Upgrade priority: **Medium** (timely update recommended) - due to change(s): Make signature batching use specialized methods (paritytech/substrate#6616).

Specs of the runtime can be found here: [https://github.com/paritytech/polkadot/releases/tag/v0.8.15](https://github.com/paritytech/polkadot/releases/tag/v0.8.15)

 Set the new runtime code.

 # <weight>
 - `O(C + S)` where `C` length of `code` and `S` complexity of `can_set_code`
 - 1 storage write (codec `O(C)`).
 - 1 call to `can_set_code`: `O(S)` (calls `sp_io::misc::runtime_version` which is expensive).
 - 1 event.
 The weight of this function is dependent on the runtime, but generally this is very expensive.
 We will treat this as a full block.
 # </weight>

- There is a suggestion to make a change in the way signatures are processed in Polkassembly.
- It is recommended to update this change in a timely manner.
- The details of the change can be found in a link provided.
- The change is called "Make signature batching use specialized methods."
- This change will help improve the way Polkassembly works.

#74 SetCode, Kusama runtime 2015