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nwaku/CHANGELOG.md

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## Next Release
Release highlights:
-
The full list of changes is below.
### Features
- The `waku-rln-relay` now supports spam-protection for a specific combination of `pubsubTopic` and `contentTopic` (available under the `rln` compiler flag).
- The `waku-rln-relay` protocol in integrated into `chat2` (available under the`rln` compiler flag)
### Changes
- ...
### Fixes
- ...
## 2021-01-19 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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