There were several improvements and PRs that didn't apply to all
runtimes, so this PR attempts to align those small differences. In
addition, the PR eliminates unused dependencies across multiple modules.

Relates to PR for `polkadot-fellows`:
https://github.com/polkadot-fellows/runtimes/pull/154

The goal is to move all system chains on Rococo (+ other testnets?) to
use async backing.

Starting with `asset-hub-rococo` to get feedback, before I do the rest.

## Related

Example: https://github.com/paritytech/polkadot-sdk/pull/1619/
Guide:
https://github.com/w3f/polkadot-wiki/blob/master/docs/maintain/maintain-guides-async-backing.md

---------

Co-authored-by: Branislav Kontur <[email protected]>
Co-authored-by: Dónal Murray <[email protected]>

Clean up all the old syntax.

---------

Co-authored-by: command-bot <>
Co-authored-by: gupnik <[email protected]>
Co-authored-by: Nikhil Gupta <[email protected]>
Co-authored-by: Maksym H <[email protected]>

Update bridges subtree

This PR backports version bumps from release branch
`release-polkadot-v1.6.0` back to `master` and also moved `prdoc` files
related to the release to the appropriate folder

# Note for reviewer

Most changes are just syntax changes necessary for the new version.
Most important files should be the ones under the `xcm` folder.

# Description 

Added XCMv4.

## Removed `Multi` prefix
The following types have been renamed:
- MultiLocation -> Location
- MultiAsset -> Asset
- MultiAssets -> Assets
- InteriorMultiLocation -> InteriorLocation
- MultiAssetFilter -> AssetFilter
- VersionedMultiAsset -> VersionedAsset
- WildMultiAsset -> WildAsset
- VersionedMultiLocation -> VersionedLocation

In order to fix a name conflict, the `Assets` in `xcm-executor` were
renamed to `HoldingAssets`, as they represent assets in holding.

## Removed `Abstract` asset id

It was not being used anywhere and this simplifies the code.

Now assets are just constructed as follows:

```rust
let asset: Asset = (AssetId(Location::new(1, Here)), 100u128).into();
```

No need for specifying `Concrete` anymore.

## Outcome is now a named fields struct

Instead of

```rust
pub enum Outcome {
  Complete(Weight),
  Incomplete(Weight, Error),
  Error(Error),
}
```

we now have

```rust
pub enum Outcome {
  Complete { used: Weight },
  Incomplete { used: Weight, error: Error },
  Error { error: Error },
}
```

## Added Reanchorable trait

Now both locations and assets implement this trait, making it easier to
reanchor both.

## New syntax for building locations and junctions

Now junctions are built using the following methods:

```rust
let location = Location {
    parents: 1,
    interior: [Parachain(1000), PalletInstance(50), GeneralIndex(1984)].into()
};
```

or

```rust
let location = Location::new(1, [Parachain(1000), PalletInstance(50), GeneralIndex(1984)]);
```

And they are matched like so:

```rust
match location.unpack() {
  (1, [Parachain(id)]) => ...
  (0, Here) => ...,
  (1, [_]) => ...,
}
```

This syntax is mandatory in v4, and has been also implemented for v2 and
v3 for easier migration.

This was needed to make all sizes smaller.

# TODO
- [x] Scaffold v4
- [x] Port github.com/paritytech/polkadot/pull/7236
- [x] Remove `Multi` prefix
- [x] Remove `Abstract` asset id

---------

Co-authored-by: command-bot <>
Co-authored-by: Keith Yeung <[email protected]>

Bumps the known_good_semver group with 4 updates:
[serde](https://github.com/serde-rs/serde),
[serde_json](https://github.com/serde-rs/json),
[clap](https://github.com/clap-rs/clap) and
[syn](https://github.com/dtolnay/syn).

Updates `serde` from 1.0.194 to 1.0.195
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/serde-rs/serde/releases">serde's
releases</a>.</em></p>
<blockquote>
<h2>v1.0.195</h2>
<ul>
<li>Prevent remote definitions of tuple struct or tuple variant from
triggering dead_code warning (<a
href="https://redirect.github.com/serde-rs/serde/issues/2671">#2671</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/serde-rs/serde/commit/03eec42c3313b36da416be1486e9ecac345784d5"><code>03eec42</code></a>
Release 1.0.195</li>
<li><a
href="https://github.com/serde-rs/serde/commit/196f311ae2fd8ad94fe38a57830419859a4d3dbb"><code>196f311</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2671">#2671</a>
from dtolnay/deadremote</li>
<li><a
href="https://github.com/serde-rs/serde/commit/38d9e0b2091e9b6150486c2c37367819b86bcc39"><code>38d9e0b</code></a>
Revert &quot;Add FIXME to fix dead_code warning when using
serde(remote)&quot;</li>
<li><a
href="https://github.com/serde-rs/serde/commit/6502b3131697eff6420786ad71f87f29cfff3a13"><code>6502b31</code></a>
Fix new dead_code warning in tuple struct and tuple variant remote
defs</li>
<li><a
href="https://github.com/serde-rs/serde/commit/6f1a8c3115c8d2502178c25d610fbaee2e82c46b"><code>6f1a8c3</code></a>
Add FIXME to fix dead_code warning when using serde(remote)</li>
<li><a
href="https://github.com/serde-rs/serde/commit/d883c94cc9fe72d0512dc7f4def7191a401595c9"><code>d883c94</code></a>
Work around dead_code warning in tests</li>
<li><a
href="https://github.com/serde-rs/serde/commit/961fa59a7469c5b5e323b9723323df412048d60d"><code>961fa59</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2670">#2670</a>
from serde-rs/exhaustive</li>
<li><a
href="https://github.com/serde-rs/serde/commit/8bc71def551df190e6817d3311e5c76f751f53e6"><code>8bc71de</code></a>
Fill in omitted patterns for GenericArguments match</li>
<li><a
href="https://github.com/serde-rs/serde/commit/7c65a9dc0eab2d4d829b258a7b3549351bbe8dcd"><code>7c65a9d</code></a>
Pick up changes to non_exhaustive_omitted_patterns lint</li>
<li>See full diff in <a
href="https://github.com/serde-rs/serde/compare/v1.0.194...v1.0.195">compare
view</a></li>
</ul>
</details>
<br />

Updates `serde_json` from 1.0.110 to 1.0.111
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/serde-rs/json/releases">serde_json's
releases</a>.</em></p>
<blockquote>
<h2>v1.0.111</h2>
<ul>
<li>Improve floating point parsing performance on loongarch64 (<a
href="https://redirect.github.com/serde-rs/json/issues/1100">#1100</a>,
thanks <a
href="https://github.com/heiher"><code>@​heiher</code></a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/serde-rs/json/commit/0131ac68212e8094bd14ee618587d731b4f9a68b"><code>0131ac6</code></a>
Release 1.0.111</li>
<li><a
href="https://github.com/serde-rs/json/commit/96ecfadd3f7dd6366a2d07a098e228d15df93cb4"><code>96ecfad</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1100">#1100</a>
from heiher/limb-64-la64</li>
<li><a
href="https://github.com/serde-rs/json/commit/c80dbaf8ff5902ca670e0a48bbe495065b9314f5"><code>c80dbaf</code></a>
Set limb width to 64 for loongarch64</li>
<li>See full diff in <a
href="https://github.com/serde-rs/json/compare/v1.0.110...v1.0.111">compare
view</a></li>
</ul>
</details>
<br />

Updates `clap` from 4.4.12 to 4.4.13
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/clap-rs/clap/releases">clap's
releases</a>.</em></p>
<blockquote>
<h2>v4.4.13</h2>
<h2>[4.4.13] - 2024-01-04</h2>
<h3>Documentation</h3>
<ul>
<li>Fix link to structopt migration guide</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/clap-rs/clap/blob/master/CHANGELOG.md">clap's
changelog</a>.</em></p>
<blockquote>
<h2>[4.4.13] - 2024-01-04</h2>
<h3>Documentation</h3>
<ul>
<li>Fix link to structopt migration guide</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/clap-rs/clap/commit/2ab48b295c2463ce8c141a9868095b811ccf3b99"><code>2ab48b2</code></a>
chore: Release</li>
<li><a
href="https://github.com/clap-rs/clap/commit/7a06a8cd619db704c6d826bf752eae3b86ce23a8"><code>7a06a8c</code></a>
docs: Update changelog</li>
<li><a
href="https://github.com/clap-rs/clap/commit/cca190efedf40f48147a3a4a777a9cc17728abdf"><code>cca190e</code></a>
docs: Correct link to StructOpt migration guide</li>
<li><a
href="https://github.com/clap-rs/clap/commit/5c31f453c1a9f46109db8e0a47ed212748c0556c"><code>5c31f45</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/5281">#5281</a>
from Manishearth/safety-docs</li>
<li><a
href="https://github.com/clap-rs/clap/commit/ddae7e6f411c4c87294212152b8d9beea16637e7"><code>ddae7e6</code></a>
Correct safety docs</li>
<li><a
href="https://github.com/clap-rs/clap/commit/48d28aa689bfd0fb44ec025244b30ba261e2515a"><code>48d28aa</code></a>
chore: Release</li>
<li><a
href="https://github.com/clap-rs/clap/commit/748ce18cc2ccc3f7c07fa8b7c5b6f90ed9242b72"><code>748ce18</code></a>
docs: Update changelog</li>
<li><a
href="https://github.com/clap-rs/clap/commit/adbe6ec4cb6a617070c41927a389d0bea7b30936"><code>adbe6ec</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/5278">#5278</a>
from henry-hsieh/fix-nosort</li>
<li><a
href="https://github.com/clap-rs/clap/commit/2b48858ba84c62e9af97bee4734d70530254cd8a"><code>2b48858</code></a>
fix: Skip nosort option below bash 4.4</li>
<li><a
href="https://github.com/clap-rs/clap/commit/777b744102cde324dc75534ef043efc15a9f40be"><code>777b744</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/5277">#5277</a>
from clap-rs/renovate/actions-setup-python-5.x</li>
<li>Additional commits viewable in <a
href="https://github.com/clap-rs/clap/compare/v4.4.12...v4.4.13">compare
view</a></li>
</ul>
</details>
<br />

Updates `syn` from 2.0.47 to 2.0.48
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/dtolnay/syn/releases">syn's
releases</a>.</em></p>
<blockquote>
<h2>2.0.48</h2>
<ul>
<li>Improve error message on unexpected token after <code>else</code>
(<a
href="https://redirect.github.com/dtolnay/syn/issues/1578">#1578</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/dtolnay/syn/commit/5e16fc24e68b16a381cb7ef22455dba9db143083"><code>5e16fc2</code></a>
Release 2.0.48</li>
<li><a
href="https://github.com/dtolnay/syn/commit/dc40084b15ab4a443179fc39cbadac6452408838"><code>dc40084</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/syn/issues/1578">#1578</a>
from dtolnay/elseblock</li>
<li><a
href="https://github.com/dtolnay/syn/commit/82fcefce69d36e78301936c5af91f005d6a24357"><code>82fcefc</code></a>
Fix error message on unexpected token after 'else'</li>
<li><a
href="https://github.com/dtolnay/syn/commit/e8a5c68ad45194e575a923f6b1e08f1817196331"><code>e8a5c68</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/syn/issues/1576">#1576</a>
from dtolnay/exhaustive</li>
<li><a
href="https://github.com/dtolnay/syn/commit/97b1df6d935cb4801f4090782304577c8574d024"><code>97b1df6</code></a>
Pick up changes to non_exhaustive_omitted_patterns lint</li>
<li>See full diff in <a
href="https://github.com/dtolnay/syn/compare/2.0.47...2.0.48">compare
view</a></li>
</ul>
</details>
<br />


Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore <dependency name> major version` will close this
group update PR and stop Dependabot creating any more for the specific
dependency's major version (unless you unignore this specific
dependency's major version or upgrade to it yourself)
- `@dependabot ignore <dependency name> minor version` will close this
group update PR and stop Dependabot creating any more for the specific
dependency's minor version (unless you unignore this specific
dependency's minor version or upgrade to it yourself)
- `@dependabot ignore <dependency name>` will close this group update PR
and stop Dependabot creating any more for the specific dependency
(unless you unignore this specific dependency or upgrade to it yourself)
- `@dependabot unignore <dependency name>` will remove all of the ignore
conditions of the specified dependency
- `@dependabot unignore <dependency name> <ignore condition>` will
remove the ignore condition of the specified dependency and ignore
conditions


</details>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps the known_good_semver group with 4 updates:
[serde](https://github.com/serde-rs/serde),
[serde_json](https://github.com/serde-rs/json),
[clap](https://github.com/clap-rs/clap) and
[serde_yaml](https://github.com/dtolnay/serde-yaml).

Updates `serde` from 1.0.193 to 1.0.194
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/serde-rs/serde/releases">serde's
releases</a>.</em></p>
<blockquote>
<h2>v1.0.194</h2>
<ul>
<li>Update proc-macro2 to fix caching issue when using a rustc-wrapper
such as sccache</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/serde-rs/serde/commit/d2d977a6c6dcff237ae956336d18b0c900c61aad"><code>d2d977a</code></a>
Release 1.0.194</li>
<li><a
href="https://github.com/serde-rs/serde/commit/a9a6ee9d7f2e3a3306ad7c7a8f21dcf369c6acb7"><code>a9a6ee9</code></a>
Pull in proc-macro2 sccache fix</li>
<li><a
href="https://github.com/serde-rs/serde/commit/28c5d215c11b66368b725f04cb92e49e4350bcdc"><code>28c5d21</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2669">#2669</a>
from dtolnay/optionifletelse</li>
<li><a
href="https://github.com/serde-rs/serde/commit/3d6a789562579fb7ea783e0d7f35530914d8baca"><code>3d6a789</code></a>
Remove option_if_let_else clippy suppression</li>
<li><a
href="https://github.com/serde-rs/serde/commit/a0e68698e33fa928f1d9f208d68b17df9f8bb568"><code>a0e6869</code></a>
Work around doc_link_with_quotes pedantic clippy lint</li>
<li>See full diff in <a
href="https://github.com/serde-rs/serde/compare/v1.0.193...v1.0.194">compare
view</a></li>
</ul>
</details>
<br />

Updates `serde_json` from 1.0.108 to 1.0.110
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/serde-rs/json/releases">serde_json's
releases</a>.</em></p>
<blockquote>
<h2>v1.0.109</h2>
<ul>
<li>Documentation improvements</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/serde-rs/json/commit/df5cf215b70fb6341b255e7c0a210c06f64c0669"><code>df5cf21</code></a>
Release 1.0.110</li>
<li><a
href="https://github.com/serde-rs/json/commit/c35856a93c37b48b3d6efc4fec8e05554dd3f9d5"><code>c35856a</code></a>
Pull in proc-macro2 sccache fix</li>
<li><a
href="https://github.com/serde-rs/json/commit/f88bf1fccb05aa4de129675de44eb6aaf3fec0a0"><code>f88bf1f</code></a>
Release 1.0.109</li>
<li><a
href="https://github.com/serde-rs/json/commit/bb62c73ecef901e689b0a7a67ed613a32975520c"><code>bb62c73</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1097">#1097</a>
from serde-rs/doccfg</li>
<li><a
href="https://github.com/serde-rs/json/commit/df36d109fd9f9cdd22a874c0177cafec12237f95"><code>df36d10</code></a>
Restore doc cfg on re-exports</li>
<li><a
href="https://github.com/serde-rs/json/commit/c3670913423329c166add9d85ecdfc3e3da21e7a"><code>c367091</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1095">#1095</a>
from dtolnay/hashtest</li>
<li><a
href="https://github.com/serde-rs/json/commit/b328ee7df4dd772922f084600aa7cea39218b694"><code>b328ee7</code></a>
Eliminate hash closure in favor of calling hash_one directly</li>
<li><a
href="https://github.com/serde-rs/json/commit/b9bcbad3c094042f79f1a45189ec0edbb8f9f322"><code>b9bcbad</code></a>
Use BuildHasher::hash_one</li>
<li><a
href="https://github.com/serde-rs/json/commit/7ff6c9e30c2ecc2cdcf089ed86c7ccfe7a41721c"><code>7ff6c9e</code></a>
Use random hasher state for number hashing test</li>
<li><a
href="https://github.com/serde-rs/json/commit/fe031cd1de4dde5b47e0f18934632b41bd18b48d"><code>fe031cd</code></a>
Delete trace_macros! functionality from test</li>
<li>Additional commits viewable in <a
href="https://github.com/serde-rs/json/compare/v1.0.108...v1.0.110">compare
view</a></li>
</ul>
</details>
<br />

Updates `clap` from 4.4.11 to 4.4.12
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/clap-rs/clap/releases">clap's
releases</a>.</em></p>
<blockquote>
<h2>v4.4.12</h2>
<h2>[4.4.12] - 2023-12-28</h2>
<h3>Performance</h3>
<ul>
<li>Only ask <code>TypedValueParser</code> for possible values if
needed</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/clap-rs/clap/blob/master/CHANGELOG.md">clap's
changelog</a>.</em></p>
<blockquote>
<h2>[4.4.12] - 2023-12-28</h2>
<h3>Performance</h3>
<ul>
<li>Only ask <code>TypedValueParser</code> for possible values if
needed</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/clap-rs/clap/commit/6d601e6f312857d78f47741268f1748840484d4a"><code>6d601e6</code></a>
chore: Release</li>
<li><a
href="https://github.com/clap-rs/clap/commit/048e7f0fbc4f8108894e4307af768c8d332a0576"><code>048e7f0</code></a>
docs: Update changelog</li>
<li><a
href="https://github.com/clap-rs/clap/commit/53f5b820988c1c03f0d2696fc144857ad461edc1"><code>53f5b82</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/5267">#5267</a>
from vermiculus/sa/avoid-pv-expansion-in-help</li>
<li><a
href="https://github.com/clap-rs/clap/commit/05cd057978db743a65fb5fde33213af752d064e7"><code>05cd057</code></a>
perf: Avoid retrieving possible_values unless used</li>
<li><a
href="https://github.com/clap-rs/clap/commit/29208083b0598ba7d1b80e79821c0ba3eb2342ce"><code>2920808</code></a>
test: Update snapshots</li>
<li><a
href="https://github.com/clap-rs/clap/commit/28763ebb6d8714f6ca588bf477729040e0e760b0"><code>28763eb</code></a>
chore: Release</li>
<li><a
href="https://github.com/clap-rs/clap/commit/ace7bb5b4570b030f7c2d0fa91e0afaaac1b0030"><code>ace7bb5</code></a>
docs(complete): Update changelog</li>
<li><a
href="https://github.com/clap-rs/clap/commit/76beca4d4d42a817bbb578f23553c64ded2aea97"><code>76beca4</code></a>
docs(complete): Polish API reference for dynamic</li>
<li><a
href="https://github.com/clap-rs/clap/commit/3630e582d3ec59912b8e9369c38687695ddb1f43"><code>3630e58</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/5273">#5273</a>
from epage/docsrs</li>
<li><a
href="https://github.com/clap-rs/clap/commit/3724b9e2e4c2a2e69337b6d809949b246d3fef39"><code>3724b9e</code></a>
docs: Include more content on docs.rs</li>
<li>See full diff in <a
href="https://github.com/clap-rs/clap/compare/v4.4.11...v4.4.12">compare
view</a></li>
</ul>
</details>
<br />

Updates `serde_yaml` from 0.9.29 to 0.9.30
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/dtolnay/serde-yaml/releases">serde_yaml's
releases</a>.</em></p>
<blockquote>
<h2>0.9.30</h2>
<ul>
<li>Update proc-macro2 to fix caching issue when using a rustc-wrapper
such as sccache</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/dtolnay/serde-yaml/commit/09ee25156f608f95150b27edd120bd5471db3c64"><code>09ee251</code></a>
Release 0.9.30</li>
<li><a
href="https://github.com/dtolnay/serde-yaml/commit/caea939ece85ab54ac41de0672d683905f1e406a"><code>caea939</code></a>
Pull in proc-macro2 sccache fix</li>
<li><a
href="https://github.com/dtolnay/serde-yaml/commit/d255918c141fd72d01f169bb5aa0152234981699"><code>d255918</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/serde-yaml/issues/403">#403</a>
from dtolnay/optionifletelse</li>
<li><a
href="https://github.com/dtolnay/serde-yaml/commit/8cfeedd766f83dab24d03b9fb11b72886a247425"><code>8cfeedd</code></a>
Remove option_if_let_else clippy suppression</li>
<li>See full diff in <a
href="https://github.com/dtolnay/serde-yaml/compare/0.9.29...0.9.30">compare
view</a></li>
</ul>
</details>
<br />


Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore <dependency name> major version` will close this
group update PR and stop Dependabot creating any more for the specific
dependency's major version (unless you unignore this specific
dependency's major version or upgrade to it yourself)
- `@dependabot ignore <dependency name> minor version` will close this
group update PR and stop Dependabot creating any more for the specific
dependency's minor version (unless you unignore this specific
dependency's minor version or upgrade to it yourself)
- `@dependabot ignore <dependency name>` will close this group update PR
and stop Dependabot creating any more for the specific dependency
(unless you unignore this specific dependency or upgrade to it yourself)
- `@dependabot unignore <dependency name>` will remove all of the ignore
conditions of the specified dependency
- `@dependabot unignore <dependency name> <ignore condition>` will
remove the ignore condition of the specified dependency and ignore
conditions


</details>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

- Updates all safe call filters to allow `system::authorize_upgrade`.
- Updates Coretime safe call filter to allow `sudo` and
`system_set_storage`.
- Update Coretime teleports to allow teleportation with other system
chains.

---------

Co-authored-by: Bastian Köcher <[email protected]>

related to
https://github.com/paritytech/parity-bridges-common/issues/2739

# Description

Adds Snowbridge to the Rococo bridge hub runtime. Includes config
changes required in Rococo asset hub.

---------

Co-authored-by: Alistair Singh <[email protected]>
Co-authored-by: ron <[email protected]>
Co-authored-by: Vincent Geddes <[email protected]>
Co-authored-by: claravanstaden <Cats 4 life!>

Adds the `authorize_upgrade` -> `enact_authorized_upgrade` pattern to
`frame-system`. This will be useful for upgrading bridged chains that
are under the governance of Polkadot without passing entire runtime Wasm
blobs over a bridge.

Notes:

- Changed `enact_authorized_upgrade` to `apply_authorized_upgrade`.
Personal opinion, "apply" more accurately expresses what it's doing. Can
change back if outvoted.
- Remove `check_version` in favor of two extrinsics, so as to make
_checked_ the default.
- Left calls in `parachain-system` and marked as deprecated to prevent
breaking the API. They just call into the `frame-system` functions.
- Updated `frame-system` benchmarks to v2 syntax.

---------

Co-authored-by: command-bot <>

This PR contains just a few clippy fixes and nits, which are, however,
relaxed by workspace clippy settings here:
https://github.com/paritytech/polkadot-sdk/blob/master/Cargo.toml#L483-L506

---------

Co-authored-by: Dmitry Sinyavin <[email protected]>
Co-authored-by: ordian <[email protected]>
Co-authored-by: command-bot <>
Co-authored-by: Bastian Köcher <[email protected]>

This PR adds possibility for relay chain governance to halt and resume
bridge pallets using XCM calls. Following calls are enabled over XCM for
the `root` origin: `pallet_bridge_grandpa::set_operating_mode`,
`pallet_bridge_parachains::set_operating_mode` and
`pallet_bridge_messages::set_operating_mode`.

In the move from the old `Currency` traits to the new `fungible/s`
family of traits, we already had the `FungiblesAdapter` and
`NonFungiblesAdapter` for multiple fungible and non fungible assets
respectively. However, for handling only one fungible asset, we were
missing a `FungibleAdapter`, and so used the old `CurrencyAdapter`
instead. This PR aims to fill in that gap, and provide the new adapter
for more updated examples.

I marked the old `CurrencyAdapter` as deprecated as part of this PR, and
I'll change it to the new `FungibleAdapter` in a following PR.
The two stages are separated so as to not bloat this PR with some name
fixes in tests.

---------

Co-authored-by: command-bot <>

This PR backports `transaction_version` bump from `1.5.0` release back
to `master`

We currently use a bit of a hack in `.cargo/config` to make sure that
clippy isn't too annoying by specifying the list of lints.

There is now a stable way to define lints for a workspace. The only down
side is that every crate seems to have to opt into this so there's a
*few* files modified in this PR.

Dependencies:

- [x] PR that upgrades CI to use rust 1.74 is merged.

---------

Co-authored-by: joe petrowski <[email protected]>
Co-authored-by: Branislav Kontur <[email protected]>
Co-authored-by: Liam Aharon <[email protected]>

Co-authored-by: command-bot <>

So far the `bridge-hub-test-utils` contained a tests set for testing
BridgeHub runtime that is bridging with the remote **parachain**. But we
have https://github.com/paritytech/polkadot-sdk/pull/2540 coming, which
would add Rococo <> Bulletin chain bridge (where Bulletin = standalone
chain that is using GRANDPA finality). Then it'll be expanded to
Polkadot BH as well.

So this PR adds the same set of tests to the `bridge-hub-test-utils`,
but for the case when remote chain is the chain with GRANDPA finality.
There's a lot of changes in this PR - I'll describe some:
- I've added `BasicParachainRuntime` trait to decrease number of lines
we need to add to `where` clause. Could revert, but imo it is useful;
- `cumulus/parachains/runtimes/bridge-hubs/test-utils/src/test_data` is
a submodule for generating test data for the test sets.
`from_parachain.rs` is used in tests for the case when remote chain is a
parachain, `from_grandpa_chain.rs` - for the bridges with remote GRANDPA
chains. `mod.rs` has some code, shared by both types of tests;
- `cumulus/parachains/runtimes/bridge-hubs/test-utils/src/test_data` is
a submodule with all test cases. The `mod.rs` has tests, suitable for
all cases. There's also `wth_parachain.rs` and `with_grandpa_chain.rs`
with the same meaning as above;
- I've merged the "core" code of two previous tests -
`relayed_incoming_message_works` and `complex_relay_extrinsic_works`
into one single `relayed_incoming_message_works` test. So now we are
always constructing extrinsics and are dispatching them using executive
module (meaning all signed extensions are also tested).

New test set is used here:
https://github.com/paritytech/polkadot-sdk/pull/2540. Once this PR is
merged, I'll merge that other PR with master to remove duplicate
changes.

I'm also planning to cleanup generic constraints + remove some
unnecessary assumptions about used chains in a follow-up PRs. But for
now I think this PR has enough changes, so don't want to complicate it
even more.

---

Breaking changes for the code that have used those tests before:
- the `construct_and_apply_extrinsic` callback now accepts the
`RuntimeCall` instead of the `pallet_utility::Call`;
- the `construct_and_apply_extrinsic` now may be called multiple times
for the single test, so make sure the `frame_system::CheckNonce` is
correctly constructed;
- all previous tests have been moved from
`bridge_hub_test_utils::test_cases` to
`bridge_hub_test_utils::test_cases::from_parachain` module;
- there are several changes in test arguments - please refer to
https://github.com/paritytech/polkadot-sdk/compare/sv-tests-for-bridge-with-remote-grandpa-chain?expand=1#diff-79a28d4d3e1749050341c2424f00c4c139825b1a20937767f83e58b95166735c
for details.

We were not filtering for sibling parachains, but for sibling anything

---------

Co-authored-by: Branislav Kontur <[email protected]>
Co-authored-by: command-bot <>

## Summary

This pull request proposes a solution for improved control of the
versioned XCM flow over the bridge (across different consensus chains)
and resolves the situation where the sending chain/consensus has already
migrated to a higher XCM version than the receiving chain/consensus.

## Problem/Motivation

The current flow over the bridge involves a transfer from AssetHubRococo
(AHR) to BridgeHubRococo (BHR) to BridgeHubWestend (BHW) and finally to
AssetHubWestend (AHW), beginning with a reserve-backed transfer on AHR.

In this process:
1. AHR sends XCM `ExportMessage` through `XcmpQueue`, incorporating XCM
version checks using the `WrapVersion` feature, influenced by
`pallet_xcm::SupportedVersion` (managed by
`pallet_xcm::force_xcm_version` or version discovery).

2. BHR handles the `ExportMessage` instruction, utilizing the latest XCM
version. The `HaulBlobExporter` converts the inner XCM to
[`VersionedXcm::from`](https://github.com/paritytech/polkadot-sdk/blob/63ac2471/polkadot/xcm/xcm-builder/src/universal_exports.rs#L465-L467),
also using the latest XCM version.

However, challenges arise:
- Incompatibility when BHW uses a different version than BHR. For
instance, if BHR migrates to **XCMv4** while BHW remains on **XCMv3**,
BHR's `VersionedXcm::from` uses `VersionedXcm::V4` variant, causing
encoding issues for BHW.
  ```
	/// Just a simulation of possible error, which could happen on BHW
	/// (this code is based on actual master without XCMv4)
	let encoded = hex_literal::hex!("0400");
	println!("{:?}", VersionedXcm::<()>::decode(&mut &encoded[..]));

Err(Error { cause: None, desc: "Could not decode `VersionedXcm`, variant
doesn't exist" })
  ``` 
- Similar compatibility issues exist between AHR and AHW.

## Solution

This pull request introduces the following solutions:

1. **New trait `CheckVersion`** - added to the `xcm` module and exposing
`pallet_xcm::SupportedVersion`. This enhancement allows checking the
actual XCM version for desired destinations outside of the `pallet_xcm`
module.

2. **Version Check in `HaulBlobExporter`** uses `CheckVersion` to check
known/configured destination versions, ensuring compatibility. For
example, in the scenario mentioned, BHR can store the version `3` for
BHW. If BHR is on XCMv4, it will attempt to downgrade the message to
version `3` instead of using the latest version `4`.

3. **Version Check in `pallet-xcm-bridge-hub-router`** - this check
ensures compatibility with the real destination's XCM version,
preventing the unnecessary sending of messages to the local bridge hub
if versions are incompatible.

These additions aim to improve the control and compatibility of XCM
flows over the bridge and addressing issues related to version
mismatches.

## Possible alternative solution

_(More investigation is needed, and at the very least, it should extend
to XCMv4/5. If this proves to be a viable option, I can open an RFC for
XCM.)._

Add the `XcmVersion` attribute to the `ExportMessage` so that the
sending chain can determine, based on what is stored in
`pallet_xcm::SupportedVersion`, the version the destination is using.
This way, we may not need to handle the version in `HaulBlobExporter`.

```
ExportMessage {
	network: NetworkId,
	destination: InteriorMultiLocation,
	xcm: Xcm<()>
	destination_xcm_version: Version, // <- new attritbute
},
```

```
pub trait ExportXcm {
        fn validate(
		network: NetworkId,
		channel: u32,
		universal_source: &mut Option<InteriorMultiLocation>,
		destination: &mut Option<InteriorMultiLocation>,
		message: &mut Option<Xcm<()>>,
                destination_xcm_version: Version, , // <- new attritbute
	) -> SendResult<Self::Ticket>;
```

## Future Directions

This PR does not fix version discovery over bridge, further
investigation will be conducted here:
https://github.com/paritytech/polkadot-sdk/issues/2417.

## TODO

- [x] `pallet_xcm` mock for tests uses hard-coded XCM version `2` -
change to 3 or lastest?
- [x] fix `pallet-xcm-bridge-hub-router`
- [x] fix HaulBlobExporter with version determination
[here](https://github.com/paritytech/polkadot-sdk/blob/2183669d/polkadot/xcm/xcm-builder/src/universal_exports.rs#L465)
- [x] add unit-tests to the runtimes
- [x] run benchmarks for `ExportMessage`
- [x] extend local run scripts about `force_xcm_version(dest, version)`
- [ ] when merged, prepare governance calls for Rococo/Westend
- [ ] add PRDoc

Part of: https://github.com/paritytech/parity-bridges-common/issues/2719

---------

Co-authored-by: command-bot <>

This PR introduces a script and some templates to use the prdoc involved
in a release and build:
- the changelog
- a simple draft of audience documentation

Since the prdoc presence was enforced in the middle of the version
1.5.0, not all PRs did come with a `prdoc` file.
This PR creates all the missing `prdoc` files with some minimum content
allowing to properly generate the changelog.
The generated content is **not** suitable for the audience
documentation.

The audience documentation will be possible with the next version, when
all PR come with a proper `prdoc`.

## Assumptions

- the prdoc files for release `vX.Y.Z` have been moved under
`prdoc/X.Y.Z`
- the changelog requires for now for the prdoc files to contain author +
topic. Thos fields are optional.

The build script can  be called as:
```
VERSION=X.Y.Z ./scripts/release/build-changelogs.sh
```

Related:
-  #1408

---------

Co-authored-by: EgorPopelyaev <[email protected]>

As suggested in this thread:
https://github.com/polkadot-fellows/runtimes/pull/87#discussion_r1400237122

We already have the `IsChildSystemParachain`, which may be used at relay
chain, but it can't be used at a parachain level. So let's use
`AllSiblingSystemParachains` for that. I was thinking about
`AllSystemParachains`, but it may cause wrong impression that it can be
used at a relay chain level.

---------

Co-authored-by: joe petrowski <[email protected]>

## Summary

This PR aligns Rococo/Westend bridge with latest Bridges repo
development:
- https://github.com/paritytech/parity-bridges-common/pull/2727
- https://github.com/paritytech/parity-bridges-common/pull/2728
- https://github.com/paritytech/parity-bridges-common/pull/2729




Part of: https://github.com/paritytech/parity-bridges-common/issues/2452

# Motivation (+testing)

### Enable easy `ForeignAssets` transfers using `pallet-xcm` 

We had just previously added capabilities to teleport fees during
reserve-based transfers, but what about reserve-transferring fees when
needing to teleport some non-fee asset?

This PR aligns everything under either explicit reserve-transfer,
explicit teleport, or this new flexible `transfer_assets()` which can
mix and match as needed with fewer artificial constraints imposed to the
user.

This will enable, for example, a (non-system) parachain to teleport
their `ForeignAssets` assets to AssetHub while using DOT to pay fees.
(the assets are teleported - as foreign assets should from their owner
chain - while DOT used for fees can only be reserve-based transferred
between said parachain and AssetHub).

Added `xcm-emulator` tests for this scenario ^.

# Description

Reverts `(limited_)reserve_transfer_assets` to only allow reserve-based
transfers for all `assets` including fees.

Similarly `(limited_)teleport_assets` only allows teleports for all
`assets` including fees.
    
For complex combinations of asset transfers where assets and fees may
have different reserves or different reserve/teleport trust
configurations, users can use the newly added `transfer_assets()`
extrinsic which is more flexible in allowing more complex scenarios.

`assets` (excluding `fees`) must have same reserve location or otherwise
be teleportable to `dest`.
No limitations imposed on `fees`.

- for local reserve: transfer assets to sovereign account of destination
chain and forward a notification XCM to `dest` to mint and deposit
reserve-based assets to `beneficiary`.
- for destination reserve: burn local assets and forward a notification
to `dest` chain to withdraw the reserve assets from this chain's
sovereign account and deposit them to `beneficiary`.
- for remote reserve: burn local assets, forward XCM to reserve chain to
move reserves from this chain's SA to `dest` chain's SA, and forward
another XCM to `dest` to mint and deposit reserve-based assets to
`beneficiary`.
- for teleports: burn local assets and forward XCM to `dest` chain to
mint/teleport assets and deposit them to `beneficiary`.

## Review notes

Only around 500 lines are prod code (see `pallet_xcm/src/lib.rs`), the
rest of the PR is new tests and improving existing tests.

---------

Co-authored-by: command-bot <>

Removes obsolete fields from the `QueueConfigData` structure. For the
remaining fields, if they use the old defaults, we replace them with the
new defaults.

Resolves: https://github.com/paritytech/polkadot-sdk/issues/1795

Using taplo, fixes all our broken and inconsistent toml formatting and
adds CI to keep them tidy.

If people want we can customise the format rules as described here
https://taplo.tamasfe.dev/configuration/formatter-options.html

@ggwpez

, I suggest zepter is used only for checking features are
propagated, and leave formatting for taplo to avoid duplicate work and
conflicts.

TODO
- [x] Use `exclude = [...]` syntax in taplo file to ignore zombienet
tests instead of deleting the dir

---------

Signed-off-by: Oliver Tale-Yazdi <[email protected]>
Co-authored-by: Oliver Tale-Yazdi <[email protected]>
Co-authored-by: Bastian Köcher <[email protected]>

Bumps the known_good_semver group with 2 updates:
[serde](https://github.com/serde-rs/serde) and
[clap](https://github.com/clap-rs/clap).

Updates `serde` from 1.0.188 to 1.0.193
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/serde-rs/serde/releases">serde's
releases</a>.</em></p>
<blockquote>
<h2>v1.0.193</h2>
<ul>
<li>Fix field names used for the deserialization of
<code>RangeFrom</code> and <code>RangeTo</code> (<a
href="https://redirect.github.com/serde-rs/serde/issues/2653">#2653</a>,
<a
href="https://redirect.github.com/serde-rs/serde/issues/2654">#2654</a>,
<a
href="https://redirect.github.com/serde-rs/serde/issues/2655">#2655</a>,
thanks <a
href="https://github.com/emilbonnek"><code>@​emilbonnek</code></a>)</li>
</ul>
<h2>v1.0.192</h2>
<ul>
<li>Allow internal tag field in untagged variant (<a
href="https://redirect.github.com/serde-rs/serde/issues/2646">#2646</a>,
thanks <a
href="https://github.com/robsdedude"><code>@​robsdedude</code></a>)</li>
</ul>
<h2>v1.0.191</h2>
<ul>
<li>Documentation improvements</li>
</ul>
<h2>v1.0.190</h2>
<ul>
<li>Preserve NaN sign when deserializing f32 from f64 or vice versa (<a
href="https://redirect.github.com/serde-rs/serde/issues/2637">#2637</a>)</li>
</ul>
<h2>v1.0.189</h2>
<ul>
<li>Fix &quot;cannot infer type&quot; error when internally tagged enum
contains untagged variant (<a
href="https://redirect.github.com/serde-rs/serde/issues/2613">#2613</a>,
thanks <a href="https://github.com/ahl"><code>@​ahl</code></a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/serde-rs/serde/commit/44613c7d0190dbb5ecd2d5ec19c636f45b7488cc"><code>44613c7</code></a>
Release 1.0.193</li>
<li><a
href="https://github.com/serde-rs/serde/commit/c706281df3c8d50dba1763f19c856df2746eba6c"><code>c706281</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2655">#2655</a>
from dtolnay/rangestartend</li>
<li><a
href="https://github.com/serde-rs/serde/commit/65d75b8fe3105f00ab2e01537d568d4587167582"><code>65d75b8</code></a>
Add RangeFrom and RangeTo tests</li>
<li><a
href="https://github.com/serde-rs/serde/commit/332b0cba40bcbcc7a6b23a9706277c54791a9856"><code>332b0cb</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2654">#2654</a>
from dtolnay/rangestartend</li>
<li><a
href="https://github.com/serde-rs/serde/commit/8c4af412969086bc8f54fdc2a079d373632e0a03"><code>8c4af41</code></a>
Fix more RangeFrom / RangeEnd mixups</li>
<li><a
href="https://github.com/serde-rs/serde/commit/24a78f071b22ae491eec4127be696ac255b9b5d3"><code>24a78f0</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2653">#2653</a>
from emilbonnek/fix/range-to-from-de-mixup</li>
<li><a
href="https://github.com/serde-rs/serde/commit/c91c33436d7aaef7472ebc18b734ddc9b5bd11fa"><code>c91c334</code></a>
Fix Range{From,To} deserialize mixup</li>
<li><a
href="https://github.com/serde-rs/serde/commit/2083f43a287cac8302009fda5bbe41518dd83209"><code>2083f43</code></a>
Update ui test suite to nightly-2023-11-19</li>
<li><a
href="https://github.com/serde-rs/serde/commit/4676abdc9e6bbbddfb33a00ce8d7e81e92f01120"><code>4676abd</code></a>
Release 1.0.192</li>
<li><a
href="https://github.com/serde-rs/serde/commit/35700eb23e21d8cb198ef4a422ddad13b855ce3b"><code>35700eb</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2646">#2646</a>
from robsdedude/fix/2643/allow-tag-field-in-untagged</li>
<li>Additional commits viewable in <a
href="https://github.com/serde-rs/serde/compare/v1.0.188...v1.0.193">compare
view</a></li>
</ul>
</details>
<br />

Updates `clap` from 4.4.6 to 4.4.10
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
href="https://github.com/clap-rs/clap/releases">clap's
releases</a>.</em></p>
<blockquote>
<h2>v4.4.10</h2>
<h2>[4.4.10] - 2023-11-28</h2>
<h3>Documentation</h3>
<ul>
<li>Link out to changelog</li>
<li>Cross link derive's attribute reference to derive tutorial</li>
</ul>
<h2>v4.4.9</h2>
<h2>[4.4.9] - 2023-11-27</h2>
<h3>Fixes</h3>
<ul>
<li><em>(help)</em> Show correct <code>Command::about</code> under
flattened headings</li>
<li><em>(help)</em> Respect <code>hide</code> when flattening
subcommands</li>
</ul>
<h2>v4.4.8</h2>
<h2>[4.4.8] - 2023-11-10</h2>
<h3>Features</h3>
<ul>
<li>Add <code>Command::flatten_help</code> to allow <code>git stash
-h</code> like help for subcommands</li>
</ul>
</blockquote>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/clap-rs/clap/blob/master/CHANGELOG.md">clap's
changelog</a>.</em></p>
<blockquote>
<h2>[4.4.10] - 2023-11-28</h2>
<h3>Documentation</h3>
<ul>
<li>Link out to changelog</li>
<li>Cross link derive's attribute reference to derive tutorial</li>
</ul>
<h2>[4.4.9] - 2023-11-27</h2>
<h3>Fixes</h3>
<ul>
<li><em>(help)</em> Show correct <code>Command::about</code> under
flattened headings</li>
<li><em>(help)</em> Respect <code>hide</code> when flattening
subcommands</li>
</ul>
<h2>[4.4.8] - 2023-11-10</h2>
<h3>Features</h3>
<ul>
<li>Add <code>Command::flatten_help</code> to allow <code>git stash
-h</code> like help for subcommands</li>
</ul>
<h2>[4.4.7] - 2023-10-24</h2>
<h3>Performance</h3>
<ul>
<li>Reduced code size</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/clap-rs/clap/commit/c0a1814d3c1d93c18faaedc95fd251846e47f4fe"><code>c0a1814</code></a>
chore: Release</li>
<li><a
href="https://github.com/clap-rs/clap/commit/c83e681e20b05f7e128088f47f8fcfc44e8ea166"><code>c83e681</code></a>
docs: Update changelog</li>
<li><a
href="https://github.com/clap-rs/clap/commit/91bcac4ca9d442786f554abeb7b1ed6d7a464a42"><code>91bcac4</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/5230">#5230</a>
from epage/migrate</li>
<li><a
href="https://github.com/clap-rs/clap/commit/030d87505d150345ddd425c1df21c034d2ae7748"><code>030d875</code></a>
docs: Link out to the changelog at the relevant tag</li>
<li><a
href="https://github.com/clap-rs/clap/commit/b661a9de04aebd1adaaafdbf7e470f07a8d8a36d"><code>b661a9d</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/5229">#5229</a>
from epage/derive</li>
<li><a
href="https://github.com/clap-rs/clap/commit/a08587b00e347492165ded1415bad6ab339e9f0b"><code>a08587b</code></a>
docs(derive): Link to tutorial sections for attributes</li>
<li><a
href="https://github.com/clap-rs/clap/commit/21b671f689bc0b8d790dc8c42902c22822bf6f82"><code>21b671f</code></a>
chore: Release</li>
<li><a
href="https://github.com/clap-rs/clap/commit/93ba76dbaaf9136313a4fe2978693cc39fa467dd"><code>93ba76d</code></a>
docs: Update changelog</li>
<li><a
href="https://github.com/clap-rs/clap/commit/c1c55b30d853446e2cab78664c0d22c1b77d4dfd"><code>c1c55b3</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/5228">#5228</a>
from epage/flat</li>
<li><a
href="https://github.com/clap-rs/clap/commit/b13f6d98622b80ba30e63c2c6e65d218cc8a4de3"><code>b13f6d9</code></a>
fix(help): Hide 'help' if only flattened subcommand</li>
<li>Additional commits viewable in <a
href="https://github.com/clap-rs/clap/compare/v4.4.6...v4.4.10">compare
view</a></li>
</ul>
</details>
<br />


Dependabot will resolve any conflicts with this PR as long as you don't
alter it yourself. You can also trigger a rebase manually by commenting
`@dependabot rebase`.

[//]: # (dependabot-automerge-start)
[//]: # (dependabot-automerge-end)

---

<details>
<summary>Dependabot commands and options</summary>
<br />

You can trigger Dependabot actions by commenting on this PR:
- `@dependabot rebase` will rebase this PR
- `@dependabot recreate` will recreate this PR, overwriting any edits
that have been made to it
- `@dependabot merge` will merge this PR after your CI passes on it
- `@dependabot squash and merge` will squash and merge this PR after
your CI passes on it
- `@dependabot cancel merge` will cancel a previously requested merge
and block automerging
- `@dependabot reopen` will reopen this PR if it is closed
- `@dependabot close` will close this PR and stop Dependabot recreating
it. You can achieve the same result by closing it manually
- `@dependabot show <dependency name> ignore conditions` will show all
of the ignore conditions of the specified dependency
- `@dependabot ignore <dependency name> major version` will close this
group update PR and stop Dependabot creating any more for the specific
dependency's major version (unless you unignore this specific
dependency's major version or upgrade to it yourself)
- `@dependabot ignore <dependency name> minor version` will close this
group update PR and stop Dependabot creating any more for the specific
dependency's minor version (unless you unignore this specific
dependency's minor version or upgrade to it yourself)
- `@dependabot ignore <dependency name>` will close this group update PR
and stop Dependabot creating any more for the specific dependency
(unless you unignore this specific dependency or upgrade to it yourself)
- `@dependabot unignore <dependency name>` will remove all of the ignore
conditions of the specified dependency
- `@dependabot unignore <dependency name> <ignore condition>` will
remove the ignore condition of the specified dependency and ignore
conditions


</details>

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Westend SP dmp queue pallet removal is complete.

<img width="1499" alt="Screenshot 2023-11-28 at 08 31 27"
src="https://github.com/paritytech/polkadot-sdk/assets/16665596/906246fb-3de9-4133-a827-431636a097ad">

<img width="1499" alt="Screenshot 2023-11-28 at 08 32 08"
src="https://github.com/paritytech/polkadot-sdk/assets/16665596/bde84891-b044-42c7-9a0b-59125cd24db1">

<img width="1499" alt="Screenshot 2023-11-28 at 08 31 45"
src="https://github.com/paritytech/polkadot-sdk/assets/16665596/38337484-0856-45c0-b9ff-8c785bc3c0e3">

## Overview

This PR aligns the `spec_version` formatting to the [recent
changes](https://github.com/polkadot-fellows/runtimes/pull/26/files#diff-efa4caeb17487ecb13d8f5eb7863c3241d84afa2e73fbf25909a2ca89df0f362R142)
made for the Polkadot/Kusama runtimes.

It also backports the latest version `v1.4.0` bumps as `1_004_000`.

## Details

During the switch from `v0.9` to `v1.x`, the format of the
`spec_version` was modified from: `(M)m_ppp` for a runtime considered on
version `M.m.pp`. For instance `0.9.42` had a `spec_version` of `9420`.

With the transition to `v1.x`, the format was changed to a bigger number
(still `u32`) formatted as `MM_mm_ppp` where `1.2.3` would be stored as
`01_02_003`.

This PR aligns the format with that has been introduced in the
fellowship repo: `MMM_mmm_ppp`.

---------

Co-authored-by: Bastian Köcher <[email protected]>

This PR fixes two things:
- relax `force_default_xcm_version` for testnet system parachains (e.g.
BridgeHubWestend has now 2 and there is no way to change it to 3, so we
need to call `force_xcm_version(3)` for every parachain that it is
connected to, because we send XCMv3 messages)
- add `Storage` item to `PolkadotXcm` pallet definition (now we cannot
see storage items for `pallet_xcm` in PJS)


## TODO

- [ ] when merged open PR to `polkadot-fellows/runtimes` repo

Missed in https://github.com/paritytech/polkadot-sdk/pull/1672

Fixes https://github.com/paritytech/polkadot-sdk/issues/106

Port of cumulus PR https://github.com/paritytech/cumulus/pull/2960

This PR adds the ability to bid for collator slots even after the max
number of collators have already registered. This eliminates the first
come, first served mechanism that was in place before.

Key changes:
- added `update_bond` extrinsic to allow registered candidates to adjust
their bonds in order to dynamically control their bids
- added `take_candidate_slot` extrinsic to try to replace an already
existing candidate by bidding more than them
- candidates are now kept in a sorted list in the pallet storage, where
the top `DesiredCandidates` out of `MaxCandidates` candidates in the
list will be selected by the session pallet as collators
- if the candidacy bond is increased through a `set_candidacy_bond`
call, candidates which don't meet the new bond requirements are kicked


# Checklist

- [ ] My PR includes a detailed description as outlined in the
"Description" section above
- [ ] My PR follows the [labeling
requirements](https://github.com/paritytech/polkadot-sdk/blob/master/docs/CONTRIBUTING.md#process)
of this project (at minimum one label for `T` required)
- [ ] I have made corresponding changes to the documentation (if
applicable)
- [ ] I have added tests that prove my fix is effective or that my
feature works (if applicable)
- [ ] If this PR alters any external APIs or interfaces used by
Polkadot, the corresponding Polkadot PR is ready as well as the
corresponding Cumulus PR (optional)

---------

Signed-off-by: georgepisaltu <[email protected]>

## Motivation

`pallet-xcm` is the main user-facing interface for XCM functionality,
including assets manipulation functions like `teleportAssets()` and
`reserve_transfer_assets()` calls.

While `teleportAsset()` works both ways, `reserve_transfer_assets()`
works only for sending reserve-based assets to a remote destination and
beneficiary when the reserve is the _local chain_.

## Solution

This PR enhances `pallet_xcm::(limited_)reserve_withdraw_assets` to
support transfers when reserves are other chains.
This will allow complete, **bi-directional** reserve-based asset
transfers user stories using `pallet-xcm`.

Enables following scenarios:
- transferring assets with local reserve (was previously supported iff
asset used as fee also had local reserve - now it works in all cases),
- transferring assets with reserve on destination,
- transferring assets with reserve on remote/third-party chain (iff
assets and fees have same remote reserve),
- transferring assets with reserve different than the reserve of the
asset to be used as fees - meaning can be used to transfer random asset
with local/dest reserve while using DOT for fees on all involved chains,
even if DOT local/dest reserve doesn't match asset reserve,
- transferring assets with any type of local/dest reserve while using
fees which can be teleported between involved chains.

All of the above is done by pallet inner logic without the user having
to specify which scenario/reserves/teleports/etc. The correct scenario
and corresponding XCM programs are identified, and respectively, built
automatically based on runtime configuration of trusted teleporters and
trusted reserves.

#### Current limitations:
- while `fees` and "non-fee" `assets` CAN have different reserves (or
fees CAN be teleported), the remaining "non-fee" `assets` CANNOT, among
themselves, have different reserve locations (this is also implicitly
enforced by `MAX_ASSETS_FOR_TRANSFER=2`, but this can be safely
increased in the future).
- `fees` and "non-fee" `assets` CANNOT have **different remote**
reserves (this could also be supported in the future, but adds even more
complexity while possibly not being worth it - we'll see what the future
holds).

Fixes https://github.com/paritytech/polkadot-sdk/issues/1584
Fixes https://github.com/paritytech/polkadot-sdk/issues/2055

---------

Co-authored-by: Francisco Aguirre <[email protected]>
Co-authored-by: Branislav Kontur <[email protected]>

We are introducing a new set of `XcmController` traits (final name yet
to be determined).
These traits are implemented by `pallet-xcm` and allows other pallets,
such as `pallet_contracts`, to rely on these traits instead of tight
coupling them to `pallet-xcm`.

Using only the existing Xcm traits would mean duplicating the logic from
`pallet-xcm` in these other pallets, which we aim to avoid. Our
objective is to ensure that when these APIs are called from
`pallet-contracts`, they produce the exact same outcomes as if called
directly from `pallet-xcm`.

The other benefits is that we can also expose return values to
`pallet-contracts` instead of just calling `pallet-xcm` dispatchable and
getting a `DispatchResult` back.

See traits integration in this PR
https://github.com/paritytech/polkadot-sdk/pull/1248, where the traits
are used as follow to define and implement `pallet-contracts` Config.
```rs
// Contracts config:
pub trait Config: frame_system::Config {
  // ...

  /// A type that exposes XCM APIs, allowing contracts to interact with other parachains, and
  /// execute XCM programs.
  type Xcm: xcm_executor::traits::Controller<
	  OriginFor<Self>,
	  <Self as frame_system::Config>::RuntimeCall,
	  BlockNumberFor<Self>,
  >;
}

// implementation
impl pallet_contracts::Config for Runtime {
        // ...

	type Xcm = pallet_xcm::Pallet<Self>;
}
```

---------

Co-authored-by: Alexander Theißen <[email protected]>
Co-authored-by: command-bot <>

This PR changes the registration order of the `MessageQueue` pallet so
that it is registered last.

This is necessary so that the
[on_initialize](https://github.com/Snowfork/snowbridge/blob/df8d5da8/parachain/pallets/outbound-queue/src/lib.rs#L267)
hooks for Snowbridge can run before `MessageQueue` delivers messages
using its own `on_initialize`.

Generally, I think this is preferable regardless of Snowbridge's
particular requirements. Other pallets may want to do housekeeping
before MessageQueue starts delivering messages.

I'm hoping this PR, if accepted, can be included in the same release as
https://github.com/paritytech/polkadot-sdk/pull/1246. As otherwise,
changing the order of pallet registration is an ABI-breaking change.

Otherwise the return code is not correctly propagated (ref
https://github.com/ggwpez/zepter/pull/48).

---------

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

Right now governance could only control byte-fee component of Rococo <>
Westend message fees (paid at Asset Hubs). This PR changes it a bit:
1) governance now allowed to control both fee components - byte fee and
base fee;
2) base fee now includes cost of "default" delivery and confirmation
transactions, in addition to `ExportMessage` instruction cost.

(imported from https://github.com/paritytech/cumulus/pull/2157)

## Changes

This MR refactores the XCMP, Parachains System and DMP pallets to use
the [MessageQueue](https://github.com/paritytech/substrate/pull/12485)
for delayed execution of incoming messages. The DMP pallet is entirely
replaced by the MQ and thereby removed. This allows for PoV-bounded
execution and resolves a number of issues that stem from the current
work-around.

All System Parachains adopt this change.  
The most important changes are in `primitives/core/src/lib.rs`,
`parachains/common/src/process_xcm_message.rs`,
`pallets/parachain-system/src/lib.rs`, `pallets/xcmp-queue/src/lib.rs`
and the runtime configs.

### DMP Queue Pallet

The pallet got removed and its logic refactored into parachain-system.
Overweight message management can be done directly through the MQ
pallet.

Final undeployment migrations are provided by
`cumulus_pallet_dmp_queue::UndeployDmpQueue` and `DeleteDmpQueue` that
can be configured with an aux config trait like:

```rust
parameter_types! {
	pub const DmpQueuePalletName: &'static str = \"DmpQueue\" < CHANGE ME;
	pub const RelayOrigin: AggregateMessageOrigin = AggregateMessageOrigin::Parent;
}

impl cumulus_pallet_dmp_queue::MigrationConfig for Runtime {
	type PalletName = DmpQueuePalletName;
	type DmpHandler = frame_support::traits::EnqueueWithOrigin<MessageQueue, RelayOrigin>;
	type DbWeight = <Runtime as frame_system::Config>::DbWeight;
}

// And adding them to your Migrations tuple:
pub type Migrations = (
	...
	cumulus_pallet_dmp_queue::UndeployDmpQueue<Runtime>,
	cumulus_pallet_dmp_queue::DeleteDmpQueue<Runtime>,
);
```

### XCMP Queue pallet

Removed all dispatch queue functionality. Incoming XCMP messages are now
either: Immediately handled if they are Signals, enqueued into the MQ
pallet otherwise.

New config items for the XCMP queue pallet:
```rust
/// The actual queue implementation that retains the messages for later processing.
type XcmpQueue: EnqueueMessage<ParaId>;

/// How a XCM over HRMP from a sibling parachain should be processed.
type XcmpProcessor: ProcessMessage<Origin = ParaId>;

/// The maximal number of suspended XCMP channels at the same time.
#[pallet::constant]
type MaxInboundSuspended: Get<u32>;
```

How to configure those:

```rust
// Use the MessageQueue pallet to store messages for later processing. The `TransformOrigin` is needed since
// the MQ pallet itself operators on `AggregateMessageOrigin` but we want to enqueue `ParaId`s.
type XcmpQueue = TransformOrigin<MessageQueue, AggregateMessageOrigin, ParaId, ParaIdToSibling>;

// Process XCMP messages from siblings. This is type-safe to only accept `ParaId`s. They will be dispatched
// with origin `Junction::Sibling(…)`.
type XcmpProcessor = ProcessFromSibling<
	ProcessXcmMessage<
		AggregateMessageOrigin,
		xcm_executor::XcmExecutor<xcm_config::XcmConfig>,
		RuntimeCall,
	>,
>;

// Not really important what to choose here. Just something larger than the maximal number of channels.
type MaxInboundSuspended = sp_core::ConstU32<1_000>;
```

The `InboundXcmpStatus` storage item was replaced by
`InboundXcmpSuspended` since it now only tracks inbound queue suspension
and no message indices anymore.

Now only sends the most recent channel `Signals`, as all prio ones are
out-dated anyway.

### Parachain System pallet

For `DMP` messages instead of forwarding them to the `DMP` pallet, it
now pushes them to the configured `DmpQueue`. The message processing
which was triggered in `set_validation_data` is now being done by the MQ
pallet `on_initialize`.

XCMP messages are still handed off to the `XcmpMessageHandler`
(XCMP-Queue pallet) - no change here.

New config items for the parachain system pallet:
```rust
/// Queues inbound downward messages for delayed processing. 
///
/// Analogous to the `XcmpQueue` of the XCMP queue pallet.
type DmpQueue: EnqueueMessage<AggregateMessageOrigin>;
``` 

How to configure:
```rust
/// Use the MQ pallet to store DMP messages for delayed processing.
type DmpQueue = MessageQueue;
``` 

## Message Flow

The flow of messages on the parachain side. Messages come in from the
left via the `Validation Data` and finally end up at the `Xcm Executor`
on the right.

![Untitled
(1)](https://github.com/paritytech/cumulus/assets/10380170/6cf8b377-88c9-4aed-96df-baace266e04d)

## Further changes

- Bumped the default suspension, drop and resume thresholds in
`QueueConfigData::default()`.
- `XcmpQueue::{suspend_xcm_execution, resume_xcm_execution}` errors when
they would be a noop.
- Properly validate the `QueueConfigData` before setting it.
- Marked weight files as auto-generated so they wont auto-expand in the
MR files view.
- Move the `hypothetical` asserts to `frame_support` under the name
`experimental_hypothetically`

Questions:
- [ ] What about the ugly `#[cfg(feature = \"runtime-benchmarks\")]` in
the runtimes? Not sure how to best fix. Just having them like this makes
tests fail that rely on the real message processor when the feature is
enabled.
- [ ] Need a good weight for `MessageQueueServiceWeight`. The scheduler
already takes 80% so I put it to 10% but that is quite low.

TODO:
- [x] Remove c&p code after
https://github.com/paritytech/polkadot/pull/6271
- [x] Use `HandleMessage` once it is public in Substrate
- [x] fix `runtime-benchmarks` feature
https://github.com/paritytech/polkadot/pull/6966
- [x] Benchmarks
- [x] Tests
- [ ] Migrate `InboundXcmpStatus` to `InboundXcmpSuspended`
- [x] Possibly cleanup Migrations (DMP+XCMP)
- [x] optional: create `TransformProcessMessageOrigin` in Substrate and
replace `ProcessFromSibling`
- [ ] Rerun weights on ref HW

---------

Signed-off-by: Oliver Tale-Yazdi <[email protected]>
Co-authored-by: Liam Aharon <[email protected]>
Co-authored-by: joe petrowski <[email protected]>
Co-authored-by: Kian Paimani <[email protected]>
Co-authored-by: command-bot <>