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RSK Hop 4.3.0 Is Here

Published on: 6 March, 2023

We are excited to unveil the latest version of the RSKj Hop client, now available in the RSKj GitHub repository. This update brings a host of crucial security improvements, including the activation of peer scoring and virtual gas features by default, and the adoption of the most recent stable versions of various libraries used by the client node, among other things.

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

What changes are included in RSK Hop 4.3.0?

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

  • Enabled transaction rate limiting and peer scoring features by default in #1960.
  • Upgraded dependencies to their latest stable versions in #1878, #1879, and #1883.
  • Added correlation id in executing logs in #1906.
  • Added constraints to payload JSON-RPC requests in #1914.
  • Performance enhancements in #1876.
  • Minor fixes in #1939, #1941, and #1947.

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

How do I upgrade to version 4.3.0?

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 4.3.0’s sha256 sum is 10553c20d2cffd4138eda56afa584a99019a903526da3e1de7029e8858f211af rskj-core-4.3.0-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 4.3.0. 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: