diff --git a/pkgs/base/info.rkt b/pkgs/base/info.rkt
index d1bbdd1a86..4e544dd865 100644
--- a/pkgs/base/info.rkt
+++ b/pkgs/base/info.rkt
@@ -12,7 +12,7 @@
 
 (define collection 'multi)
 
-(define version "7.6.0.4")
+(define version "7.6.0.5")
 
 (define deps `("racket-lib"
                ["racket" #:version ,version]))
diff --git a/racket/src/cs/compile-file.ss b/racket/src/cs/compile-file.ss
index 49626e6cd3..bacf11265c 100644
--- a/racket/src/cs/compile-file.ss
+++ b/racket/src/cs/compile-file.ss
@@ -2,7 +2,7 @@
 ;; Check to make we're using a build of Chez Scheme
 ;; that has all the features we need.
 (define-values (need-maj need-min need-sub need-dev)
-  (values 9 5 3 13))
+  (values 9 5 3 14))
 
 (unless (guard (x [else #f]) (eval 'scheme-fork-version-number))
   (error 'compile-file
diff --git a/racket/src/cs/linklet.sls b/racket/src/cs/linklet.sls
index 66dcc4d4c2..3e91975a4b 100644
--- a/racket/src/cs/linklet.sls
+++ b/racket/src/cs/linklet.sls
@@ -1238,4 +1238,14 @@
 
   (enable-arithmetic-left-associative #t)
   (expand-omit-library-invocations #t)
-  (enable-error-source-expression #f))
+  (enable-error-source-expression #f)
+
+  ;; Since the schemify layer inserts `|#%app|` any time the rator of
+  ;; an application might not be a procedure, we can avoid redundant
+  ;; checks for other applications by enabling unsafe mode. But do that
+  ;; only if we're compiling the primitive layer in unsafe mode.
+  (meta-cond
+   [(>= (optimize-level) 3)
+    (enable-unsafe-application #t)]
+   [else
+    (void)]))
diff --git a/racket/src/racket/src/schvers.h b/racket/src/racket/src/schvers.h
index f7d3c60fa7..77c8d3a5f0 100644
--- a/racket/src/racket/src/schvers.h
+++ b/racket/src/racket/src/schvers.h
@@ -16,7 +16,7 @@
 #define MZSCHEME_VERSION_X 7
 #define MZSCHEME_VERSION_Y 6
 #define MZSCHEME_VERSION_Z 0
-#define MZSCHEME_VERSION_W 4
+#define MZSCHEME_VERSION_W 5
 
 /* A level of indirection makes `#` work as needed: */
 #define AS_a_STR_HELPER(x) #x