code review 4213044: release.2011-02-24

doc/devel/release.html

 <!-- Release History -->
 
 <h2 id="Releases">Release History</h2>
 
 <p>This page summarizes the changes between tagged releases of Go.
 For full details, see the <a href="http://code.google.com/p/go/source/list">Mercurial change log</a>.</p>
 
+<h3 id="2011-02-24">2011-02-24</h3>
+
+<pre>
+This release includes changes to the http package and a small language change.
+Your code will require changes if it manipulates http Headers or omits the
+condition in if statements.
+
+The new http.Header type replaces map[string]string in the Header and Trailer
+fields of http.Request and http.Response.
+A Header value can be manipulated via its Get, Set, Add, and Del methods.
+See http://golang.org/pkg/http/#Header
+
+The condition is now mandatory in if statements.
+Previously it would default to true, as in switch and for statements.
+This code is now illegal:
+        if x := foo(); {
+                // code that is always executed
+        }
+The same effect can be achieved like this:
+        if x := foo(); true {
+                // code
+        }
+Or, in a simpler form:
+        {
+                x := foo()
+                // code
+        }
+
+Other changes:
+* 6l: new -Hwindowsgui flag allows to build windows gui pe (thanks Alex Brainman),
+        pe fixes (thanks Wei Guangjing).
+* 8l, 6l: allow for more os threads to be created on Windows (thanks Alex Brainman),
+* build: reduce the use of subshells in recursive make, and
+        remove unused NaCl conditional from make.bash (thanks Dave Cheney).
+* codereview: fix clpatch with empty diffs (thanks Gustavo Niemeyer).
+* compress/bzip2: add package.
+* compress/lzw: implement a decoder.
+* crypto/openpgp: add package.
+* crypto/rand: add read buffer to speed up small requests (thanks Albert Strasheim).
+* crypto/rsa: left-pad OAEP results when needed.
+* crypto/tls: make protocol negotiation failure fatal.
+* fmt: stop giving characters to the Scan method of Scanner when we hit a newline in Scanln.
+* gc: interface error message fixes,
+        make string const comparison unsigned (thanks Jeff R. Allen).
+* go spec: minor clarification on channel types.
+* go/ast, parser: condition in if statement is mandatory.
+* gob: compute information about a user's type once.
+        protect against pure recursive types.
+* godoc: accept symbolic links as path names provided to -path,
+        add robots.txt, log errors when reading filter files.
+* html: tokenize HTML comments.
+* http: add proxy support (thanks Yasuhiro Matsumoto),
+        implement with net/textproto (thanks Petar Maymounkov),
+        send full URL in proxy requests,
+        introduce start of Client and ClientTransport.
+* image/png: support for more formats (thanks Mikael Tillenius).
+* json: only use alphanumeric tags,
+        use base64 to encode []byte (thanks Roger Peppe).
+* ld: detect stack overflow due to NOSPLIT, drop rpath, support weak symbols.
+* misc/dashboard/builder: talk to hg with utf-8 encoding.
+* misc/dashboard: notify golang-dev on build failure.
+* net: *netFD.Read to return os.EOF on eof under windows (thanks Alex Brainman),
+        add IPv4 multicast to UDPConn (thanks Dave Cheney),
+        more accurate IPv4-in-IPv6 API test (thanks Mikio Hara),
+        reject invalid net:proto network names (thanks Olivier Antoine).
+* netchan: allow use of arbitrary connections (thanks Roger Peppe).
+* os: add ENODATA and ENOTCONN (thanks Albert Strasheim).
+* reflect: add a couple of sentences explaining how Methods operate,
+        add a secret method to ArrayOrSliceType to ensure it’s only implemented by arrays and slices,
+        add pointer word to CommonType (placeholder for future work).
+* runtime-gdb.py: gdb pretty printer for go strings properly handles length.
+* runtime: various bug fixes, more complete stack traces,
+        record $GOROOT_FINAL for runtime.GOROOT.
+* spec: delete incorrect mention of selector working on pointer to interface type.
+* sync: add Cond (thanks Gustavo Niemeyer).
+* syscall: add MCL_* flags for mlockall (thanks Albert Strasheim),
+        implement chmod() for win32 (thanks Yasuhiro Matsumoto).
+* test/bench: update timings for new GC.
+* testing: rename cmdline flags to avoid conflicts (thanks Gustavo Niemeyer).
+* textproto: introduce Header type (thanks Petar Maymounkov).
+* websocket: use new interface to access Header.
+</pre>
+
 <h3 id="2011-02-15">2011-02-15</h3>
 
 <pre>
 This release includes changes to the io, os, and template packages.
 You may need to update your code.
 
 The io.ReadByter and io.ReadRuner interface types have been renamed to
 io.ByteReader and io.RuneReader respectively.
 
 The os package's ForkExec function has been superseded by the new StartProcess
@@ skipping 2269 matching lines @@
     global channel lock is gone.·
 * sync: RWMutex now allows concurrent readers (thanks Péter Szabó)·
 * template: can use maps as data (thanks James Meneghello)·
 * unicode: updated to Unicode 5.2.·
 * websocket: new package (thanks Fumitoshi Ukai)·
 * xgb: preliminary X Go Bindings (thanks Tor Andersson)·
 * xml: fixed crash (thanks Vish Subramanian)·
 * misc: bbedit config (thanks Anthony Starks),·
     kate config (thanks Evan Shaw)·
 </pre>