@@ -24,5 +24,12 @@ Also, if you have some related to us, welcome to submit a pull request to add.
if you see some problem.
Or better yet, submit your own contributions through pull request to help make them better.
___
### Users from 5.x
SkyWalking 5.x is still supported by the community. For the user plans to upgrade from 5.x to 6.x, you should know there are some definitions of concepts changed.
The most important two changed concepts are
1. Applciation(in 5.x) is changed to **Service**(in 6.x), also Application Instance is changed to **Service Instance**.
1. Service(in 5.x) is changed to **Endpoint**(in 6.x).
