…to<TopicHash>` (#2862)

Ignoring certain revisions helps in finding the "correct" commit
that touched a file last.

For more information, see:

https://www.git-scm.com/docs/git-blame#Documentation/git-blame.txt---ignore-revs-fileltfilegt

Add support for multiple Kademlia protocol names to allow
protocol name upgrades.

…ime (#2748)

Allow users to choose between async-io and tokio runtime
in the mdns protocol implementation. `async-io` is a default
feature, with an additional `tokio` feature.

Fix high CPU usage with Tokio library.

…go-deny` (#2803)

#2817)

With the removal of `NetworkBehaviourEventProcess` there is no more need for
ignoring fields.

With the removal of `NetworkBehaviourEventProcess` there is no more need for a
custom poll method.

Add guideline to limit number of tasks being spawned.

Removes the `NetworkBehaviourEventProcess` and all its associated logic.

See deprecation pull request #2784.

Find rational in #2751.

* build(deps): Update p256 requirement from 0.10.0 to 0.11.0

Updates the requirements on [p256](https://github.com/RustCrypto/elliptic-curves) to permit the latest version.
- [Release notes](https://github.com/RustCrypto/elliptic-curves/releases)
- [Commits](https://github.com/RustCrypto/elliptic-curves/commits/p256/v0.10.1)

---
updated-dependencies:
- dependency-name: p256
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

* core/: Bump version and add changelog entry

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Max Inden <mail@max-inden.de>

When using channels (e.g. `futures::channel::mpsc` or `std::sync::mpsc`)
always use the bounded variant, never use the unbounded variant. When
using a bounded channel, a slow consumer eventually slows down a fast
producer once the channel bound is reached, ideally granting the slow
consumer more system resources e.g. CPU time, keeping queues small and
thus latencies low.  When using an unbounded channel a fast producer
continues being a fast producer, growing the channel buffer
indefinitely, increasing latency until the illusion of unboundedness
breaks and the system runs out of memory.

One may use an unbounded channel if one enforces backpressure through an
out-of-band mechanism, e.g. the consumer granting the producer
send-tokens through a side-channel.

Add document outlining a set of coding guidelines followed and to be
followed across the rust-libp2p code base.

Co-authored-by: Thomas Eizinger <thomas@eizinger.io>

When generating an `OutEvent` `enum` definition for a user, derive `Debug`
for that `enum`.

Why not derive `Clone`, `PartialEq` and `Eq` for the generated `enum`
definition?

While it is fine to require all sub-`OutEvent`s to implement
`Debug`, the same does not apply to traits like `Clone`. I
suggest users that need `Clone` to define their own `OutEvent`.

….0 (#2822)

* build(deps): Update prometheus-client requirement from 0.17.0 to 0.18.0

Updates the requirements on [prometheus-client](https://github.com/prometheus/client_rust) to permit the latest version.
- [Release notes](https://github.com/prometheus/client_rust/releases)
- [Changelog](https://github.com/prometheus/client_rust/blob/master/CHANGELOG.md)
- [Commits](prometheus/client_rust@v0.17.0...v0.18.0)

---
updated-dependencies:
- dependency-name: prometheus-client
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

…2819)

When generating the `OutEvent` for a `NetworkBehaviour`, add the `where` clause of the
`NetworkBehaviour` `struct` to the generated `enum`.

Test that `HandlerWrapper` upholds the provided
`max_negotiating_inbound_streams` limit.

* build(deps): Update prost-build requirement from 0.10 to 0.11

Updates the requirements on [prost-build](https://github.com/tokio-rs/prost) to permit the latest version.
- [Release notes](https://github.com/tokio-rs/prost/releases)
- [Commits](tokio-rs/prost@v0.10.0...v0.11.0)

---
updated-dependencies:
- dependency-name: prost-build
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

* build(deps): Update prost requirement from 0.10 to 0.11

Updates the requirements on [prost](https://github.com/tokio-rs/prost) to permit the latest version.
- [Release notes](https://github.com/tokio-rs/prost/releases)
- [Commits](tokio-rs/prost@v0.10.0...v0.11.0)

---
updated-dependencies:
- dependency-name: prost
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

In preparation for #2751.

…2797)

This is to allow general-purpose background work to be performed
by implementations.

…#2802)

Generate `NetworkBehaviour::OutEvent` if not provided through
`#[behaviour(out_event = "MyOutEvent")]` and event processing is
disabled (default).

…2765)

Co-authored-by: Elena Frank <elena.frank@protonmail.com>
Co-authored-by: Max Inden <mail@max-inden.de>