Release History

Complete release history of Global Synchronizer software versions

This page provides a high-level overview of all Global Synchronizer software releases. For detailed notes per version, see Splice release notes.

Splice 0.5.x (Canton 3.4.x)

The 0.5.x series runs on Canton protocol version 34 and was introduced through CIP-0089, which required a synchronizer migration with downtime.

Version	Key changes
0.5.9	Minting delegation (CIP-0073), development fund coupon management
0.5.8	Fix topology transaction performance regression from 0.5.7
0.5.7	Development Fund (CIP-0082) Daml changes, async logging. Skip this version — performance regression
0.5.6	Sequencer performance improvements
0.5.5	API authorization tightening, custom party names for user onboarding
0.5.4	Fix pruning bug, fix event processing performance regression
0.5.3	Sequencer retry improvements, scan aggregate fixes. Skip 0.5.2 — accidental default pruning
0.5.1	Fix participant startup issue under high traffic
0.5.0	Canton 3.4 upgrade (synchronizer migration required), mediator pruning, HTTP proxy support

Splice 0.4.x (Canton 3.3.x)

The 0.4.x series runs on Canton protocol version 33. It introduced the Token Standard (CIP-0056), holding UTXO management, and the featured app activity markers API.

Version	Key changes
0.4.25	Fix participant startup issue (same as 0.5.1). Skip 0.4.24
0.4.23	Token standard wallet utilities (splice-util-token-standard-wallet.dar), holding UTXO management
0.4.22 and earlier	Various fixes and features leading up to Token Standard launch

Migration dumps from 0.4.x are not compatible with 0.5.8 and later. If you are still on 0.4.x, plan your upgrade path carefully and deploy without migration mode enabled.

Canton version history

Canton releases follow their own versioning. Each Splice series is built against a specific Canton minor version.

Canton series	Protocol version	Splice series
3.4.x	34	0.5.x
3.3.x	33	0.4.x

Individual Canton release notes are available in the Canton release notes directory.

Download links

Release bundles are published on the Splice GitHub releases page. Each release includes:

• {version}_splice-node.tar.gz — the Splice node bundle containing all components
• Docker images published to the container registry
• Helm charts for Kubernetes deployments