Overledger 2.1.6 release


New release includes architectural changes for upcoming smart contract functionality

19 January 2022 - Quant’s Overledger is the world’s leading blockchain gateway providing interoperability between blockchains and a single API. Overledger 2.1.6 establishes the architecture that will be used to automatically create enterprise-grade smart contracts for payments.

There are no customer-facing changes in this release.

Coming soon
Quant’s enterprise-grade smart contracts coming in version 2.1.7 are highly secure and tested, developed by our team of PhDs and verified with our customers. They are designed for financial services applications including credit/debit payments, mint and burn capability, batched payments execution and with other controls for institutional use.

Quant’s smart contracts will be production-ready, meeting ISO/TC 307 standards for blockchain.

We focus on making blockchain technology easy to use. Overledger 2.1.7 will enable customers to create smart contracts for payments and tokenised money.

For more details, see the full release notes: Release Notes 2.1.6
Get started today: www.quant.network/developer-programme


Overledger 2.x

Overledger 1.x


OAuth 2.0 standard (allowing SSO)

Proprietary (BPI Keys)


In API, seamless updates

In SDK, re-download for updates


Full abstraction across all DLTs

Partial, DLT-specific edge cases

RCG Framework

REST / JSON APIs from OVL Core

Proprietary P2P (experimental)

Time to Deploy

32 minutes (CI / CD pipelines)

1-2 weeks

QNT Utility Token / Treasury

Optimised, audited smart contracts

Experimental smart contracts


Optimised to scale fast – 23 Microservices

Hardened proof of concept
– 9 Microservices

Transaction Routing Algorithm

6 factor, game theory optimised

Experimental P2P emergent


Cloud native (scaling / resilience)

Standalone DB deployments

Cross-DLT Implementation

REST API calls direct to OVL, integrated smart contract back end

SDK-based Javascript 
apps call smart contract functions
via OVL

2021 Achievements

50% Quant team has grown by over 50% and will continue to do so 

OVL1.0 to 2.0 Release schedule accelerated, moved to much more frequent automated updates
– Previously, last major update was seven months, then in early 2021 moved to three months (Jan and March)
and then to monthly (April and May). We’re now moving to fortnightly releases. 

2.5X Overledger is now 2.5x bigger (April)  

2.0 Re-engineered the entire 2.0 architecture

Open API 3.0 for easy integration into developer workflows

OAuth 2.0 for single sign on for enterprise customers    

Cloud Native Scalable and resilient already, now deployable automatically 

Native Transactions 

OVL 2.0 Developer portal 2.0