diff --git a/debian/changelog b/debian/changelog
index d2936ac806..2b710cba23 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,21 @@
+open5gs (2.1.6) unstable; urgency=medium
+
+  * Bug Fixed
+
+ -- Sukchan Lee <acetcom@gmail.com>  Thu, 04 Feb 2021 09:18:13 -0500
+
+open5gs (2.1.6~bionic1) bionic; urgency=medium
+
+  * Bug Fixed
+
+ -- Sukchan Lee <acetcom@gmail.com>  Thu, 04 Feb 2021 09:17:04 -0500
+
+open5gs (2.1.6~focal1) focal; urgency=medium
+
+  * Bug Fixed
+
+ -- Sukchan Lee <acetcom@gmail.com>  Thu, 04 Feb 2021 09:14:17 -0500
+
 open5gs (2.1.5) unstable; urgency=medium
 
   * Bug Fixed
diff --git a/docs/_pages/about.md b/docs/_pages/about.md
index 416467d026..4b81dcdc81 100644
--- a/docs/_pages/about.md
+++ b/docs/_pages/about.md
@@ -14,15 +14,18 @@ Open5GS is a C-language Open Source implementation of 5GC and EPC, i.e. the core
 - Support of USIM cards using Milenage
 - IPv6 support
 - Multiple PDU session
-- S1/X2 and Xn Handover
+- Handover(5GC Xn/N2 and EPC S1/X2)
 - CSFB(Circuit Switched Fall Back) and SMSoS(SMS Over SGs)
 - VoLTE(Voice over LTE)
 
 #### Known Limitations
 ---
 
-- No OCS/OFCS
+- No NSSF
+- No VoNR(Voice over NR)
+- No Interworking with EPC
 - No NB-IoT
+- No OCS/OFCS
 - No eMBMS
 - No SRVCC
 - No Roaming
diff --git a/docs/_posts/2021-02-04-release-v2.1.6.md b/docs/_posts/2021-02-04-release-v2.1.6.md
new file mode 100644
index 0000000000..50073c9872
--- /dev/null
+++ b/docs/_posts/2021-02-04-release-v2.1.6.md
@@ -0,0 +1,16 @@
+---
+title: "v2.1.6 - 5G Core Hotfix"
+date: 2021-02-04 09:20:00 -0500
+categories:
+  - Release
+tags:
+  - News
+  - Release
+head_inline: "<style> ul { padding-bottom: 1em; } </style>"
+---
+
+#### Bug Fixes
+- [AMF] Crash during handling duplicated PDU Session ID ([#793](https://github.com/open5gs/open5gs/issues/783)) -- [kuanghanqian](https://github.com/kuanghanqian)
+
+Download -- [v2.1.6.tar.gz](https://github.com/open5gs/open5gs/archive/v2.1.6.tar.gz)
+{: .notice--info}
diff --git a/meson.build b/meson.build
index 0d8ac942c7..8447106b89 100644
--- a/meson.build
+++ b/meson.build
@@ -16,7 +16,7 @@
 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
 
 project('open5gs', 'c',
-    version : '2.1.5',
+    version : '2.1.6',
     license : 'AGPL-3.0-or-later',
     meson_version : '>= 0.43.0',
     default_options : [
@@ -24,7 +24,7 @@ project('open5gs', 'c',
     ],
 )
 
-libogslib_version = '2.1.5'
+libogslib_version = '2.1.6'
 
 prefix = get_option('prefix')
 bindir = join_paths(prefix, get_option('bindir'))