v2.40.0 (2026-09-04)

תקציר מקורי באנגלית<h2>What's Changed</h2> <h3>🚀 Features</h3> <ul> <li>Add <code>pydantic_ai.prices.update_in_background()</code> by <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/adtyavrdhn/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/adtyavrdhn">@adtyavrdhn</a> in <a class="issue-link js-issue-link" data-error-text="Failed to load title" data-id="4135003543" data-permission-text="Title is private" data-url="https://github.com/pydantic/pydantic-ai/issues/4841" data-hovercard-type="pull_request" data-hovercard-url="/pydantic/pydantic-ai/pull/4841/hovercard" href="https://github.com/pydantic/pydantic-ai/pull/4841">#4841</a></li> <li>Handle barge-in in the session: <code>handle_barge_in=True</code>,