diff --git a/Lib/tempfile.py b/Lib/tempfile.py
index 86300b6..ae35314 100644
--- a/Lib/tempfile.py
+++ b/Lib/tempfile.py
@@ -546,7 +546,12 @@
 
     @property
     def encoding(self):
-        return self._file.encoding
+        try:
+            return self._file.encoding
+        except AttributeError:
+            if 'b' in self._TemporaryFileArgs['mode']:
+                raise
+            return self._TemporaryFileArgs['encoding']
 
     def fileno(self):
         self.rollover()
@@ -560,18 +565,26 @@
 
     @property
     def mode(self):
-        return self._file.mode
+        try:
+            return self._file.mode
+        except AttributeError:
+            return self._TemporaryFileArgs['mode']
 
     @property
     def name(self):
-        return self._file.name
+        try:
+            return self._file.name
+        except AttributeError:
+            return None
 
     @property
     def newlines(self):
-        return self._file.newlines
-
-    def next(self):
-        return self._file.next
+        try:
+            return self._file.newlines
+        except AttributeError:
+            if 'b' in self._TemporaryFileArgs['mode']:
+                raise
+            return self._TemporaryFileArgs['newline']
 
     def read(self, *args):
         return self._file.read(*args)
@@ -607,9 +620,6 @@
         self._check(file)
         return rv
 
-    def xreadlines(self, *args):
-        return self._file.xreadlines(*args)
-
 
 class TemporaryDirectory(object):
     """Create and return a temporary directory.  This has the same
diff --git a/Lib/test/test_tempfile.py b/Lib/test/test_tempfile.py
index 50cf3b4..7d6923c 100644
--- a/Lib/test/test_tempfile.py
+++ b/Lib/test/test_tempfile.py
@@ -808,6 +808,26 @@
         seek(0, 0)
         self.assertEqual(read(70), b'a'*35 + b'b'*35)
 
+    def test_properties(self):
+        f = tempfile.SpooledTemporaryFile(max_size=10)
+        f.write(b'x' * 10)
+        self.assertFalse(f._rolled)
+        self.assertEqual(f.mode, 'w+b')
+        self.assertIsNone(f.name)
+        with self.assertRaises(AttributeError):
+            f.newlines
+        with self.assertRaises(AttributeError):
+            f.encoding
+
+        f.write(b'x')
+        self.assertTrue(f._rolled)
+        self.assertEqual(f.mode, 'rb+')
+        self.assertIsNotNone(f.name)
+        with self.assertRaises(AttributeError):
+            f.newlines
+        with self.assertRaises(AttributeError):
+            f.encoding
+
     def test_text_mode(self):
         # Creating a SpooledTemporaryFile with a text mode should produce
         # a file object reading and writing (Unicode) text strings.
@@ -818,6 +838,12 @@
         f.write("def\n")
         f.seek(0)
         self.assertEqual(f.read(), "abc\ndef\n")
+        self.assertFalse(f._rolled)
+        self.assertEqual(f.mode, 'w+')
+        self.assertIsNone(f.name)
+        self.assertIsNone(f.newlines)
+        self.assertIsNone(f.encoding)
+
         f.write("xyzzy\n")
         f.seek(0)
         self.assertEqual(f.read(), "abc\ndef\nxyzzy\n")
@@ -825,6 +851,11 @@
         f.write("foo\x1abar\n")
         f.seek(0)
         self.assertEqual(f.read(), "abc\ndef\nxyzzy\nfoo\x1abar\n")
+        self.assertTrue(f._rolled)
+        self.assertEqual(f.mode, 'w+')
+        self.assertIsNotNone(f.name)
+        self.assertEqual(f.newlines, '\n')
+        self.assertIsNotNone(f.encoding)
 
     def test_text_newline_and_encoding(self):
         f = tempfile.SpooledTemporaryFile(mode='w+', max_size=10,
@@ -833,11 +864,19 @@
         f.seek(0)
         self.assertEqual(f.read(), "\u039B\r\n")
         self.assertFalse(f._rolled)
+        self.assertEqual(f.mode, 'w+')
+        self.assertIsNone(f.name)
+        self.assertIsNone(f.newlines)
+        self.assertIsNone(f.encoding)
 
         f.write("\u039B" * 20 + "\r\n")
         f.seek(0)
         self.assertEqual(f.read(), "\u039B\r\n" + ("\u039B" * 20) + "\r\n")
         self.assertTrue(f._rolled)
+        self.assertEqual(f.mode, 'w+')
+        self.assertIsNotNone(f.name)
+        self.assertIsNotNone(f.newlines)
+        self.assertEqual(f.encoding, 'utf-8')
 
     def test_context_manager_before_rollover(self):
         # A SpooledTemporaryFile can be used as a context manager
diff --git a/Misc/NEWS b/Misc/NEWS
index 036d712..26a22f0 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -215,6 +215,10 @@
 Library
 -------
 
+- Issue #10355: In SpooledTemporaryFile class mode, name, encoding and
+  newlines properties now work for unrolled files.  Obsoleted and never
+  working on Python 3 xreadline method now removed.
+
 - Issue #16686: Fixed a lot of bugs in audioop module.  Fixed crashes in
   avgpp(), maxpp() and ratecv().  Fixed an integer overflow in add(), bias(),
   and ratecv().  reverse(), lin2lin() and ratecv() no more lose precision for