v2.17.0

Ledger
Studio

Ledger release v2.17.0

Release date STG: November 20, 2024

Release date PRD: November 28, 2024

OAuth support for bridges

As mentioned in About Bridges , the secure property for a bridge describes the mechanism used for accessing the bridge from ledger. This functionality was not implemented until now.

It was not possible to secure the communication between ledger and bridge and the only options available to guarantee security were JWT tokens and verifying in the bridge that the messages for each endpoint are signed by ledger.

Now, we implemented the option to define secrets directly in the bridge record by using a new secret field.

Detailed documentation is still pending and will be added as soon as possible.

Settlement and scheduling

In the previous release we added support for scheduling and in this release it is improved and extended with support for scheduling settlement reports.

As part of the settlement process, we added support for filters in bridge traits.

Detailed documentation is still pending and will be added as soon as possible.

Intent statuses management

Each intent status is calculated by the ledger from the present proofs, where, for example, an intent becomes prepared once both source and target sign a proof saying they are prepared, and then ledger creates a final proof. This requirement for everyone to prepare was basically hardcoded into the DTC logic of 2-phase-commit (2PC) for intents even though it is not explicitly expressed.

We made a change so it is expressed through a policy. This means that ledger user with proper permissions can now configure status policies for shaping the intents’ processing flow.

Layouts documentation

We added documentation for the layouts, new ledger functionality that defines templates for creating or updating ledger records.

Documents added:

Improvements & Fixes

fixed security issues in lib dependencies
added support for $nin operator in actions, records and filters
updated RTP layouts to support settlement
improved filtering to allow partial matches for circles
refactored access builder and access service
implemented caching records in access builder
- this is a temporary solution until we use a distributed cache in our architecture
fixed bug when status was set to created when updating record from CLI
improved rtp-e2e-tests with adding new tests and descriptions
fixed bug where ledger was throwing core.unexpected-error instead of a valid error for the case when target wallet was not specified correctly
added testing of our published libs in CI
improved CLI server conection, i.e. usage of command minka server connect
- purpose of this was to enable connection to ledger using a proxy URL
changed Executed effect action message in dispatcher service to scheduled effect action message
enabled setting record status based on proofs with custom.status field in create requests

Studio release v2.17.0

Release date STG: November 20, 2024

Release date PRD: November 28, 2024

Studio localization

Studio is the tool for administrators and participants in a payment system based on Ledger to interact in an easy and friendly manner with ledger configuration, onboarding, and operating process.

Currently, most customers are clearinghouses from Republica Dominicana and Colombia. Their operations and security teams sometimes struggle to understand systems that are not localized to Spanish language.

We introduced to option for localization and localized the Studio to Spanish language. Users can now (in Settings section) choose between English and Spanish.

Settlement and scheduling

In the previous release we added support for scheduling and in this release it is improved and extended with support for scheduling settlement reports.

Detailed documentation is still pending and will be added as soon as possible.

Improvements & Fixes

improved filtering of records in Studio by removing lag
added search option for drop downs with long lists

v2.17.0

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