diff --git a/docs/_posts/2021-03-19-release-v2.2.2.md b/docs/_posts/2021-03-19-release-v2.2.2.md
index 86faa5cc4..1ba41133c 100644
--- a/docs/_posts/2021-03-19-release-v2.2.2.md
+++ b/docs/_posts/2021-03-19-release-v2.2.2.md
@@ -1,5 +1,5 @@
 ---
-title: "v2.2.2 - Bug Fixed"
+title: "v2.2.2 - It will be deleted soon"
 date: 2021-03-19 21:54:00 +0900
 categories:
   - Release
diff --git a/docs/_posts/2021-03-29-release-v2.2.3.md b/docs/_posts/2021-03-29-release-v2.2.3.md
index be62af936..9764562b9 100644
--- a/docs/_posts/2021-03-29-release-v2.2.3.md
+++ b/docs/_posts/2021-03-29-release-v2.2.3.md
@@ -1,5 +1,5 @@
 ---
-title: "v2.2.3 - Bug Fixed 2"
+title: "v2.2.3 - It will be deleted soon"
 date: 2021-03-29 23:08:00 +0900
 categories:
   - Release
diff --git a/docs/_posts/2021-04-01-release-v2.2.4.md b/docs/_posts/2021-04-01-release-v2.2.4.md
index c95bdb408..a88c8b4b1 100644
--- a/docs/_posts/2021-04-01-release-v2.2.4.md
+++ b/docs/_posts/2021-04-01-release-v2.2.4.md
@@ -1,5 +1,5 @@
 ---
-title: "v2.2.4 - Bug Fixed 3"
+title: "v2.2.4 - It will be deleted soon"
 date: 2021-04-01 23:08:00 +0900
 categories:
   - Release
diff --git a/docs/_posts/2021-04-03-release-v2.2.5.md b/docs/_posts/2021-04-03-release-v2.2.5.md
index bcdcecf6b..5681c7f91 100644
--- a/docs/_posts/2021-04-03-release-v2.2.5.md
+++ b/docs/_posts/2021-04-03-release-v2.2.5.md
@@ -1,5 +1,5 @@
 ---
-title: "v2.2.5 - Bug Fixed 4"
+title: "v2.2.5 - It will be deleted soon"
 date: 2021-04-03 14:20:00 +0900
 categories:
   - Release
diff --git a/docs/_posts/2021-04-09-release-v2.2.6.md b/docs/_posts/2021-04-09-release-v2.2.6.md
new file mode 100644
index 000000000..0b1f6ab1f
--- /dev/null
+++ b/docs/_posts/2021-04-09-release-v2.2.6.md
@@ -0,0 +1,93 @@
+---
+title: "v2.2.6 - HSS Cx Added"
+date: 2021-04-09 21:15:00 +0900
+categories:
+  - Release
+tags:
+  - News
+  - Release
+head_inline: "<style> ul { padding-bottom: 1em; } .blue { color: blue; }</style>"
+---
+
+#### New Features
+- [HSS] Cx Interface Added
+- [EPC] Added E-RABModificationIndication/E-RABModificationConfirm ([#834](https://github.com/open5gs/open5gs/issues/834)) -- [alf-askey](https://github.com/alf-askey) 
+- [ALL] Advertising address for all SBI and GTP-U interfaces ([#825](https://github.com/open5gs/open5gs/issues/825)) -- [infinitydon](https://github.com/infinitydon) 
+
+#### Enhancement
+- [MME/AMF] Added SACK_DELAY_TIME in the AMF/MME configuration files ([#895](https://github.com/open5gs/open5gs/issues/895)) -- [RafalArciszewski](https://github.com/RafalArciszewski) 
+- [DB] Updated Python Lib docs and script to migrate DB data to new format ([#889](https://github.com/open5gs/open5gs/pull/889)) -- [nickvsnetworking](https://github.com/nickvsnetworking) 
+
+#### Bug Fixes
+- [AMF] Fixed a crash when gNB with 40+ connected UE's disconnect ([#925](https://github.com/open5gs/open5gs/issues/925)) -- [Spectranis](https://github.com/Spectranis)
+- [WebUI] Fixed the installation script for solving the debian mongod dependency problem ([#915](https://github.com/open5gs/open5gs/issues/915)) -- [iman432](https://github.com/iman432)
+- [AMF] Fixed a crash for unknown timezone offset  ([#914](https://github.com/open5gs/open5gs/issues/914)) -- [iman432](https://github.com/iman432)
+- [AMF] Always Include Allow NSSAI in Registration accept ([#910](https://github.com/open5gs/open5gs/issues/910)) -- [chliny2016](https://github.com/chliny2016)
+- [freeDiameter] A crash has been fixed when using a version prior to v2.2.3 ([#898](https://github.com/open5gs/open5gs/issues/898)) -- [Nour963](https://github.com/Nour963), [kbarlee](https://github.com/kbarlee)
+- [AMF] Fixed a crash when a lot of number simultaneous connections occur. ([#886](https://github.com/open5gs/open5gs/issues/886)) -- [dongzx666](https://github.com/dongzx666)
+- [MME/AMF] Fixed a bug when S-TMSI does not exist in InitialUEMessage ([#890](https://github.com/open5gs/open5gs/issues/890)) -- [chliny2016](https://github.com/chliny2016) 
+- [MME] Fix an issue where Modify Bearer Request was not sent ([#885](https://github.com/open5gs/open5gs/issues/885)) -- [RafalArciszewski](https://github.com/RafalArciszewski) 
+- [PFCP/GTP] Fix to be able to ignore unknown TLV type ([#871](https://github.com/open5gs/open5gs/issues/871)) -- [infinitydon](https://github.com/infinitydon) 
+- [IMS] Fix the problem with managingg multiple calls ([#869](https://github.com/open5gs/open5gs/issues/869)) -- [ngvoice](https://github.com/ngvoice) 
+- [AMF] Fix creating allowed-NSSAI ([#859](https://github.com/open5gs/open5gs/issues/859)) -- [AniketTiw](https://github.com/AniketTiw) 
+- [5GC] When PDR is created without deleting session, there is a bug to create new PDR. ([#860](https://github.com/open5gs/open5gs/issues/860)) -- [kbarlee](https://github.com/kbarlee) 
+- [NSSF] Add default NSI configuration for NSSF ([#859](https://github.com/open5gs/open5gs/issues/859)) -- [AniketTiw](https://github.com/AniketTiw) 
+- [MME] Fixed the MME crash during HandoverCancel without Target eNB ([#855](https://github.com/open5gs/open5gs/issues/855)) -- [kuanghanqian](https://github.com/kuanghanqian) 
+
+#### IMPORTANT Using v2.2.x
+
+- **DB Schema Changes:** If you are using an existing subscription DB, you should delete the existing DB. Then you can add a new subscription DB.
+{: .blue}
+```
+$ mongo
+> use open5gs
+switched to db open5gs
+> db.subscribers.drop()
+true
+```
+
+- **The New WebUI:** You have to log out using the old WebUI backend/frontend. Then, you can log back in again using the new WebUI backend/frontend.
+{: .blue}
+```
+$ git checkout v2.1.7
+$ cd webui
+$ rm -Rf ./node_modules
+$ npm ci --no-optional
+$ npm run dev
+
+## You should log out
+
+$ git checkout main
+$ cd webui
+$ rm -Rf ./node_modules
+$ npm ci --no-optional
+$ npm run dev
+
+## You can log back in
+```
+
+- freeDiameter version has changed from 1.3.2 to 1.5.0. If you want to compile the source code, you need to update meson subprojects as shown below.
+{: .blue}
+
+```
+$ cd open5gs
+$ git pull
+$ meson subprojects update
+$ cd build
+$ ninja
+```
+
+Or just use a clean github repository.
+
+```
+$ rm -Rf open5gs
+$ git clone https://github.com/open5gs/open5gs
+$ cd open5gs
+$ meson build --prefix=`pwd`/install
+$ cd build
+$ ninja
+```
+
+
+Download -- [v2.2.6.tar.gz](https://github.com/open5gs/open5gs/archive/v2.2.6.tar.gz)
+{: .notice--info}