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Cadence WG update #1503

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Aug 30, 2024
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Cadence WG update #1503

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Cadence WG update
j1010001 Aug 30, 2024
5ae1447
Cadence WG update 2
j1010001 Aug 30, 2024
16a1985
Cadence WG update 3
j1010001 Aug 30, 2024
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117 changes: 111 additions & 6 deletions agendas/2024/sprint-kickoff/2024-08-30-Flow-Sprint-Kickoff.md
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### Team Wins 🎉

-
- Ready for Crescendo mainnet launch - v0.37.9.
- Added check-storage command to util program to check health of execution state using snapshot.
- Execution saturation on Devnet 51 is 40% lower compared with Devnet50 (14% -> 9%).
- EVM dashboard up & running in Grafana.


### General updates
Expand Down Expand Up @@ -88,28 +91,130 @@ Cycle Objective(s):
**Done last sprint**


**Crescendo MN upgrade**
- Cadence migration
- Needed for CLI fix: [Export type requirement extraction](https://github.com/onflow/flow-go/pull/6395)
- Network tooling / infra / bootstrap improvements
- [wait for downloading checkpoint before starting up consensus](https://github.com/dapperlabs/dapper-flow-hosting/pull/1577)
- [CI - print and include the sha256 checksum of the boot tools and util](https://github.com/onflow/flow-go/pull/6404)
- [check checkpoint has been downloaded](https://github.com/dapperlabs/dapper-flow-hosting/pull/1574)
- Dependency updates (tooling updates & fixes)
- [1](https://github.com/onflow/flow-cli/pull/1714), [2](https://github.com/onflow/flow-cli/pull/1714), [3](https://github.com/onflow/flow-evm-gateway/pull/478), [4](https://github.com/onflow/flixkit-go/pull/76), [5](https://github.com/onflow/cadence-tools/pull/421), [6](https://github.com/onflow/flowkit/pull/71), [7](https://github.com/onflow/cadence-tools/pull/420), [8](https://github.com/onflow/flow-emulator/pull/738), [9](https://github.com/onflow/cadence-tools/pull/419), [10](https://github.com/onflow/flow-go/pull/6403), [11](https://github.com/onflow/flow-cli/pull/1704), [12](https://github.com/onflow/flow-evm-gateway/pull/470), [13](https://github.com/onflow/flow-go/pull/6390), [14](https://github.com/onflow/flow-go-sdk/pull/732), [15](https://github.com/onflow/flixkit-go/pull/75), [16](https://github.com/onflow/cadence-tools/pull/417), [17](https://github.com/onflow/flowkit/pull/70), [18](https://github.com/onflow/cadence-tools/pull/416), [19](https://github.com/onflow/flow-emulator/pull/734), [20](https://github.com/onflow/cadence-tools/pull/415), [21](https://github.com/onflow/flow-go/pull/6386), [22](https://github.com/onflow/flow-go-sdk/pull/731), [23](https://github.com/onflow/flow-go/pull/6383)

**Cadence Language**
- Handling of contracts not upgraded to 1.0
- [Fix program recovery](https://github.com/onflow/cadence/pull/3548)
- [Add Type.isRecovered field](https://github.com/onflow/cadence/pull/3505)
- Bugfix
- [Fix contract update error when old program has errors](https://github.com/onflow/cadence/pull/3554)
- migration:
- [Cadence migration is non-deterministic since crescendo RC3](https://github.com/onflow/cadence/issues/3536)
- [View checking incorrectly assumes code type-checks](https://github.com/onflow/cadence/issues/3529)
- Improvement
- [Check if CBOR tag number is reserved by atree before using it to encode Cadence values](https://github.com/onflow/cadence/pull/3532)
- [Cannot use interface-converted type-requirements in fields](https://github.com/onflow/cadence/issues/3527)
- Docs
- [Improve the example for type-requirement removal](https://github.com/onflow/cadence-lang.org/pull/134)
- [Improve documentation for capabilities](https://github.com/onflow/cadence-lang.org/pull/133)
- Tests
- [Smoke test update of enum key in dictionary](https://github.com/onflow/cadence/pull/3556)
- [Add regression tests for nil-coalescing bug](https://github.com/onflow/cadence/pull/3553)

**Cadence Execution**
- Handling of contracts not upgraded to 1.0
- [Enable program recovery on MN](https://github.com/onflow/flow-go/pull/6336)
- [Recover NFT Collections](https://github.com/onflow/flow-go/pull/6394)
- [Recover NFT contract](https://github.com/onflow/flow-go/pull/6388)
- Bugfix
- [NormalizedExecutionTimePerComputationUnit reported incorrectly after spork](https://github.com/onflow/flow-go/issues/6346)
- Util
- [Add command to debug transaction](https://github.com/onflow/flow-go/pull/6385)
- [Move and export some migration funcs to util package for reuse](https://github.com/onflow/flow-go/pull/6363)
- Diff-state:
- [Add support for cap_tag domain](https://github.com/onflow/flow-go/pull/6407)
- [Skip EVM storage account for value comparison](https://github.com/onflow/flow-go/pull/6401)
- Check-storage:
- [Add support for cap_tag domain](https://github.com/onflow/flow-go/issues/6405)
- [Skip EVM storage account](https://github.com/onflow/flow-go/pull/6399)
- [Add check-storage command to util program to check storage health of execution state](https://github.com/onflow/flow-go/pull/6364)
- Execution effort re-calibration
- [Use multiple executions in local data collection](https://github.com/onflow/flow-execution-effort-estimation/pull/1)
- emulator: [Update execution effort constants](https://github.com/onflow/flow-emulator/pull/729)
- Tests
- [Add test for storage capability migration determinism](https://github.com/onflow/flow-go/pull/6375)
- Atree: [Make smoke tests check if CBOR tag nums are reserved](https://github.com/onflow/atree/pull/436)

**EVM Core**
- Improvement
- [Decode legacy block event](https://github.com/onflow/flow-go/pull/6398)
- [Split contract implementation into separate package](https://github.com/onflow/flow-go/pull/6396)
- [Remove legacy migrations needed for Previewnet](https://github.com/onflow/flow-go/issues/6368)
- [Use a fixed coinbase address for Run and BatchRun and transfer gas fees afterward](https://github.com/onflow/flow-go/pull/6380)
- [Set prevrandao value on block level](https://github.com/onflow/flow-go/pull/6378)
- Metrics & Logging
- [Let the system transaction report metrics](https://github.com/onflow/flow-go/pull/6362)
- [Expose logger to the EVM environment](https://github.com/onflow/flow-go/pull/6343)
- Tests
- [Improve EVM addresses in tests](https://github.com/onflow/flow-go/pull/6400)

**EVM Gateway**
- Feature
- State Index
- [Ledger implementation](https://github.com/onflow/flow-evm-gateway/issues/449)
- Bugfix
- [eth_getLogs returns incorrect records when filtering by block number](https://github.com/onflow/flow-evm-gateway/issues/439)
- [EffectiveGasPrice is not properly set for all transaction types](https://github.com/onflow/flow-evm-gateway/pull/479)
- [Index field on receipt logs does not return correct value for blocks with multiple transactions & logs](https://github.com/onflow/flow-evm-gateway/pull/462)
- [EVM blockheight metric being emitted is Cadence block height rather than EVM block height](https://github.com/onflow/flow-evm-gateway/issues/455)
- [Unsupported mainnet network ID for --flow-network-id config flag](https://github.com/onflow/flow-evm-gateway/issues/456)
- [Logging of API responses lacks certain fields](https://github.com/onflow/flow-evm-gateway/issues/440)
- [Fix calculation of `gasUsed` field returned on block endpoints](https://github.com/onflow/flow-evm-gateway/pull/444)
- Improvement
- [Refactor bootstrap to make it modular](https://github.com/onflow/flow-evm-gateway/pull/481)
- [Make engine restart logic more resilient](https://github.com/onflow/flow-evm-gateway/issues/85)
- [Decode legacy block event](https://github.com/onflow/flow-evm-gateway/pull/475)
- [Decode legacy receipts](https://github.com/onflow/flow-evm-gateway/pull/474)
- [Refactor receipt model](https://github.com/onflow/flow-evm-gateway/pull/473)
- [eth_coinbase should reflect the actual coinbase being used on EVM.run](https://github.com/onflow/flow-evm-gateway/issues/490)
- [Patch block RLP decoding to handle addition of PrevRandao field](https://github.com/onflow/flow-evm-gateway/pull/472)
- [Optimize traces engine to handle empty blocks](https://github.com/onflow/flow-evm-gateway/issues/464)
- [Empty miner field on eth_getBlockByNumber](https://github.com/onflow/flow-evm-gateway/issues/454)
- [Enrich the information contained in error messages](https://github.com/onflow/flow-evm-gateway/pull/453)
- Monitoring
- [Monitor operator balance](https://github.com/onflow/flow-evm-gateway/pull/487)
- fixing index after TN HCU
- [Revert "Decode legacy receipts"](https://github.com/onflow/flow-evm-gateway/pull/485)
- Minor fixes and improvements
- [Validate gas price in config](https://github.com/onflow/flow-evm-gateway/pull/494)
- [fix metric balance initialization](https://github.com/onflow/flow-evm-gateway/pull/493)
- [Wait for sigint signal](https://github.com/onflow/flow-evm-gateway/pull/492)
- Docs
- [Update running docs](https://github.com/onflow/flow-evm-gateway/pull/484)

**This sprint**

- Objective 1, KR5: Mainnet Upgrade to Crescendo Release
- Investigate and fix any high/critical severity issues reported on Crescendo on TN ([Crescendo launch on Mainnet tasklist](https://github.com/onflow/cadence/issues/2642))
- [Create util command to check storage health of execution state](https://github.com/onflow/flow-go/issues/6350)
- Continue: [Provide immutable settings for each CCF format](https://github.com/onflow/cadence/issues/3448)
- Investigate / Fix any security report incoming from bug bounty.

- Objective 2, KR 1: Update transaction fees weights for the execution operations on TN and MN
- Continue work on [Execution Effort Calibration](https://github.com/onflow/flow-go/issues/5598)

- Cadence Execution
- Continue: [Add support for storage health check of EVM registers](https://github.com/onflow/flow-go/issues/6393)
- Continue: [Provide immutable settings for each CCF format](https://github.com/onflow/cadence/issues/3448)

- EVM
- Continue monitoring EVM GW stability
- Start work on [local state index](https://github.com/onflow/flow-evm-gateway/issues/322)
- Continue work on [local state index](https://github.com/onflow/flow-evm-gateway/issues/322)
- KROK
- EVM Gateway benchmarking

- EVM Gateway
- continue work on [Metrics](https://github.com/onflow/flow-evm-gateway/issues/125) and [Benchmarking](https://github.com/onflow/flow-evm-gateway/issues/19)
- continue work on [Benchmarking](https://github.com/onflow/flow-evm-gateway/issues/19)

- Badger -> Pebble Investigation/POC
- Continue evaluation of [Protocol State Migration POC](https://github.com/onflow/flow-go/issues/6137) & schedule design discussion
- Continue work on [Protocol State Migration POC](https://github.com/onflow/flow-go/issues/6137) -> changing interface to batch write from transaction to make the future switch to Pebble easier.

**Completed OKRs**
* Objective 1, KR1: Enable Developers and the Flow Foundation to simulate Cadence 1.0 Contract upgrades
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