From 767b2669d222bf6c14debc94697356e48be83e98 Mon Sep 17 00:00:00 2001 From: Max Isbey <224885523+maxisbey@users.noreply.github.com> Date: Thu, 15 Jan 2026 15:14:54 +0100 Subject: [PATCH] Add v2 development warning to README Add an important notice to the README indicating that the main branch contains v2 of the SDK which is currently in development (pre-alpha). The warning recommends v1.x for production use and links to the v1.x branch for documentation and code. This matches the warning added to the TypeScript SDK README. Claude-Generated-By: Claude Code (cli/claude-opus-4-5=100%) Claude-Steers: 0 Claude-Permission-Prompts: 1 Claude-Escapes: 0 --- README.md | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/README.md b/README.md index e7a6e955b9..68033eeb75 100644 --- a/README.md +++ b/README.md @@ -13,6 +13,13 @@ +> [!IMPORTANT] +> **This is the `main` branch which contains v2 of the SDK (currently in development, pre-alpha).** +> +> We anticipate a stable v2 release in Q1 2026. Until then, **v1.x remains the recommended version** for production use. v1.x will continue to receive bug fixes and security updates for at least 6 months after v2 ships to give people time to upgrade. +> +> For v1 documentation and code, see the [`v1.x` branch](https://github.com/modelcontextprotocol/python-sdk/tree/v1.x). + ## Table of Contents