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John Wiegley

# Proposal to upgrade the ICP ledger canister

Repository: `https://github.com/dfinity/ic.git`

Release: https://github.com/dfinity/ic/releases/tag/ledger-suite-icp-2025-01-30

Git hash: `6bc1943fc5bcff846959025c5f3f2f7f510489cf`

New compressed Wasm hash: `6dae518b33ef5814462ff921e81d13acd5e7a8f4e383ab849d87a33b0a608b08`

Upgrade args hash: `0fee102bd16b053022b69f2c65fd5e2f41d150ce9c214ac8731cfaf496ebda4e`

Target canister: `ryjl3-tyaaa-aaaaa-aaaba-cai`

Previous ICP ledger proposal: https://dashboard.internetcomputer.org/proposal/134492

---

## Motivation

- Migrate the account balances to stable structures
- Accept variable length account identifier in account_balance query
- Change length type in GetBlocksArgs
- Bump rust to v1.84


## Upgrade args

```
git fetch
git checkout 6bc1943fc5bcff846959025c5f3f2f7f510489cf
cd rs/ledger_suite/icp
didc encode '()' | xxd -r -p | sha256sum
```

## Release Notes

```
git log --format='%C(auto) %h %s' 7c6309cb5bec7ab28ed657ac7672af08a59fc1ba..6bc1943fc5bcff846959025c5f3f2f7f510489cf -- packages/icrc-ledger_types rs/ledger_suite/icp/ledger/src rs/ledger_suite/icp/src rs/ledger_suite/common/ledger_canister_core/src rs/ledger_suite/common/ledger_core/src
215a697e14 feat: ICP-ledger: FI-1440: Implement V4 for ICP ledger - migrate balances to stable structures (#3314)
c741e34945 feat: ICRC-ledger: FI-1439: Implement V4 for ICRC ledger - migrate balances to stable structures (#2901)
03a9b37a0e fix(ICP_Ledger): FI-1607: Accept variable length account identifier in account_balance query (#3094)
b1f4339d48 fix(ICP_Ledger): FI-1590: Change length type in GetBlocksArgs (#3092)
 ```

## Wasm Verification

Verify that the hash of the gzipped WASM matches the proposed hash.

```
git fetch
git checkout 6bc1943fc5bcff846959025c5f3f2f7f510489cf
"./ci/container/build-ic.sh" "--canisters"
sha256sum ./artifacts/canisters/ledger-canister_notify-method.wasm.gz
```


Upgrade NNS Canister: ryjl3-tyaaa-aaaaa-aaaba-cai to wasm with hash: 6dae518b33ef5814462ff921e81d13acd5e7a8f4e383ab849d87a33b0a608b08