# Playwright v1.56.0 — Release & Upgrade Intelligence
- **Product:** Playwright (https://playwright.dev)
- **Version:** v1.56.0
- **Released:** Oct 06, 2025
- **Impact Score:** 7/10
- **Breaking Changes:** Source flagged
- **Canonical Analysis:** https://changelogs.us/playwright/updates/v1.56.0/

## Executive Summary (TL;DR)
Playwright v1.56.0. Source highlight: Introducing Playwright Agents, three custom agent definitions designed to guide LLMs through the core process of building a Playwright test:

## Breaking Changes & Deprecations
- Breaking Changes - Event [browserContext.on('backgroundpage')](https://playwright.dev/docs/api/class-browsercontext#browser-context-event-background-page) has been deprecated and will not be emitted. Method [browserContext.backgroundPages()](https://playwright.dev/docs/api/class-browsercontext#browser-context-background-pages) will return an empty list

## New Features
- Added `--test-list` and `--test-list-invert` to allow manual specification of specific tests from a file
- Added option to `'html'` reporter to disable the "Copy prompt" button
- Added option to `'html'` reporter and UI Mode to merge files, collapsing test and describe blocks into a single unified list
- Added option to UI Mode mirroring the `--update-snapshots` options
- Added option to UI Mode to run only a single worker at a time
- Added environment variable `PLAYWRIGHT_TEST` to Playwright worker processes to allow discriminating on testing status