This will be a batch of two scheduled transactions. They would probably work fine at once, but will schedule to be safe and ensure that the `set_storage` takes place prior to authorizing the upgrade.

The first will set some storage keys in Shell for Statemint's "genesis". The second will authorize the upgrade to Statemint. Both calls need to be constructed on Shell and then dispatched from the Relay Chain in an XCM.

See the [release notes](https://github.com/paritytech/cumulus/releases/tag/statemint-v6.0.1) to review the assets, reproduce the `set_storage` call, and generate the runtime.

## Shell Constructions

### Set Storage

The `set_storage` call can be generated with the `build-spec` command from a collator node, using `statemint_genesis.json` as input. See the release notes for more info. Notable storage items include:

- Setting the first set of Aura collators.
- Setting the `SafeXcmVersion` to `2` to protect against older XCM formats.

Call data (statemint_genesis_values.scale):

```
0x0006908015464cac3378d46f113cd5b7a4d71c84476f594316a7dfe49c1f352d95abdaf110000000008015464cac3378d46f113cd5b7a4d71c844e7b9012096b41c4eb3aaf947f6ea4290800008015464cac3378d46f113cd5b7a4d71c845579297f4dfb9609e7e4c2ebab9ce40a0502104c3d674d2a01060f0ded218e5dcc6f90c1726f43df79885eb3e22d97a20d5421c7d7d38d16bc23c6321152c50306212dc22c0efc04a2e52b5cccfc31ab3d7811c5c07ba203d7375675f5c1ebe70f0a5bb729ae57b48bcc877fcc2ab21309b7620b2d0013fb974794bd7aa452465b567d48ef70373fe231a637c1fb7c547e85b38015464cac3378d46f113cd5b7a4d71c84579f5a43435b04a98d64da0cefe185054000a0acb9030000000000000000000000801809d78346727a0ef58c0fa03bafa3234e7b9012096b41c4eb3aaf947f6ea42908000080267ada16405529c2f7ef2727d71edbde4e7b9012096b41c4eb3aaf947f6ea429080000083a6300803c311d57d4daf52904616cf69648081e4e7b9012096b41c4eb3aaf947f6ea429080000803c311d57d4daf52904616cf69648081e5e0621c4869aa60c02be9adcc98a0d1d0502104c3d674d2a01060f0ded218e5dcc6f90c1726f43df79885eb3e22d97a20d5421c7d7d38d16bc23c6321152c50306212dc22c0efc04a2e52b5cccfc31ab3d7811c5c07ba203d7375675f5c1ebe70f0a5bb729ae57b48bcc877fcc2ab21309b7620b2d0013fb974794bd7aa452465b567d48ef70373fe231a637c1fb7c547e85b3803f1467a096bcd71a5b6a0c8155e208104e7b9012096b41c4eb3aaf947f6ea4290800008057f8dc2f5ab09467896f47300f0424384e7b9012096b41c4eb3aaf947f6ea4290800008057f8dc2f5ab09467896f47300f0424385e0621c4869aa60c02be9adcc98a0d1d0502104c3d674d2a01060f0ded218e5dcc6f90c1726f43df79885eb3e22d97a20d5421c7d7d38d16bc23c6321152c50306212dc22c0efc04a2e52b5cccfc31ab3d7811c5c07ba203d7375675f5c1ebe70f0a5bb729ae57b48bcc877fcc2ab21309b7620b2d0013fb974794bd7aa452465b567d48ef70373fe231a637c1fb7c547e85b3805e8a19e3cd1b7c148b33880c479c02814e7b9012096b41c4eb3aaf947f6ea42908000080682a59d51ab9e48a8c8cc418ff9708d24e7b9012096b41c4eb3aaf947f6ea429080000807474449cca95dc5d0c00e71735a6d17d4e7b9012096b41c4eb3aaf947f6ea429080000807b3237373ffdfeb1cab4222e3b520d6b4e7b9012096b41c4eb3aaf947f6ea42908000080c2261276cc9d1f8598ea4b6a74b15c2f308ce9615de0775a82f8a94dc3d285a1040180c2261276cc9d1f8598ea4b6a74b15c2f4e7b9012096b41c4eb3aaf947f6ea42908000080c2261276cc9d1f8598ea4b6a74b15c2f57c875e4cff74148e4628f264b974c80400000000000000000000000000000000080cd5c1f6df63bc97f4a8ce37f14a50ca74e7b9012096b41c4eb3aaf947f6ea4290800002101cec5070d609dd3497f72bde07fc96ba04c014e6bf8b8c2c011e7290b85696bb30b1aeeca675702f24c3d674d2a01060f0ded218e5dcc6f90c1726f43df79885eb3e22d97a20d5421804c3d674d2a01060f0ded218e5dcc6f90c1726f43df79885eb3e22d97a20d54212101cec5070d609dd3497f72bde07fc96ba04c014e6bf8b8c2c011e7290b85696bb314f6a7e973c2c34dc5c07ba203d7375675f5c1ebe70f0a5bb729ae57b48bcc877fcc2ab21309b76280c5c07ba203d7375675f5c1ebe70f0a5bb729ae57b48bcc877fcc2ab21309b7622101cec5070d609dd3497f72bde07fc96ba04c014e6bf8b8c2c011e7290b85696bb34cb6fa5260704ee40b2d0013fb974794bd7aa452465b567d48ef70373fe231a637c1fb7c547e85b3800b2d0013fb974794bd7aa452465b567d48ef70373fe231a637c1fb7c547e85b32101cec5070d609dd3497f72bde07fc96ba04c014e6bf8b8c2c011e7290b85696bb35242002c980f9df1c7d7d38d16bc23c6321152c50306212dc22c0efc04a2e52b5cccfc31ab3d781180c7d7d38d16bc23c6321152c50306212dc22c0efc04a2e52b5cccfc31ab3d781180cec5070d609dd3497f72bde07fc96ba04e7b9012096b41c4eb3aaf947f6ea4290800003501cec5070d609dd3497f72bde07fc96ba0726380404683fc89e8233450c8aa19502fe5f80e8854f64761757261804c3d674d2a01060f0ded218e5dcc6f90c1726f43df79885eb3e22d97a20d5421804c3d674d2a01060f0ded218e5dcc6f90c1726f43df79885eb3e22d97a20d54213501cec5070d609dd3497f72bde07fc96ba0726380404683fc89e8233450c8aa1950a3f059d7e690a34f6175726180c7d7d38d16bc23c6321152c50306212dc22c0efc04a2e52b5cccfc31ab3d781180c7d7d38d16bc23c6321152c50306212dc22c0efc04a2e52b5cccfc31ab3d78113501cec5070d609dd3497f72bde07fc96ba0726380404683fc89e8233450c8aa1950c41649dd3c9d26696175726180c5c07ba203d7375675f5c1ebe70f0a5bb729ae57b48bcc877fcc2ab21309b76280c5c07ba203d7375675f5c1ebe70f0a5bb729ae57b48bcc877fcc2ab21309b7623501cec5070d609dd3497f72bde07fc96ba0726380404683fc89e8233450c8aa1950fa571e62466b970561757261800b2d0013fb974794bd7aa452465b567d48ef70373fe231a637c1fb7c547e85b3800b2d0013fb974794bd7aa452465b567d48ef70373fe231a637c1fb7c547e85b380cec5070d609dd3497f72bde07fc96ba088dcde934c658227ee1dfafcd6e169030502104c3d674d2a01060f0ded218e5dcc6f90c1726f43df79885eb3e22d97a20d5421c7d7d38d16bc23c6321152c50306212dc22c0efc04a2e52b5cccfc31ab3d7811c5c07ba203d7375675f5c1ebe70f0a5bb729ae57b48bcc877fcc2ab21309b7620b2d0013fb974794bd7aa452465b567d48ef70373fe231a637c1fb7c547e85b380cec5070d609dd3497f72bde07fc96ba0e0cdd062e6eaf24295ad4ccfc41d46090504104c3d674d2a01060f0ded218e5dcc6f90c1726f43df79885eb3e22d97a20d54214c3d674d2a01060f0ded218e5dcc6f90c1726f43df79885eb3e22d97a20d5421c7d7d38d16bc23c6321152c50306212dc22c0efc04a2e52b5cccfc31ab3d7811c7d7d38d16bc23c6321152c50306212dc22c0efc04a2e52b5cccfc31ab3d7811c5c07ba203d7375675f5c1ebe70f0a5bb729ae57b48bcc877fcc2ab21309b762c5c07ba203d7375675f5c1ebe70f0a5bb729ae57b48bcc877fcc2ab21309b7620b2d0013fb974794bd7aa452465b567d48ef70373fe231a637c1fb7c547e85b30b2d0013fb974794bd7aa452465b567d48ef70373fe231a637c1fb7c547e85b380d57bce545fb382c34570e5dfbf338f5e4e7b9012096b41c4eb3aaf947f6ea42908000080d5e1a2fa16732ce6906189438c0a82c64e7b9012096b41c4eb3aaf947f6ea42908000080e38f185207498abb5c213d0fb059b3d84e7b9012096b41c4eb3aaf947f6ea42908000080e38f185207498abb5c213d0fb059b3d86323ae84c43568be0d1394d5d0d522c4100200000080f0c365c3cf59d671eb72da0e7a4113c44e7b9012096b41c4eb3aaf947f6ea429080000
```

### Authorize Upgrade

This message authorizes the upgrade of Shell to a runtime with a given hash (statemint_runtime-v601.compact.compressed.wasm). Once the upgrade is authorized, anyone can submit the runtime via `parachain_system.enact_authorized_upgrade`, and it will upgrade 600 blocks (approximately 1 hour) later.

Call data: `0x0103af49687b93d91fc08c1fcea1001d724a95c533a949019645d3e4179beedbf67e`

![](https://i.imgur.com/rHrTJRx.png)

## Polkadot Proposal

This proposal is to schedule these messages to dispatch from Polkadot to Shell. They will dispatch 5 and 20 blocks after enactment to ensure each is processed separately. We give them plenty of weight (100 billion and 1 billion, respectively) to ensure they execute.

Call hash: `0xa6830793b6a3473f66fbd7305a9e330dd2dd688df0e8fcbd0c9ff08d28040a34`

![](https://i.imgur.com/5D8syF9.png)
![](https://i.imgur.com/YmVC8o3.png)


after

maybePeriodic

priority

call

:

- Polkassembly Referendum post outlines 2 scheduled transactions. 
- First transaction is `set_storage` call generated with `build-spec` command using `statemint_genesis.json` as input setting the Aura collators and `SafeXcmVersion` to `2`. 
- Second transaction authorizes upgrade of Shell to a new runtime (statemint_runtime-v601.compact.compressed.wasm). 
- Proposal is to schedule the 2 messages to dispatch from Polkadot to Shell with 5/20 blocks after enactment and 100b/1b weight. 

#46 Upgrade Shell to Statemint