This page summarizes the changes between tagged releases of Go. For full details, see the Mercurial change log.
+
+The 5g (ARM) compiler now has registerization enabled. If you discover it
+causes bugs, use 5g -N to disable the registerizer and please let us know.
+
+The xml package now allows the extraction of nested XML tags by specifying
+struct tags of the form “parent>child”. See the XML documentation for an
+example: http://golang.org/pkg/xml/
+
+* 5a, 5l, 6a, 6l, 8a, 8l: handle out of memory, large allocations (thanks Jeff R. Allen).
+* 8l: pe changes (thanks Alex Brainman).
+* arm: fixes and improvements.
+* cc: fix vlong condition.
+* cgo: add complex float, complex double (thanks Sebastien Binet),
+ in _cgo_main.c define all provided symbols as functions.
+* codereview: don't mail change lists with no files (thanks Ryan Hitchman).
+* crypto/cipher: add OFB mode.
+* expvar: add Float.
+* fmt: document %X of string, []byte.
+* gc, runtime: make range on channel safe for multiple goroutines.
+* gc: fix typed constant declarations (thanks Anthony Martin).
+* go spec: adjust language for constant typing.
+* go/scanner: Make Init take a *token.File instead of a *token.FileSet.
+* godoc: bring back "indexing in progress" message,
+ don't double HTML-escape search result snippets,
+ enable qualified identifiers ("math.Sin") as query strings again,
+ peephole optimization for generated HTML,
+ remove tab before formatted section.
+* gofmt, go/printer: do not insert extra line breaks where they may break the code.
+* http: fix Content-Range and Content-Length in response (thanks Clement Skau),
+ fix scheme-relative URL parsing; add ParseRequestURL,
+ handle HEAD requests correctly,
+ support for relative URLs.
+* math: handle denormalized numbers in Frexp, Ilogb, Ldexp, and Logb (thanks Eoghan Sherry).
+* net, syscall: return source address in Recvmsg (thanks Albert Strasheim).
+* net: add LookupAddr (thanks Kyle Lemons),
+ add unixpacket (thanks Albert Strasheim),
+ avoid nil dereference if /etc/services can't be opened (thanks Corey Thomasson),
+ implement windows timeout (thanks Wei Guangjing).
+* netchan: do not block sends; implement flow control (thanks Roger Peppe).
+* regexp: reject bare ‘?’. (thanks Ben Lynn)
+* runtime/cgo: don't define crosscall2 in dummy _cgo_main.c.
+* runtime/debug: new package for printing stack traces from a running goroutine.
+* runtime: add per-pause gc stats,
+ fix arm reflect.call boundary case,
+ print signal information during panic.
+* spec: specify that int and uint have the same size.
+* syscall: correct WSTOPPED on OS X,
+ correct length of GNU/Linux abstract Unix domain sockaddr,
+ correct length of SockaddrUnix.
+* tutorial: make stdin, stdout, stderr work on Windows.
+* windows: implement exception handling (thanks Hector Chu).
+
+