Skip to content
Back to Blog
Ecosystem Updates

Papyrus Release v2.2.0 Is Here

Read Time: 1 mins
Leer en español
Papyrus Release v2.2.0 Is Here

We’re pleased to announce that a new RSK Papyrus release has been published in our Github repo. This release contains relevant improvements from community feedback. Thanks to all RSK buidlers for your contributions!

This is a summary of the changes included in this version:

  • Add Content-Type field in JSON RPC responses (#1390)
  • Consider minimum gas price in eth_gasPrice method (#1389)
  • On-the-fly block blooms cache for faster events retrieval (#1384)
  • Fix v value in JSON RPC transaction result (#1382)

You can find a complete list of the changes introduced in Papyrus 2.2.0 milestone. Version 2.2.0 release’s sha256 sum is f7cb1e6c5568332d047c602a5b2c464c41688336b824d92ef3a40b89a8f55b60 rskj-core-2.2.0-PAPYRUS-all.jar. See Reproducible Build guide for further details.

Do you have further questions?

Please contact us through our 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:

Twitter: https://twitter.com/RSKsmart

Telegram: https://t.me/RSKsmart

Reddit: https://www.reddit.com/r/rootstock/

BitcoinTalk: https://bitcointalk.org/index.php?topic=3189777.0

If you are new to RSK and smart contracts development, you may want to check our developer portal to find out how to start working on the RSK platform.

Thanks for your support!

Recommended articles

Rootstock x Bitcoin: Merged Mining Insights Report Q3 2025

Rootstock x Bitcoin: Merged Mining Insights Report Q3 2025

This report is presented by RootstockLabs, a key contributor to the growth of the Rootstock ecosystem. At Rootstocklabs, we strive to empower the community by offering transparent insights into merged mining dynamics through quarterly hashrate reports dedicated to Rootstock. Our goal is to enhance comprehension with user-friendly visuals such as tables and graphs, ensuring better […]

Ecosystem Updates
Rootstock Explorer v3.5.0 Is Live

Rootstock Explorer v3.5.0 Is Live

Rootstock Explorer v3.5.0 is now live, bringing fresh upgrades across contract verification, search, code exploration, and transaction insights. These latest developments make the explorer faster, clearer, and more developer-friendly. All developments are open source. You can contribute your own updates to Rootstock by visiting Github or participating in the Hacktivator program. This release expands contract […]

Ecosystem Updates
Merged Mining in Action: Bridging Secured by Miners, Not Just Signers

Merged Mining in Action: Bridging Secured by Miners, Not Just Signers

Most people evaluate Bitcoin bridges with a simple shortcut: is it a federation, or is it a validator model? In that mental model, a federation bridge is a multisig controlled by a set of known parties. A validator model is a separate group that watches one chain and attests to actions on another. Both categories […]

Fundamentals