diff --git a/NEWS b/NEWS
index 3c53edd..6f49105 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,12 @@
+== 22 May 2017 ==
+
+gperftools 2.6rc4 is out!
+
+Dynamic sized delete is disabled by default again. There is no hope of
+it working with eager dynamic symbols resolution (-z now linker
+flag). More details in
+https://bugzilla.redhat.com/show_bug.cgi?id=1452813
+
 == 21 May 2017 ==
 
 gperftools 2.6rc3 is out!
diff --git a/configure.ac b/configure.ac
index 98efd0d..7bc9214 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,11 +4,11 @@
 # make sure we're interpreted by some minimal autoconf
 AC_PREREQ([2.59])
 
-AC_INIT([gperftools],[2.5.92],[gperftools@googlegroups.com])
+AC_INIT([gperftools],[2.5.93],[gperftools@googlegroups.com])
 # Update this value for every release!  (A:B:C will map to foo.so.(A-C).C.B)
 # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
-TCMALLOC_SO_VERSION=8:2:4
-PROFILER_SO_VERSION=4:11:4
+TCMALLOC_SO_VERSION=8:3:4
+PROFILER_SO_VERSION=4:12:4
 
 AC_SUBST(TCMALLOC_SO_VERSION)
 AC_SUBST(PROFILER_SO_VERSION)
diff --git a/src/windows/config.h b/src/windows/config.h
index 10dbf40..230dd72 100644
--- a/src/windows/config.h
+++ b/src/windows/config.h
@@ -236,7 +236,7 @@
 #define PACKAGE_NAME "gperftools"
 
 /* Define to the full name and version of this package. */
-#define PACKAGE_STRING "gperftools 2.5.92"
+#define PACKAGE_STRING "gperftools 2.5.93"
 
 /* Define to the one symbol short name of this package. */
 #define PACKAGE_TARNAME "gperftools"
@@ -245,7 +245,7 @@
 #undef PACKAGE_URL
 
 /* Define to the version of this package. */
-#define PACKAGE_VERSION "2.5.92"
+#define PACKAGE_VERSION "2.5.93"
 
 /* How to access the PC from a struct ucontext */
 #undef PC_FROM_UCONTEXT
diff --git a/src/windows/gperftools/tcmalloc.h b/src/windows/gperftools/tcmalloc.h
index a9b625c..e75e1c6 100644
--- a/src/windows/gperftools/tcmalloc.h
+++ b/src/windows/gperftools/tcmalloc.h
@@ -41,8 +41,8 @@
 /* Define the version number so folks can check against it */
 #define TC_VERSION_MAJOR  2
 #define TC_VERSION_MINOR  5
-#define TC_VERSION_PATCH  ".92"
-#define TC_VERSION_STRING "gperftools 2.5.92"
+#define TC_VERSION_PATCH  ".93"
+#define TC_VERSION_STRING "gperftools 2.5.93"
 
 #ifndef PERFTOOLS_THROW