diff --git a/readme.md b/readme.md
index 2a9ab9a..3e9ddd5 100644
--- a/readme.md
+++ b/readme.md
@@ -7,6 +7,8 @@
 [![on-merge](https://github.com/open-feature/python-sdk/actions/workflows/merge.yml/badge.svg)](https://github.com/open-feature/python-sdk/actions/workflows/merge.yml)
 [![codecov](https://codecov.io/gh/open-feature/python-sdk/branch/main/graph/badge.svg?token=FQ1I444HB3)](https://codecov.io/gh/open-feature/python-sdk)
 
+> ⚠️ Initial development is in progress, but there has not yet been a stable, usable release suitable for the public. ⚠️
+
 This is the Python implementation of [OpenFeature](https://openfeature.dev), a vendor-agnostic abstraction library for evaluating feature flags.
 
 We support multiple data types for flags (numbers, strings, booleans, objects) as well as hooks, which can alter the lifecycle of a flag evaluation.