Release Hermes v1.0.0-rc.2 (#2522)

* Bump Hermes to v1.0.0-rc.2

* Bump crates to 0.18.0 and ibc-proto to 0.19.1

* Update lockfile

* Add self-documenting `help` target to the Makefile

* Remove tutorial with raw commands from the guide

* Add changelog entry for #2459

* Update changelog and upgrading instructions

* Release version 1.0.0-rc.2 of the changelog

* Add changelog entry for #2466

* Add changelog entry for #2380

* Bump tendermint-rs dependencies to 0.23.9

* Bump prost to version 0.11

* Regenerate protos with Prost 0.11

* Update lockfiles

* Use our own fork of `ics23` with Prost 0.11

* Bump `ibc-proto` version to 0.20.0 because of the Prost update

* Bump `ics23` to 0.8.0

* Fix comment in proto definition

* Fix no-std-check Makefile

* Update `ics23` to version 0.8.1

* Update lockfile

* Fix typo

.changelog/v1.0.0-rc.2/features/ibc-relayer/2380-ipv6.md

@@ -0,0 +1,2 @@
+- Enable connecting to full nodes over IPv6
+  ([#2380](https://github.com/informalsystems/ibc-rs/issues/2380))

.changelog/v1.0.0-rc.2/improvements/guide/2459-2459.md

@@ -0,0 +1,2 @@
+- Document how to use HTTP basic authentication in the guide
+  ([#2459](https://github.com/informalsystems/ibc-rs/issues/2459))

.changelog/v1.0.0-rc.2/improvements/guide/2466-clean-raw-guide.md

@@ -0,0 +1,2 @@
+- Remove tutorial featuring raw commands from the guide
+  ([#2466](https://github.com/informalsystems/ibc-rs/issues/2466))

.changelog/v1.0.0-rc.2/summary.md

@@ -0,0 +1 @@
+This is the third release candidate for Hermes v1.0.0 🎉

CHANGELOG.md

@@ -1,7 +1,81 @@
 # CHANGELOG
 
+## v1.0.0-rc.2
+
+*August 3rd, 2022*
+
+This is the third release candidate for Hermes v1.0.0 🎉
+
+### Hermes - [`ibc-relayer-cli`](relayer-cli) (v1.0.0-rc.2)
+
+- Release version 1.0.0-rc.2 of Hermes (`ibc-relayer-cli`)
+
+### IBC Proto - [`ibc-proto`](proto) (v0.19.1)
+
+- Release version 0.19.2 of `ibc-proto`
+
+### IBC Modules - [`ibc`](modules) (v0.18.0)
+
+- Release version 0.18.0 of `ibc`
+
+### Relayer Library - [`ibc-relayer`](relayer) (v0.18.0)
+
+- Release version 0.18.0 of `ibc-relayer`
+
+#### BUG FIXES
+
+- For the `ConnOpenTry` and `ConnOpenAck` steps, wait for the destination
+  app height to be higher than the consensus height, otherwise we fail to
+  complete the handshake when the block times of the two chains involved differ
+  significantly ([#2433](https://github.com/informalsystems/ibc-rs/issues/2433))
+- Fix code that could result in message batch size growing above the transaction size limit
+  ([#2477](https://github.com/informalsystems/ibc-rs/issues/2477)).
+
+#### FEATURES
+
+- Enable connecting to full nodes over IPv6
+  ([#2380](https://github.com/informalsystems/ibc-rs/issues/2380))
+
+### Telemetry & Metrics - [`ibc-telemetry`](telemetry) (v0.18.0)
+
+- Release version 0.18.0 of `ibc-telemetry`
+
+#### IMROVEMENTS
+
+- Improve the metrics
+  - Renamed `oldest_sequence` metric to `backlog_oldest_sequence`
+  - Renamed `oldest_timestamp` metric to `backlog_oldest_timestamp`
+  - Introduced `backlog_size` Prometheus metric to complement the other `backlog_*` data,
+    as a metric reporting how many packets are pending on a channel
+  - Ensures the `backlog_oldest_sequence` and `backlog_oldest_timestamp` are correctly
+    updated when a timeout occurs or when another relayer clears the channel
+    ([#2451](https://github.com/informalsystems/ibc-rs/issues/2451))
+  - Ensures `backlog_timestamp` is never updated by a packet with a higher `sequence` than the oldest pending packet
+    ([#2469](https://github.com/informalsystems/ibc-rs/issues/2469))
+
+#### BUG FIXES
+
+- Fixed a bug with updating of Prometheus metrics in the presence of concurrent relayers
+  ([#2467](https://github.com/informalsystems/ibc-rs/issues/2467))
+
+### REST API - [`ibc-relayer-rest`](relayer-rest) (v0.18.0)
+
+- Release version 0.18.0 of `ibc-relayer-rest`
+
+### [Guide](guide)
+
+#### IMPROVEMENTS
+
+- Document how to use HTTP basic authentication in the guide
+  ([#2459](https://github.com/informalsystems/ibc-rs/issues/2459))
+- Remove tutorial featuring raw commands from the guide
+  ([#2466](https://github.com/informalsystems/ibc-rs/issues/2466))
+
+
 ## v1.0.0-rc.1
 
+*July 27th, 2022*
+
 This is the second release candidate for Hermes v1.0.0 🎉
 
 ### Note for operators

CONTRIBUTING.md

@@ -227,7 +227,7 @@ Our release process is as follows:
       in this release.
    3. Committing the updated `CHANGELOG.md` file and `.changelog` directory to the repo.
 2. Push this to a branch `release/vX.Y.Z` according to the version number of
-   the anticipated release (e.g. `release/v0.17.0`) and open a **draft PR**.
+   the anticipated release (e.g. `release/v0.18.0`) and open a **draft PR**.
 3. Bump all relevant versions in the codebase to the new version and push these
    changes to the release PR. This includes:
    1. All `Cargo.toml` files (making sure dependencies' versions are updated