News for Developers

CrypTen: A Contributor’s Story with Scott Moses Sunarto

The “Contributor’s Story” series is intended to provide a face and voice to our major open source ccontributors and community members, an overview of the projects they are working on, and the successes and challenges contributors face when developing. ...

Open Source 2021

April 13, 2021

Announcing expanded functionality in Limited Login

Today, we’re announcing that we have expanded Limited Login functionality to include the user_friends, user_birthday and user_age_range permissions, which are currently in beta. To implement the current version of Limited Login with support for user_friends, user_birthday and user_age_range, update your Facebook iOS SDK to version 9.2+ or Facebook...

Business Tools 2021

April 12, 2021

Facebook is an Open Source Ally

Facebook is an ally for inclusion in open source, and we are committed to fostering inclusive environments for all who wish to participate in open source communities. As part of this effort, we’re making a few changes to how we engage with the open source communities we are part of and how our own open source projects are maintained. First, we're...

Open Source 2021

April 12, 2021

The Rust Starlark library

We’re excited to announce our open-source Rust library for working with the Starlark programming language, including a parser, evaluator, linter and debugger. Starlark as a configuration languageStarlark is a programming language designed for configuring applications. It sits between a full programming language (like Python) and a configuration...

Open Source 2021

April 8, 2021

Moving from a 32 to 64 bit limit for Potential Reach

Today we’re introducing a new field called approximate_count_64bit on the Marketing API’s Saved Audience endpoint, which supports larger numbers, updating the previous bit limit on the global potential reach estimate that will replace the current approximate_count field. When querying data from this endpoint, use approximate_count_64bi instead of...

Business Tools 2021

April 6, 2021

WebXR: A Contributor’s Story with Zhixiang Teoh

The “Contributor’s Story” series is intended to provide a face and voice to our major contributors and community members, an overview of the projects they are working on, and the successes and challenges contributors face when developing. ...

Open Source 2021

April 6, 2021

Facebook Open Source introduces the MLH Fellowship Class of Spring 2021

Facebook Open Source is continuing to partner with GitHub and Major League Hacking (MLH) in 2021 on the MLH Fellowship program: a 12-week remote fellowship designed to host, mentor, and support developers hacking on open source projects. For Facebook, investing in open source is a way to empower developers as well as broader communities of...

Open Source 2021

March 31, 2021

ELI5: Buck - Modular Build System

In this post, we explain Buck, a high-performance build tool, in a way that is super simple to understand (or as it’s commonly known online, ELI5). If you're interested in learning by watching or listening, check out a video about this open source project on our Facebook Open Source YouTube channel.Why Buck? It’s a well-known fact that managing ...

Open Source 2021

March 29, 2021

Announcing upcoming support for user_friends, user_birthday and user_age_range in Limited Login

Today, we’re announcing that we are actively working to add user_friends, user_birthday and user_age_range to Limited Login in early spring 2021. Limited Login is based on the OpenID Connect Standard and when using this limited version of Facebook Login, the fact that a person used Facebook Login with this iOS app will not be used to personalize...

Business Tools Developer Policy

March 23, 2021