add release note for release 1.8

Signed-off-by: fisherxu <xufei40@huawei.com>

2 files changed, 99 insertions, 0 deletions

diff --git a/CHANGELOG/CHANGELOG-1.8.md b/CHANGELOG/CHANGELOG-1.8.md
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+
+  * [v1.8.0](#v180)
+     * [Downloads for v1.8.0](#downloads-for-v180)
+     * [KubeEdge v1.8 Release Notes](#kubeedge-v18-release-notes)
+        * [1.8 What's New](#18-whats-new)
+        * [Important Steps before Upgrading](#important-steps-before-upgrading)
+        * [Other Notable Changes](#other-notable-changes)
+        * [Bug Fixes](#bug-fixes)
+      
+
+# v1.8.0
+
+## Downloads for v1.8.0
+
+Download v1.8.0 in the [v1.8.0 release page](https://github.com/kubeedge/kubeedge/releases/tag/v1.8.0).
+
+## KubeEdge v1.8 Release Notes
+
+### 1.8 What's New
+
+**Active-Active HA Support of CloudCore for Large Scale Cluster [Beta]**
+
+CloudCore now supports Active-Active HA mode deployment, which provides better scalability support for large scale clusters.
+Cloud-Edge tunnel can also work with multiple CloudCore instances. 
+CloudCore now can add the iptable rules for Cloud-Edge tunnel automatically.
+
+Refer to the links for more details.
+([#1560](https://github.com/kubeedge/kubeedge/issues/1560), [#2999](https://github.com/kubeedge/kubeedge/pull/2999))
+
+
+**EdgeMesh Architecture Modification**
+EdgeMesh now has two parts: edgemesh-server and edgemesh-agent. The edgemesh-server requires a public IP address, when users use cross lan communication, 
+it can act as a relay server in the LibP2P mode or assist the agent to establish p2p hole punching. 
+The edgemesh-agent is used to proxy all application traffic of user nodes, acts as an agent for communication between pods 
+at different locations. 
+
+Refer to the links for more details.
+([#19](https://github.com/kubeedge/edgemesh/pull/19))
+
+**EdgeMesh Cross LAN Communication**
+Users can use cross LAN communication feature to implement cross LAN edge to edge application communication and 
+cross LAN edge to cloud application communication. 
+
+Refer to the links for more details.
+([#26](https://github.com/kubeedge/edgemesh/pull/26), [#37](https://github.com/kubeedge/edgemesh/pull/37), [#57](https://github.com/kubeedge/edgemesh/pull/57))
+
+
+**Onvif Device Mapper**
+
+Onvif Device Mapper with Golang implementation is provided, based on new Device Mapper Standard.
+Users now can use onvif device mapper to manage the ONVIF IP camera.
+
+Refer to the links for more details.
+([mappers-go#48](https://github.com/kubeedge/mappers-go/pull/48))
+
+**Kubernetes Dependencies Upgrade**
+
+Upgrade the vendered kubernetes version to v1.21.4, users now can use the feature of new version
+on the cloud and on the edge side. 
+
+Refer to the links for more details.
+([#3021](https://github.com/kubeedge/kubeedge/pull/3021), [#3034](https://github.com/kubeedge/kubeedge/pull/3034))
+
+
+### Important Steps before Upgrading
+
+**NOTE:** 
+In v1.8 EdgeMesh has been decoupled from edgecore and moved to [edgemesh](https://github.com/kubeedge/edgemesh) repo, if you are using EdgeMesh,
+Please install the latest version of edgemesh.
+
+Refer to the links for more details.
+([#2916](https://github.com/kubeedge/kubeedge/pull/2916))
+
+### Other Notable Changes
+
+- Refactor edgesite: import functions and structs instead of copying code ([#2893](https://github.com/kubeedge/kubeedge/pull/2893), [@liufen90](https://github.com/liufen90))
+- Avoiding update cm after created a new cm ([#2913](https://github.com/kubeedge/kubeedge/pull/2913), [@huang339](https://github.com/huang339))
+- Solved the checksum file download problem when ke was installed offline ([#2909](https://github.com/kubeedge/kubeedge/pull/2909), [@Rachel-Shao](https://github.com/Rachel-Shao))
+- cloudcore support configmap dynamic update when the env of container inject from configmap or secret ([#2931](https://github.com/kubeedge/kubeedge/pull/2931), [@rzyeleven](https://github.com/rzyeleven))
+- Remove edgemesh from edgecore ([#2916](https://github.com/kubeedge/kubeedge/pull/2916), [@fisherxu](https://github.com/fisherxu))
+- keadm: support customsized labels when use join command ([#2827](https://github.com/kubeedge/kubeedge/pull/2827), [@ttlv](https://github.com/ttlv))
+- support k8s v1.21.X ([#3021](https://github.com/kubeedge/kubeedge/pull/3021), [@gy95](https://github.com/gy95))
+- Handling node/*/membership/detail ([#3025](https://github.com/kubeedge/kubeedge/pull/3025), [@subpathdev](https://github.com/subpathdev))
+- sync the response message unconditionally ([#3014](https://github.com/kubeedge/kubeedge/pull/3014), [@sdghchj](https://github.com/sdghchj))
+- support default NVIDIA SMI command ([#2680](https://github.com/kubeedge/kubeedge/pull/2680), [@zc2638](https://github.com/zc2638))
+
+### Bug Fixes
+
+- modify the value of tunnel port ([#2876](https://github.com/kubeedge/kubeedge/pull/2876), [@muxuelan](https://github.com/muxuelan))
+- Fix message to apiserver ([#2883](https://github.com/kubeedge/kubeedge/pull/2883), [@qugq0228](https://github.com/qugq0228))
+- fix incorrect use of TrimLeft or TrimRight ([#2907](https://github.com/kubeedge/kubeedge/pull/2907), [@gy95](https://github.com/gy95))
+- cloudhub: fix signEdgeCert nil pointer ([#2935](https://github.com/kubeedge/kubeedge/pull/2935), [@zc2638](https://github.com/zc2638))
+- use UpdateDeviceStatusWorkers as updateDeviceStatus routines ([#3024](https://github.com/kubeedge/kubeedge/pull/3024), [@gy95](https://github.com/gy95))
+- Solve the concurrent map write for metaserver handler.go ([#2955](https://github.com/kubeedge/kubeedge/pull/2955), [@yz271544](https://github.com/yz271544))
+- Fixed modbus config parameters null value invalid ([#3049](https://github.com/kubeedge/kubeedge/pull/3049), [@TianTianBigWang](https://github.com/TianTianBigWang))
+- admission: fix pod toleration replace  ([#2848](https://github.com/kubeedge/kubeedge/pull/2848), [@zc2638](https://github.com/zc2638))
+- fix target kubeletendpoint port in metrics request ([#3010](https://github.com/kubeedge/kubeedge/pull/3010), [@cuirunxing-hub](https://github.com/cuirunxing-hub))
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diff --git a/CHANGELOG/README.md b/CHANGELOG/README.md
index fa8593df8..4488a323a 100644
--- a/CHANGELOG/README.md
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@@ -1,5 +1,7 @@
 # CHANGELOGs
 
+- [CHANGELOG-1.8.md](./CHANGELOG-1.8.md)
+- [CHANGELOG-1.7.md](./CHANGELOG-1.7.md)
 - [CHANGELOG-1.6.md](./CHANGELOG-1.6.md)
 - [CHANGELOG-1.5.md](./CHANGELOG-1.5.md)
 - [CHANGELOG-1.4.md](./CHANGELOG-1.4.md)