd if=/dev/zero of="/home/jhowe/build/node/test/tmp/big" bs=1024 count=10240
Server running at http://localhost:8080
making curl request
assert.js:92
  throw new assert.AssertionError({
        ^
AssertionError: "8c206a1a87599f532ce68675536f0b1546900d7a" == "2f63dc5f0238c054241f0f61aecd2f8fc39c84ff"
    at /home/jhowe/build/node/test/simple/test-http-curl-chunk-problem.js:44:12
    at ChildProcess.exithandler (child_process.js:635:7)
    at ChildProcess.EventEmitter.emit (events.js:98:17)
    at maybeClose (child_process.js:735:16)
    at Process.ChildProcess._handle.onexit (child_process.js:802:5)
Command: out/Release/node /home/jhowe/build/node/test/simple/test-http-curl-chunk-problem.js
=== release test-http-dns-error ===                                 
Path: simple/test-http-dns-error
assert.js:92
  throw new assert.AssertionError({
        ^
AssertionError: "EADDRINFO" == "ENOTFOUND"
    at ClientRequest.<anonymous> (/home/jhowe/build/node/test/simple/test-http-dns-error.js:49:12)
    at ClientRequest.EventEmitter.emit (events.js:95:17)
    at CleartextStream.socketErrorListener (http.js:1548:9)
    at CleartextStream.EventEmitter.emit (events.js:95:17)
    at Socket.onerror (tls.js:1432:17)
    at Socket.EventEmitter.emit (events.js:117:20)
    at net.js:830:16
    at process._tickCallback (node.js:415:13)
Command: out/Release/node /home/jhowe/build/node/test/simple/test-http-dns-error.js
=== release test-net-dns-error ===                                             
Path: simple/test-net-dns-error
assert.js:92
  throw new assert.AssertionError({
        ^
AssertionError: "EADDRINFO" == "ENOTFOUND"
    at Socket.<anonymous> (/home/jhowe/build/node/test/simple/test-net-dns-error.js:43:10)
    at Socket.EventEmitter.emit (events.js:95:17)
    at net.js:830:16
    at process._tickCallback (node.js:415:13)
Command: out/Release/node /home/jhowe/build/node/test/simple/test-net-dns-error.js
[01:57|% 100|+ 592|-   5]: Done                                                
make: *** [test] Error 1