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## 2023-02-15 v0.15.0
Release highlights:
- Relay connectivity is now maintained by a management loop that selects from the peerstore
- Ability to manually specify `multiaddrs` for the nwaku node to advertise
- Two important fixes related to historical message queries:
- fixed archive bug that resulted in duplicate messages in store query response
- fixed query page size limit not being respected
### Features
- New connectivity loop to maintain relay connectivity from peerstore [1482](https://github.com/waku-org/nwaku/pull/1482) [1462](https://github.com/waku-org/nwaku/pull/1462)
- Support for manually specifying `multiaddrs` to advertise [1509](https://github.com/waku-org/nwaku/pull/1509) [1512](https://github.com/waku-org/nwaku/pull/1512)
- Added dynamic keystore for membership credential storage and management [1466](https://github.com/waku-org/nwaku/pull/1466)
### Changes
- Abstracted RLN relay group management into its own API [1465](https://github.com/waku-org/nwaku/pull/1465)
- Prune peers from peerstore when exceeding capacity [1513](https://github.com/waku-org/nwaku/pull/1513)
- Removed Kilic submodule [1517](https://github.com/waku-org/nwaku/pull/1517)
- Continued refactoring of several protocol implementations to improve maintainability and readability
- Refactored and improved JSON RPC API
- Added safe default values for peer-store-capacity [1525](https://github.com/waku-org/nwaku/pull/1525)
- Improvements in regular CI test reliability and repeatability
- Improved archive query performance [1510](https://github.com/waku-org/nwaku/pull/1510)
- Added better e2e trace logging for relay messages [1526](https://github.com/waku-org/nwaku/pull/1526)
- Relay RPC API now encodes message payloads in base64 [572](https://github.com/vacp2p/rfc/pull/572) [1555](https://github.com/waku-org/nwaku/pull/1555)
### Fixes
- Fixed Waku archive queries returning duplicate messages due to incorrect reordering [1511](https://github.com/waku-org/nwaku/pull/1511)
- Fixed Admin RPC API crashing on returning peer with no multiaddresses [1507](https://github.com/waku-org/nwaku/pull/1507)
- Fixed page size limit not being respected in store query responses [1520](https://github.com/waku-org/nwaku/pull/1520)
- Fixed nwaku subscribing to default pubsub topic even if not configured [1548](https://github.com/waku-org/nwaku/pull/1548)
- Fixed underlying issue causing node to incorrectly report it's unreachable [1518](https://github.com/waku-org/nwaku/pull/1518) [1546](https://github.com/waku-org/nwaku/pull/1546)
- Fixed Relay RPC API not adhering to RFC [1139](https://github.com/waku-org/nwaku/issues/1139)
- Fixed message IDs in nwaku diverging from those in go-waku [1556](https://github.com/waku-org/nwaku/pull/1556)
This release supports the following [libp2p protocols](https://docs.libp2p.io/concepts/protocols/):
| Protocol | Spec status | Protocol id |
| ---: | :---: | :--- |
| [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) | `stable` | `/vac/waku/relay/2.0.0` |
| [`12/WAKU2-FILTER`](https://rfc.vac.dev/spec/12/) | `draft` | `/vac/waku/filter/2.0.0-beta1` |
| [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) | `draft` | `/vac/waku/store/2.0.0-beta4` |
| [`18/WAKU2-SWAP`](https://rfc.vac.dev/spec/18/) | `draft` | `/vac/waku/swap/2.0.0-beta1` |
| [`19/WAKU2-LIGHTPUSH`](https://rfc.vac.dev/spec/19/) | `draft` | `/vac/waku/lightpush/2.0.0-beta1` |
The Waku v1 implementation is stable but not under active development.
## 2023-01-16 v0.14.0
Release highlights:
- An important fix for the Waku message archive returning inconsistent responses to history queries.
- Support for [AutoNAT](https://docs.libp2p.io/concepts/nat/autonat/) and [libp2p Circuit Relay](https://docs.libp2p.io/concepts/nat/circuit-relay/) that allows, among other things, for [NAT hole punching](https://docs.libp2p.io/concepts/nat/hole-punching/).
- Support for structured logging in JSON format.
- A fix for an underlying file descriptor leak that affected websocket connections.
### Features
- Support for [AutoNAT](https://docs.libp2p.io/concepts/nat/autonat/)
- Support for [libp2p Circuit Relay](https://docs.libp2p.io/concepts/nat/circuit-relay/) (server only)
- New Waku Archive implementation. This allows easy addition of drivers for different technologies to store historical messages.
- Support for structured logging and specifying log format.
- Node now keeps track of its external reachability.
### Changes
- Zerokit RLN library now statically linked.
- Use extended key generation in Zerokit API to comply with [32/RLN](https://rfc.vac.dev/spec/32/).
- Re-enable root validation in [`17/WAKU-RLN-RELAY`](https://rfc.vac.dev/spec/17/) implementation.
- [Network monitoring tool](https://github.com/status-im/nwaku/tree/2336522d7f478337237a5a4ec8c5702fb4babc7d/tools#networkmonitor) now supports DNS discovery.
- Added [dashboard](https://github.com/waku-org/nwaku/blob/3e0e1cb2398297fca761aa74f52d32fa837d556c/metrics/waku-network-monitor-dashboard.json) for network monitoring.
- Continued refactoring of several protocol implementations to improve maintainability and readability.
- Removed swap integration from store protocol.
- Peerstore now consolidated with libp2p peerstore.
- Peerstore now also tracks peer direction.
- SIGSEGV signals are now handled and logged properly.
- Waku v2 no longer imports libraries from Waku v1.
- Improved build and CI processes:
- Added support for an `EXPERIMENTAL` compiler flag.
- Simplified project Makefile.
- Split Dockerfile into production and experimental stages.
- Removed obsolete simulation libraries from build.
- Improved parallellisation (and therefore processing time) when dialing several peers simultaneously.
- Waku Archive now responds with error to historical queries containing more than 10 content topics.
### Fixes
- Fixed support for optional fields in several protocol rpc codecs. [#1393](https://github.com/waku-org/nwaku/pull/1393) [#1395](https://github.com/waku-org/nwaku/pull/1395) [#1396](https://github.com/waku-org/nwaku/pull/1396)
- Fixed clients with `--store=false` not installing Store Client JSON-RPC API handlers. [#1382](https://github.com/waku-org/nwaku/pull/1382)
- Fixed SQLite driver returning inconsistent responses to store queries. [#1415](https://github.com/waku-org/nwaku/pull/1415)
- Fixed peer exchange discv5 loop starting before discv5 has started. [#1407](https://github.com/waku-org/nwaku/pull/1407)
- Fixed wakubridge test timing. [#1429](https://github.com/waku-org/nwaku/pull/1429)
- Fixed bug in Noise module types equating `T_ss` incorrectly to `"se"` and not `"ss"`. [#1432](https://github.com/waku-org/nwaku/pull/1432)
- Fixed Ctrl-C quitting resulting in unreleased resources and exit failures. [#1416](https://github.com/waku-org/nwaku/pull/1416)
- Fixed CI workflows not cloning repo on startup. [#1454](https://github.com/waku-org/nwaku/pull/1454) [#1455](https://github.com/waku-org/nwaku/pull/1455)
- Fixed Admin API peer connection not returning error response if peer can't be connected. [#1476](https://github.com/waku-org/nwaku/pull/1476)
- Fixed underlying file descriptor leak. [#1483](https://github.com/waku-org/nwaku/pull/1483)
### Docs
- Added [instructions](https://github.com/waku-org/nwaku/blob/3e0e1cb2398297fca761aa74f52d32fa837d556c/docs/operators/quickstart.md) for running nwaku with docker compose.
This release supports the following [libp2p protocols](https://docs.libp2p.io/concepts/protocols/):
| Protocol | Spec status | Protocol id |
| ---: | :---: | :--- |
| [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) | `stable` | `/vac/waku/relay/2.0.0` |
| [`12/WAKU2-FILTER`](https://rfc.vac.dev/spec/12/) | `draft` | `/vac/waku/filter/2.0.0-beta1` |
| [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) | `draft` | `/vac/waku/store/2.0.0-beta4` |
| [`18/WAKU2-SWAP`](https://rfc.vac.dev/spec/18/) | `draft` | `/vac/waku/swap/2.0.0-beta1` |
| [`19/WAKU2-LIGHTPUSH`](https://rfc.vac.dev/spec/19/) | `draft` | `/vac/waku/lightpush/2.0.0-beta1` |
The Waku v1 implementation is stable but not under active development.
## 2022-11-15 v0.13.0
Release highlights:
- A [Waku canary tool](https://github.com/status-im/nwaku/tree/2336522d7f478337237a5a4ec8c5702fb4babc7d/tools#waku-canary-tool) to check if nodes are reachable and what protocols they support.
- Simplified configuration for store protocol. This [new guide](https://github.com/status-im/nwaku/blob/4e5318bfbb204bd1239c95472d7b84b6a326dd9d/docs/operators/how-to/configure-store.md) explains how to configure store from this release forward.
- Support for environment variables to configure a nwaku node. See our [configuration guide](https://github.com/status-im/nwaku/blob/384abed614050bf3aa90c901d7f5e8bc383e8b22/docs/operators/how-to/configure.md) for more.
- A Waku [network monitoring tool](https://github.com/status-im/nwaku/tree/2336522d7f478337237a5a4ec8c5702fb4babc7d/tools#networkmonitor) to report network metrics, including network size, discoverable peer capabilities and more.
### Features
- Added Waku canary tool to check if i) a given node is reachable and ii) it supports a set of protocols.
- Simplified [Waku store configuration](https://github.com/status-im/nwaku/blob/4e5318bfbb204bd1239c95472d7b84b6a326dd9d/docs/operators/how-to/configure-store.md).
- Decoupled Waku peer persistence configuration from message store configuration.
- Added keyfile support for secure storage of RLN credentials.
- Added configurable libp2p agent string to nwaku switch.
- Support for [configuration with environment variables](https://github.com/status-im/nwaku/blob/384abed614050bf3aa90c901d7f5e8bc383e8b22/docs/operators/how-to/configure.md).
- Added [example module](https://github.com/status-im/nwaku/tree/2336522d7f478337237a5a4ec8c5702fb4babc7d/examples/v2) to showcase basic nwaku relay usage.
- Added a nwaku [network monitoring tool](https://github.com/status-im/nwaku/tree/2336522d7f478337237a5a4ec8c5702fb4babc7d/tools#networkmonitor) to provide metrics on peers, network size and more.
### Changes
- Removed support for Kilic's RLN library (obsolete).
- Improved logging for [`17/WAKU-RLN-RELAY`](https://rfc.vac.dev/spec/17/) implementation.
- Connection to eth node for RLN now more stable, maintains state and logs failures.
- Waku apps and tools now moved to their own subdirectory.
- Continued refactoring of several protocol implementations to improve maintainability and readability.
- Periodically log metrics when running RLN spam protection.
- Added metrics dashboard for RLN spam protection.
- Github CI test workflows are now run selectively, based on the content of a PR.
- Improved reliability of CI runs and added email notifications.
- Discv5 discovery loop now triggered to fill a [34/WAKU2-PEER-EXCHANGE](https://rfc.vac.dev/spec/34/) peer list cache asynchronously.
- Upgraded to Nim v1.6.6.
- Cleaned up compiler warnings on unused imports.
- Improved exception handling and annotation.
- [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) no longer enabled by default on nwaku nodes.
- Merkle tree roots for RLN membership changes now on a per-block basis to allow poorly connected peers to operate within a window of acceptable roots.
### Fixes
- Fixed encoding of ID commitments for RLN from Big-Endian to Little-Endian. [#1256](https://github.com/status-im/nwaku/pull/1256)
- Fixed maxEpochGap to be the maximum allowed epoch gap (RLN). [#1257](https://github.com/status-im/nwaku/pull/1257)
- Fixed store cursors being retrieved incorrectly (truncated) from DB. [#1263](https://github.com/status-im/nwaku/pull/1263)
- Fixed message indexed by store cursor being excluded from history query results. [#1263](https://github.com/status-im/nwaku/pull/1263)
- Fixed log-level configuration being ignored by the nwaku node. [#1272](https://github.com/status-im/nwaku/pull/1272)
- Fixed incorrect error message when failing to set [34/WAKU2-PEER-EXCHANGE](https://rfc.vac.dev/spec/34/) peer. [#1298](https://github.com/status-im/nwaku/pull/1298)
- Fixed and replaced deprecated `TaintedString` type. [#1326](https://github.com/status-im/nwaku/pull/1326)
- Fixed and replaced unreliable regex library and usage. [#1327](https://github.com/status-im/nwaku/pull/1327) [#1328](https://github.com/status-im/nwaku/pull/1328)
- Fixed and replaced deprecated `ganache-cli` node package with `ganache` for RLN onchain tests. Added graceful daemon termination. [#1347](https://github.com/status-im/nwaku/pull/1347)
### Docs
- Added cross client RLN testnet [tutorial](https://github.com/status-im/nwaku/blob/44d8a2026dc31a37e181043ceb67e2822376dc03/docs/tutorial/rln-chat-cross-client.md).
- Fixed broken link to Kibana in [cluster documentation](https://github.com/status-im/nwaku/blob/5e90085242e9e4d6f3cf307e189efbf7e59da9f9/docs/contributors/cluster-logs.md).
- Added an improved [quickstart guide](https://github.com/status-im/nwaku/blob/8f5363ea8f5e95fc1104307aa0d2fc59fda13698/docs/operators/quickstart.md) for operators.
- Added a [Docker usage guide](https://github.com/status-im/nwaku/blob/8f5363ea8f5e95fc1104307aa0d2fc59fda13698/docs/operators/docker-quickstart.md#prerequisites) for operators.
- Added operator [guide on running RLN spam prevention](https://github.com/status-im/nwaku/blob/bd516788cb39132ccbf0a4dcf0880e9694beb233/docs/operators/how-to/run-with-rln.md) on nwaku nodes.
- Extended guidelines on nwaku [configuration methods](https://github.com/status-im/nwaku/blob/384abed614050bf3aa90c901d7f5e8bc383e8b22/docs/operators/how-to/configure.md) for operators.
- Added new [store configuration guide](https://github.com/status-im/nwaku/blob/4e5318bfbb204bd1239c95472d7b84b6a326dd9d/docs/operators/how-to/configure-store.md) to reflect simplified options.
This release supports the following [libp2p protocols](https://docs.libp2p.io/concepts/protocols/):
| Protocol | Spec status | Protocol id |
| ---: | :---: | :--- |
| [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) | `stable` | `/vac/waku/relay/2.0.0` |
| [`12/WAKU2-FILTER`](https://rfc.vac.dev/spec/12/) | `draft` | `/vac/waku/filter/2.0.0-beta1` |
| [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) | `draft` | `/vac/waku/store/2.0.0-beta4` |
| [`18/WAKU2-SWAP`](https://rfc.vac.dev/spec/18/) | `draft` | `/vac/waku/swap/2.0.0-beta1` |
| [`19/WAKU2-LIGHTPUSH`](https://rfc.vac.dev/spec/19/) | `draft` | `/vac/waku/lightpush/2.0.0-beta1` |
The Waku v1 implementation is stable but not under active development.
## 2022-10-06 v0.12.0
Release highlights:
- The performance and stability of the message `store` has improved dramatically. Query durations, even for long-term stores, have improved by more than a factor of 10.
- Support for Waku Peer Exchange - a discovery method for resource-restricted nodes.
- Messages can now be marked as "ephemeral" to prevent them from being stored.
- [Zerokit](https://github.com/vacp2p/zerokit) is now the default implementation for spam-protected `relay` with RLN.
The full list of changes is below.
### Features
- Default support for [Zerokit](https://github.com/vacp2p/zerokit) version of [`17/WAKU-RLN-RELAY`](https://rfc.vac.dev/spec/17/) implementation.
- Added Filter REST API OpenAPI specification.
- Added POC implementation for [43/WAKU2-DEVICE-PAIRING](https://rfc.vac.dev/spec/43/).
- [14/WAKU2-MESSAGE](https://rfc.vac.dev/spec/14/) can now be marked as `ephemeral` to prevent them from being stored.
- Support for [34/WAKU2-PEER-EXCHANGE](https://rfc.vac.dev/spec/34/).
### Changes
- [`17/WAKU-RLN-RELAY`](https://rfc.vac.dev/spec/17/) implementation now handles on-chain transaction errors.
- [`17/WAKU-RLN-RELAY`](https://rfc.vac.dev/spec/17/) implementation now validates the Merkle tree root against a window of acceptable roots.
- Added metrics for [`17/WAKU-RLN-RELAY`](https://rfc.vac.dev/spec/17/) implementation.
- Continued refactoring of several protocol implementations to improve maintainability and readability.
- Cleaned up nwaku imports and dependencies.
- Refactored and organised nwaku unit tests.
- Nwaku now periodically logs node metrics by default.
- Further improvements to the `store` implementation:
- Better logging and query traceability.
- More useful metrics to measure query and insertion time.
- Reworked indexing for faster inserts and queries.
- Reworked data model to use a simple, single timestamp for indexing, ordering and querying.
- Improved retention policy management with periodic execution.
- Run sqlite database vacuum at node start.
- Improved logging when migrating the database to a newer version.
- `relay` no longer auto-mounted on all nwaku nodes.
- The most complete node ENR now included in response to API requests for node `info()`.
- Updated Grafana dashboards included with nwaku.
- Github CI test execution now skipped for doc-only changes.
### Fixes
- Fixed nwaku unnecessary sleep when no dynamic bootstrap nodes retrieved.
- Fixed [`12/WAKU2-FILTER`](https://rfc.vac.dev/spec/12/) not working from browser-based clients due to nwaku peer manager failing to reuse existing connection.
- Waku Message payload now correctly encoded as base64 in the Relay REST API.
- Fixed handling of bindParam(uint32) in sqlite.
- `chat2` application now correctly selects a random store node on startup.
- Fixed macos builds failing due to an unsupported dependency.
- Fixed nwaku not reconnecting to previously discovered nodes after losing connection.
- Fixed nwaku failing to start switch transports with external IP configuration.
- Fixed SIGSEGV crash when attempting to start nwaku store without `db-path` configuration.
### Docs
- Improved [RLN testnet tutorial](https://github.com/status-im/nwaku/blob/14abdef79677ddc828ff396ece321e05cedfca17/docs/tutorial/onchain-rln-relay-chat2.md)
- Added [tutorial](https://github.com/status-im/nwaku/blob/14abdef79677ddc828ff396ece321e05cedfca17/docs/operators/droplet-quickstart.md) on running nwaku from a DigitalOcean droplet.
- Added [guide](https://github.com/status-im/nwaku/blob/14abdef79677ddc828ff396ece321e05cedfca17/docs/operators/how-to/monitor.md) on how to monitor nwaku using Prometheus and Grafana.
This release supports the following [libp2p protocols](https://docs.libp2p.io/concepts/protocols/):
| Protocol | Spec status | Protocol id |
| ---: | :---: | :--- |
| [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) | `stable` | `/vac/waku/relay/2.0.0` |
| [`12/WAKU2-FILTER`](https://rfc.vac.dev/spec/12/) | `draft` | `/vac/waku/filter/2.0.0-beta1` |
| [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) | `draft` | `/vac/waku/store/2.0.0-beta4` |
| [`18/WAKU2-SWAP`](https://rfc.vac.dev/spec/18/) | `draft` | `/vac/waku/swap/2.0.0-beta1` |
| [`19/WAKU2-LIGHTPUSH`](https://rfc.vac.dev/spec/19/) | `draft` | `/vac/waku/lightpush/2.0.0-beta1` |
The Waku v1 implementation is stable but not under active development.
## 2022-08-15 v0.11
Release highlights:
- Major improvements in the performance of historical message queries to longer-term, sqlite-only message stores.
- Introduction of an HTTP REST API with basic functionality
- On-chain RLN group management. This was also integrated into an [example spam-protected chat application](https://github.com/status-im/nwaku/blob/4f93510fc9a938954dd85593f8dc4135a1c367de/docs/tutorial/onchain-rln-relay-chat2.md).
The full list of changes is below.
### Features
- Support for on-chain group membership management in the [`17/WAKU-RLN-RELAY`](https://rfc.vac.dev/spec/17/) implementation.
- Integrated HTTP REST API for external access to some `wakunode2` functionality:
- Debug REST API exposes debug information about a `wakunode2`.
- Relay REST API allows basic pub/sub functionality according to [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/).
- [`35/WAKU2-NOISE`](https://rfc.vac.dev/spec/35/) implementation now adds padding to ChaChaPoly encryptions to increase security and reduce metadata leakage.
### Changes
- Significantly improved the SQLite-only historical message `store` query performance.
- Refactored several protocol implementations to improve maintainability and readability.
- Major code reorganization for the [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) implementation to improve maintainability. This will also make the `store` extensible to support multiple implementations.
- Disabled compiler log colors when running in a CI environment.
- Refactored [`35/WAKU2-NOISE`](https://rfc.vac.dev/spec/35/) implementation into smaller submodules.
- [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) implementation can now optionally be compiled with [Zerokit RLN](https://github.com/vacp2p/zerokit/tree/64f508363946b15ac6c52f8b59d8a739a33313ec/rln). Previously only [Kilic's RLN](https://github.com/kilic/rln/tree/7ac74183f8b69b399e3bc96c1ae8ab61c026dc43) was supported.
### Fixes
- Fixed wire encoding of protocol buffers to use proto3.
- Fixed Waku v1 <> Waku v2 bridge losing connection to statically configured v1 nodes.
- Fixed underlying issue causing DNS discovery to fail for records containing multiple strings.
### Docs
- Updated [release process](https://github.com/status-im/nwaku/blob/4f93510fc9a938954dd85593f8dc4135a1c367de/docs/contributors/release-process.md) documentation.
- Added [tutorial](https://github.com/status-im/nwaku/blob/4f93510fc9a938954dd85593f8dc4135a1c367de/docs/tutorial/onchain-rln-relay-chat2.md) on how to run a spam-protected chat2 application with on-chain group management.
This release supports the following [libp2p protocols](https://docs.libp2p.io/concepts/protocols/):
| Protocol | Spec status | Protocol id |
| ---: | :---: | :--- |
| [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) | `stable` | `/vac/waku/relay/2.0.0` |
| [`12/WAKU2-FILTER`](https://rfc.vac.dev/spec/12/) | `draft` | `/vac/waku/filter/2.0.0-beta1` |
| [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) | `draft` | `/vac/waku/store/2.0.0-beta4` |
| [`18/WAKU2-SWAP`](https://rfc.vac.dev/spec/18/) | `draft` | `/vac/waku/swap/2.0.0-beta1` |
| [`19/WAKU2-LIGHTPUSH`](https://rfc.vac.dev/spec/19/) | `draft` | `/vac/waku/lightpush/2.0.0-beta1` |
The Waku v1 implementation is stable but not under active development.
## 2022-06-15 v0.10
Release highlights:
- Support for key exchange using Noise handshakes.
- Support for a SQLite-only historical message `store`. This allows for cheaper, longer-term historical message storage on disk rather than in memory.
- Several fixes for native WebSockets, including slow or hanging connections and connections dropping unexpectedly due to timeouts.
- A fix for a memory leak in nodes running a local SQLite database.
### Features
- Support for [`35/WAKU2-NOISE`](https://rfc.vac.dev/spec/35/) handshakes as key exchange protocols.
- Support for TOML config files via `--config-file=<path/to/config.toml>`.
- Support for `--version` command. This prints the current tagged version (or compiled commit hash, if not on a version).
- Support for running `store` protocol from a `filter` client, storing only the filtered messages.
- Start of an HTTP REST API implementation.
- Support for a memory-efficient SQLite-only `store` configuration.
### Changes
- Added index on `receiverTimestamp` in the SQLite `store` to improve query performance.
- GossipSub [Peer Exchange](https://github.com/libp2p/specs/blob/master/pubsub/gossipsub/gossipsub-v1.1.md#prune-backoff-and-peer-exchange) is now disabled by default. This is a more secure option.
- Progress towards dynamic group management for the [`17/WAKU-RLN-RELAY`](https://rfc.vac.dev/spec/17/) implementation.
- Nodes with `--keep-alive` enabled now sends more regular pings to keep connections more reliably alive.
- Disabled `swap` protocol by default.
- Reduced unnecessary and confusing logging, especially during startup.
- Added discv5 UDP port to the node's main discoverable ENR.
### Fixes
- The in-memory `store` now checks the validity of message timestamps before storing.
- Fixed underlying bug that caused connection leaks in the HTTP client.
- Fixed Docker image compilation to use the correct external variable for compile-time flags (`NIMFLAGS` instead of `NIM_PARAMS`).
- Fixed issue where `--dns4-domain-name` caused an unhandled exception if no external port was available.
- Avoids unnecessarily calling DB migration if a `--db-path` is set but nothing is persisted in the DB. This led to a misleading warning log.
- Fixed underlying issues that caused WebSocket connections to hang.
- Fixed underlying issue that caused WebSocket connections to time out after 10 mins.
- Fixed memory leak in nodes that implements a SQLite database.
### Docs
- Added [tutorial](https://github.com/status-im/nwaku/blob/16dd267bd9d25ff24c64fc5c92a20eb0d322217c/docs/operators/how-to/configure-key.md) on how to generate and configure a node key.
- Added first [guide](https://github.com/status-im/nwaku/tree/16dd267bd9d25ff24c64fc5c92a20eb0d322217c/docs/operators) for nwaku operators.
This release supports the following [libp2p protocols](https://docs.libp2p.io/concepts/protocols/):
| Protocol | Spec status | Protocol id |
| ---: | :---: | :--- |
| [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) | `stable` | `/vac/waku/relay/2.0.0` |
| [`12/WAKU2-FILTER`](https://rfc.vac.dev/spec/12/) | `draft` | `/vac/waku/filter/2.0.0-beta1` |
| [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) | `draft` | `/vac/waku/store/2.0.0-beta4` |
| [`18/WAKU2-SWAP`](https://rfc.vac.dev/spec/18/) | `draft` | `/vac/waku/swap/2.0.0-beta1` |
| [`19/WAKU2-LIGHTPUSH`](https://rfc.vac.dev/spec/19/) | `draft` | `/vac/waku/lightpush/2.0.0-beta1` |
The Waku v1 implementation is stable but not under active development.
## 2022-03-31 v0.9
Release highlights:
- Support for Peer Exchange (PX) when a peer prunes a [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) mesh due to oversubscription. This can significantly increase mesh stability.
- Improved start-up times through managing the size of the underlying persistent message storage.
- New websocket connections are no longer blocked due to parsing failures in other connections.
The full list of changes is below.
### Features
- Support for bootstrapping [`33/WAKU-DISCV5`](https://rfc.vac.dev/spec/33) via [DNS discovery](https://rfc.vac.dev/spec/10/#discovery-methods)
- Support for GossipSub [Peer Exchange](https://github.com/libp2p/specs/blob/master/pubsub/gossipsub/gossipsub-v1.1.md#prune-backoff-and-peer-exchange)
### Changes
- Waku v1 <> v2 bridge now supports DNS `multiaddrs`
- Waku v1 <> v2 bridge now validates content topics before attempting to bridge a message from Waku v2 to Waku v1
- Persistent message storage now auto deletes messages once over specified `--store-capacity`. This can significantly improve node start-up times.
- Renamed Waku v1 <> v2 bridge `make` target and binary to `wakubridge`
- Increased `store` logging to assist with debugging
- Increased `rln-relay` logging to assist with debugging
- Message metrics no longer include the content topic as a dimension to keep Prometheus metric cardinality under control
- Waku v2 `toy-chat` application now sets the sender timestamp when creating messages
- The type of the `proof` field of the `WakuMessage` is changed to `RateLimitProof`
- Added method to the JSON-RPC API that returns the git tag and commit hash of the binary
- The node's ENR is now included in the JSON-RPC API response when requesting node info
### Fixes
- Fixed incorrect conversion of seconds to nanosecond timestamps
- Fixed store queries blocking due to failure in resource clean up
- Fixed underlying issue where new websocket connections are blocked due to parsing failures in other connections
- Fixed failure to log the ENR necessary for a discv5 connection to the node
### Docs
- Added [RAM requirements](https://github.com/status-im/nim-waku/tree/ee96705c7fbe4063b780ac43b7edee2f6c4e351b/waku/v2#wakunode) to `wakunode2` build instructions
- Added [tutorial](https://github.com/status-im/nim-waku/blob/ee96705c7fbe4063b780ac43b7edee2f6c4e351b/docs/tutorial/rln-chat2-live-testnet.md) on communicating with waku2 test fleets via the chat2 `toy-chat` application in spam-protected mode using [`17/WAKU-RLN-RELAY`](https://rfc.vac.dev/spec/17/).
- Added a [section on bug reporting](https://github.com/status-im/nim-waku/blob/ee96705c7fbe4063b780ac43b7edee2f6c4e351b/README.md#bugs-questions--features) to `wakunode2` README
- Fixed broken links in the [JSON-RPC API Tutorial](https://github.com/status-im/nim-waku/blob/5ceef37e15a15c52cbc589f0b366018e81a958ef/docs/tutorial/jsonrpc-api.md)
This release supports the following [libp2p protocols](https://docs.libp2p.io/concepts/protocols/):
| Protocol | Spec status | Protocol id |
| ---: | :---: | :--- |
| [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) | `stable` | `/vac/waku/relay/2.0.0` |
| [`12/WAKU2-FILTER`](https://rfc.vac.dev/spec/12/) | `draft` | `/vac/waku/filter/2.0.0-beta1` |
| [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) | `draft` | `/vac/waku/store/2.0.0-beta4` |
| [`18/WAKU2-SWAP`](https://rfc.vac.dev/spec/18/) | `draft` | `/vac/waku/swap/2.0.0-beta1` |
| [`19/WAKU2-LIGHTPUSH`](https://rfc.vac.dev/spec/19/) | `draft` | `/vac/waku/lightpush/2.0.0-beta1` |
The Waku v1 implementation is stable but not under active development.
## 2022-03-03 v0.8
Release highlights:
- Working demonstration and integration of [`17/WAKU-RLN-RELAY`](https://rfc.vac.dev/spec/17/) in the Waku v2 `toy-chat` application
- Beta support for ambient peer discovery using [a version of Discovery v5](https://github.com/vacp2p/rfc/pull/487)
- A fix for the issue that caused a `store` node to run out of memory after serving a number of historical queries
- Ability to configure a `dns4` domain name for a node and resolve other dns-based `multiaddrs`
The full list of changes is below.
### Features
- [`17/WAKU-RLN-RELAY`](https://rfc.vac.dev/spec/17/) implementation now supports spam-protection for a specific combination of `pubsubTopic` and `contentTopic` (available under the `rln` compiler flag).
- [`17/WAKU-RLN-RELAY`](https://rfc.vac.dev/spec/17/) integrated into chat2 `toy-chat` (available under the `rln` compiler flag)
- Added support for resolving dns-based `multiaddrs`
- A Waku v2 node can now be configured with a domain name and `dns4` `multiaddr`
- Support for ambient peer discovery using [`33/WAKU-DISCV5`](https://github.com/vacp2p/rfc/pull/487)
### Changes
- Metrics: now monitoring content topics and the sources of new connections
- Metrics: improved default fleet monitoring dashboard
- Introduced a `Timestamp` type (currently an alias for int64).
- All timestamps changed to nanosecond resolution.
- `timestamp` field number in WakuMessage object changed from `4` to `10`
- [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) identifier updated to `/vac/waku/store/2.0.0-beta4`
- `toy-chat` application now uses DNS discovery to connect to existing fleets
### Fixes
- Fixed underlying bug that caused occasional failures when reading the certificate for secure websockets
- Fixed `store` memory usage issues when responding to history queries
### Docs
- Documented [use of domain certificates](https://github.com/status-im/nim-waku/tree/2972a5003568848164033da3fe0d7f52a3d54824/waku/v2#enabling-websocket) for secure websockets
- Documented [how to configure a `dns4` domain name](https://github.com/status-im/nim-waku/tree/2972a5003568848164033da3fe0d7f52a3d54824/waku/v2#using-dns-discovery-to-connect-to-existing-nodes) for a node
- Clarified [use of DNS discovery](https://github.com/status-im/nim-waku/tree/2972a5003568848164033da3fe0d7f52a3d54824/waku/v2#using-dns-discovery-to-connect-to-existing-nodes) and provided current URLs for discoverable fleet nodes
- Added [tutorial](https://github.com/status-im/nim-waku/blob/2972a5003568848164033da3fe0d7f52a3d54824/docs/tutorial/rln-chat2-local-test.md) on using [`17/WAKU-RLN-RELAY`](https://rfc.vac.dev/spec/17/) with the chat2 `toy-chat` application
- Added [tutorial](https://github.com/status-im/nim-waku/blob/2972a5003568848164033da3fe0d7f52a3d54824/docs/tutorial/bridge.md) on how to configure and a use a [`15/WAKU-BRIDGE`](https://rfc.vac.dev/spec/15/)
This release supports the following [libp2p protocols](https://docs.libp2p.io/concepts/protocols/):
| Protocol | Spec status | Protocol id |
| ---: | :---: | :--- |
| [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) | `stable` | `/vac/waku/relay/2.0.0` |
| [`12/WAKU2-FILTER`](https://rfc.vac.dev/spec/12/) | `draft` | `/vac/waku/filter/2.0.0-beta1` |
| [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) | `draft` | `/vac/waku/store/2.0.0-beta4` |
| [`18/WAKU2-SWAP`](https://rfc.vac.dev/spec/18/) | `draft` | `/vac/waku/swap/2.0.0-beta1` |
| [`19/WAKU2-LIGHTPUSH`](https://rfc.vac.dev/spec/19/) | `draft` | `/vac/waku/lightpush/2.0.0-beta1` |
The Waku v1 implementation is stable but not under active development.
## 2022-01-19 v0.7
Release highlights:
- Support for secure websockets.
- Ability to remove unreachable clients in a `filter` node.
- Several fixes to improve `store` performance and decrease query times. Query time for large stores decreased from longer than 8 min to under 100 ms.
- Fix for a long-standing bug that prevented proper database migration in some deployed Docker containers.
The full list of changes is below.
### Features
- Support for secure websocket transport
### Changes
- Filter nodes can now remove unreachable clients
- The WakuInfo `listenStr` is deprecated and replaced with a sequence of `listenAddresses` to accommodate multiple transports
- Removed cached `peerInfo` on local node. Rely on underlying libp2p switch instead
- Metrics: added counters for protocol messages
- Waku v2 node discovery now supports [`31/WAKU2-ENR`](https://rfc.vac.dev/spec/31/)
- resuming the history via `resume` now takes the answers of all peers in `peerList` into consideration and consolidates them into one deduplicated list
### Fixes
- Fixed database migration failure in the Docker image
- All `HistoryResponse` messages are now auto-paginated to a maximum of 100 messages per response
- Increased maximum length for reading from a libp2p input stream to allow largest possible protocol messages, including `HistoryResponse` messages at max size
- Significantly improved `store` node query performance
- Implemented a GossipSub `MessageIdProvider` for `11/WAKU2-RELAY` messages instead of relying on the unstable default
- Receiver timestamps for message indexing in the `store` now have consistent millisecond resolution
This release supports the following [libp2p protocols](https://docs.libp2p.io/concepts/protocols/):
| Protocol | Spec status | Protocol id |
| ---: | :---: | :--- |
| [`17/WAKU-RLN-RELAY`](https://rfc.vac.dev/spec/17/) | `raw` | `/vac/waku/waku-rln-relay/2.0.0-alpha1` |
| [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) | `stable` | `/vac/waku/relay/2.0.0` |
| [`12/WAKU2-FILTER`](https://rfc.vac.dev/spec/12/) | `draft` | `/vac/waku/filter/2.0.0-beta1` |
| [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) | `draft` | `/vac/waku/store/2.0.0-beta3` |
| [`18/WAKU2-SWAP`](https://rfc.vac.dev/spec/18/) | `draft` | `/vac/waku/swap/2.0.0-beta1` |
| [`19/WAKU2-LIGHTPUSH`](https://rfc.vac.dev/spec/19/) | `draft` | `/vac/waku/lightpush/2.0.0-beta1` |
The Waku v1 implementation is stable but not under active development.
## 2021-11-05 v0.6
Some useful features and fixes in this release, include:
- two methods for Waku v2 node discovery
- support for unsecure websockets, which paves the way for native browser usage
- a fix for `nim-waku` store nodes running out of memory due to store size: the number of stored messages can now easily be configured
- a fix for densely connected nodes refusing new connections: the maximum number of allowed connections can now easily be configured
- support for larger message sizes (up from 64kb to 1Mb per message)
The full list of changes is below.
### Features
- Waku v2 node discovery via DNS following [EIP-1459](https://eips.ethereum.org/EIPS/eip-1459)
- Waku v2 node discovery via [Node Discovery v5](https://github.com/ethereum/devp2p/blob/master/discv5/discv5-theory.md)
### Changes
- Pagination of historical queries are now simplified
- GossipSub [prune backoff period](https://github.com/libp2p/specs/blob/master/pubsub/gossipsub/gossipsub-v1.1.md#prune-backoff-and-peer-exchange) is now the recommended 1 minute
- Bridge now uses content topic format according to [23/WAKU2-TOPICS](https://rfc.vac.dev/spec/23/)
- Better internal differentiation between local and remote peer info
- Maximum number of libp2p connections is now configurable
- `udp-port` CLI option has been removed for binaries where it's not used
- Waku v2 now supports unsecure WebSockets
- Waku v2 now supports larger message sizes of up to 1 Mb by default
- Further experimental development of [RLN for spam protection](https://rfc.vac.dev/spec/17/).
These changes are disabled by default under a compiler flag. Changes include:
- Per-message rate limit proof defined
- RLN proof generation and verification integrated into Waku v2
- RLN tree depth changed from 32 to 20
- Support added for static membership group formation
#### Docs
- Added [contributor guidelines](https://github.com/status-im/nim-waku/blob/master/docs/contributors/waku-fleets.md) on Waku v2 fleet monitoring and management
- Added [basic tutorial](https://github.com/status-im/nim-waku/blob/master/docs/tutorial/dns-disc.md) on using Waku v2 DNS-based discovery
### Fixes
- Bridge between `toy-chat` and matterbridge now shows correct announced addresses
- Bridge no longer re-encodes already encoded payloads when publishing to V1
- Bridge now populates WakuMessage timestamps when publishing to V2
- Store now has a configurable maximum number of stored messages
- Network simulations for Waku v1 and Waku v2 are runnable again
This release supports the following [libp2p protocols](https://docs.libp2p.io/concepts/protocols/):
| Protocol | Spec status | Protocol id |
| ---: | :---: | :--- |
| [`17/WAKU-RLN`](https://rfc.vac.dev/spec/17/) | `raw` | `/vac/waku/waku-rln-relay/2.0.0-alpha1` |
| [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) | `stable` | `/vac/waku/relay/2.0.0` |
| [`12/WAKU2-FILTER`](https://rfc.vac.dev/spec/12/) | `draft` | `/vac/waku/filter/2.0.0-beta1` |
| [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) | `draft` | `/vac/waku/store/2.0.0-beta3` |
| [`18/WAKU2-SWAP`](https://rfc.vac.dev/spec/18/) | `draft` | `/vac/waku/swap/2.0.0-beta1` |
| [`19/WAKU2-LIGHTPUSH`](https://rfc.vac.dev/spec/19/) | `draft` | `/vac/waku/lightpush/2.0.0-beta1` |
The Waku v1 implementation is stable but not under active development.
## 2021-07-26 v0.5.1
This patch release contains the following fix:
- Support for multiple protocol IDs when reconnecting to previously connected peers:
A bug in `v0.5` caused clients using persistent peer storage to only support the mounted protocol ID.
This is a patch release that is fully backwards-compatible with release `v0.5`.
It supports the same [libp2p protocols](https://docs.libp2p.io/concepts/protocols/):
| Protocol | Spec status | Protocol id |
| ---: | :---: | :--- |
| [`17/WAKU-RLN`](https://rfc.vac.dev/spec/17/) | `raw` | `/vac/waku/waku-rln-relay/2.0.0-alpha1` |
| [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) | `stable` | `/vac/waku/relay/2.0.0` |
| [`12/WAKU2-FILTER`](https://rfc.vac.dev/spec/12/) | `draft` | `/vac/waku/filter/2.0.0-beta1` |
| [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) | `draft` | `/vac/waku/store/2.0.0-beta3` |
| [`18/WAKU2-SWAP`](https://rfc.vac.dev/spec/18/) | `draft` | `/vac/waku/swap/2.0.0-beta1` |
| [`19/WAKU2-LIGHTPUSH`](https://rfc.vac.dev/spec/19/) | `draft` | `/vac/waku/lightpush/2.0.0-beta1` |
The Waku v1 implementation is stable but not under active development.
## 2021-07-23 v0.5
This release contains the following:
### Features
- Support for keep-alives using [libp2p ping protocol](https://docs.libp2p.io/concepts/protocols/#ping).
- DB migration for the message and peer stores.
- Support for multiple protocol IDs. Mounted protocols now match versions of the same protocol that adds a postfix to the stable protocol ID.
### Changes
- Bridge topics are now configurable.
- The `resume` Nim API now eliminates duplicates messages before storing them.
- The `resume` Nim API now fetches historical messages in page sequence.
- Added support for stable version of `relay` protocol, with protocol ID `/vac/waku/relay/2.0.0`.
- Added optional `timestamp` to `WakuRelayMessage`.
- Removed `PCRE` as a prerequisite for building Waku v1 and Waku v2.
- Improved [`swap`](https://rfc.vac.dev/spec/18/) metrics.
#### General refactoring
- Refactored modules according to [Nim best practices](https://hackmd.io/1imOGULZRsed2HpgmzGleA).
- Simplified the [way protocols get notified](https://github.com/status-im/nim-waku/issues/574) of new messages.
- Refactored `wakunode2` setup into 6 distinct phases with improved logging and error handling.
- Moved `Whisper` types and protocol from the `nim-eth` module to `nim-waku`.
#### Docs
- Added [database migration tutorial](https://github.com/status-im/nim-waku/blob/master/docs/tutorial/db-migration.md).
- Added [tutorial to setup `websockify`](https://github.com/status-im/nim-waku/blob/master/docs/tutorial/websocket.md).
#### Schema
- Updated the `Message` table of the persistent message store:
- Added `senderTimestamp` column.
- Renamed the `timestamp` column to `receiverTimestamp` and changes its type to `REAL`.
#### API
- Added optional `timestamp` to [`WakuRelayMessage`](https://rfc.vac.dev/spec/16/#wakurelaymessage) on JSON-RPC API.
### Fixes
- Conversion between topics for the Waku v1 <-> v2 bridge now follows the [RFC recommendation](https://rfc.vac.dev/spec/23/).
- Fixed field order of `HistoryResponse` protobuf message: the field numbers of the `HistoryResponse` are shifted up by one to match up the [13/WAKU2-STORE](https://rfc.vac.dev/spec/13/) specs.
This release supports the following [libp2p protocols](https://docs.libp2p.io/concepts/protocols/):
| Protocol | Spec status | Protocol id |
| ---: | :---: | :--- |
| [`17/WAKU-RLN`](https://rfc.vac.dev/spec/17/) | `raw` | `/vac/waku/waku-rln-relay/2.0.0-alpha1` |
| [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) | `stable` | `/vac/waku/relay/2.0.0` |
| [`12/WAKU2-FILTER`](https://rfc.vac.dev/spec/12/) | `draft` | `/vac/waku/filter/2.0.0-beta1` |
| [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) | `draft` | `/vac/waku/store/2.0.0-beta3` |
| [`18/WAKU2-SWAP`](https://rfc.vac.dev/spec/18/) | `draft` | `/vac/waku/swap/2.0.0-beta1` |
| [`19/WAKU2-LIGHTPUSH`](https://rfc.vac.dev/spec/19/) | `draft` | `/vac/waku/lightpush/2.0.0-beta1` |
The Waku v1 implementation is stable but not under active development.
## 2021-06-03 v0.4
This release contains the following:
### Features
- Initial [`toy-chat` implementation](https://rfc.vac.dev/spec/22/)
### Changes
- The [toy-chat application](https://github.com/status-im/nim-waku/blob/master/docs/tutorial/chat2.md) can now perform `lightpush` and request content-filtered messages from remote peers.
- The [toy-chat application](https://github.com/status-im/nim-waku/blob/master/docs/tutorial/chat2.md) now uses default content topic `/toy-chat/2/huilong/proto`
- Improve `toy-chat` [briding to matterbridge]((https://github.com/status-im/nim-waku/blob/master/docs/tutorial/chat2.md#bridge-messages-between-chat2-and-matterbridge))
- Improve [`swap`](https://rfc.vac.dev/spec/18/) logging and enable soft mode by default
- Content topics are no longer in a redundant nested structure
- Improve error handling
#### API
- [JSON-RPC Store API](https://rfc.vac.dev/spec/16): Added an optional time-based query to filter historical messages.
- [Nim API](https://github.com/status-im/nim-waku/blob/master/docs/api/v2/node.md): Added `resume` method.
### Fixes
- Connections between nodes no longer become unstable due to keep-alive errors if mesh grows large
- Re-enable `lightpush` tests and fix Windows CI failure
The [Waku v2 suite of protocols](https://rfc.vac.dev/) are still in a raw/draft state.
This release supports the following [libp2p protocols](https://docs.libp2p.io/concepts/protocols/):
| Protocol | Spec status | Protocol id |
| ---: | :---: | :--- |
| [`17/WAKU-RLN`](https://rfc.vac.dev/spec/17/) | `raw` | `/vac/waku/waku-rln-relay/2.0.0-alpha1` |
| [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) | `draft` | `/vac/waku/relay/2.0.0-beta2` |
| [`12/WAKU2-FILTER`](https://rfc.vac.dev/spec/12/) | `draft` | `/vac/waku/filter/2.0.0-beta1` |
| [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) | `draft` | `/vac/waku/store/2.0.0-beta3` |
| [`18/WAKU2-SWAP`](https://rfc.vac.dev/spec/18/) | `draft` | `/vac/waku/swap/2.0.0-beta1` |
| [`19/WAKU2-LIGHTPUSH`](https://rfc.vac.dev/spec/19/) | `draft` | `/vac/waku/lightpush/2.0.0-beta1` |
The Waku v1 implementation is stable but not under active development.
## 2021-05-11 v0.3
This release contains the following:
### Features
- Start of [`RLN relay` implementation](https://rfc.vac.dev/spec/17/)
- Start of [`swap` implementation](https://rfc.vac.dev/spec/18/)
- Start of [fault-tolerant `store` implementation](https://rfc.vac.dev/spec/21/)
- Initial [`bridge` implementation](https://rfc.vac.dev/spec/15/) between Waku v1 and v2 protocols
- Initial [`lightpush` implementation](https://rfc.vac.dev/spec/19/)
- A peer manager for `relay`, `filter`, `store` and `swap` peers
- Persistent storage for peers: A node with this feature enabled will now attempt to reconnect to `relay` peers after a restart. It will respect the gossipsub [PRUNE backoff](https://github.com/libp2p/specs/blob/master/pubsub/gossipsub/gossipsub-v1.1.md#prune-backoff-and-peer-exchange) period before attempting to do so.
- `--persist-peers` CLI option to persist peers in local storage
- `--persist-messages` CLI option to store historical messages locally
- `--keep-alive` CLI option to maintain a stable connection to `relay` peers on idle topics
- A CLI chat application ([`chat2`](https://github.com/status-im/nim-waku/blob/master/docs/tutorial/chat2.md)) over Waku v2 with [bridging to matterbridge](https://github.com/status-im/nim-waku/blob/master/docs/tutorial/chat2.md#bridge-messages-between-chat2-and-matterbridge)
### Changes
- Enable `swap` protocol by default and improve logging
#### General refactoring
- Split out `waku_types` types into the right place; create `utils` folder.
- Change type of `contentTopic` in [`ContentFilter`](https://rfc.vac.dev/spec/12/#protobuf) to `string`.
- Replace sequence of `contentTopics` in [`ContentFilter`](https://rfc.vac.dev/spec/12/#protobuf) with a single `contentTopic`.
- Add `timestamp` field to [`WakuMessage`](https://rfc.vac.dev/spec/14/#payloads).
- Ensure CLI config parameters use a consistent naming scheme. Summary of changes [here](https://github.com/status-im/nim-waku/pull/543).
#### Docs
Several clarifications and additions aimed at contributors, including
- information on [how to query Status test fleet](https://github.com/status-im/nim-waku/blob/master/docs/faq.md) for node addresses,
- [how to view logs](https://github.com/status-im/nim-waku/blob/master/docs/contributors/cluster-logs.md), and
- [how to update submodules](https://github.com/status-im/nim-waku/blob/master/docs/contributors/git-submodules.md).
#### Schema
- Add `Message` table to the persistent message store. This table replaces the old `messages` table. It has two additional columns, namely
- `pubsubTopic`, and
- `version`.
- Add `Peer` table for persistent peer storage.
#### API
- [JSON-RPC Admin API](https://rfc.vac.dev/spec/16): Added a [`post` method](https://rfc.vac.dev/spec/16/#post_waku_v2_admin_v1_peers) to connect to peers on an ad-hoc basis.
- [Nim API](https://github.com/status-im/nim-waku/blob/master/docs/api/v2/node.md): PubSub topic `subscribe` and `unsubscribe` no longer returns a future (removed `async` designation).
- [`HistoryQuery`](https://rfc.vac.dev/spec/13/#historyquery): Added `pubsubTopic` field. Message history can now be filtered and queried based on the `pubsubTopic`.
- [`HistoryQuery`](https://rfc.vac.dev/spec/13/#historyquery): Added support for querying a time window by specifying start and end times.
### Fixes
- Running nodes can now be shut down gracefully
- Content filtering now works on any PubSub topic and not just the `waku` default.
- Nodes can now mount protocols without supporting `relay` as a capability
The [Waku v2 suite of protocols](https://rfc.vac.dev/) are still in a raw/draft state.
This release supports the following [libp2p protocols](https://docs.libp2p.io/concepts/protocols/):
| Protocol | Spec status | Protocol id |
| ---: | :---: | :--- |
| [`17/WAKU-RLN`](https://rfc.vac.dev/spec/17/) | `raw` | `/vac/waku/waku-rln-relay/2.0.0-alpha1` |
| [`18/WAKU2-SWAP`](https://rfc.vac.dev/spec/18/) | `raw` | `/vac/waku/swap/2.0.0-alpha1` |
| [`19/WAKU2-LIGHTPUSH`](https://rfc.vac.dev/spec/19/) | `raw` | `/vac/waku/lightpush/2.0.0-alpha1` |
| [`11/WAKU2-RELAY`](https://rfc.vac.dev/spec/11/) | `draft` | `/vac/waku/relay/2.0.0-beta2` |
| [`12/WAKU2-FILTER`](https://rfc.vac.dev/spec/12/) | `draft` | `/vac/waku/filter/2.0.0-beta1` |
| [`13/WAKU2-STORE`](https://rfc.vac.dev/spec/13/) | `draft` | `/vac/waku/store/2.0.0-beta3` |
The Waku v1 implementation is stable but not under active development.
## 2021-01-05 v0.2
This release contains the following changes:
- Calls to `publish` a message on `wakunode2` now `await` instead of `discard` dispatched [`WakuRelay`](https://github.com/vacp2p/specs/blob/master/specs/waku/v2/waku-relay.md) procedures.
- [`StrictNoSign`](https://github.com/libp2p/specs/tree/master/pubsub#message-signing) enabled.
- Add JSON-RPC API for external access to `wakunode2` functionality:
- Admin API retrieves information about peers registered on the `wakunode2`.
- Debug API exposes debug information about a `wakunode2`.
- Filter API saves bandwidth by allowing light nodes to filter for specific content.
- Private API enables symmetric or asymmetric cryptography to encrypt/decrypt message payloads.
- Relay API allows basic pub/sub functionality.
- Store API retrieves historical messages.
- Add tutorial on how to use JSON-RPC API.
- Refactor: Move `waku_filter` protocol into its own module.
The Waku v2 implementation, and [most protocols it consist of](https://specs.vac.dev/specs/waku/),
are still in a draft/beta state. The Waku v1 implementation is stable but not under active development.
## 2020-11-30 v0.1
Initial beta release.
This release contains:
- A Nim implementation of the [Waku v1 protocol](https://specs.vac.dev/waku/waku.html).
- A Nim implementation of the [Waku v2 protocol](https://specs.vac.dev/specs/waku/v2/waku-v2.html).
- CLI applications `wakunode` and `wakunode2` that allows you to run a Waku v1 or v2 node.
- Examples of Waku v1 and v2 usage.
- Various tests of above.
Currenty the Waku v2 implementation, and [most protocols it consist of](https://specs.vac.dev/specs/waku/),
are in a draft/beta state. The Waku v1 implementation is stable but not under active development.
Feedback welcome!
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