# New improvements to Firestore Security Rules

DevFeed: [New improvements to Firestore Security Rules](<https://devfeed.tech/articles/new-improvements-to-firestore-security-rules-16346.md>)

Original publisher: [Read original article](<https://firebase.blog/posts/2020/06/new-firestore-security-rules-features>)

Author: Rachel Myers

Published: 2020-06-17T00:00:00Z

Content type: article

Language: en

Sources: [Firebase Blog](<https://devfeed.tech/sources/firebase-blog.md>)

Topics: [Firestore](<https://devfeed.tech/topics/firestore.md>), [Security](<https://devfeed.tech/topics/security.md>), [Firebase](<https://devfeed.tech/topics/firebase.md>)

Tags: [firebase](<https://devfeed.tech/tags/firebase.md>), [firestore](<https://devfeed.tech/tags/firestore.md>), [improvements](<https://devfeed.tech/tags/improvements.md>), [launch](<https://devfeed.tech/tags/launch.md>), [security](<https://devfeed.tech/tags/security.md>), [security-rules](<https://devfeed.tech/tags/security-rules.md>), [update](<https://devfeed.tech/tags/update.md>)

## AI overview

Firebase describes improvements to Cloud Firestore and Cloud Storage Security Rules, including changes to the Rules language, better tools for writing and debugging rules, and increased size limits. The article highlights new Set and Map methods and support for local variables within functions.

## Source excerpt

News, tutorials, and updates from the Firebase team.