DFINITY Foundation

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John Wiegley

## Proposal to Upgrade the Registry Canister
### Proposer: DFINITY Foundation
### Git Hash: b39f782ae9e976f6f25c8f1d75b977bd22c81507
### New Wasm Hash: 21788e6c715ce1dd6189151f32b6b3216ed7df9e97935ab11bd3c227c335225c
### Target canister: rwlgt-iiaaa-aaaaa-aaaaa-cai
---

## Features

* These changes are in preparation for the upcoming [https://forum.dfinity.org/t/threshold-schnorr-facilitating-brc-20-trading-solana-integration-certificate-signing-and-more/28993](Threshold Schnorr feature).

    * Registry subnet records now support more generic master public keys, enabling the threshold Schnorr signature scheme in addition to (priorly supported) threshold ECDSA scheme.
    * Since the ECDSA-specific data has already been migrated to the generic format, this release switches the source of truth from the legacy to the new format.
    * The following NNS governance proposals have been extended to support the new generic master public keys: Create Subnet, Update Subnet Config, Recover Subnet.
    * The Registry now allows for new master public keys to be added to an existing signing subnet. Removing keys held by a signing subnet is still forbidden.

## Release Notes
```
$ git log --format="%C(auto) %h %s" 77dafef0cca09488c9e0b9c5a0437851ec1be0ce..b39f782ae9e976f6f25c8f1d75b977bd22c81507 --  ./rs/registry/canister
 b09876a407 feat(registry): Enhance validation for `UpdateSubnetPayload`
 c4156d3c9f feat(registry): Implement `RecoverSubnetPayload.chain_key_config`
 b7bb136fc2 feat(ecdsa): [CON-1232] Allow adding new keys to an ECDSA subnet
 09d89b2a1c feat(registry): Implement `CreateSubnetPayload.chain_key_config`
 2026e1e5f0 feat(registry): Implement `UpdateSubnetPayload.{chain_key_config, chain_key_signing_{en, dis}abled}`
 ed9b613c47 Merge branch 'arshavir/NNS1-3006' into 'master'
 e238194f11 feat(registry): Switch to new source of truth for master public keys in subnet records
 c549e32a8a chore: upgrade crates and use workspace versions
 6e913a9130 chore(registry): Remove dangling API type from registry.did
 4227bcf590 Merge branch 'rumenov/removemorep2p' into 'master'
 c9ff688e16 chore: remove legacy gossip config
 da02705960 chore: Bump rust version to 1.79
 695a0affa9 chore: Bump rust version to 1.78
 bae2eb352d Merge branch 'arshavir/NNS1-3021' into 'master'
 8a3ac1dacd chore(registry): Delete obsolete `Registry.delete_subnet` code [override-didc-check]
 568bac66f4 chore(CON-1292): Migrate replica to read chain key config from registry
```

## Wasm Verification
Verify that the hash of the gzipped WASM matches the proposed hash.
```
git fetch
git checkout b39f782ae9e976f6f25c8f1d75b977bd22c81507
./gitlab-ci/container/build-ic.sh -c
sha256sum ./artifacts/canisters/registry-canister.wasm.gz
```
## Current Version
- Current Git Hash: 77dafef0cca09488c9e0b9c5a0437851ec1be0ce
- Current Wasm Hash: 6322c00849cc719a069242f6fbddc007ff7432be41c7385a17db0aad71733511


Upgrade NNS Canister: rwlgt-iiaaa-aaaaa-aaaaa-cai to wasm with hash: 21788e6c715ce1dd6189151f32b6b3216ed7df9e97935ab11bd3c227c335225c