wrangler preview

The `wrangler preview` command has been updated to use multipart form data for module uploads, resolving deployment size limit issues. This change improves the reliability of preview deployments, especially for Workers with large sourcemaps.

The `wrangler preview` command now includes pull request metadata such as number, URL, repository URL, and title as annotations for preview deployments. This enhances the traceability of preview deployments within CI/CD pipelines.

This release introduces new features for Workflow instance retention, enhanced email testing, experimental PlanetScale database provisioning, and improved local development capabilities. It also adds pull request metadata to preview deployments and records build modes in configuration files.

Introduced container support for worker previews and automatically creates parent Workers for previews when they don't exist. Refactored deploy validation and output writing into shared helpers.

This patch release includes improvements to `wrangler preview` output and optimizes Durable Object migration resolution by fetching script metadata more efficiently.

This release introduces named tunnel support for stable local development hostnames via `wrangler dev`. It also includes several bug fixes, such as normalizing instance type aliases and ensuring worker preview bindings match deployment behavior for non-string variables.

This release introduces configurable HTTP caching for Workers and standardizes local development timezone to UTC to match production environments. Several bugs related to asset bindings in previews, type checking, and authentication listing were also resolved.

This release stabilizes the `secrets` configuration, enhances `wrangler deploy` with interactive prompts for missing configuration, and introduces support for `builtin` AI Search instances and custom metadata.

This release stabilizes the `wrangler containers` commands and fixes several issues related to network request blocking during startup and incorrect fetch error handling. It also updates the Python Workers runtime to correctly handle imported JS files as ESM modules.

This release introduces support for Preview deployments via `wrangler preview`, new commands for managing Browser Rendering sessions, and integrates Flagship feature flag binding support. It also enhances machine readability for JSON output by moving proxy notices to stderr and adds telemetry to the local REST API.