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Cadence wg update #1465

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May 24, 2024
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Cadence wg update #1465

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Cadence wg update
j1010001 May 24, 2024
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fix formatting
j1010001 May 24, 2024
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123 changes: 114 additions & 9 deletions agendas/2024/sprint-kickoff/2024-05-24-Flow-Sprint-Kickoff.md
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### Team Wins 🎉

-
- [EVM FLIP](https://github.com/onflow/flips/pull/272) is approved and accepted.
- Crescendo state migration on MN state reduced from ~37 to ~5 hours total migration time
- Successfully deployed Crescendo readiness audit on Testnet - execution mode where transactions importing unstaged contracts fail with error message linking to upcoming Crescendo release.
- Released all Cadence language breaking changes in both flow-go release used for migration and CLI.
- Deployed new execution node ingestion engine to Mainnet (enabled on one EN) and so far running successfully for the last ~2 weeks. This enables us to boot EN anywhere in the spork and it will catch up, while previously it would crash if it was too far behind.
- Successfully upgraded previewnet to latest flow-go master and got EVM working End-End.
- Successfully got the EVM Gateway working on Migration environment.


### General updates

Expand Down Expand Up @@ -79,27 +86,125 @@ Cycle Objective(s):

**Done last sprint**

State migration for Crescendo release

- Optimizatins
- [Add Payload.Address() to allow migrations, etc. to reduce overhead](https://github.com/onflow/flow-go/pull/5948)
- [Disable spock proof generation for migrations](https://github.com/onflow/flow-go/pull/5920)
- [Use faster atree funcs to speedup Cadence 1.0 migration](https://github.com/onflow/flow-go/pull/5916)
- [Add Storage.NondeterministicCommit for faster migrations](https://github.com/onflow/cadence/pull/3348)
- [Optimize creation of new payloads](https://github.com/onflow/flow-go/pull/5914)
- [Optimize Cadence v0.42 + atree inlining migration](https://github.com/onflow/flow-go/pull/5913)
- [Optimize the Cadence 1.0 migration](https://github.com/onflow/flow-go/pull/5897)
- [Improve scheduling in account-based migration](https://github.com/onflow/flow-go/pull/5901)
- Atree - [Add NonderterministicFastCommit to speed up migrations when ordering isn't required](https://github.com/onflow/atree/pull/403)
- Atree - [Add BatchPreload to decode slabs in parallel and cache](https://github.com/onflow/atree/pull/404)
- Updates
- [Update or deploy EVM contract, depending on chain](https://github.com/onflow/flow-go/pull/5915)
- [Include NFTStorefrontV2 in the testnet migrations](https://github.com/onflow/flow-go/issues/5963)
- [Stage contract update for NFTStorefrontV2 on Testnet](https://github.com/onflow/flow-go/pull/5964)
-Bugfixes
- [Fix string formatting for values](https://github.com/onflow/cadence/pull/3370)
- [Handle missing interfaces in Cadence 1.0 contract update validator](https://github.com/onflow/cadence/pull/3337)
- [Fix Cadence 1.0 migration error when address is used as register owner](https://github.com/onflow/flow-go/pull/5929)
- [Gracefully recover from panics encountered during contract update validation](https://github.com/onflow/flow-go/pull/5935)
- [Allow export of global registers (owner is empty string)](https://github.com/onflow/flow-go/pull/5939)
- Testing
- [Test registers data structure](https://github.com/onflow/flow-go/pull/5949)

Cadence Language

- Improvement
- Language breaking change: [Return a copy for enum-typed members, during member-access via references](https://github.com/onflow/cadence/pull/3357)
- [Allow construction of paths with syntactically invalid identifiers](https://github.com/onflow/cadence/pull/3338)
- [Add invalidation for storage references](https://github.com/onflow/cadence/pull/3343)
- Security Improvements
- Language breaking change: [Resource methods can be separated/moved-around as a function pointer](https://github.com/dapperlabs/cadence-internal/issues/213)
- Language breaking change: [Moving of contract and transaction variable is not statically rejected](https://github.com/dapperlabs/cadence-internal/issues/217)
- Bugfix
- [Fix restricted type checking in contract-update-validator](https://github.com/onflow/cadence/pull/3352)
- [Check dictionary keys when checking the ability for dereferencing](https://github.com/onflow/cadence/pull/3339)
- [Wrap host-function typed member-values with a bound-function](https://github.com/onflow/cadence/pull/3342)
- Docs
- [Update section about validator entitlement computation](https://github.com/onflow/cadence-lang.org/pull/104)
- Testing
- [Add back transaction execute tests](https://github.com/onflow/cadence/pull/3345)

Cadence Execution

- [Transaction audit / failure mode for missing staged contract](https://github.com/onflow/flow-go/issues/5858)
- [Add a dependency check for cadence imports](https://github.com/onflow/flow-go/pull/5908)
- bugfixes
- [Fix comparison of payload addresses, handle empty address](https://github.com/onflow/flow-go/pull/5942)
- [Fix FVM call to checkDependencies](https://github.com/onflow/flow-go/pull/5957)
- Unstaked Execution node (EN testing)
- [Add get full collection by id api](https://github.com/onflow/flow/pull/1463)
- New Ingestion engine
- [Add ingestion core tests](https://github.com/onflow/flow-go/pull/5871)
- Improvements
- Atree: [Allow detection and logging on mutation of elements returned by readonly iterators](https://github.com/onflow/atree/issues/409)
- [Fix missing mock generation](https://github.com/onflow/flow-go/pull/5928)
- [move FlowClient to grpcclient package](https://github.com/onflow/flow-go/pull/5962)
- Bugfixes
- Long running bug causing execution to stall [Fix requester engine's optimization](https://github.com/onflow/flow-go/pull/5941)
- [Fix get highest executed and finalized height](https://github.com/onflow/flow-go/pull/5903)
- [Fix Util to find execution result mismatch](https://github.com/onflow/flow-go/pull/5890)
- chores
- Spork/HCU prep: [1](https://github.com/onflow/flow-go/pull/5895), [2](https://github.com/onflow/flow-go/pull/5896), [3](https://github.com/onflow/flow-go/pull/5889), [4](https://github.com/onflow/flow-go/pull/5940)
- Dependency updates
- Cadence: [1](https://github.com/onflow/cadence/pull/3344), [2](https://github.com/onflow/cadence/pull/3346), [3](https://github.com/onflow/cadence/pull/3347), [4](https://github.com/onflow/cadence/pull/3351), [5](https://github.com/onflow/cadence/pull/3359), [6](https://github.com/onflow/cadence/pull/3364), [7](https://github.com/onflow/cadence/pull/3365)
- flow-go: [1](https://github.com/onflow/flow-go/pull/5921), [2](https://github.com/onflow/flow-go/pull/5925), [3](https://github.com/onflow/flow-go/pull/5926), [4](https://github.com/onflow/flow-go/pull/5930), [5](https://github.com/onflow/flow-go/pull/5931), [6](https://github.com/onflow/flow-go/pull/5946), [7](https://github.com/onflow/flow-go/pull/5950), [8](https://github.com/onflow/flow-go/pull/5965), [9](https://github.com/onflow/flow-go/pull/5966)
- flow-go-sdk: [1](https://github.com/onflow/flow-go-sdk/pull/653), [2](https://github.com/onflow/flow-go-sdk/pull/654), [3](https://github.com/onflow/flow-go-sdk/pull/655)
- cadence tools: [1](https://github.com/onflow/cadence-tools/pull/369), [2](https://github.com/onflow/cadence-tools/pull/370), [3](https://github.com/onflow/cadence-tools/pull/371)
- emulator: [1](https://github.com/onflow/flow-emulator/pull/678)
- flowkit: [1](https://github.com/onflow/flowkit/pull/51)
- flixkit-go: [1](https://github.com/onflow/flixkit-go/pull/66)
- evm-gw: [1](https://github.com/onflow/flow-evm-gateway/pull/252)
- CLI: [1](https://github.com/onflow/flow-cli/pull/1608)

EVM Gateway

- Features
- [Handle cross-spork access](https://github.com/onflow/flow-evm-gateway/issues/229)
- [Multi-spork client access support](https://github.com/onflow/flow-evm-gateway/pull/230)
- Hardening / Improvements
- [Multi-key account creation process improvements](https://github.com/onflow/flow-evm-gateway/pull/249)
- [Improve event testing](https://github.com/onflow/flow-evm-gateway/pull/240)
- [Improve crash reporting](https://github.com/onflow/flow-evm-gateway/issues/236)
- bugfix
- [Fix decoding blocks with no total gas used](https://github.com/onflow/flow-go/pull/5872)
- Ops chores
- [1](https://github.com/dapperlabs/dapper-flow-hosting/pull/1500), [2](https://github.com/onflow/flow-evm-gateway/pull/255), [3](https://github.com/onflow/flow-evm-gateway/pull/257), [4](https://github.com/onflow/flow-evm-gateway/pull/258)

EVM Core

- [Add support for revertible random](https://github.com/onflow/flow-go/issues/5862)
- Hardening / Improvements
- [Use hex-encoded address as event values for better readability](https://github.com/onflow/flow-go/issues/5911)
- [Support decoding of all previous block types](https://github.com/onflow/flow-go/pull/5875)
- Bugfix
- [EVM.dryRun method inconsistent behavior for certain errors](https://github.com/onflow/flow-go/issues/5902)

**This sprint**

Objective 1, KR 1: Enable Developers and the Flow Foundation to simulate Cadence 1.0 Contract upgrades
* All breaking changed released in a new CLI: v1.18.0-cadence-v1.0.0-preview.23
DONE: Objective 1, KR 1: Enable Developers and the Flow Foundation to simulate Cadence 1.0 Contract upgrades
* All breaking changed released in a new CLI: v1.18.0-cadence-v1.0.0-preview.24

Objective 1, KR4: Testnet Upgrade to Crescendo Release
IN PROGRESS: Objective 1, KR4: Testnet Upgrade to Crescendo Release
* Completed Testnet migration with both Atree inlining and Cadence 1.0.
* Completed [EVM Gateway development](https://github.com/onflow/flow-evm-gateway/issues/126) and [EVM Core development](https://github.com/onflow/flow-go/issues/5536) production readiness EPICs.
* Continue work on migration optimizations.

Objective 2, KR 1: Update transaction fees weights for the execution operations on TN and MN
IN PROGRESS: 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)

Objective 4, KR1: Execution node handles restart from spork root block reguardless of how many blocks it is behind
* Continue refactoring of Ingestion engine to [prevent EN entering crash loop](https://github.com/onflow/flow-go/issues/5298)
DONE: Objective 4, KR1: Execution node handles restart from spork root block reguardless of how many blocks it is behind
* Completed refactoring of Ingestion engine to [prevent EN entering crash loop](https://github.com/onflow/flow-go/issues/5298)

Objective 3: Analyze execution runtime trends and risks to plan next set of scalability OKRs
ON HOLD: Objective 3: Analyze execution runtime trends and risks to plan next set of scalability OKRs
* Continue work on making [Make TPS loader input more flexible](https://github.com/onflow/flow-go/issues/5490) for better analysis and tracking of performance data.

* Start Atree optimization: [Adding support for lazy decoding of registers](https://github.com/onflow/atree/issues/341)
ON HOLD: * Start Atree optimization: [Adding support for lazy decoding of registers](https://github.com/onflow/atree/issues/341)

Cadence 1.0 Contract updates
- [Continue working through contract standards needing upgrade to C1.0](https://github.com/onflow/docs/issues/716)
Expand Down
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