diff --git a/src/cmd/gofix/error.go b/src/cmd/gofix/error.go
index e0ced633d9..5e20ff683b 100644
--- a/src/cmd/gofix/error.go
+++ b/src/cmd/gofix/error.go
@@ -11,11 +11,12 @@ import (
 )
 
 func init() {
-	fixes = append(fixes, errorFix)
+	register(errorFix)
 }
 
 var errorFix = fix{
 	"error",
+	"2011-11-02",
 	errorFn,
 	`Use error instead of os.Error.
 
diff --git a/src/cmd/gofix/filepath.go b/src/cmd/gofix/filepath.go
index 3edccabfa6..f31226018a 100644
--- a/src/cmd/gofix/filepath.go
+++ b/src/cmd/gofix/filepath.go
@@ -8,8 +8,13 @@ import (
 	"go/ast"
 )
 
+func init() {
+	register(filepathFix)
+}
+
 var filepathFix = fix{
 	"filepath",
+	"2011-06-26",
 	filepathFunc,
 	`Adapt code from filepath.[List]SeparatorString to string(filepath.[List]Separator).
 
diff --git a/src/cmd/gofix/fix.go b/src/cmd/gofix/fix.go
index f7b55b073d..394685a15a 100644
--- a/src/cmd/gofix/fix.go
+++ b/src/cmd/gofix/fix.go
@@ -24,45 +24,29 @@ import (
 
 type fix struct {
 	name string
+	date string // date that fix was introduced, in YYYY-MM-DD format
 	f    func(*ast.File) bool
 	desc string
 }
 
-// main runs sort.Sort(fixes) before printing list of fixes.
-type fixlist []fix
+// main runs sort.Sort(byName(fixes)) before printing list of fixes.
+type byName []fix
 
-func (f fixlist) Len() int           { return len(f) }
-func (f fixlist) Swap(i, j int)      { f[i], f[j] = f[j], f[i] }
-func (f fixlist) Less(i, j int) bool { return f[i].name < f[j].name }
+func (f byName) Len() int           { return len(f) }
+func (f byName) Swap(i, j int)      { f[i], f[j] = f[j], f[i] }
+func (f byName) Less(i, j int) bool { return f[i].name < f[j].name }
 
-var fixes = fixlist{
-	// NOTE: This list must be in chronological order,
-	// so that code using APIs that changed multiple times
-	// can be updated in the correct order.
-	// Add new fixes to bottom of list.  Do not sort.
-	httpserverFix,
-	procattrFix,
-	netdialFix,
-	netlookupFix,
-	tlsdialFix,
-	osopenFix,
-	reflectFix,
-	httpFinalURLFix,
-	httpHeadersFix,
-	oserrorstringFix,
-	sortsliceFix,
-	filepathFix,
-	httpFileSystemFix,
-	stringssplitFix,
-	signalFix,
-	sorthelpersFix,
-	urlFix,
-	netudpgroupFix,
-	imagenewFix,
-	mathFix,
-	ioCopyNFix,
-	imagecolorFix,
-	mapdeleteFix,
+// main runs sort.Sort(byDate(fixes)) before applying fixes.
+type byDate []fix
+
+func (f byDate) Len() int           { return len(f) }
+func (f byDate) Swap(i, j int)      { f[i], f[j] = f[j], f[i] }
+func (f byDate) Less(i, j int) bool { return f[i].date < f[j].date }
+
+var fixes []fix
+
+func register(f fix) {
+	fixes = append(fixes, f)
 }
 
 // walk traverses the AST x, calling visit(y) for each node y in the tree but
diff --git a/src/cmd/gofix/httpfinalurl.go b/src/cmd/gofix/httpfinalurl.go
index 6051a2f3f9..49b9f1c516 100644
--- a/src/cmd/gofix/httpfinalurl.go
+++ b/src/cmd/gofix/httpfinalurl.go
@@ -8,8 +8,13 @@ import (
 	"go/ast"
 )
 
+func init() {
+	register(httpFinalURLFix)
+}
+
 var httpFinalURLFix = fix{
 	"httpfinalurl",
+	"2011-05-13",
 	httpfinalurl,
 	`Adapt http Get calls to not have a finalURL result parameter.
 
diff --git a/src/cmd/gofix/httpfs.go b/src/cmd/gofix/httpfs.go
index 317330619e..625dd0f7db 100644
--- a/src/cmd/gofix/httpfs.go
+++ b/src/cmd/gofix/httpfs.go
@@ -9,8 +9,13 @@ import (
 	"go/token"
 )
 
+func init() {
+	register(httpFileSystemFix)
+}
+
 var httpFileSystemFix = fix{
 	"httpfs",
+	"2011-06-27",
 	httpfs,
 	`Adapt http FileServer to take a FileSystem.
 
diff --git a/src/cmd/gofix/httpheaders.go b/src/cmd/gofix/httpheaders.go
index e9856f5db4..0bce12b512 100644
--- a/src/cmd/gofix/httpheaders.go
+++ b/src/cmd/gofix/httpheaders.go
@@ -8,8 +8,13 @@ import (
 	"go/ast"
 )
 
+func init() {
+	register(httpHeadersFix)
+}
+
 var httpHeadersFix = fix{
 	"httpheaders",
+	"2011-06-16",
 	httpheaders,
 	`Rename http Referer, UserAgent, Cookie, SetCookie, which are now methods.
 
diff --git a/src/cmd/gofix/httpserver.go b/src/cmd/gofix/httpserver.go
index cf8d16a978..7aa6517864 100644
--- a/src/cmd/gofix/httpserver.go
+++ b/src/cmd/gofix/httpserver.go
@@ -9,8 +9,13 @@ import (
 	"go/token"
 )
 
+func init() {
+	register(httpserverFix)
+}
+
 var httpserverFix = fix{
 	"httpserver",
+	"2011-03-15",
 	httpserver,
 	`Adapt http server methods and functions to changes
 made to the http ResponseWriter interface.
diff --git a/src/cmd/gofix/imagecolor.go b/src/cmd/gofix/imagecolor.go
index c7900e4657..1aac40a6fd 100644
--- a/src/cmd/gofix/imagecolor.go
+++ b/src/cmd/gofix/imagecolor.go
@@ -8,8 +8,13 @@ import (
 	"go/ast"
 )
 
+func init() {
+	register(imagecolorFix)
+}
+
 var imagecolorFix = fix{
 	"imagecolor",
+	"2011-10-04",
 	imagecolor,
 	`Adapt code to types moved from image to color.
 
diff --git a/src/cmd/gofix/imagenew.go b/src/cmd/gofix/imagenew.go
index 07cbef5697..b4e36d4f0c 100644
--- a/src/cmd/gofix/imagenew.go
+++ b/src/cmd/gofix/imagenew.go
@@ -8,8 +8,13 @@ import (
 	"go/ast"
 )
 
+func init() {
+	register(imagenewFix)
+}
+
 var imagenewFix = fix{
 	"imagenew",
+	"2011-09-14",
 	imagenew,
 	`Adapt image.NewXxx calls to pass an image.Rectangle instead of (w, h int).
 
diff --git a/src/cmd/gofix/iocopyn.go b/src/cmd/gofix/iocopyn.go
index f911dd7403..720f3c6890 100644
--- a/src/cmd/gofix/iocopyn.go
+++ b/src/cmd/gofix/iocopyn.go
@@ -8,8 +8,13 @@ import (
 	"go/ast"
 )
 
+func init() {
+	register(ioCopyNFix)
+}
+
 var ioCopyNFix = fix{
 	"iocopyn",
+	"2011-09-30",
 	ioCopyN,
 	`Rename io.Copyn to io.CopyN.
 
diff --git a/src/cmd/gofix/main.go b/src/cmd/gofix/main.go
index 1d0f4b0f07..fbb705c076 100644
--- a/src/cmd/gofix/main.go
+++ b/src/cmd/gofix/main.go
@@ -40,7 +40,7 @@ func usage() {
 	fmt.Fprintf(os.Stderr, "usage: gofix [-diff] [-r fixname,...] [-force fixname,...] [path ...]\n")
 	flag.PrintDefaults()
 	fmt.Fprintf(os.Stderr, "\nAvailable rewrites are:\n")
-	sort.Sort(fixes)
+	sort.Sort(byName(fixes))
 	for _, f := range fixes {
 		fmt.Fprintf(os.Stderr, "\n%s\n", f.name)
 		desc := strings.TrimSpace(f.desc)
@@ -54,6 +54,8 @@ func main() {
 	flag.Usage = usage
 	flag.Parse()
 
+	sort.Sort(byDate(fixes))
+
 	if *allowedRewrites != "" {
 		allowed = make(map[string]bool)
 		for _, f := range strings.Split(*allowedRewrites, ",") {
diff --git a/src/cmd/gofix/mapdelete.go b/src/cmd/gofix/mapdelete.go
index b99602dcc2..db89c7bf45 100644
--- a/src/cmd/gofix/mapdelete.go
+++ b/src/cmd/gofix/mapdelete.go
@@ -6,8 +6,13 @@ package main
 
 import "go/ast"
 
+func init() {
+	register(mapdeleteFix)
+}
+
 var mapdeleteFix = fix{
 	"mapdelete",
+	"2011-10-18",
 	mapdelete,
 	`Use delete(m, k) instead of m[k] = 0, false.
 
diff --git a/src/cmd/gofix/math.go b/src/cmd/gofix/math.go
index a9a11ed615..2ec837eb00 100644
--- a/src/cmd/gofix/math.go
+++ b/src/cmd/gofix/math.go
@@ -6,8 +6,13 @@ package main
 
 import "go/ast"
 
+func init() {
+	register(mathFix)
+}
+
 var mathFix = fix{
 	"math",
+	"2011-09-29",
 	math,
 	`Remove the leading F from math functions such as Fabs.
 
diff --git a/src/cmd/gofix/netdial.go b/src/cmd/gofix/netdial.go
index 6984cdc372..2de994cffe 100644
--- a/src/cmd/gofix/netdial.go
+++ b/src/cmd/gofix/netdial.go
@@ -8,8 +8,15 @@ import (
 	"go/ast"
 )
 
+func init() {
+	register(netdialFix)
+	register(tlsdialFix)
+	register(netlookupFix)
+}
+
 var netdialFix = fix{
 	"netdial",
+	"2011-03-28",
 	netdial,
 	`Adapt 3-argument calls of net.Dial to use 2-argument form.
 
@@ -19,6 +26,7 @@ http://codereview.appspot.com/4244055
 
 var tlsdialFix = fix{
 	"tlsdial",
+	"2011-03-28",
 	tlsdial,
 	`Adapt 4-argument calls of tls.Dial to use 3-argument form.
 
@@ -28,6 +36,7 @@ http://codereview.appspot.com/4244055
 
 var netlookupFix = fix{
 	"netlookup",
+	"2011-03-28",
 	netlookup,
 	`Adapt 3-result calls to net.LookupHost to use 2-result form.
 
diff --git a/src/cmd/gofix/netudpgroup.go b/src/cmd/gofix/netudpgroup.go
index 9bbb2d7919..12a2efa287 100644
--- a/src/cmd/gofix/netudpgroup.go
+++ b/src/cmd/gofix/netudpgroup.go
@@ -8,8 +8,13 @@ import (
 	"go/ast"
 )
 
+func init() {
+	register(netudpgroupFix)
+}
+
 var netudpgroupFix = fix{
 	"netudpgroup",
+	"2011-08-18",
 	netudpgroup,
 	`Adapt 1-argument calls of net.(*UDPConn).JoinGroup, LeaveGroup to use 2-argument form.
 
diff --git a/src/cmd/gofix/oserrorstring.go b/src/cmd/gofix/oserrorstring.go
index 416333fc12..a75a2c12d3 100644
--- a/src/cmd/gofix/oserrorstring.go
+++ b/src/cmd/gofix/oserrorstring.go
@@ -8,8 +8,13 @@ import (
 	"go/ast"
 )
 
+func init() {
+	register(oserrorstringFix)
+}
+
 var oserrorstringFix = fix{
 	"oserrorstring",
+	"2011-06-22",
 	oserrorstring,
 	`Replace os.ErrorString() conversions with calls to os.NewError().
 
diff --git a/src/cmd/gofix/osopen.go b/src/cmd/gofix/osopen.go
index 7e7fbbb037..af2796ac22 100644
--- a/src/cmd/gofix/osopen.go
+++ b/src/cmd/gofix/osopen.go
@@ -8,8 +8,13 @@ import (
 	"go/ast"
 )
 
+func init() {
+	register(osopenFix)
+}
+
 var osopenFix = fix{
 	"osopen",
+	"2011-04-04",
 	osopen,
 	`Adapt os.Open calls to new, easier API and rename O_CREAT O_CREATE.
 
diff --git a/src/cmd/gofix/procattr.go b/src/cmd/gofix/procattr.go
index 86a8fd1035..ea375ec9dd 100644
--- a/src/cmd/gofix/procattr.go
+++ b/src/cmd/gofix/procattr.go
@@ -9,8 +9,13 @@ import (
 	"go/token"
 )
 
+func init() {
+	register(procattrFix)
+}
+
 var procattrFix = fix{
 	"procattr",
+	"2011-03-15",
 	procattr,
 	`Adapt calls to os.StartProcess to use new ProcAttr type.
 
diff --git a/src/cmd/gofix/reflect.go b/src/cmd/gofix/reflect.go
index 2227d69b44..6670ef2774 100644
--- a/src/cmd/gofix/reflect.go
+++ b/src/cmd/gofix/reflect.go
@@ -15,8 +15,13 @@ import (
 	"strings"
 )
 
+func init() {
+	register(reflectFix)
+}
+
 var reflectFix = fix{
 	"reflect",
+	"2011-04-08",
 	reflectFn,
 	`Adapt code to new reflect API.
 
diff --git a/src/cmd/gofix/signal.go b/src/cmd/gofix/signal.go
index 9b548bd089..5a583d41e9 100644
--- a/src/cmd/gofix/signal.go
+++ b/src/cmd/gofix/signal.go
@@ -9,8 +9,13 @@ import (
 	"strings"
 )
 
+func init() {
+	register(signalFix)
+}
+
 var signalFix = fix{
 	"signal",
+	"2011-06-29",
 	signal,
 	`Adapt code to types moved from os/signal to signal.
 
diff --git a/src/cmd/gofix/sorthelpers.go b/src/cmd/gofix/sorthelpers.go
index 74d0daa3a9..fa549313eb 100644
--- a/src/cmd/gofix/sorthelpers.go
+++ b/src/cmd/gofix/sorthelpers.go
@@ -8,8 +8,13 @@ import (
 	"go/ast"
 )
 
+func init() {
+	register(sorthelpersFix)
+}
+
 var sorthelpersFix = fix{
 	"sorthelpers",
+	"2011-07-08",
 	sorthelpers,
 	`Adapt code from sort.Sort[Ints|Float64s|Strings] to sort.[Ints|Float64s|Strings].
 `,
diff --git a/src/cmd/gofix/sortslice.go b/src/cmd/gofix/sortslice.go
index 847f0d57fb..89267b847e 100644
--- a/src/cmd/gofix/sortslice.go
+++ b/src/cmd/gofix/sortslice.go
@@ -8,8 +8,13 @@ import (
 	"go/ast"
 )
 
+func init() {
+	register(sortsliceFix)
+}
+
 var sortsliceFix = fix{
 	"sortslice",
+	"2011-06-26",
 	sortslice,
 	`Adapt code from sort.[Float64|Int|String]Array to  sort.[Float64|Int|String]Slice.
 		
diff --git a/src/cmd/gofix/stringssplit.go b/src/cmd/gofix/stringssplit.go
index e3886dd729..d89ecf039c 100644
--- a/src/cmd/gofix/stringssplit.go
+++ b/src/cmd/gofix/stringssplit.go
@@ -9,8 +9,13 @@ import (
 	"go/token"
 )
 
+func init() {
+	register(stringssplitFix)
+}
+
 var stringssplitFix = fix{
 	"stringssplit",
+	"2011-06-28",
 	stringssplit,
 	`Restore strings.Split to its original meaning and add strings.SplitN. Bytes too.
 
diff --git a/src/cmd/gofix/url.go b/src/cmd/gofix/url.go
index d90f2b0cc1..49aac739b3 100644
--- a/src/cmd/gofix/url.go
+++ b/src/cmd/gofix/url.go
@@ -6,8 +6,13 @@ package main
 
 import "go/ast"
 
+func init() {
+	register(urlFix)
+}
+
 var urlFix = fix{
 	"url",
+	"2011-08-17",
 	url,
 	`Move the URL pieces of package http into a new package, url.