Install hanzoai>=8, so an older Python refuses instead of installing 2.1

hanzoai 8 requires Python 3.12, and PyPI serves 2.1.3 to 3.9-3.11. An
unpinned `pip install hanzoai` there installed the 2.1 client without a word,
and every example here failed on `from hanzoai.cloud import ...`. Every install
line now carries the floor, which pip 21 on Python 3.9 answers with "No
matching distribution found for hanzoai>=8", and the quickstart no longer says
Python 3.9.

Co-authored-by: Hanzo Dev <[email protected]>

README.md

@@ -13,12 +13,13 @@ of the document this tree was cut from.
 Python 3.12 or newer.
 
 ```bash
-pip install hanzoai
+pip install "hanzoai>=8"
 ```
 
-On Python 3.9, 3.10 and 3.11 pip installs the 2.1 line instead, without an
-error. That is an older client with a different API (`from hanzoai import
-Hanzo`, key in `HANZO_API_KEY`), and nothing below applies to it.
+The floor is load-bearing. Without it, pip on Python 3.9, 3.10 and 3.11 installs
+the 2.1 line instead, without an error: an older client with a different API
+(`from hanzoai import Hanzo`, key in `HANZO_API_KEY`) that nothing below applies
+to. With it, pip refuses.
 
 Check the install without a credential — `GET /v1/models` needs none:
 

docs/content/docs/installation.mdx

@@ -13,19 +13,19 @@ description: How to install the Hanzo Python SDK
 ### Using pip
 
 ```bash
-pip install hanzoai
+pip install "hanzoai>=8"
 ```
 
 ### Using uv (Recommended)
 
 ```bash
-uv pip install hanzoai
+uv pip install "hanzoai>=8"
 ```
 
 ### Using poetry
 
 ```bash
-poetry add hanzoai
+poetry add "hanzoai>=8"
 ```
 
 ## Optional Packages

docs/content/docs/quickstart.mdx

@@ -12,13 +12,13 @@ This guide will help you make your first API call with the Hanzo Python SDK.
 
 ## Prerequisites
 
-- Python 3.9 or higher
+- Python 3.12 or higher
 - A Hanzo API key (get one at [hanzo.ai](https://hanzo.ai))
 
 ## Installation
 
 ```bash
-pip install hanzoai
+pip install "hanzoai>=8"
 ```
 
 ## Set Your API Key