diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4d2c4d7b2..2f5e27696 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,5 @@
 # Changes
 
-## QFS version 2.1.0
+## QFS version 2.1.3
 
 https://github.com/quantcast/qfs/wiki/Release-Notes
diff --git a/src/cc/common/buildversgit.sh b/src/cc/common/buildversgit.sh
index 8cedd508f..ce944b6ac 100755
--- a/src/cc/common/buildversgit.sh
+++ b/src/cc/common/buildversgit.sh
@@ -19,7 +19,7 @@
 # permissions and limitations under the License.
 
 # default version to use if git is not available
-qfs_no_git_version="2.1.2"
+qfs_no_git_version="2.1.3"
 
 usage() {
     echo "
diff --git a/wiki/Binary-Distributions.md b/wiki/Binary-Distributions.md
index bf367093e..9336c6a8a 100644
--- a/wiki/Binary-Distributions.md
+++ b/wiki/Binary-Distributions.md
@@ -5,6 +5,7 @@ ideal for quickly trying out QFS as a Single Node deployment. See
 | Release          | Ubuntu 14.04 Trusty Tahr       | Ubuntu 16.04 LTS (Xenial Xerus)   | Ubuntu 18.04 LTS (Bionic Beaver)   | Debian 9 Stretch           | CentOS 6                  | CentOS 7                 | Mac OS X                 |
 |------------------|--------------------------------|-----------------------------------|------------------------------------|----------------------------|---------------------------|--------------------------|--------------------------|
 | [master][master] | [download][master,ubuntu14.04] | [download][master,ubuntu16.04]    | [download][master,ubuntu18.04]     | [download][master,debian9] | [download][master,centos6]|[download][master,centos7]| [download][master,macos] |
+| [2.1.3][2.1.3]   | [download][2.1.3,ubuntu14.04]  | [download][2.1.3,ubuntu16.04]     | [download][2.1.3,ubuntu18.04]      | [download][2.1.3,debian9]  | [download][2.1.3,centos6] |[download][2.1.3,centos7] | [download][2.1.3,macos]  |
 | [2.1.2][2.1.2]   | [download][2.1.2,ubuntu14.04]  | [download][2.1.2,ubuntu16.04]     | [download][2.1.2,ubuntu18.04]      | [download][2.1.2,debian9]  | [download][2.1.2,centos6] |[download][2.1.2,centos7] | [download][2.1.2,macos]  |
 | [2.1.1][2.1.1]   | [download][2.1.1,ubuntu14.04]  | [download][2.1.1,ubuntu16.04]     | [download][2.1.1,ubuntu18.04]      | [download][2.1.1,debian9]  | [download][2.1.1,centos6] |[download][2.1.1,centos7] | [download][2.1.1,macos]  |
 | [2.1.0][2.1.0]   | [download][2.1.0,ubuntu14.04]  |                                   | [download][2.1.0,ubuntu18.04]      | [download][2.1.0,debian9]  | [download][2.1.0,centos6] |[download][2.1.0,centos7] |                          |
@@ -21,6 +22,7 @@ ideal for quickly trying out QFS as a Single Node deployment. See
 ![Quantcast](//pixel.quantserve.com/pixel/p-9fYuixa7g_Hm2.gif?labels=opensource.qfs.wiki)
 
 [master]: https://github.com/quantcast/qfs
+[2.1.3]: https://github.com/quantcast/qfs/tree/2.1.3
 [2.1.2]: https://github.com/quantcast/qfs/tree/2.1.2
 [2.1.1]: https://github.com/quantcast/qfs/tree/2.1.1
 [2.1.0]: https://github.com/quantcast/qfs/tree/2.1.0
@@ -35,6 +37,7 @@ ideal for quickly trying out QFS as a Single Node deployment. See
 [1.0.1]: https://github.com/quantcast/qfs/tree/1.0.1
 
 [master,ubuntu14.04]: https://s3.amazonaws.com/quantcast-qfs/qfs-ubuntu-14.04-master-x86_64.tgz
+[2.1.3,ubuntu14.04]: https://s3.amazonaws.com/quantcast-qfs/qfs-ubuntu-14.04-2.1.3-x86_64.tgz
 [2.1.2,ubuntu14.04]: https://s3.amazonaws.com/quantcast-qfs/qfs-ubuntu-14.04-2.1.2-x86_64.tgz
 [2.1.1,ubuntu14.04]: https://s3.amazonaws.com/quantcast-qfs/qfs-ubuntu-14.04-2.1.1-x86_64.tgz
 [2.1.0,ubuntu14.04]: https://s3.amazonaws.com/quantcast-qfs/qfs-ubuntu-14.04.5-2.1.0-x86_64.tgz
@@ -48,20 +51,24 @@ ideal for quickly trying out QFS as a Single Node deployment. See
 [1.0.1,ubuntu]: https://s3.amazonaws.com/quantcast-qfs/qfs-ubuntu-14.04.4-1.0.1-x86_64.tgz
 
 [master,ubuntu16.04]: https://s3.amazonaws.com/quantcast-qfs/qfs-ubuntu-16.04-master-x86_64.tgz
+[2.1.3,ubuntu16.04]: https://s3.amazonaws.com/quantcast-qfs/qfs-ubuntu-16.04-2.1.3-x86_64.tgz
 [2.1.2,ubuntu16.04]: https://s3.amazonaws.com/quantcast-qfs/qfs-ubuntu-16.04-2.1.2-x86_64.tgz
 [2.1.1,ubuntu16.04]: https://s3.amazonaws.com/quantcast-qfs/qfs-ubuntu-16.04-2.1.1-x86_64.tgz
 
 [master,ubuntu18.04]: https://s3.amazonaws.com/quantcast-qfs/qfs-ubuntu-18.04-master-x86_64.tgz
+[2.1.3,ubuntu18.04]: https://s3.amazonaws.com/quantcast-qfs/qfs-ubuntu-18.04-2.1.3-x86_64.tgz
 [2.1.2,ubuntu18.04]: https://s3.amazonaws.com/quantcast-qfs/qfs-ubuntu-18.04-2.1.2-x86_64.tgz
 [2.1.1,ubuntu18.04]: https://s3.amazonaws.com/quantcast-qfs/qfs-ubuntu-18.04-2.1.1-x86_64.tgz
 [2.1.0,ubuntu18.04]: https://s3.amazonaws.com/quantcast-qfs/qfs-ubuntu-18.04.1-2.1.0-x86_64.tgz
 
 [master,debian9]: https://s3.amazonaws.com/quantcast-qfs/qfs-debian-9-master-x86_64.tgz
+[2.1.3,debian9]: https://s3.amazonaws.com/quantcast-qfs/qfs-debian-9-2.1.3-x86_64.tgz
 [2.1.2,debian9]: https://s3.amazonaws.com/quantcast-qfs/qfs-debian-9-2.1.2-x86_64.tgz
 [2.1.1,debian9]: https://s3.amazonaws.com/quantcast-qfs/qfs-debian-9-2.1.1-x86_64.tgz
 [2.1.0,debian9]: https://s3.amazonaws.com/quantcast-qfs/qfs-debian-9-2.1.0-x86_64.tgz
 
 [master,centos6]: https://s3.amazonaws.com/quantcast-qfs/qfs-centos-6.10-master-x86_64.tgz
+[2.1.3,centos6]: https://s3.amazonaws.com/quantcast-qfs/qfs-centos-6.10-2.1.3-x86_64.tgz
 [2.1.2,centos6]: https://s3.amazonaws.com/quantcast-qfs/qfs-centos-6.10-2.1.2-x86_64.tgz
 [2.1.1,centos6]: https://s3.amazonaws.com/quantcast-qfs/qfs-centos-6.10-2.1.1-x86_64.tgz
 [2.1.0,centos6]: https://s3.amazonaws.com/quantcast-qfs/qfs-centos-6.10-2.1.0-x86_64.tgz
@@ -75,6 +82,7 @@ ideal for quickly trying out QFS as a Single Node deployment. See
 [1.0.1,centos6]: https://s3.amazonaws.com/quantcast-qfs/qfs-centos-6.7-1.0.1-x86_64.tgz
 
 [master,centos7]: https://s3.amazonaws.com/quantcast-qfs/qfs-centos-7.6-master-x86_64.tgz
+[2.1.3,centos7]: https://s3.amazonaws.com/quantcast-qfs/qfs-centos-7.6-2.1.3-x86_64.tgz
 [2.1.2,centos7]: https://s3.amazonaws.com/quantcast-qfs/qfs-centos-7.6-2.1.2-x86_64.tgz
 [2.1.1,centos7]: https://s3.amazonaws.com/quantcast-qfs/qfs-centos-7.5-2.1.1-x86_64.tgz
 [2.1.0,centos7]: https://s3.amazonaws.com/quantcast-qfs/qfs-centos-7.5.1804-2.1.0-x86_64.tgz
@@ -82,6 +90,7 @@ ideal for quickly trying out QFS as a Single Node deployment. See
 [1.2.0,centos7]: https://s3.amazonaws.com/quantcast-qfs/qfs-centos-7.2.1511-1.2.0-x86_64.tgz
 
 [master,macos]: https://s3.amazonaws.com/quantcast-qfs/qfs-darwin-master-x86_64.tgz
+[2.1.3,macos]: https://s3.amazonaws.com/quantcast-qfs/qfs-darwin-2.1.3-x86_64.tgz
 [2.1.2,macos]: https://s3.amazonaws.com/quantcast-qfs/qfs-darwin-2.1.2-x86_64.tgz
 [2.1.1,macos]: https://s3.amazonaws.com/quantcast-qfs/qfs-darwin-2.1.1-x86_64.tgz
 [1.2.1,macos]: https://s3.amazonaws.com/quantcast-qfs/qfs-darwin-1.2.1-x86_64.tgz
diff --git a/wiki/Release-Notes.md b/wiki/Release-Notes.md
index fc031e60a..f7ccab83b 100644
--- a/wiki/Release-Notes.md
+++ b/wiki/Release-Notes.md
@@ -1,3 +1,12 @@
+## QFS version 2.1.3
+
+Bug fixes
+----------------------------------------------
+1. Fix DNS resolver's number of open socket accounting bug. This bug might
+manifest itself in at least one non obvious way: chunk server might
+continuously fail to create or open chunk files if/when the open sockets counter
+becomes negative.
+
 ## QFS version 2.1.2
 
 New features