diff --git a/unmaintained/update/backup/backup.factor b/extra/update/backup/backup.factor
similarity index 87%
rename from unmaintained/update/backup/backup.factor
rename to extra/update/backup/backup.factor
index 0dcf853b98..0c7b442ffa 100644
--- a/unmaintained/update/backup/backup.factor
+++ b/extra/update/backup/backup.factor
@@ -1,5 +1,5 @@
 
-USING: namespaces debugger io.files bootstrap.image builder.util ;
+USING: namespaces debugger io.files bootstrap.image update.util ;
 
 IN: update.backup
 
diff --git a/unmaintained/update/latest/latest.factor b/extra/update/latest/latest.factor
similarity index 94%
rename from unmaintained/update/latest/latest.factor
rename to extra/update/latest/latest.factor
index df057422f9..7cc2fac853 100644
--- a/unmaintained/update/latest/latest.factor
+++ b/extra/update/latest/latest.factor
@@ -1,6 +1,6 @@
 
 USING: kernel namespaces system io.files bootstrap.image http.client
-       builder.util update update.backup ;
+       update update.backup update.util ;
 
 IN: update.latest
 
diff --git a/unmaintained/update/update.factor b/extra/update/update.factor
similarity index 94%
rename from unmaintained/update/update.factor
rename to extra/update/update.factor
index 1d25a9792e..c6a5671345 100644
--- a/unmaintained/update/update.factor
+++ b/extra/update/update.factor
@@ -1,7 +1,9 @@
 
 USING: kernel system sequences io.files io.launcher bootstrap.image
        http.client
-       builder.util builder.release.branch ;
+       update.util ;
+
+       ! builder.util builder.release.branch ;
 
 IN: update
 
diff --git a/extra/update/util/util.factor b/extra/update/util/util.factor
new file mode 100644
index 0000000000..b638b61528
--- /dev/null
+++ b/extra/update/util/util.factor
@@ -0,0 +1,62 @@
+
+USING: kernel classes strings quotations words math math.parser arrays
+       combinators.cleave
+       accessors
+       system prettyprint splitting
+       sequences combinators sequences.deep
+       io
+       io.launcher
+       io.encodings.utf8
+       calendar
+       calendar.format ;
+
+IN: update.util
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+DEFER: to-strings
+
+: to-string ( obj -- str )
+  dup class
+    {
+      { \ string    [ ] }
+      { \ quotation [ call ] }
+      { \ word      [ execute ] }
+      { \ fixnum    [ number>string ] }
+      { \ array     [ to-strings concat ] }
+    }
+  case ;
+
+: to-strings ( seq -- str )
+  dup [ string? ] all?
+    [ ]
+    [ [ to-string ] map flatten ]
+  if ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: cpu- ( -- cpu ) cpu unparse "." split "-" join ;
+
+: platform ( -- string ) { [ os unparse ] cpu- } to-strings "-" join ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: branch-name ( -- string ) "clean-" platform append ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: gnu-make ( -- string )
+  os { freebsd openbsd netbsd } member? [ "gmake" ] [ "make" ] if ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: git-id ( -- id )
+  { "git" "show" } utf8 <process-reader> [ readln ] with-input-stream
+  " " split second ;
+
+! !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
+
+: datestamp ( -- string )
+  now
+    { year>> month>> day>> hour>> minute>> } <arr>
+  [ pad-00 ] map "-" join ;