docs (#812)

README.md

@@ -1,5 +1,13 @@
 ![zrok logo](docs/images/zrok_cover.png)
 
+**Note: If you upgrade to `v1.0.0` and you receive an error message like this:**
+
+```
+[ERROR]: unable to create share (error getting zrok client: client version error accessing api endpoint 'https://api.zrok.io': [POST /clientVersionCheck] clientVersionCheck (status 404): {}: [POST /clientVersionCheck] clientVersionCheck (status 404): {})
+```
+
+Use the command `zrok rebase apiEndpoint https://api-v1.zrok.io/` to update your environment for the `v1.0.0` release.
+
 ## Your Secure Internet Sharing Perimeter
 
 `zrok` is a next-generation, peer-to-peer sharing platform built on top of [OpenZiti](https://docs.openziti.io/docs/learn/introduction/), a programmable zero-trust network overlay. `zrok` is a _Ziti Native Application_.

docs/getting-started.mdx

@@ -14,6 +14,16 @@ import InstallCards from '/../docs/guides/install/_install_cards.mdx';
 `zrok` (*/ziːɹɒk/ ZEE-rock*) is a secure, open-source, self-hostable sharing platform that simplifies shielding and sharing network services or files.
 There's a hardened zrok-as-a-service offering available at [myzrok.io](https://myzrok.io) with a generous free tier.
 
+:::note
+If you've upgraded from `v0.4.x` and you receive an error message like this:
+
+```
+[ERROR]: unable to create share (error getting zrok client: client version error accessing api endpoint 'https://api.zrok.io': [POST /clientVersionCheck] clientVersionCheck (status 404): {}: [POST /clientVersionCheck] clientVersionCheck (status 404): {})
+```
+
+Use the command `zrok rebase apiEndpoint https://api-v1.zrok.io/` to update your environment to the latest zrok endpoint.
+:::
+
 ### Your First Share
 
 1. Get an account token