diff --git a/ChangeLog b/ChangeLog
index 2aac89c3b7..36cf859c34 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Sat Oct 20 11:49:20 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
+
+	* file.c (rb_get_path): returns frozen string.
+
+	* file.c (rb_file_s_chown, rb_file_s_lchown): use uid_t and gid_t.
+
 Fri Oct 19 20:08:14 2007  Nobuyoshi Nakada  <nobu@ruby-lang.org>
 
 	* encoding.c (rb_id_encoding): returns ID "encoding".
diff --git a/file.c b/file.c
index 948fc139dd..903e744811 100644
--- a/file.c
+++ b/file.c
@@ -118,14 +118,14 @@ rb_get_path(VALUE obj)
     if (obj != tmp) {
 	rb_check_safe_obj(tmp);
     }
-    return tmp;
+    return rb_str_new4(tmp);
 }
 
 static long
 apply2files(void (*func)(const char *, void *), VALUE vargs, void *arg)
 {
     long i;
-    VALUE path;
+    volatile VALUE path;
 
     rb_secure(4);
     for (i=0; i<RARRAY_LEN(vargs); i++) {
@@ -1823,7 +1823,8 @@ rb_file_s_lchmod(int argc, VALUE *argv)
 #endif
 
 struct chown_args {
-    int owner, group;
+    rb_uid_t owner;
+    rb_gid_t group;
 };
 
 static void
@@ -1862,13 +1863,13 @@ rb_file_s_chown(int argc, VALUE *argv)
 	arg.owner = -1;
     }
     else {
-	arg.owner = NUM2INT(o);
+	arg.owner = NUM2UIDT(o);
     }
     if (NIL_P(g)) {
 	arg.group = -1;
     }
     else {
-	arg.group = NUM2INT(g);
+	arg.group = NUM2GIDT(g);
     }
 
     n = apply2files(chown_internal, rest, &arg);
@@ -1946,13 +1947,13 @@ rb_file_s_lchown(int argc, VALUE *argv)
 	arg.owner = -1;
     }
     else {
-	arg.owner = NUM2INT(o);
+	arg.owner = NUM2UIDT(o);
     }
     if (NIL_P(g)) {
 	arg.group = -1;
     }
     else {
-	arg.group = NUM2INT(g);
+	arg.group = NUM2GIDT(g);
     }
 
     n = apply2files(lchown_internal, rest, &arg);
diff --git a/version.h b/version.h
index 0b50f1dbc6..0e6e369f49 100644
--- a/version.h
+++ b/version.h
@@ -1,7 +1,7 @@
 #define RUBY_VERSION "1.9.0"
-#define RUBY_RELEASE_DATE "2007-10-19"
+#define RUBY_RELEASE_DATE "2007-10-20"
 #define RUBY_VERSION_CODE 190
-#define RUBY_RELEASE_CODE 20071019
+#define RUBY_RELEASE_CODE 20071020
 #define RUBY_PATCHLEVEL 0
 
 #define RUBY_VERSION_MAJOR 1
@@ -9,7 +9,7 @@
 #define RUBY_VERSION_TEENY 0
 #define RUBY_RELEASE_YEAR 2007
 #define RUBY_RELEASE_MONTH 10
-#define RUBY_RELEASE_DAY 19
+#define RUBY_RELEASE_DAY 20
 
 #ifdef RUBY_EXTERN
 RUBY_EXTERN const char ruby_version[];