diff --git a/pkgs/base/info.rkt b/pkgs/base/info.rkt
index d98699f47d..5677987d83 100644
--- a/pkgs/base/info.rkt
+++ b/pkgs/base/info.rkt
@@ -12,7 +12,7 @@
 
 (define collection 'multi)
 
-(define version "7.0.0.17")
+(define version "7.0.0.18")
 
 (define deps `("racket-lib"
                ["racket" #:version ,version]))
diff --git a/racket/collects/racket/place.rkt b/racket/collects/racket/place.rkt
index a8b60dc531..1a6bdb7762 100644
--- a/racket/collects/racket/place.rkt
+++ b/racket/collects/racket/place.rkt
@@ -20,7 +20,6 @@
 
 (provide (protect-out dynamic-place
                       dynamic-place*)
-         place-sleep
          place-wait
          place-kill
          (rename-out [place-break/opt place-break])
@@ -58,7 +57,6 @@
 
 (define place-channel (if (pl-place-enabled?)  pl-place-channel th-place-channel))
 
-(define-pl-func place-sleep p)
 (define-pl-func place-wait p)
 (define-pl-func place-kill p)
 (define-pl-func place-break p kind)
diff --git a/racket/collects/racket/place/private/th-place.rkt b/racket/collects/racket/place/private/th-place.rkt
index ea1117de21..7dfa30ff6d 100644
--- a/racket/collects/racket/place/private/th-place.rkt
+++ b/racket/collects/racket/place/private/th-place.rkt
@@ -12,7 +12,6 @@
 
 (provide th-dynamic-place
          ;th-dynamic-place*
-         th-place-sleep
          th-place-wait
          th-place-kill
          th-place-break
@@ -80,7 +79,6 @@
     (thread (lambda () (thread-wait th) (custodian-shutdown-all cust))))
   (TH-place th pch cust cust-box result-box))
 
-(define (th-place-sleep n) (sleep n))
 (define (th-place-wait pl) (sync (TH-place-cust-box pl)) (unbox (TH-place-result-box pl)))
 (define (th-place-kill pl) (set-box! (TH-place-result-box pl) 1) (custodian-shutdown-all (TH-place-cust pl)))
 (define (th-place-break pl kind) (break-thread (TH-place-th pl) kind))
diff --git a/racket/src/cs/primitive/place.ss b/racket/src/cs/primitive/place.ss
index bf23f98eb4..7f15dc30cb 100644
--- a/racket/src/cs/primitive/place.ss
+++ b/racket/src/cs/primitive/place.ss
@@ -12,6 +12,5 @@
   [place-message-allowed? (known-procedure 2)]
   [place-pumper-threads (known-procedure 6)]
   [place-shared? (known-procedure 2)]
-  [place-sleep (known-procedure 2)]
   [place-wait (known-procedure 2)]
   [place? (known-procedure 2)])
diff --git a/racket/src/racket/src/place.c b/racket/src/racket/src/place.c
index 1a54f4eddf..bcb9cbfa5d 100644
--- a/racket/src/racket/src/place.c
+++ b/racket/src/racket/src/place.c
@@ -50,7 +50,6 @@ static Scheme_Object *place_pumper_threads(int argc, Scheme_Object *args[]);
 static Scheme_Object *place_wait(int argc, Scheme_Object *args[]);
 static Scheme_Object *place_kill(int argc, Scheme_Object *args[]);
 static Scheme_Object *place_break(int argc, Scheme_Object *args[]);
-static Scheme_Object *place_sleep(int argc, Scheme_Object *args[]);
 static Scheme_Object *place_p(int argc, Scheme_Object *args[]);
 static Scheme_Object *place_send(int argc, Scheme_Object *args[]);
 static Scheme_Object *place_receive(int argc, Scheme_Object *args[]);
@@ -138,7 +137,6 @@ void scheme_init_place(Scheme_Startup_Env *env)
   ADD_PRIM_W_ARITY("place-shared?",        scheme_place_shared,    1, 1, env);
   PLACE_PRIM_W_ARITY("dynamic-place",         scheme_place,           5, 5, env);
   PLACE_PRIM_W_ARITY("place-pumper-threads",  place_pumper_threads,   1, 2, env);
-  PLACE_PRIM_W_ARITY("place-sleep",           place_sleep,     1, 1, env);
   PLACE_PRIM_W_ARITY("place-wait",            place_wait,      1, 1, env);
   PLACE_PRIM_W_ARITY("place-kill",            place_kill,      1, 1, env);
   PLACE_PRIM_W_ARITY("place-break",           place_break,     1, 2, env);
@@ -236,11 +234,6 @@ static void null_out_runtime_globals() {
   scheme_current_cont_mark_pos    = 0;
 }
 
-Scheme_Object *place_sleep(int argc, Scheme_Object *args[]) {
-  mzrt_sleep(SCHEME_INT_VAL(args[0]));
-  return scheme_void;
-}
-
 Scheme_Object *scheme_make_place_object() {
   Scheme_Place_Object   *place_obj;
   place_obj = GC_master_malloc_tagged(sizeof(Scheme_Place_Object));
diff --git a/racket/src/racket/src/schminc.h b/racket/src/racket/src/schminc.h
index 57fbfca146..3cf3764601 100644
--- a/racket/src/racket/src/schminc.h
+++ b/racket/src/racket/src/schminc.h
@@ -14,7 +14,7 @@
 
 #define USE_COMPILED_STARTUP 1
 
-#define EXPECTED_PRIM_COUNT 1450
+#define EXPECTED_PRIM_COUNT 1449
 
 #ifdef MZSCHEME_SOMETHING_OMITTED
 # undef USE_COMPILED_STARTUP
diff --git a/racket/src/racket/src/schvers.h b/racket/src/racket/src/schvers.h
index af8b4f1165..edbdae656c 100644
--- a/racket/src/racket/src/schvers.h
+++ b/racket/src/racket/src/schvers.h
@@ -13,12 +13,12 @@
    consistently.)
 */
 
-#define MZSCHEME_VERSION "7.0.0.17"
+#define MZSCHEME_VERSION "7.0.0.18"
 
 #define MZSCHEME_VERSION_X 7
 #define MZSCHEME_VERSION_Y 0
 #define MZSCHEME_VERSION_Z 0
-#define MZSCHEME_VERSION_W 17
+#define MZSCHEME_VERSION_W 18
 
 #define MZSCHEME_VERSION_MAJOR ((MZSCHEME_VERSION_X * 100) + MZSCHEME_VERSION_Y)
 #define MZSCHEME_VERSION_MINOR ((MZSCHEME_VERSION_Z * 1000) + MZSCHEME_VERSION_W)
diff --git a/racket/src/thread/main.rkt b/racket/src/thread/main.rkt
index 1bd2bda4e7..e23945e2d5 100644
--- a/racket/src/thread/main.rkt
+++ b/racket/src/thread/main.rkt
@@ -164,7 +164,6 @@
          place-kill
          place-wait
          place-dead-evt
-         place-sleep
 
          place-channel
          place-channel? 
diff --git a/racket/src/thread/place.rkt b/racket/src/thread/place.rkt
index 3a55eced09..e1848d71a2 100644
--- a/racket/src/thread/place.rkt
+++ b/racket/src/thread/place.rkt
@@ -21,7 +21,6 @@
          place-kill
          place-wait
          place-dead-evt
-         place-sleep
 
          place-channel
          place-channel? 
@@ -198,9 +197,6 @@
   (check who place? p)
   (place-done-evt p #f))
 
-(define/who (place-sleep msecs)
-  (void))
-
 ;; ----------------------------------------
 
 (struct pchannel ()