# Description
- Link to issue: https://github.com/paritytech/polkadot-sdk/issues/3651

polkadot address: 19nSqFQorfF2HxD3oBzWM3oCh4SaCRKWt1yvmgaPYGCo71J

This PR introduces changes enabling the transfer of coretime regions via
XCM.

TL;DR: There are two primary issues that are resolved in this PR:

1. The `mint` and `burn` functions were not implemented for coretime
regions. These operations are essential for moving assets to and from
the XCM holding register.
2. The transfer of non-fungible assets through XCM was previously
disallowed. This was due to incorrectly benchmarking non-fungible asset
transfers via XCM, which led to assigning it a weight of `Weight::Max`,
effectively preventing its execution.

### `mint_into` and `burn` implementation

This PR addresses the issue with cross-chain transferring regions back
to the Coretime chain. Remote reserve transfers are performed by
withdrawing and depositing the asset to and from the holding registry.
This requires the asset to support burning and minting functionality.

This PR adds burning and minting; however, they work a bit differently
than usual so that the associated region record is not lost when
burning. Instead of removing all the data, burning will set the owner of
the region to `None`, and when minting it back, it will set it to an
actual value. So, when cross-chain transferring, withdrawing into the
registry will remove the region from its original owner, and when
depositing it from the registry, it will set its owner to another
account

This was originally implemented in this PR: #3455, however we decided to
move all of it to this single PR
(https://github.com/paritytech/polkadot-sdk/pull/3455#discussion_r1547324892)

### Fixes made in this PR

- Update the `XcmReserveTransferFilter` on coretime chain since it is
meant as a reserve chain for coretime regions.
- Update the XCM benchmark to use `AssetTransactor` instead of assuming
`pallet-balances` for fungible transfers.
- Update the XCM benchmark to properly measure weight consumption for
nonfungible reserve asset transfers. ATM reserve transfers via the
extrinsic do not work since the weight for it is set to `Weight::max()`.

Closes: https://github.com/paritytech/polkadot-sdk/issues/865

---------

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

# Description

Add `transfer_assets_using()` for transferring assets from local chain
to destination chain using explicit XCM transfer types such as:
- `TransferType::LocalReserve`: transfer assets to sovereign account of
destination chain and forward a notification XCM to `dest` to mint and
deposit reserve-based assets to `beneficiary`.
- `TransferType::DestinationReserve`: 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`.
- `TransferType::RemoteReserve(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`. Typically the remote `reserve` is
Asset Hub.
- `TransferType::Teleport`: burn local assets and forward XCM to `dest`
chain to mint/teleport assets and deposit them to `beneficiary`.

By default, an asset's reserve is its origin chain. But sometimes we may
want to explicitly use another chain as reserve (as long as allowed by
runtime `IsReserve` filter).

This is very helpful for transferring assets with multiple configured
reserves (such as Asset Hub ForeignAssets), when the transfer strictly
depends on the used reserve.

E.g. For transferring Foreign Assets over a bridge, Asset Hub must be
used as the reserve location.

# Example usage scenarios

## Transfer bridged ethereum ERC20-tokenX between ecosystem parachains.

ERC20-tokenX is registered on AssetHub as a ForeignAsset by the
Polkadot<>Ethereum bridge (Snowbridge). Its asset_id is something like
`(parents:2, (GlobalConsensus(Ethereum), Address(tokenX_contract)))`.
Its _original_ reserve is Ethereum (only we can't use Ethereum as a
reserve in local transfers); but, since tokenX is also registered on
AssetHub as a ForeignAsset, we can use AssetHub as a reserve.

With this PR we can transfer tokenX from ParaA to ParaB while using
AssetHub as a reserve.

## Transfer AssetHub ForeignAssets between parachains

AssetA created on ParaA but also registered as foreign asset on Asset
Hub. Can use AssetHub as a reserve.

And all of the above can be done while still controlling transfer type
for `fees` so mixing assets in same transfer is supported.

# Tests

Added integration tests for showcasing:
- transferring local (not bridged) assets from parachain over bridge
using local Asset Hub reserve,
- transferring foreign assets from parachain to Asset Hub,
- transferring foreign assets from Asset Hub to parachain,
- transferring foreign assets from parachain to parachain using local
Asset Hub reserve.

---------

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

The XCM builder pattern lets you build xcms like so:

```rust
let xcm = Xcm::builder()
    .withdraw_asset((Parent, 100u128).into())
    .buy_execution((Parent, 1u128).into())
    .deposit_asset(All.into(), AccountId32 { id: [0u8; 32], network: None }.into())
    .build();
```

All the `.into()` become quite annoying to have to write.
I accepted `impl Into<T>` instead of `T` in the generated methods from
the macro.
Now the previous example can be simplified as follows:

```rust
let xcm = Xcm::builder()
    .withdraw_asset((Parent, 100u128))
    .buy_execution((Parent, 1u128))
    .deposit_asset(All, [0u8; 32])
    .build();
```

---------

Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: command-bot <>
Co-authored-by: Adrian Catangiu <[email protected]>

migrations: prevent accidentally using unversioned migrations instead of `VersionedMigration` (#3835)

closes #1324 

#### Problem
Currently, it is possible to accidentally use inner unversioned
migration instead of `VersionedMigration` since both implement
`OnRuntimeUpgrade`.

#### Solution

With this change, we make it clear that value of `Inner` is not intended
to be used directly. It is achieved by bounding `Inner` to new trait
`UncheckedOnRuntimeUpgrade`, which has the same interface (except
`unchecked_` prefix) as `OnRuntimeUpgrade`.

#### `try-runtime` functions

Since developers can implement `try-runtime` for `Inner` value in
`VersionedMigration` and have custom logic for it, I added the same
`try-runtime` functions to `UncheckedOnRuntimeUpgrade`. I looked for a
ways to not duplicate functions, but couldn't find anything that doesn't
significantly change the codebase. So I would appreciate If you have any
suggestions to improve this

cc @liamaharon

 @xlc 

polkadot address: 16FqwPZ8GRC5U5D4Fu7W33nA55ZXzXGWHwmbnE1eT6pxuqcT

---------

Co-authored-by: Liam Aharon <[email protected]>

Working towards migrating the `parity-bridges-common` repo inside
`polkadot-sdk`. This PR upgrades some dependencies in order to align
them with the versions used in `parity-bridges-common`

Related to
https://github.com/paritytech/parity-bridges-common/issues/2538

Fix "double-weights" for extrinsics, use only the ones benchmarked in
the runtime.

Deprecate extrinsics that don't specify WeightLimit, remove their usage
across the repo.

---------

Signed-off-by: Adrian Catangiu <[email protected]>
Co-authored-by: command-bot <>

`execute` and `send` try to decode the xcm in the parameters before
reaching the filter line.
The new extrinsics decode only after the filter line.
These should be used instead of the old ones.

## TODO
- [x] Tests
- [x] Generate weights
- [x] Deprecation issue ->
https://github.com/paritytech/polkadot-sdk/issues/3771
- [x] PRDoc
- [x] Handle error in pallet-contracts

This would make writing XCMs in PJS Apps more difficult, but here's the
fix for that: https://github.com/polkadot-js/apps/pull/10350.
Already deployed! https://polkadot.js.org/apps/#/utilities/xcm

Supersedes https://github.com/paritytech/polkadot-sdk/pull/1798/

---------

Co-authored-by: PG Herveou <[email protected]>
Co-authored-by: command-bot <>
Co-authored-by: Adrian Catangiu <[email protected]>

The PR provides API for obtaining:
- the weight required to execute an XCM message,
- a list of acceptable `AssetId`s for message execution payment,
- the cost of the weight in the specified acceptable `AssetId`.

It is meant to address an issue where one has to guess how much fee to
pay for execution. Also, at the moment, a client has to guess which
assets are acceptable for fee execution payment.
See the related issue
https://github.com/paritytech/polkadot-sdk/issues/690.
With this API, a client is supposed to query the list of the supported
asset IDs (in the XCM version format the client understands), weigh the
XCM program the client wants to execute and convert the weight into one
of the acceptable assets. Note that the client is supposed to know what
program will be executed on what chains. However, having a small
companion JS library for the pallet-xcm and xtokens should be enough to
determine what XCM programs will be executed and where (since these
pallets compose a known small set of programs).
```Rust
pub trait XcmPaymentApi<Call>
	where
		Call: Codec,
	{
		/// Returns a list of acceptable payment assets.
		///
		/// # Arguments
		///
		/// * `xcm_version`: Version.
		fn query_acceptable_payment_assets(xcm_version: Version) -> Result<Vec<VersionedAssetId>, Error>;
		/// Returns a weight needed to execute a XCM.
		///
		/// # Arguments
		///
		/// * `message`: `VersionedXcm`.
		fn query_xcm_weight(message: VersionedXcm<Call>) -> Result<Weight, Error>;
		/// Converts a weight into a fee for the specified `AssetId`.
		///
		/// # Arguments
		///
		/// * `weight`: convertible `Weight`.
		/// * `asset`: `VersionedAssetId`.
		fn query_weight_to_asset_fee(weight: Weight, asset: VersionedAssetId) -> Result<u128, Error>;
		/// Get delivery fees for sending a specific `message` to a `destination`.
		/// These always come in a specific asset, defined by the chain.
		///
		/// # Arguments
		/// * `message`: The message that'll be sent, necessary because most delivery fees are based on the
		///   size of the message.
		/// * `destination`: The destination to send the message to. Different destinations may use
		///   different senders that charge different fees.
		fn query_delivery_fees(destination: VersionedLocation, message: VersionedXcm<()>) -> Result<VersionedAssets, Error>;
	}
```
An
[example](https://gist.github.com/PraetorP/4bc323ff85401abe253897ba990ec29d)
of a client side code.

---------

Co-authored-by: Francisco Aguirre <[email protected]>
Co-authored-by: Adrian Catangiu <[email protected]>
Co-authored-by: Daniel Shiposha <[email protected]>

**Update:** Pushed additional changes based on the review comments.

**This pull request fixes various spelling mistakes in this
repository.**

Most of the changes are contained in the first **3** commits:

- `Fix spelling mistakes in comments and docs`

- `Fix spelling mistakes in test names`

- `Fix spelling mistakes in error messages, panic messages, logs and
tracing`

Other source code spelling mistakes are separated into individual
commits for easier reviewing:

- `Fix the spelling of 'authority'`

- `Fix the spelling of 'REASONABLE_HEADERS_IN_JUSTIFICATION_ANCESTRY'`

- `Fix the spelling of 'prev_enqueud_messages'`

- `Fix the spelling of 'endpoint'`

- `Fix the spelling of 'children'`

- `Fix the spelling of 'PenpalSiblingSovereignAccount'`

- `Fix the spelling of 'PenpalSudoAccount'`

- `Fix the spelling of 'insufficient'`

- `Fix the spelling of 'PalletXcmExtrinsicsBenchmark'`

- `Fix the spelling of 'subtracted'`

- `Fix the spelling of 'CandidatePendingAvailability'`

- `Fix the spelling of 'exclusive'`

- `Fix the spelling of 'until'`

- `Fix the spelling of 'discriminator'`

- `Fix the spelling of 'nonexistent'`

- `Fix the spelling of 'subsystem'`

- `Fix the spelling of 'indices'`

- `Fix the spelling of 'committed'`

- `Fix the spelling of 'topology'`

- `Fix the spelling of 'response'`

- `Fix the spelling of 'beneficiary'`

- `Fix the spelling of 'formatted'`

- `Fix the spelling of 'UNKNOWN_PROOF_REQUEST'`

- `Fix the spelling of 'succeeded'`

- `Fix the spelling of 'reopened'`

- `Fix the spelling of 'proposer'`

- `Fix the spelling of 'InstantiationNonce'`

- `Fix the spelling of 'depositor'`

- `Fix the spelling of 'expiration'`

- `Fix the spelling of 'phantom'`

- `Fix the spelling of 'AggregatedKeyValue'`

- `Fix the spelling of 'randomness'`

- `Fix the spelling of 'defendant'`

- `Fix the spelling of 'AquaticMammal'`

- `Fix the spelling of 'transactions'`

- `Fix the spelling of 'PassingTracingSubscriber'`

- `Fix the spelling of 'TxSignaturePayload'`

- `Fix the spelling of 'versioning'`

- `Fix the spelling of 'descendant'`

- `Fix the spelling of 'overridden'`

- `Fix the spelling of 'network'`

Let me know if this structure is adequate.

**Note:** The usage of the words `Merkle`, `Merkelize`, `Merklization`,
`Merkelization`, `Merkleization`, is somewhat inconsistent but I left it
as it is.

~~**Note:** In some places the term `Receival` is used to refer to
message reception, IMO `Reception` is the correct word here, but I left
it as it is.~~

~~**Note:** In some places the term `Overlayed` is used instead of the
more acceptable version `Overlaid` but I also left it as it is.~~

~~**Note:** In some places the term `Applyable` is used instead of the
correct version `Applicable` but I also left it as it is.~~

**Note:** Some usage of British vs American english e.g. `judgement` vs
`judgment`, `initialise` vs `initialize`, `optimise` vs `optimize` etc.
are both present in different places, but I suppose that's
understandable given the number of contributors.

~~**Note:** There is a spelling mistake in `.github/CODEOWNERS` but it
triggers errors in CI when I make changes to it, so I left it as it
is.~~

Currently `transfer_assets` from pallet-xcm covers 4 main different
transfer types:
- `localReserve`
- `DestinationReserve`
- `Teleport`
- `RemoteReserve`

For the first three, the local execution and the remote message sending
are separated, and fees are deducted in pallet-xcm itself:
https://github.com/paritytech/polkadot-sdk/blob/3410dfb3

/polkadot/xcm/pallet-xcm/src/lib.rs#L1758.

For the 4th case `RemoteReserve`, pallet-xcm is still relying on the
xcm-executor itself to send the message (through the
`initiateReserveWithdraw` instruction). In this case, if delivery fees
need to be charged, it is not possible to do so because the
`jit_withdraw` mode has not being set.

This PR proposes to still use the `initiateReserveWithdraw` but
prepending a `setFeesMode { jit_withdraw: true }` to make sure delivery
fees can be paid.

A test-case is also added to present the aforementioned case

---------

Co-authored-by: Adrian Catangiu <[email protected]>

We do not need to make these traits generic over QueryId type, we can
just use the QueryId alias everywhere

Currently the xcm-executor returns an `Unimplemented` error if it
receives any HRMP-related instruction.
What I propose here, which is what we are currently doing in our forked
executor at polimec, is to introduce a trait implemented by the executor
which will handle those instructions.

This way, if parachains want to keep the default behavior, they just use
`()` and it will return unimplemented, but they can also implement their
own logic to establish HRMP channels with other chains in an automated
fashion, without requiring to go through governance.

Our implementation is mentioned in the [polkadot HRMP
docs](https://arc.net/l/quote/hduiivbu), and it was suggested to us to
submit a PR to add these changes to polkadot-sdk.

---------

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

Step in https://github.com/paritytech/polkadot-sdk/issues/171

This PR removes `as [disambiguation_path]` syntax from `derive_impl`
usage across the polkadot-sdk as introduced in
https://github.com/paritytech/polkadot-sdk/pull/3505

If an XCM execution fails or ends with leftover assets, these will be
trapped.
In order to claim them, a custom XCM has to be executed, with the
`ClaimAsset` instruction.
However, arbitrary XCM execution is not allowed everywhere yet and XCM
itself is still not easy enough to use for users out there with trapped
assets.
This new extrinsic in `pallet-xcm` will allow these users to easily
claim their assets, without concerning themselves with writing arbitrary
XCMs.

Part of fixing https://github.com/paritytech/polkadot-sdk/issues/3495

---------

Co-authored-by: command-bot <>
Co-authored-by: Adrian Catangiu <[email protected]>

## Problem
During the bumping of the `polkadot-fellows` repository to
`[email protected]`, I encountered a situation where the benchmarks
`teleport_assets` and `reserve_transfer_assets` in AssetHubKusama
started to fail. This issue arose due to a decreased ED balance for
AssetHubs introduced
[here](https://github.com/polkadot-fellows/runtimes/pull/158/files#diff-80668ff8e793b64f36a9a3ec512df5cbca4ad448c157a5d81abda1b15f35f1daR213),
and also because of a [missing CI
pipeline](https://github.com/polkadot-fellows/runtimes/issues/197) to
check the benchmarks, which went unnoticed.

These benchmarks expect the `caller` to have enough:
1. balance to transfer (BTT)
2. balance for paying delivery (BFPD).
 
So the initial balance was calculated as `ED * 100`, which seems
reasonable:
```
const ED_MULTIPLIER: u32 = 100;
let balance = existential_deposit.saturating_mul(ED_MULTIPLIER.into());`
```
The problem arises when the price for delivery is 100 times higher than
the existential deposit. In other words, when `ED * 100` does not cover
`BTT` + `BFPD`.

I check AHR/AHW/AHK/AHP and this problem has only AssetHubKusama
```
ED: 3333333
calculated price to parent delivery:  1031666634  (from xcm logs from the benchmark)
---

3333333 * 100 - BTT(3333333) - BFPD(1031666634) = −701666667
```
which results in the error;
```
2024-02-23 09:19:42 Unable to charge fee with error Module(ModuleError { index: 31, error: [17, 0, 0, 0], message: Some("FeesNotMet") })
Error: Input("Benchmark pallet_xcm::reserve_transfer_assets failed: FeesNotMet")
     
```

## Solution

The benchmarks `teleport_assets` and `reserve_transfer_assets` were
fixed by removing `ED * 100` and replacing it with `DeliveryHelper`
logic, which calculates the (almost real) price for delivery and sets it
along with the existential deposit as the initial balance for the
account used in the benchmark.


## TODO

- [ ] patch for 1.6 -
https://github.com/paritytech/polkadot-sdk/pull/3466
- [ ] patch for 1.7 -
https://github.com/paritytech/polkadot-sdk/pull/3465
- [ ] patch for 1.8 - TODO: PR

---------

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

Lifting some more dependencies to the workspace. Just using the
most-often updated ones for now.
It can be reproduced locally.

```sh
# First you can check if there would be semver incompatible bumps (looks good in this case):
$ zepter transpose dependency lift-to-workspace --ignore-errors syn quote thiserror "regex:^serde.*"

# Then apply the changes:
$ zepter transpose dependency lift-to-workspace --version-resolver=highest syn quote thiserror "regex:^serde.*" --fix

# And format the changes:
$ taplo format --config .config/taplo.toml
```

---------

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

## Xcm changes:
- Fix `pallet_xcm::execute`, move the logic into The `ExecuteController`
so it can be shared with anything that implement that trait.
- Make `ExecuteController::execute` retursn `DispatchErrorWithPostInfo`
instead of `DispatchError`, so that we don't charge the full
`max_weight` provided if the execution is incomplete (useful for
force_batch or contracts calls)
- Fix docstring for `pallet_xcm::execute`, to reflect the changes from
#2405
- Update the signature for `ExecuteController::execute`, we don't need
to return the `Outcome` anymore since we only care about
`Outcome::Complete`

## Contracts changes:

- Update host fn `xcm_exexute`, we don't need to write the `Outcome` to
the sandbox memory anymore. This was also not charged as well before so
it if fixes this too.
- One of the issue was that the dry_run of a contract that call
`xcm_execute` would exhaust the `gas_limit`.

This is because `XcmExecuteController::execute` takes a `max_weight`
argument, and since we don't want the user to specify it manually we
were passing everything left by pre-charghing
`ctx.ext.gas_meter().gas_left()`

- To fix it I added a `fn influence_lowest_limit` on the `Token` trait
and make it return false for `RuntimeCost::XcmExecute`.
- Got rid of the `RuntimeToken` indirection, we can just use
`RuntimeCost` directly.

---------

Co-authored-by: command-bot <>

Bumps the known_good_semver group with 6 updates:

| Package | From | To |
| --- | --- | --- |
| [serde](https://github.com/serde-rs/serde) | `1.0.195` | `1.0.196` |
| [serde_json](https://github.com/serde-rs/json) | `1.0.111` | `1.0.113`
|
| [clap](https://github.com/clap-rs/clap) | `4.4.18` | `4.5.0` |
| [syn](https://github.com/dtolnay/syn) | `2.0.48` | `2.0.49` |
| [serde_yaml](https://github.com/dtolnay/serde-yaml) | `0.9.30` |
`0.9.31` |
| [serde_derive](https://github.com/serde-rs/serde) | `1.0.195` |
`1.0.196` |

Updates `serde` from 1.0.195 to 1.0.196
<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>v1.0.196</h2>
<ul>
<li>Improve formatting of &quot;invalid type&quot; error messages
involving floats (<a
href="https://redirect.github.com/serde-rs/serde/issues/2682">#2682</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/serde-rs/serde/commit/ede9762a583c3cc3b87c10a53551828fad339525"><code>ede9762</code></a>
Release 1.0.196</li>
<li><a
href="https://github.com/serde-rs/serde/commit/d438c2d67bf30e3edab31c2272c4829c12cf4cb5"><code>d438c2d</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2682">#2682</a>
from dtolnay/decimalpoint</li>
<li><a
href="https://github.com/serde-rs/serde/commit/bef110b92a171ac568a47339f5bd97938a8c9da2"><code>bef110b</code></a>
Format Unexpected::Float with decimal point</li>
<li><a
href="https://github.com/serde-rs/serde/commit/b971ef11d1b53da7673e0c8199e87509c003c1a8"><code>b971ef1</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2681">#2681</a>
from dtolnay/workspacedeps</li>
<li><a
href="https://github.com/serde-rs/serde/commit/29d9f693996d199748136d5561a971ed68626724"><code>29d9f69</code></a>
Fix workspace.dependencies default-features future compat warning</li>
<li><a
href="https://github.com/serde-rs/serde/commit/aecb4083bde754155752f5d7d442b64eb7dc636f"><code>aecb408</code></a>
Sort workspace dependencies</li>
<li><a
href="https://github.com/serde-rs/serde/commit/1c675ab3a38e46df4e62465800970f8b20a2055d"><code>1c675ab</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2678">#2678</a>
from rodoufu/workspaceDependencies</li>
<li><a
href="https://github.com/serde-rs/serde/commit/dd619630a337139424725697ccd9a9f7596a2d3a"><code>dd61963</code></a>
Adding workspace dependencies</li>
<li><a
href="https://github.com/serde-rs/serde/commit/111803ab0768d010c606f2fc0d0add12750d5eef"><code>111803a</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2673">#2673</a>
from Sky9x/msrv-badge</li>
<li><a
href="https://github.com/serde-rs/serde/commit/0024f74f34fbbdc44a7b22457faebe36c5cbe7f8"><code>0024f74</code></a>
Use shields.io's MSRV badges</li>
<li>See full diff in <a
href="https://github.com/serde-rs/serde/compare/v1.0.195...v1.0.196">compare
view</a></li>
</ul>
</details>
<br />

Updates `serde_json` from 1.0.111 to 1.0.113
<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>v1.0.113</h2>
<ul>
<li>Add <code>swap_remove</code> and <code>shift_remove</code> methods
on Map (<a
href="https://redirect.github.com/serde-rs/json/issues/1109">#1109</a>)</li>
</ul>
<h2>v1.0.112</h2>
<ul>
<li>Improve formatting of &quot;invalid type&quot; error messages
involving floats (<a
href="https://redirect.github.com/serde-rs/json/issues/1107">#1107</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/serde-rs/json/commit/09d865b34b9701be52764dc9bf571b1a16e9d3dc"><code>09d865b</code></a>
Release 1.0.113</li>
<li><a
href="https://github.com/serde-rs/json/commit/5aeab4eaf69d7959f013f8081865c264d6c00551"><code>5aeab4e</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1109">#1109</a>
from serde-rs/remove</li>
<li><a
href="https://github.com/serde-rs/json/commit/ca3c2ca3696cab79b8b279be7569ee1647250f1e"><code>ca3c2ca</code></a>
Add swap_remove and shift_remove methods on Map</li>
<li><a
href="https://github.com/serde-rs/json/commit/7fece969e3b480ec620419d65c2aeb08776bebcb"><code>7fece96</code></a>
Release 1.0.112</li>
<li><a
href="https://github.com/serde-rs/json/commit/6a6d2bbd9e8b8bd72573b863f12a4ec991f33232"><code>6a6d2bb</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1107">#1107</a>
from serde-rs/unexpectedfloat</li>
<li><a
href="https://github.com/serde-rs/json/commit/83d7bad54ba5db3a44198d6df0ff2e81621683fa"><code>83d7bad</code></a>
Format f64 in error messages using ryu</li>
<li><a
href="https://github.com/serde-rs/json/commit/107c2d1c42817f0d71f07a4d5b0ea2f29dbce8b8"><code>107c2d1</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1106">#1106</a>
from serde-rs/invalidvalue</li>
<li><a
href="https://github.com/serde-rs/json/commit/62ca3e4c01c2e62cd5c2a32e9104f386e5ce7808"><code>62ca3e4</code></a>
Handle Unexpected::Unit in Error::invalid_value</li>
<li><a
href="https://github.com/serde-rs/json/commit/296fafb8f32e8442ef8e4d5725c15ffca726b288"><code>296fafb</code></a>
Factor out JSON-specific Display impl for serde::de::Unexpected</li>
<li><a
href="https://github.com/serde-rs/json/commit/e56cc696bd7c112e5dd4ccfa23d094c3a1c1c1ff"><code>e56cc69</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/json/issues/1105">#1105</a>
from keienWang/master</li>
<li>Additional commits viewable in <a
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</ul>
</details>
<br />

Updates `clap` from 4.4.18 to 4.5.0
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a
href="https://github.com/clap-rs/clap/blob/master/CHANGELOG.md">clap's
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<blockquote>
<h2>[4.5.0] - 2024-02-08</h2>
<h3>Compatibility</h3>
<ul>
<li>Update MSRV to 1.74</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/clap-rs/clap/commit/a751c5fe65cd33cb09e85ff3039b4fd0182cdb6e"><code>a751c5f</code></a>
chore: Release</li>
<li><a
href="https://github.com/clap-rs/clap/commit/9ec6c942b81c370a8c14652e42295933244555ac"><code>9ec6c94</code></a>
chore: Release</li>
<li><a
href="https://github.com/clap-rs/clap/commit/0735119775c2d27fef6b3c232cb9ef2fcbbd963f"><code>0735119</code></a>
docs: Update changelog</li>
<li><a
href="https://github.com/clap-rs/clap/commit/c4d3959506f5068f86ffb7ab34b622bd2da40dd8"><code>c4d3959</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/5344">#5344</a>
from epage/encode</li>
<li><a
href="https://github.com/clap-rs/clap/commit/f750e577789e1dd34c6950d8c8fe16d1bfd1f49c"><code>f750e57</code></a>
fix(lex): Use new-ish OsStr API</li>
<li><a
href="https://github.com/clap-rs/clap/commit/1d9a554cdfddffcb92d197706b9720e2760cb443"><code>1d9a554</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/5343">#5343</a>
from epage/msrv</li>
<li><a
href="https://github.com/clap-rs/clap/commit/4b45d361b1b96eb1f37b7d1db2684203ca828a94"><code>4b45d36</code></a>
chore: Update MSRV to 1.74</li>
<li><a
href="https://github.com/clap-rs/clap/commit/55b1f945157d4d0e480dea6c492e04d0b541088a"><code>55b1f94</code></a>
Merge pull request <a
href="https://redirect.github.com/clap-rs/clap/issues/5342">#5342</a>
from epage/divan</li>
<li><a
href="https://github.com/clap-rs/clap/commit/ea77b98da3f321069ae136a241a2d266c2b28bd7"><code>ea77b98</code></a>
test(complete): Make it order independent</li>
<li><a
href="https://github.com/clap-rs/clap/commit/b0fea2bac60819bdb042e10c032817fded67f815"><code>b0fea2b</code></a>
test(bench): Switch to divan</li>
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Updates `syn` from 2.0.48 to 2.0.49
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a
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<blockquote>
<h2>2.0.49</h2>
<ul>
<li>Improve error location when parsing from an empty string literal
using <code>LitStr::parse</code> (<a
href="https://redirect.github.com/dtolnay/syn/issues/1590">#1590</a>)</li>
</ul>
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<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/dtolnay/syn/commit/e64c0636042bcd8cf56f9e6c3e828a49cb434649"><code>e64c063</code></a>
Release 2.0.49</li>
<li><a
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Merge pull request <a
href="https://redirect.github.com/dtolnay/syn/issues/1590">#1590</a>
from dtolnay/streof</li>
<li><a
href="https://github.com/dtolnay/syn/commit/51298d40a447b9e5b3cd8c898c2ea9d24b31cd6d"><code>51298d4</code></a>
Improve error location at eof in LitStr::parse</li>
<li><a
href="https://github.com/dtolnay/syn/commit/270c63384a9d891f65880a03a5a92f0bf4605bbf"><code>270c633</code></a>
Update test suite to nightly-2024-02-13</li>
<li><a
href="https://github.com/dtolnay/syn/commit/dc9cf16b9b0601d2d393d059c46a8f8e0220cc21"><code>dc9cf16</code></a>
Remove FilterAttrs trait when unused</li>
<li><a
href="https://github.com/dtolnay/syn/commit/7dcfac79eda716fa806d68cc0aa811f3be717dc0"><code>7dcfac7</code></a>
Ignore dead_code warning in test</li>
<li><a
href="https://github.com/dtolnay/syn/commit/98318441089f9a9bb596fc010ed14c3b593d4bda"><code>9831844</code></a>
Update signature of Emitter::emit_diagnostic in nightly-2024-02-07</li>
<li><a
href="https://github.com/dtolnay/syn/commit/9e8033f63da93dfb6a3e698449c6edff5e56727d"><code>9e8033f</code></a>
Update test suite to nightly-2024-02-07</li>
<li><a
href="https://github.com/dtolnay/syn/commit/cb3348cd94be50995054796facdfa055b6e0e9e8"><code>cb3348c</code></a>
Update test suite to nightly-2024-01-23</li>
<li><a
href="https://github.com/dtolnay/syn/commit/15b9dbcd67bc56f3da7d33bbede46f7380fc7164"><code>15b9dbc</code></a>
Update test suite to nightly-2024-01-19</li>
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Updates `serde_yaml` from 0.9.30 to 0.9.31
<details>
<summary>Release notes</summary>
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<blockquote>
<h2>0.9.31</h2>
<ul>
<li>Add <code>swap_remove</code> and <code>shift_remove</code> methods
on Mapping (<a
href="https://redirect.github.com/dtolnay/serde-yaml/issues/408">#408</a>)</li>
</ul>
</blockquote>
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<li><a
href="https://github.com/dtolnay/serde-yaml/commit/2a77483b23897115bdd69af32ae34d593268d555"><code>2a77483</code></a>
Release 0.9.31</li>
<li><a
href="https://github.com/dtolnay/serde-yaml/commit/d8d1a839cf42ef4627c66bebd743f5fecd24e3ed"><code>d8d1a83</code></a>
Merge pull request <a
href="https://redirect.github.com/dtolnay/serde-yaml/issues/408">#408</a>
from dtolnay/remove</li>
<li><a
href="https://github.com/dtolnay/serde-yaml/commit/f8a99a496836ccfa6c547af9136986d13011be98"><code>f8a99a4</code></a>
Add swap_remove and shift_remove methods on Mapping</li>
<li><a
href="https://github.com/dtolnay/serde-yaml/commit/8b26413e3307e39329dc68a96b065058aec38f9a"><code>8b26413</code></a>
Work around dead_code warning in tests</li>
<li>See full diff in <a
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Updates `serde_derive` from 1.0.195 to 1.0.196
<details>
<summary>Release notes</summary>
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href="https://github.com/serde-rs/serde/releases">serde_derive's
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<blockquote>
<h2>v1.0.196</h2>
<ul>
<li>Improve formatting of &quot;invalid type&quot; error messages
involving floats (<a
href="https://redirect.github.com/serde-rs/serde/issues/2682">#2682</a>)</li>
</ul>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/serde-rs/serde/commit/ede9762a583c3cc3b87c10a53551828fad339525"><code>ede9762</code></a>
Release 1.0.196</li>
<li><a
href="https://github.com/serde-rs/serde/commit/d438c2d67bf30e3edab31c2272c4829c12cf4cb5"><code>d438c2d</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2682">#2682</a>
from dtolnay/decimalpoint</li>
<li><a
href="https://github.com/serde-rs/serde/commit/bef110b92a171ac568a47339f5bd97938a8c9da2"><code>bef110b</code></a>
Format Unexpected::Float with decimal point</li>
<li><a
href="https://github.com/serde-rs/serde/commit/b971ef11d1b53da7673e0c8199e87509c003c1a8"><code>b971ef1</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2681">#2681</a>
from dtolnay/workspacedeps</li>
<li><a
href="https://github.com/serde-rs/serde/commit/29d9f693996d199748136d5561a971ed68626724"><code>29d9f69</code></a>
Fix workspace.dependencies default-features future compat warning</li>
<li><a
href="https://github.com/serde-rs/serde/commit/aecb4083bde754155752f5d7d442b64eb7dc636f"><code>aecb408</code></a>
Sort workspace dependencies</li>
<li><a
href="https://github.com/serde-rs/serde/commit/1c675ab3a38e46df4e62465800970f8b20a2055d"><code>1c675ab</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2678">#2678</a>
from rodoufu/workspaceDependencies</li>
<li><a
href="https://github.com/serde-rs/serde/commit/dd619630a337139424725697ccd9a9f7596a2d3a"><code>dd61963</code></a>
Adding workspace dependencies</li>
<li><a
href="https://github.com/serde-rs/serde/commit/111803ab0768d010c606f2fc0d0add12750d5eef"><code>111803a</code></a>
Merge pull request <a
href="https://redirect.github.com/serde-rs/serde/issues/2673">#2673</a>
from Sky9x/msrv-badge</li>
<li><a
href="https://github.com/serde-rs/serde/commit/0024f74f34fbbdc44a7b22457faebe36c5cbe7f8"><code>0024f74</code></a>
Use shields.io's MSRV badges</li>
<li>See full diff in <a
href="https://github.com/serde-rs/serde/compare/v1.0.195...v1.0.196">compare
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I found out during the cleanup of this deprecation message in the
`polkadot-fellows` repository that we deprecated `CurrencyAdapter`
without making the recommended changes.


## TODO
- [ ] fix `polkadot-fellows` bump to 1.6.0
https://github.com/polkadot-fellows/runtimes/pull/159

---------

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

Changes (partial https://github.com/paritytech/polkadot-sdk/issues/994):
- Set log to `0.4.20` everywhere
- Lift `log` to the workspace

Starting with a simpler one after seeing
https://github.com/paritytech/polkadot-sdk/pull/2065 from @jsdw

.
This sets the `default-features` to `false` in the root and then
overwrites that in each create to its original value. This is necessary
since otherwise the `default` features are additive and its impossible
to disable them in the crate again once they are enabled in the
workspace.

I am using a tool to do this, so its mostly a test to see that it works
as expected.

---------

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

Relates to: https://github.com/paritytech/polkadot-sdk/issues/3214

## TODO

- [ ] backport to the `1.7.0` release

Bumps [bounded-collections](https://github.com/paritytech/parity-common)
from 0.1.9 to 0.2.0.
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[frame] `#[pallet::composite_enum]` improved variant count handling + removed `pallet_balances`'s `MaxHolds` config (#2657)

I started this investigation/issue based on @liamaharon

 question
[here](https://github.com/paritytech/polkadot-sdk/pull/1801#discussion_r1410452499).

## Problem

The `pallet_balances` integrity test should correctly detect that the
runtime has correct distinct `HoldReasons` variant count. I assume the
same situation exists for RuntimeFreezeReason.

It is not a critical problem, if we set `MaxHolds` with a sufficiently
large value, everything should be ok. However, in this case, the
integrity_test check becomes less useful.

**Situation for "any" runtime:**
- `HoldReason` enums from different pallets:
```rust
        /// from pallet_nis
        #[pallet::composite_enum]
	pub enum HoldReason {
		NftReceipt,
	}

        /// from pallet_preimage
        #[pallet::composite_enum]
	pub enum HoldReason {
		Preimage,
	}

        // from pallet_state-trie-migration
        #[pallet::composite_enum]
	pub enum HoldReason {
		SlashForContinueMigrate,
		SlashForMigrateCustomTop,
		SlashForMigrateCustomChild,
	}
```

- generated `RuntimeHoldReason` enum looks like:
```rust
pub enum RuntimeHoldReason {

    #[codec(index = 32u8)]
    Preimage(pallet_preimage::HoldReason),

    #[codec(index = 38u8)]
    Nis(pallet_nis::HoldReason),

    #[codec(index = 42u8)]
    StateTrieMigration(pallet_state_trie_migration::HoldReason),
}
```

- composite enum `RuntimeHoldReason` variant count is detected as `3`
- we set `type MaxHolds = ConstU32<3>`
- `pallet_balances::integrity_test` is ok with `3`(at least 3)

However, the real problem can occur in a live runtime where some
functionality might stop working. This is due to a total of 5 distinct
hold reasons (for pallets with multi-instance support, it is even more),
and not all of them can be used because of an incorrect `MaxHolds`,
which is deemed acceptable according to the `integrity_test`:
  ```
  // pseudo-code - if we try to call all of these:

T::Currency::hold(&pallet_nis::HoldReason::NftReceipt.into(),
&nft_owner, deposit)?;
T::Currency::hold(&pallet_preimage::HoldReason::Preimage.into(),
&nft_owner, deposit)?;

T::Currency::hold(&pallet_state_trie_migration::HoldReason::SlashForContinueMigrate.into(),
&nft_owner, deposit)?;

  // With `type MaxHolds = ConstU32<3>` these two will fail

T::Currency::hold(&pallet_state_trie_migration::HoldReason::SlashForMigrateCustomTop.into(),
&nft_owner, deposit)?;

T::Currency::hold(&pallet_state_trie_migration::HoldReason::SlashForMigrateCustomChild.into(),
&nft_owner, deposit)?;
  ```  


## Solutions

A macro `#[pallet::*]` expansion is extended of `VariantCount`
implementation for the `#[pallet::composite_enum]` enum type. This
expansion generates the `VariantCount` implementation for pallets'
`HoldReason`, `FreezeReason`, `LockId`, and `SlashReason`. Enum variants
must be plain enum values without fields to ensure a deterministic
count.

The composite runtime enum, `RuntimeHoldReason` and
`RuntimeFreezeReason`, now sets `VariantCount::VARIANT_COUNT` as the sum
of pallets' enum `VariantCount::VARIANT_COUNT`:
```rust
#[frame_support::pallet(dev_mode)]
mod module_single_instance {

	#[pallet::composite_enum]
	pub enum HoldReason {
		ModuleSingleInstanceReason1,
		ModuleSingleInstanceReason2,
	}
...
}

#[frame_support::pallet(dev_mode)]
mod module_multi_instance {

	#[pallet::composite_enum]
	pub enum HoldReason<I: 'static = ()> {
		ModuleMultiInstanceReason1,
		ModuleMultiInstanceReason2,
		ModuleMultiInstanceReason3,
	}
...
}


impl self::sp_api_hidden_includes_construct_runtime::hidden_include::traits::VariantCount
    for RuntimeHoldReason
{
    const VARIANT_COUNT: u32 = 0
        + module_single_instance::HoldReason::VARIANT_COUNT
        + module_multi_instance::HoldReason::<module_multi_instance::Instance1>::VARIANT_COUNT
        + module_multi_instance::HoldReason::<module_multi_instance::Instance2>::VARIANT_COUNT
        + module_multi_instance::HoldReason::<module_multi_instance::Instance3>::VARIANT_COUNT;
}
```

In addition, `MaxHolds` is removed (as suggested
[here](https://github.com/paritytech/polkadot-sdk/pull/2657#discussion_r1443324573))
from `pallet_balances`, and its `Holds` are now bounded to
`RuntimeHoldReason::VARIANT_COUNT`. Therefore, there is no need to let
the runtime specify `MaxHolds`.


## For reviewers

Relevant changes can be found here:
- `substrate/frame/support/procedural/src/lib.rs` 
-  `substrate/frame/support/procedural/src/pallet/parse/composite.rs`
-  `substrate/frame/support/procedural/src/pallet/expand/composite.rs`
-
`substrate/frame/support/procedural/src/construct_runtime/expand/composite_helper.rs`
-
`substrate/frame/support/procedural/src/construct_runtime/expand/hold_reason.rs`
-
`substrate/frame/support/procedural/src/construct_runtime/expand/freeze_reason.rs`
- `substrate/frame/support/src/traits/misc.rs`

And the rest of the files is just about removed `MaxHolds` from
`pallet_balances`

## Next steps

Do the same for `MaxFreezes`
https://github.com/paritytech/polkadot-sdk/issues/2997.

---------

Co-authored-by: command-bot <>
Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: Dónal Murray <[email protected]>
Co-authored-by: gupnik <[email protected]>

Related https://github.com/paritytech/polkadot-sdk/issues/3032

---

Using https://github.com/liamaharon/cargo-workspace-version-tools/ 

`cargo run -- sync --path ../polkadot-sdk`

---------

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

Moved from: https://github.com/paritytech/polkadot/pull/6951

closes https://github.com/paritytech/polkadot-sdk/issues/490

- [x] update cumulus

--- 
This PR introduces transactional processing of certain xcm instructions.
For the list of instructions checkout
https://github.com/paritytech/polkadot-sdk/issues/490. The transactional
processing is implemented as an xcm-executor config item. The two
implementations in this PR are `FrameTransactionalProcessor` and `()`.
The `()` implementation does no transactional processing. Each
implementation of the `ProcessTransaction` trait has an
`IS_TRANSACTIONAL` const that tells the XCVM if transactional processing
is actually implemented. If Transactional processing is implemented,
changes to touched registers should also be rolled back to prevent
inconsistencies.


Note for reviewers:
Check out the following safety assumption:
https://github.com/paritytech/polkadot-sdk/pull/1222/files#diff-4effad7d8c1c9de19fd27e18661cbf2128c8718f3b2420a27d2f816e0749ea53R30

---------

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

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]>

# 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
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<li><a
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Release 1.0.195</li>
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<li><a
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Revert &quot;Add FIXME to fix dead_code warning when using
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<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
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<li><a
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Add FIXME to fix dead_code warning when using serde(remote)</li>
<li><a
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Work around dead_code warning in tests</li>
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Fill in omitted patterns for GenericArguments match</li>
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Pick up changes to non_exhaustive_omitted_patterns lint</li>
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Updates `serde_json` from 1.0.110 to 1.0.111
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Updates `clap` from 4.4.12 to 4.4.13
<details>
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<blockquote>
<h2>v4.4.13</h2>
<h2>[4.4.13] - 2024-01-04</h2>
<h3>Documentation</h3>
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<h3>Documentation</h3>
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Correct safety docs</li>
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<li><a
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docs: Update changelog</li>
<li><a
href="https://github.com/clap-rs/clap/commit/adbe6ec4cb6a617070c41927a389d0bea7b30936"><code>adbe6ec</code></a>
Merge pull request <a
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<li><a
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Updates `syn` from 2.0.47 to 2.0.48
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<h2>2.0.48</h2>
<ul>
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Fix error message on unexpected token after 'else'</li>
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Merge pull request <a
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Pick up changes to non_exhaustive_omitted_patterns lint</li>
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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
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Updates `serde` from 1.0.193 to 1.0.194
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Restore doc cfg on re-exports</li>
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<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 />


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

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]>

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 <>

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]>

## 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 <>

For some reason original PR passed CI - when it shouldn't have. Fix
`pallet-xcm` test benchmarks.

# 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 <>

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>
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Step in https://github.com/paritytech/polkadot-sdk/issues/171

This PR adds `derive_impl` on all `frame_system` config impls for mock
runtimes. The overridden configs are maintained as of now to ensure
minimal changes.

---------

Co-authored-by: Oliver Tale-Yazdi <[email protected]>

Use non-zero weight limit in benchmarking `pallet_xcm::execute()` so the
given XCM actually executes.