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Upcoming Features

Below are the more notable features the protocol development team is considering for implementation. In addition to these items there are always other updates, optimizations and new features added in. We encourage participation on GitHub for anyone capable of contributing to the code base.

Changes made to this document are tracked at the bottom in the Recent changes section.

Status Details
In Progress In active development to be included in upcoming releases
Planning Planning for development with solution design and further scope evaluation
Researching Under research to identify potential benefits and likely effort levels

In Progress

Node Telemetry
Release V21 (Targeted)
Goal Provide methods for nodes to report block count, bandwidth caps, version numbers, node vendor versions and more.
Benefits Better monitoring of network status and upgrades progress.
Links Forum Discussion - GitHub Issue #2225
IPC Flatbuffers API
Release V21 (Targeted)
Goal Add new internal and external APIs for the node using Flatbuffers over IPC.
Benefits Faster performance and lower memory usage, allows streaming.
Links WIP Documentation
RocksDB Improvements
Release V21 (Targeted)
Goal Optimizations, fixes and adjustments to the RocksDB implementation.
Benefits Better disk performance and early work leading up to potential production release in V22+.
Links Forum Discussion
Lazy Bootstrap Optimizations
Release V21 (Targeted)
Goal Optimizations, fixes and adjustments to Lazy Bootstrapping.
Benefits Reduced bandwidth and reliance on legacy bootstrapping.
Links N/A
Better election alignment
Release V21 (Targeted)
Goal Adjust elections process for better alignment of active elections across the network.
Benefits Better performance during heavy load with reduced bandwidth.
Links N/A


Dual-phase voting
Release V22+ (Targeted)
Goal Use a dual-phased voting approach: first is a negotiation phase to gather network consensus, and then second is issuing a final, durable vote that cannot be re-negotiated.
Benefits Blocks cemented after durable vote and allowing durable vote snapshots.
Move wallet out of process
Release V22 (Targeted)
Goal Remove wallet operations out of node process.
Benefits Reduced node attack surface.
RPC 2.0
Release V22 (Targeted)
Goal Refactor RPC implementation while removing unnecessary and adding new, more useful endpoints.
Benefits Better RPC performance, more consistent input and output handling and expanded functionality.
Links Forum Discussion
Ledger pruning
Release V23 (Targeted)
Goal Allow optional pruning of ledger blocks down to frontier, frontier predecessor and pending blocks.
Benefits Reduce ledger size on disk and lower requirements for nodes joining the network.
Links Forum Discussion - GitHub Issue #1094


New PoW algorithm
Release TBD
Goal Design a new Proof-of-Work (PoW) algorithm to be more memory bound.
Benefits Increase Quality of Service on network through increased spam cost.
Links Forum Discussion - GitHub Issue #506
Network overlay (DHT-based)
Release V22+
Goal Provide a structured network overlay of nodes on the network through a distributed hash table.
Benefits Decreased connection count for nodes, better Distributed Denial-of-Service (DDoS) protection and reduced network bandwidth.
Links Forum Discussion
Durable vote snapshots
Release V23+ (Targeted)
Goal Provide methods for export and importing snapshots of durable votes between nodes.
Benefits Easier bootstrap verification through dependence on durable votes plus frontier elections only.
Links N/A
QUIC protocol
Release TBD
Goal Determine if QUIC protocol is a viable alternative to UDP and TCP for live network activity
Benefits More efficient traffic handling for live network.
Links N/A
Local account priority bootstrapping
Release TBD
Goal Allow bootstrapping of local accounts first.
Benefits Nodes can send/receive Nano before fully synced.
Links GitHub Issue #1731



New PoW infrastructure

Release V20
Goal Setup the necessary infrastructure for standalone PoW server and easy algorithm integration in future release.
Benefits Increased security, faster PoW algorithm updates in future release and better resource management options.

Initial support for RocksDB

Release V20
Goal Add support for a new database backend using RocksDB (experimental).
Benefits Lower disk I/O operations and increase disk I/O speeds on average.

Migrate to TOML config files

Release V20
Goal Migrate existing config files to be TOML format, split into read-only and override files.
Benefits Allows easier to read config files with ability to add comments in the file. Prevents node from having to write over the same user managed config file.

TCP network overlay

Release V19 Solidus
Goal Provide support for live traffic over TCP, keeping UDP as a fallback mechanism.
Benefits Decrease amount of traffic and connections nodes need to maintain and reduce resource usage and increase higher peak TPS capabilities
Links GitHub PR #1962 - V19 Solidus Feature Analysis (Medium)

Confirmation Height

Release V19 Solidus
Goal Track height of confirmed blocks per account and confirm dependent elections based on this height.
Benefits Provide simpler block confirmation procedures, reduce network voting and confirmation traffic, and provide easier implementation of various future features.
Links GitHub PR #1770 - Looking up to Confirmation Height (Medium) - V19 Solidus Feature Analysis (Medium)

Dynamic Proof-of-Work (PoW) and Prioritization

Release V19 Solidus
Goal Capture work difficulty levels on the network and adjust wallet work generation dynamically when delays in confirmation for locally published blocks are experienced. Also include dropping of active transactions failing to confirm quickly.
Benefits Reduce impacts to regular users during spam attacks and increase cost of spam attacks.
Links GitHub PR #1990 - GitHub PR #1858 - V19 Solidus Feature Analysis (Medium)

Out of node process RPC

Release V19 Solidus
Goal Remove RPC operations out of node process.
Benefits Reduced node attack surface as signing keys no longer in the same memory space as network and ledger code.
Links GitHub PR #1857 - V19 Solidus Feature Analysis (Medium)

Bandwidth throttling

Release V19 Solidus
Goal Provide configuration options for nodes to limit bandwidth resource usage.
Benefits More control over resource consumption for node operators and to provide a metric for analyzing more objectively the TPS capabilities of the network.
Links N/A

Recent Page Updates


Feature Previous New Reason
Dual-phase voting V21 V22+ Aligning with network overlay
Move wallet out of process V21 V22 Other higher priority items needed
Node Telemetry Planning In Progress Including in V21 release
Protobuf based RPCs Planning Removed Replaced with IPC Flatbuffers API
IPC Flatbuffers API - In Progress (V21 Targeted) Get foundation ready for RPC 2.0 in V22
RocksDB Improvements - In Progress Additional updates ahead of potential production release in V22+
Lazy Bootstrap Optimizations - In Progress Reduced reliance on less efficient legacy bootstrapping
Better election alignment - In Progress Based on optimization opportunities found during V20 beta testing
Other past changes


Feature Previous New Reason
New PoW algorithm In Progress Researching Researching alternatives
Initial support for RocksDB In Progress Completed V20.0 release
Migrate to TOML config files In Progress Completed V20.0 release


Feature Previous New Reason
New PoW algorithm In Progress Researching Continuing research into algorithm design
Initial support for RocksDB - In Progress Recently split from algorithm into separate scope


Feature Previous New Reason
New PoW algorithm Researching V20 Recently prioritized
Initial support for RocksDB - V20 Recently prioritized
Migrate to TOML config files - V20 Recently prioritized
Dual-phase voting target V20 V21 Moved in favor of New PoW Algorithm for V20
Move wallet out of process V20 V21 Moved in favor of New PoW Algorithm for V20
Durable vote snapshots V20 V22+ Lower anticipated ROI vs. other features
Protobuf based RPCs V21 V22 Reduce previous version scope
RPC 2.0 V21 V22 Reduce previous version scope
Ledger Pruning V21 V23 Reduce previous version scope and allow further evaluation
QUIC Protocol V22+ TBD Allow further evaluation


  • Moved Local account priority bootstrapping item into Research section with unknown feature target. Updates related to this are targeted for V20: better prioritization of bootstrap accounts using a pre-calculated list of high depth accounts packaged with the node release


  • Moved V19 items into new Completed section
  • Moved targeted V20 items into In Progress section


  • Confirmed-only bootstrapping removed from list - the complexity and effort level of this feature for the provided benefits didn't align to implement on its own at this time. Situations that may warrant such a change, including long strings of forked blocks, will be monitored on the network and if seen, this feature will be reevaluated for inclusion in the future.


  • Protobuf based RPCs target moved from V20 to V21
  • RPC 2.0 target moved from V20 to V21