# evolution

## Mojaloop Evolution Workstream

This workstream is aimed at carrying out a significant evolution in Mojaloop's most critical central services:

* Replacing the accounting ledger functionality at the heart of Mojaloop with TigerBeetle.
* Replace the heart of the settlement engine with TigerBeetle functionality updating it with Settlement V3 capabilities.

## Business Justification

This workstream has strategic importance; TigerBeetle is the next generation ledger technology developed specifically with Mojaloop in mind, and offers the potential of a transaction throughput performance improvement of at least an order of magnitude.

### Contributors

|  Workstream Lead |                          Contributors                         |
| :--------------: | :-----------------------------------------------------------: |
| Michael Richards | <p>James Bush<br>Lewis Daley<br>Sam Kummary<br>Paul Makin</p> |

### Latest Update (Summary)

#### Forensic Audit

The forensic audit redesign is ready for implementation but awaits funding from forthcoming adoption projects. No significant progress is expected until mid-Q1 2026.

#### New Accounting Model

The new accounting model is broadly agreed and represents a major shift toward alignment with international accounting standards. This addresses concerns raised by global institutions and enhances Mojaloop’s credibility as a financial infrastructure platform. The initial target is TigerBeetle, though the team has not yet decided whether a MySQL version of the new model will also be produced.

#### TigerBeetle Integration

Given the accounting model’s increased complexity, TigerBeetle is the preferred ledger engine. Integration planning is underway, with work expected to begin before Christmas.

#### Settlement v3

Settlement v3 introduces deterministic settlement batches, addressing long-standing reconciliation challenges and enabling multi-scheme scalability. TigerBeetle will store settlement batch keys, while SQL components and admin APIs will require substantial enhancement to support model configuration, batch tracking, and settlement operations.

### Applicability

This version of this document relates to Mojaloop [Version 17.1.0](https://github.com/mojaloop/helm/releases/tag/v17.1.0)

### Document History

| Version |        Date        |   Author   |        Detail       |
| :-----: | :----------------: | :--------: | :-----------------: |
|   1.1   |  4th December 2025 | Paul Makin | Added latest update |
|   1.0   | 25th November 2025 | Paul Makin |   Initial version   |