DFINITY Foundation

Synapse.vote (original)

ICDevs.org

CryptoIsGood

Anvil

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ysyms

The Accumulators’ Neuron

RawTech Venture

Paul Young

ICPMANUAL

8yeargangDAO

Isaac Valadez

Krzysztof Żelazko

Nicolas.ic

Smaug’s Neuron for Retail Investors

ICLight.io

Synapse.vote (NEW)

Taggr Network

CodeGov.org

Sonic AMM

Internet Computer Association

Arthur’s Neuron (used to be cycle_dao)

Inactive (Request Removal) - The Fools' Court

Always Rejects

John Wiegley

# Proposal to Upgrade the ckBTC Ledger Canister

Git hash: `7e694e300a6bc1e916745e8ce9dae9b49dfb0f02`

New compressed Wasm hash: 2650afc608af4f5852f882cd57d89f9c31095c9081fb0074dcb0767194e19147

Target canister: mxzaz-hqaaa-aaaar-qaada-cai

Previous ckBTC ledger proposal: https://dashboard.internetcomputer.org/proposal/124817

---

## Motivation

This is a proposal to upgrade the ckBTC ledger canister to enable the ICRC-2 endpoints. 
The following bug has been fixed: an approve block's `expires_at` field is now correctly encoded as a `u64` unsigned integer instead of an `object`.


## Upgrade args

```
git fetch
git checkout 7e694e300a6bc1e916745e8ce9dae9b49dfb0f02
cd rs/rosetta-api/icrc1/ledger
didc encode -d ledger.did -t '(LedgerArg)' '(variant{Upgrade=opt record{feature_flags=opt record{icrc2=true}}})'
```

## Release Notes

```
$ git log --format="%C(auto) %h %s" 9fce5907235a440b577c4d2b70844d40280b7eb3..7e694e300a6bc1e916745e8ce9dae9b49dfb0f02  rs/rosetta-api/icrc1/ledger

 a09de2208e feat(icrc1): changing expires_at from Timestamp to u64
 78836a179a chore: use the global workspace for the version of the futures crate
```

## Wasm Verification

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

```
git fetch
git checkout 7e694e300a6bc1e916745e8ce9dae9b49dfb0f02
./gitlab-ci/container/build-ic.sh -c
sha256sum ./artifacts/canisters/ic-icrc1-ledger.wasm.gz
```

Upgrade Nns Canister: mxzaz-hqaaa-aaaar-qaada-cai to wasm with hash: 2650afc608af4f5852f882cd57d89f9c31095c9081fb0074dcb0767194e19147