The state of Gossamer May

[P1sar]

The state of Gossamer May

Highlights

In May, we reconnected with JAM developers at JAM Experience Lisbon 2025. We delivered an impromptu status update presentation and engaged in collaborative hacking and idea-sharing sessions. One evening, we also had the opportunity to visit a JAM Toaster.

Progress has been made on several fronts, including the ongoing implementation of ELVES, the integration of GRADNPA, and the optimization of db.Backend. Furthermore, we are steadily advancing our JAM and PVM implementations.

Development

Polkadot finality

Timothy continued working on the integration of the GRANDPA package into the existing Gossamer codebase.

Polkadot Storage

Diego continued integrating the refactored db.Backend into our codebase.

Polkadot ELVES Implementation

Axay is working on Collator protocol for valiator and Provisioner subsystems
The Collator Protocol implements the network protocol by which collators and validators communicate. It is used by collators to distribute collations to validators and used by validators to accept collations by collators.
Provisioner is a utility within the Polkadot blockchain node that handles the initial setup and provisioning of on-chain data.

Freddy designed a CusterTrack that provides direct distribution of unbacked candidates within a validators group. Also he finished Gossip support subsystem that is responsible for keeping track of session changes and issuing a connection request to the relevant validators on every new session.

Haiko started working on a GridTracker for Statement distribution subsystem.
Grid tracker is a data struct that stores authorities for a given relay parent.

JAM Protocol Implementation

Jimmy was working on block importing logic and doing some research on JAM-NP

Eclesio was doing his research on PVM recompilation. You can learn more abut PVM recompilation is this presentation from JAM Experience Lisbon

Karan was finishing on implementing Host functions for PVM communication with host as well as doing updates to PVM memory management to work with multiple memory pages