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CHANGELOG.md

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0.30.0 [unreleased]

  • Update dependencies.

  • Drive ExpandedSwarm via Stream trait only.

    • Change Stream implementation of ExpandedSwarm to return all SwarmEvents instead of only the NetworkBehaviour's events.

    • Remove ExpandedSwarm::next_event. Users can use <ExpandedSwarm as StreamExt>::next instead.

    • Remove ExpandedSwarm::next. Users can use <ExpandedSwarm as StreamExt>::filter_map instead.

    See PR 2100 for details.

  • Add ExpandedSwarm::disconnect_peer_id and NetworkBehaviourAction::CloseConnection to close connections to a specific peer via an ExpandedSwarm or NetworkBehaviour. See PR 2110 for details.

  • Expose the ListenerId in SwarmEvents that are associated with a listener.

    See PR 2123 for details.

0.29.0 [2021-04-13]

  • Remove Deref and DerefMut implementations previously dereferencing to the NetworkBehaviour on Swarm. Instead one can access the NetworkBehaviour via Swarm::behaviour and Swarm::behaviour_mut. Methods on Swarm can now be accessed directly, e.g. via my_swarm.local_peer_id(). You may use the command below to transform fully qualified method calls on Swarm to simple method calls PR 1995.

    # Go from e.g. `Swarm::local_peer_id(&my_swarm)` to `my_swarm.local_peer_id()`.
grep -RiIl --include \*.rs --exclude-dir target . --exclude-dir .git | xargs sed -i "s/\(libp2p::\)*Swarm::\([a-z_]*\)(&mut \([a-z_0-9]*\), /\3.\2(/g"

  • Extend NetworkBehaviour callbacks, more concretely introducing new fn inject_new_listener and fn inject_expired_external_addr and have fn inject_{new,expired}_listen_addr provide a ListenerId PR 2011.

0.28.0 [2021-03-17]

  • New error variant DialError::InvalidAddress

  • Swarm::dial_addr() now returns a DialError on error.

  • Remove the option for a substream-specific multistream select protocol override. The override at this granularity is no longer deemed useful, in particular because it can usually not be configured for existing protocols like libp2p-kad and others. There is a Swarm-scoped configuration for this version available since 1858.

0.27.2 [2021-02-04]

  • Have ToggleProtoHandler ignore listen upgrade errors when disabled. PR 1945.

0.27.1 [2021-01-27]

  • Make OneShotHandlers max_dial_negotiate limit configurable. PR 1936.

  • Fix handling of DialPeerCondition::Always. PR 1937.

0.27.0 [2021-01-12]

  • Update dependencies.

0.26.0 [2020-12-17]

  • Update libp2p-core.

  • Remove NotifyHandler::All thus removing the requirement for events send from a NetworkBehaviour to a ProtocolsHandler to be Clone. PR 1880.

0.25.1 [2020-11-26]

  • Add ExpandedSwarm::is_connected. PR 1862.

0.25.0 [2020-11-25]

  • Permit a configuration override for the substream upgrade protocol to use for all (outbound) substreams. PR 1858.

  • Changed parameters for connection limits from usize to u32. Connection limits are now configured via SwarmBuilder::connection_limits().

  • Update libp2p-core.

  • Expose configurable scores for external addresses, as well as the ability to remove them and to add addresses that are retained "forever" (or until explicitly removed). PR 1842.

0.24.0 [2020-11-09]

  • Update dependencies.

0.23.0 [2020-10-16]

  • Require a Boxed transport to be given to the Swarm or SwarmBuilder to avoid unnecessary double-boxing of transports and simplify API bounds. PR 1794

  • Respect inbound timeouts and upgrade versions in the MultiHandler. PR 1786.

  • Instead of iterating each inbound and outbound substream upgrade looking for one to make progress, use a FuturesUnordered for both pending inbound and pending outbound upgrades. As a result only those upgrades are polled that are ready to progress.

    Implementors of InboundUpgrade and OutboundUpgrade need to ensure to wake up the underlying task once they are ready to make progress as they won't be polled otherwise.

    PR 1775

0.22.0 [2020-09-09]

  • Bump libp2p-core dependency.

  • Adds ProtocolsHandler::InboundOpenInfo type which mirrors the existing OutboundOpenInfo type. A value of this type is passed as an extra argument to ProtocolsHandler::inject_fully_negotiated_inbound and ProtocolsHandler::inject_listen_upgrade_error.

  • SubstreamProtocol now has a second type parameter corresponding to inbound or outbound information, a value of which is part of SubstreamProtocol now. Consequently ProtocolsHandlerEvent::OutboundSubstreamRequest no longer has a separate info field.

0.21.0 [2020-08-18]

  • Add missing delegation calls in some ProtocolsHandler wrappers. See PR 1710.

  • Add as_ref and as_mut functions to Toggle PR 1684.

  • The cause of SwarmEvent::ConnectionClosed is now an Option, and None indicates an active connection close not caused by an error.

  • DialError::Banned has been added and is returned from Swarm::dial if the peer is banned, thereby also invoking the NetworkBehaviour::inject_dial_failure callback.

  • Update the libp2p-core dependency to 0.21, fixing 1584.

  • Fix connections being kept alive by OneShotHandler when not handling any requests PR 1698.

0.20.1 [2020-07-08]

  • Documentation updates.

  • Ignore addresses returned by NetworkBehaviour::addresses_of_peer that the Swarm considers to be listening addresses of the local node. This avoids futile dialing attempts of a node to itself, which can otherwise even happen in genuine situations, e.g. after the local node changed its network identity and a behaviour makes a dialing attempt to a former identity using the same addresses.

0.20.0 [2020-07-01]

  • Updated the libp2p-core dependency.

  • Add ProtocolsHandler::inject_listen_upgrade_error, the inbound analogue of ProtocolsHandler::inject_dial_upgrade_error, with an empty default implementation. No implementation is required to retain existing behaviour.

  • Add ProtocolsHandler::inject_address_change and NetworkBehaviour::inject_address_change to notify of a change in the address of an existing connection.

0.19.1 [2020-06-18]

  • Bugfix: Fix MultiHandler panicking when empty (PR 1598).