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@github-actions github-actions released this 15 Aug 09:18
· 20 commits to main since this release
v7.5.0
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fxCore v7.5.0 Release Notes

🕐 Timeline

This is a mandatory upgrade for all validators and full node operators.
The upgrade height is 16838000, which is approx. August 17st 2024, 12:00 UTC.

🚀 Highlights

Enhancements and New Features

  • Support for Solidity Contract Bridge Call: Added functionality to enable bridge calls to Solidity contracts, enhancing interoperability across different blockchain networks.
  • Automatic Refund and bridgeCallback Interface: Introduced automatic refund mechanisms and the bridgeCallback interface to improve the efficiency and reliability of bridge transactions.
  • Pre-compiled Contracts Bridge Call: Enabled support for pre-compiled contracts to perform bridge calls, facilitating smoother and more efficient crosschain operations.
  • IBC Bridge Call to fxCore-EVM: Added support for IBC bridge calls to fxCore-EVM, expanding crosschain communication capabilities.
  • Pending Pool for Low Liquidity: Implemented a system to add crosschain requests to a pending pool when liquidity is low, ensuring transaction reliability even under constrained conditions.
  • Added fxcored export-delegates Command: This feature allows users to export all delegation records from the blockchain, excluding contract delegations.
  • Precompiled Staking v2 Contract: Introduced a new precompiled staking v2 contract, with v1 version to be deprecated in future releases.
  • Updated Interface Contract: Required a minimum Solidity version of 0.8.10. Contracts using versions prior to 0.8.10 will encounter errors when retrieving bytecode.
  • Refactored Precompiled Contracts: Improved execution efficiency of precompiled contracts.
  • New Governance Proposals:
  • MsgUpdateStore: Added to facilitate proposals to modify store.
  • MsgUpdateSwitchParams: Added to facilitate the development of precompiled contracts or specific Cosmos transaction types.
  • Metrics for Crosschain Module: Introduced new metrics for the crosschain module.

Bug Fixes

  • Zero Gas Attack on EVM Transactions: Fixed an issue where EVM transactions could be exploited with zero gas, preventing potential denial-of-service attacks and ensuring network stability.
  • State Rollback Error in Precompiled Contracts: Fixed a state rollback error where the on-chain state was not fully reverted when using try-catch for contract rollback.
  • Subgraph Contract Status: Fixed an issue where the subgraph was not retrieving contract status in some cases.

Upgrades

  • cosmos-sdk: Bumped to v0.47.13.
  • cometbft: Bumped to v0.37.9.
  • ibc-go: Bumped to v7.6.0.

Removals

  • Legacy Rest API: Removed the legacy REST API.

Full Changelog: https://github.com/FunctionX/fx-core/commits/v7.5.0.

🔨 Build from source

git clone https://github.com/functionx/fx-core.git
cd fx-core && git checkout v7.5.0
make install

🐳 Docker Images

docker pull ghcr.io/functionx/fx-core:7.5.0
docker pull ghcr.io/functionx/fxcorevisor:7.5.0

⚡️ Download binaries

Binaries for linux, darwin, and windows are available below.

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