---
title: "Announcing FollowTheMoney 4.0"
summary: "This week, we are releasing version 4.0 of the FollowTheMoney (FtM) toolchain."
url: "https://www.opensanctions.org/articles/2025-07-13-followthemoney/"
date_created: "2025-07-13T14:33:50.176Z"
date_updated: "2025-08-17T08:24:28.035Z"
tags: ["FollowTheMoney","OpenSource","Stack"]
image: "https://www.opensanctions.org/assets/9483f7a8-b7cf-4440-ae54-c90b2e059ada/"
---

FtM is the software framework and [data model specification](https://followthemoney.tech/explorer/schemata/) underpinning OpenSanctions, and the broader [Aleph ecosystem](https://followthemoney.tech/community/projects/).

The release has three main objectives: productising the [dataset metadata](https://followthemoney.tech/docs/metadata/) and [statement data format](https://followthemoney.tech/docs/statements/) pioneered by OpenSanctions in the last four years, removing several deprecated properties and entity schemata, and creating a more coherent stack of Python libraries for data cleaning and alignment. The [technical release notes]() give more detail. This is also the first major release to include [Java bindings](https://javadoc.io/doc/tech.followthemoney/followthemoney/latest/overview-tree.html) that make it easy to consume and interpret entity data in JVM-based applications.

<img class="img-fluid" style="object-fit: contain;" src="/assets/9483f7a8-b7cf-4440-ae54-c90b2e059ada">
<p class="img-caption"><em>Follow the money</em> has been the informal motto of white collar investigators for generations. <a href="https://www.youtube.com/watch?v=ShWe-4mtV8w">Three minutes</a> from HBO's show <em>The Wire</em> explain the process perfectly.</p>

The [revamped documentation](https://followthemoney.tech/docs/) for FollowTheMoney includes detailed guidance on how to produce and consume entities and graph relationships.

FtM 4.0 is also a milestone on the path towards the next major version of [OpenAleph](https://openaleph.org/), an open source data analysis platform used by investigators in media and non-profits. Our friends at the [Data and Research Center](https://dataresearchcenter.org/) are starting significant work to bring statement-based provenance and simplified import of FtM datasets to the platform in the coming months.

Going forward, we are excited that FtM will continue to evolve as a [community of practice](https://followthemoney.tech/community/stack/) for people and organisations working on investigative knowledge graphs, and a place for building shared infrastructure to fight financial crime.

Thanks to [Till Prochaska](https://github.com/tillprochaska), [Simon Wörpel](https://dataresearchcenter.org/who-we-are/), [Klil Eden](https://www.occrp.org/en), and the OpenSanctions engineering team for their contributions to this release. 

* Read the [release notes](https://github.com/opensanctions/followthemoney/releases/tag/v4.0.0).
* Visit the [home page](https://followthemoney.tech/).
* Slide deck [about FollowTheMoney](https://docs.google.com/presentation/d/1vMBkOAhfZ1fzdhiKCDKkS_RDiq_KxKgvMfTGfaPzD1w/edit?slide=id.g31d277ec63a_0_12#slide=id.g31d277ec63a_0_12) from ConnectedData London 2024
* Python: `pip install followthemoney`
* TypeScript: `npm install @opensanctions/followthemoney`
* Java: `tech.followthemoney:followthemoney`
* Report issues and share your ideas on the [GitHub repository](https://github.com/opensanctions/followthemoney)
