Start new python version

Author: cpsievert

pkg-py/CHANGELOG.md

@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
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 ## [0.1.0] - 2025-08-07
 
 This first release of the `shinychat` package simply copies the `Chat` and `MarkdownStream` components exactly as they are in version 1.4.0 of `shiny`. Future versions of `shiny` will import these components from `shinychat`. By maintaining these components via a separate library, we can ship features more quickly and independently of `shiny`.