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# Upgrade the Bitcoin Testnet Canister

## Summary

Updates the canister to periodically burn its cycles to be included in the IC's cycle burn rate.

## Change Log

### Adds
#
feat: Periodically burn all the cycles in the Bitcoin canister by @dragoljub-duric in #268

## Commit Log

```shell
$ git log --format='%C(auto) %h %s' release/2023-10-13..release/2024-01-22

 62a71e4 fix: make the bitcoin testnet watchdog less sensitive (#277)
 d3aa4d6 chore: upgrade version of ic-btc-interface crate (#273)
 96a4894 chore(deps): Bump unsafe-libyaml from 0.2.9 to 0.2.10 (#275)
 b4166ef Upgrade dfx version in CI of Bitcoin canister (#276)
 9b239d1 chore: enable watchdog_health_status test on CI (#274)
 eba37a5 chore: reduce min_explorers to 2 in tests setup (#270)
 594afac chore: Update candid and ic-cdk (#272)
 c321647 fix: fix skipping job checks-pass (#271)
 be7cf3b feat: Use the burn cycles API in the Bitcoin canister (#268)
 5696340 docs: Update development-guide.md (#267)
 dad22c1 feat: Make cargo bench part of CI to ensure we don’t accidentally introduce performance regressions (#257)
 08dbf07 chore: update candid version (#266)
 957db3a chore(deps): Bump rustix from 0.37.20 to 0.37.25 (#264)
 e6a2c09 fix: fix watchdog canister upgradability test (#265)
 d8d44a6 feat: improve benchmarking reports (#263)
```

## How can I verify the Wasm hash of this canister?

NOTE: This process is not yet guaranteed to match on M1 Macs.

```shell
# Clone bitcoin-canister repo.
$ git clone git@github.com:dfinity/bitcoin-canister.git
$ cd bitcoin-canister
$ git checkout 62a71e47c491fb842ccc257b1c675651501f4b82 # release/2024-01-22

# Build all the docker canisters.
$ docker build -t canisters .

# Extract canister's wasm.
$ docker run --rm --entrypoint cat canisters /ic-btc-canister.wasm.gz > ic-btc-canister.wasm.gz

# Calculate SHA-256 of the canister's wasm.
$ sha256sum ic-btc-canister.wasm.gz
```

You should then see the following output:

```shell
1830d3b90ae4cceab6b4b148f66ebe242535a920faa9daba66b8ac9983314cc2  ic-btc-canister.wasm.gz
```


Upgrade NNS Canister: g4xu7-jiaaa-aaaan-aaaaq-cai to wasm with hash: 1830d3b90ae4cceab6b4b148f66ebe242535a920faa9daba66b8ac9983314cc2