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RSK Hop 4.4.0 Is Here

Published on: 27 April, 2023

We are excited to unveil the latest version of the RSK Hop client, now available in the RSKj GitHub repository. This update brings performance enhancements, JSON RPC methods improvements, and Ethereum compatibility fixes, among other things.

Although this upgrade is not mandatory, we recommend that users upgrade their nodes to the latest version.

What changes are included in RSK Hop 4.4.0?

A non-comprehensive list of changes included in this version is:

  • Support named arguments in node’s CLI tools in #1893
  • Added JSON RPC timeouts & transaction gas cap limit validations in #1954
  • Improved eth_getLogs JSON RPC method performance in #1985
  • Enable cache.states.persist-snapshot setting by default in #1980
  • Included the type field in tx receipts and tx result responses for Ethereum libraries compatibility in #1984

You can find a complete list of the changes introduced in the corresponding GitHub milestone.

How do I upgrade to version 4.4.0?

There are no special considerations for upgrading to this version. Users need to download and update their RSKj node; no other task is required.

RSKj Hop 4.4.0’s sha256 sum is 10e82f9e4fc80487f0e0799c4082275c2360e243d12fd791cb5108a05a71f7f8 rskj-core-4.4.0-HOP-all.jar. See the reproducible builds guide for further details.

How do I report problems with this version?

It’s essential for us to know any problem you may have while running Hop 4.4.0. Please reach out on RSK Open Slack or by creating issues in the RSK GitHub repository.

How do I report security vulnerabilities?

If you find a security issue, please contact us at, or report it through IOVlabs’ bug bounty program. We reward security experts, software developers, and hackers who dedicate time and effort to improving and protecting the RSK platform.

Do you have further questions?

Please get in touch with us through our Rootstock Open Slack for technical questions and support.

You can also reach out with any feedback you would like to share with us through our social media channels and forums: