Prysm version v6.1.2 is a recommended update for all node operators, containing important fixes that enhance peering, stability, and attestation performance on all networks.
Major Attestation Processing Overhaul
This release significantly improves the efficiency of attestation processing. Pending attestations are now processed immediately upon block arrival and are handled using optimized batch verification. This change dramatically reduces processing time, which could previously take several seconds for a large queue, leading to more effective attestation inclusion and improved overall node health.
Peering & Networking Fixes
Several fixes have been implemented to improve network stability and peer management:
- Improved Peer Compatibility: A fix has been implemented to prevent disconnecting from peers that have a different version for an unscheduled future fork (e.g., set to `FAR_FUTURE_EPOCH`). This improves network stability and peer counts.
- Accurate Peer Monitoring: A bug was fixed that caused disconnected peers to remain in the `connected_libp2p_peers` metric. Your monitoring dashboards will now show more accurate connected peer counts.
- Gossipsub Stability: An issue causing duplicate topic registrations, especially after initial sync, has been resolved.
Performance and Stability Enhancements
- Slasher Memory Usage: A 1-minute timeout was added to slasher database pruning operations. This prevents large transactions from causing out-of-memory errors, a risk for slashers that have been offline for extended periods.
- Optimized Validator Duties Endpoint: A performance regression in the `getduties v2` API has been fixed. The new implementation is significantly faster and uses considerably less memory, especially benefiting operators with a small number of validators.
- Light Client Compliance: Light client P2P messages are now broadcast with the spec-required ~4-second delay after the slot start time, improving network compatibility.
- Dependency Update: The `c-kzg-4844` library has been updated from v2.1.1 to v2.1.5.
Other Notable Fixes:
- API Cleanup: The `/eth/v1/config/spec` endpoint has been tidied up by removing Prysm-specific fields and correcting how omitted values are handled.
- SSZ-QL Support: Support was added for nested `List` types in SSZ-QL, enabling correct parsing of complex fields like `ExecutionPayload.transactions`.
## [v6.1.2](https://github.com/prysmaticlabs/prysm/compare/v6.1.1...v6.1.2) - 2025-10-10 This release has several important fixes to improve Prysm's peering, stability, and attestation inclusion on mainnet and all testnets. All node operators are encouraged to update to this release as soon as practical for the best mainnet performance. ### Added - Added a 1 minute timeout on PruneAttestationOnEpoch operations to prevent very large bolt transactions. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15746) - Added expected delay before broadcasting light client p2p messages. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15776) ### Changed - Replaced reflect.TypeOf with reflect.TypeFor. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15627) - Bazel builds with `--config=release` now properly apply `--strip=always` to strip debug symbols from the release assets. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15774) - Add sources for compute_fork_digest to specrefs. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15699) - Aggregate logs when broadcasting data column sidecars (one per root instead of one per sidecar). [[PR]](https://github.com/prysmaticlabs/prysm/pull/15748) - `c-kzg-4844`: Update from `v2.1.1` to `v2.1.5`. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15708) - Process pending attestations as soon as the block arrives. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15791) - Compare received LC messages over gossipsub with locally computed ones before forwarding. Also no longer save updates. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15783) - Optimize pending attestation processing by adding batching. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15801) ### Removed - removed unused configs and hides prysm specific configs from `/eth/v1/config/spec` endpoint. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15797) ### Fixed - SSZ-QL: Support nested `List` type (e.g., `ExecutionPayload.Transactions`). [[PR]](https://github.com/prysmaticlabs/prysm/pull/15725) - Fixing Unsupported config field kind; value forwarded verbatim errors for type string. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15773) - fix /eth/v1/config/spec endpoint to properly skip omitted values. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15777) - Fix ProduceSyncCommitteeContribution not returning error when committee index is out of range. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15770) - adding in improvements to getduties v2, replaces helpers.PrecomputeCommittees() ( exepensive ) with CommitteeAssignments. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15784) - Avoid unnecessary calls to `ExitInformation()`. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15764) - `inclusionProofKey`: Include the commitments in the key. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15795) - Do not reject peers if they have a mismatched version|digest when the next for epoch is FAR_FUTURE_EPOCH. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15798) - Don't include entries in the fork schedule if their epoch is set to far future epoch. Avoids reporting next_fork_version == <unscheduled fork>. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15799) - Wait for custody info to be initialized before querying them. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15804) - fixes level=error msg="Could not clean up dirty states" error="OriginBlockRoot: not found in db" prefix=state-gen error when starting in kurtosis. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15808) - Correctly clear disconnected peers from `connected_libp2p_peers` and `connected_libp2p_peers_average_scores`. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15807) - `buildStatusFromStream`: Respond `statusV2` only if Fulu is enabled. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15818) - Send our real earliest available slot when sending a Status request post Fulu instead of `0`. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15818) - switch to built-in min/max. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15817) - `findPeersWithSubnets`: If the filter function returns an error for a given peer, log an error and skip the peer instead of aborting the whole function. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15815) - `computeIndicesByRootByPeer`: If the loop returns an error for a given peer, log an error and skip the peer instead of aborting the whole function. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15815) - Fixed issue #15738 where separate goroutines assume sole responsibility for topic registration. [[PR]](https://github.com/prysmaticlabs/prysm/pull/15779)