CLI development branch

Author: dandavison

docs/develop/python/standalone-activities.mdx

@@ -59,7 +59,9 @@ This documentation uses source code derived from the [Python sample](https://git
 
 Prerequisites:
 
-- [Install the latest Temporal CLI](https://docs.temporal.io/develop/python/core-application#run-a-development-server)
+- Install the latest Temporal CLI
+
+  🚧 Please build from development branch: https://github.com/temporalio/cli/tree/release/v1.6.x-standalone-activity
 - [Install the latest Temporal Python SDK](https://docs.temporal.io/develop/python/set-up-your-local-python#install-the-temporal-python-sdk)
 
 The first step in running a Standalone Activity involves starting a Temporal server.