0.24.0 [2020-11-09]

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

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.

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.

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.

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.