# v1.7.0: Deep Research alpha, concurrent browsers

Deep Research open alpha with structured outputs, concurrent browsers raise rate limits, /extract no longer needs URLs, and crawl gets a depth option.

- Published: April 4, 2025

![v1.7.0 Release](/images/changelog/april4.webp)

### New Features

* **Deep Research Open Alpha**: Structured outputs + customizability.
* **Concurrent Browsers**: Improved rate limits for all users.
* **Compare Beta**: Figure what has changed in the website directly in /scrape and /crawl endpoints. Currently in closed beta.
* **/extract**: URLs are now optional.
* **/scrape**: Warns if concurrency-limited.
* **New Firecrawl Examples**: Featuring models like Claude 3.7, Gemini 2.5, Deepseek V3, Mistral 3.1, and more.
* **Crawl**: `maxDiscoveryDepth` option added.

### Fixes & Improvements

* Fixed **circular JSON error** in search.
* Reworked new **tally** system.
* Fixed sitemaps poisoning crawler with unrelated links.
* Crawler status retries added on failure (up to 3 times).
* Credit check now snaps to remaining credits if exceeded.
* Fixed path filtering bug in Map.
* Removed unsupported schema in `llmExtract`.

_Canonical HTML: https://www.firecrawl.dev/changelog/april4_

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### On This Topic
- [Changelog index](/changelog.md)
- [Newer entry: Firecrawl Launch Week III – Summary](/changelog/april28.md)
- [Older entry: Concurrent browsers and 5x higher rate limits](/changelog/mar12.md)