# NNS Updates, June 14, 2024 **URL:** \ **Category:** Developers\ **Tags:** nns\ **Created:** [June 14, 2024, 11:07pm UTC](https://forum.dfinity.org/t/nns-updates-june-14-2024/31972 "2024-06-14T23:07:12Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![jasonzhu](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/jasonzhu/32/12251_2.png) [@jasonzhu](https://forum.dfinity.org/u/jasonzhu)\ **Post date:** [June 14, 2024, 11:07pm UTC](https://forum.dfinity.org/t/nns-updates-june-14-2024/31972/1 "2024-06-14T23:07:12Z")
The NNS Team will be submitting the following upgrade proposals this Friday, 2024-06-14. DFINITY plans to vote on these proposals the following Monday. ## Additional Notes The Cycles Minting canister upgrade contains an upgrade argument, which lets it interact with the [Cycles Ledger canister](https://github.com/dfinity/cycles-ledger), so that the Cycles Minting canister can mint cycles and transfer them to Cycles Ledger. ## Proposals to be Submitted ### Cycles-minting [https://dashboard.internetcomputer.org/proposal/130396](https://dashboard.internetcomputer.org/proposal/130396) ````auto ## Proposal to Upgrade the Cycles-minting Canister ### Proposer: DFINITY Foundation ### Git Hash: b9a20425f94eb1433385a7ed0c59c41095c17b7b ### New Wasm Hash: 58ee30cb6cb074dc066b7e8dfc78d8e2b1a9e97a48e39fedbace65c547703d80 ### Upgrade Args Hash: 2f1911cdd0684a23be6e07695a0be2fb3a5c5c3289827c0be6adb334865fba9e ### Target canister: rkp4c-7iaaa-aaaaa-aaaca-cai --- ## Features * Merge canister creation fixes from hotfix branch into master. ## Release Notes ``` $ git log --format="%C(auto) %h %s" 98a61b5cee32dd109a653e41d0a4ddae5c53c916..b9a20425f94eb1433385a7ed0c59c41095c17b7b -- ./rs/nns/cmc f455700243 chore: use the rand version from the Cargo workspace c6d2e72520 Merge canister creation fixes from hotfix branch into master. ``` ## Candid Post Upgrade Args ```candid (opt record { cycles_ledger_canister_id = opt principal "um5iw-rqaaa-aaaaq-qaaba-cai" }) ``` ### Validating Candid Args Verify that the hash of the args matches proposal contents. `didc encode '(opt record { cycles_ledger_canister_id = opt principal "um5iw-rqaaa-aaaaq-qaaba-cai" })' | xxd -r -p | sha256sum` ## Wasm Verification Verify that the hash of the gzipped WASM matches the proposed hash. ``` git fetch git checkout b9a20425f94eb1433385a7ed0c59c41095c17b7b ./gitlab-ci/container/build-ic.sh -c sha256sum ./artifacts/canisters/cycles-minting-canister.wasm.gz ``` ## Current Version - Current Git Hash: 98a61b5cee32dd109a653e41d0a4ddae5c53c916 - Current Wasm Hash: 9c4e48d0e6241fb86ade57d3b9d076660bd1ac8e704d0309ad06e5eb291968d8 ```` ### Root [https://dashboard.internetcomputer.org/proposal/130402](https://dashboard.internetcomputer.org/proposal/130402) ````auto ## Proposal to Upgrade the Root Canister ### Proposer: DFINITY Foundation ### Git Hash: b9a20425f94eb1433385a7ed0c59c41095c17b7b ### New Wasm Hash: 0c791dc6010b041112ab23935d1be8ca28e2b7ae1374c0051a1dde12262b658b ### Target canister: r7inp-6aaaa-aaaaa-aaabq-cai --- ## Features * Root: use serde_bytes in NNS root canister. ## Release Notes ``` $ git log --format="%C(auto) %h %s" d7ddd2969837fc6c9c0b86d331f7bc61e9e78bd1..b9a20425f94eb1433385a7ed0c59c41095c17b7b -- ./rs/nns/handlers/root/impl 2d7dfc0135 chore: upgrade tempfile version and use the workspace. version everywhere 06f24bda7a fix: use serde_bytes in NNS root canister bcae09b797 chore: early access control in change_canister_controllers of NNS root 7957dab20c chore: rules_rust 0.33.0 -> 0.42.1 ``` ## Wasm Verification Verify that the hash of the gzipped WASM matches the proposed hash. ``` git fetch git checkout b9a20425f94eb1433385a7ed0c59c41095c17b7b ./gitlab-ci/container/build-ic.sh -c sha256sum ./artifacts/canisters/root-canister.wasm.gz ``` ## Current Version - Current Git Hash: d7ddd2969837fc6c9c0b86d331f7bc61e9e78bd1 - Current Wasm Hash: 4607bb1c0742a52449a7c66f7d90681c2d876372a49a8ed474852bcdef144001 ```` ---
**Author:** ![icme](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/icme/32/4327_2.png) [@icme](https://forum.dfinity.org/u/icme)\ **Post date:** [June 14, 2024, 11:10pm UTC](https://forum.dfinity.org/t/nns-updates-june-14-2024/31972/2 "2024-06-14T23:10:04Z")
> [@jasonzhu](#): > > The Cycles Minting canister upgrade contains an upgrade argument, which lets it interact with the [Cycles Ledger canister](https://github.com/dfinity/cycles-ledger), so that the Cycles Minting canister can mint cycles and transfer them to Cycles Ledger. Curious, what’s the mechanism/use case by which the Cycles Ledger canister can ask the CMC for cycles? ---
**Author:** ![ZackDS](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/zackds/32/40368_2.png) [@ZackDS](https://forum.dfinity.org/u/ZackDS)\ **Post date:** [June 15, 2024, 6:25am UTC](https://forum.dfinity.org/t/nns-updates-june-14-2024/31972/3 "2024-06-15T06:25:18Z")
@jasonzhu you should probably make it clear to everyone that the following 2 duplicated CMC proposal should be rejected. Thanks ---
**Author:** ![ZackDS](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/zackds/32/40368_2.png) [@ZackDS](https://forum.dfinity.org/u/ZackDS)\ **Post date:** [June 16, 2024, 4:39pm UTC](https://forum.dfinity.org/t/nns-updates-june-14-2024/31972/4 "2024-06-16T16:39:15Z")
The CodeGov project completed reviews for the proposals and voted to adopt them. We voted to reject proposals [130397](https://dashboard.internetcomputer.org/proposal/130397) and [130398](https://dashboard.internetcomputer.org/proposal/130398) since they got submitted as duplicated given the issues at that time. You can find details on [OpenChat](https://oc.app/community/32l35-yaaaa-aaaar-aw57q-cai/channel/168083459961697538699863191526193241390/81) At the time of this comment on the forum, there are still 2 days left in the voting period, which means there is still plenty of time for others to review the proposal and vote independently. ---
**Author:** ![Vivienne](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/vivienne/32/29170_2.png) [@Vivienne](https://forum.dfinity.org/u/Vivienne)\ **Post date:** [June 17, 2024, 8:03am UTC](https://forum.dfinity.org/t/nns-updates-june-14-2024/31972/5 "2024-06-17T08:03:00Z")
> [@icme](#): > > Curious, what’s the mechanism/use case by which the Cycles Ledger canister can ask the CMC for cycles? The cycles ledger can’t ask the CMC for cycles. We want people to be able to get by without a cycles wallet. For this, there needs to be a mechanism to turn ICP to cycles on the cycles ledger without using a proxy canister. For this, the CMC has a new function `notify_mint_cycles` basically does the same as `notify_top_up`, but instead of depositing the cycles to the target canister, it calls `deposit` on the cycles ledger to top up the user’s account This proposal ‘only’ configures the cycles ledger canister ID so that the CMC knows on which canister it should call `deposit` With this configured, `dfx cycles convert` will start working ---
**Author:** ![skilesare](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/skilesare/32/5609_2.png) [@skilesare](https://forum.dfinity.org/u/skilesare)\ **Post date:** [June 21, 2024, 1:00pm UTC](https://forum.dfinity.org/t/nns-updates-june-14-2024/31972/6 "2024-06-21T13:00:06Z")
It looks like the memo may work in a bit different way than notify\_top\_up. It wants you to specify a memo i the notify\_mint\_cycles call. What are the rules/spec here? Do you just need to know the memo and make sure it matches? Or does it need to be the owner of the account converter to a memo as is used other places? ---
**Author:** ![Vivienne](https://sea1.discourse-cdn.com/flex023/user_avatar/forum.dfinity.org/vivienne/32/29170_2.png) [@Vivienne](https://forum.dfinity.org/u/Vivienne)\ **Post date:** [June 24, 2024, 11:45am UTC](https://forum.dfinity.org/t/nns-updates-june-14-2024/31972/7 "2024-06-24T11:45:19Z")
The rule is the memo needs to be the expected value. See also [the code](https://github.com/dfinity/ic/blob/ed5ac23c31f0b3f4f8f817e75fff3323b02bb057/rs/nns/cmc/src/main.rs#L1307). This works the same as in `notify_top_up`, which does the [same thing](https://github.com/dfinity/ic/blob/ed5ac23c31f0b3f4f8f817e75fff3323b02bb057/rs/nns/cmc/src/main.rs#L1225) with the memo.