BTC ⇄ rBTC bridging on Rootstock just became more robust, transparent, and institutional-ready.
With the release of PowPeg App v3.3 and Flyover v2.4, Rootstock is rolling out key infrastructure upgrades designed to support higher-volume users, liquidity providers, and treasury-grade operations, all while keeping the experience seamless for everyone.
This release focuses on what matters most at scale: reliability, clarity, and control across Bitcoin bridging.
Let’s take a closer look at the updates and why they matter.
Improved Wallet Connectivity with Reown SDK
Smoother, More Reliable BTC Transaction Signing
PowPeg App v3.3 integrates the latest Reown AppKit SDK v1.8.10, delivering meaningful improvements to Bitcoin transaction signing throughout the bridging flow.
Why this matters
- More reliable wallet signing behavior
- Fewer interruptions during peg-in and peg-out flows
- Improved interoperability across supported wallets
For users managing frequent or higher-value BTC transactions, this translates to a more predictable and resilient bridging experience.
Bridging Larger Amounts? Now You’re Never Blocked
Liquidity-Aware UX for Fast Mode (Flyover)
Fast Mode (powered by Flyover) is designed for speed, but large transfers can sometimes exceed available liquidity.
With PowPeg App v3.3, if your requested amount goes beyond current Fast Mode liquidity, you’ll now see a direct “Contact Us” option in the UI.
What this unlocks
- Immediate support for high-value BTC ⇄ rBTC transfers
- Direct coordination for institutional or treasury-sized amounts
- No guesswork or stalled transactions due to liquidity limits
Need to bridge more than what’s available in Fast Mode? We’ve got you covered.
Flyover v2.4 Integration
More Accurate Quotes + Max Button Restored
We’ve fully integrated Flyover v2.4, bringing important improvements to fee calculation and usability.
What’s improved
- More accurate quotes thanks to enhanced fee logic
- Max button restored, allowing users to bridge the maximum available amount in their wallet
The result
- Clearer cost expectations
- Faster decision-making
- No need to manually calculate balances
Small details, but big wins for usability and trust.
Phase 2 of Flyover LP Financial APIs
Deeper Visibility for Liquidity Providers
This release also unlocks Phase 2 of the Flyover LP Financial APIs, giving liquidity providers better insight into how the bridge is being used.
LPs now benefit from:
- Enhanced revenue visibility
- Clearer usage metrics
- Improved reconciliation and reporting capabilities
These upgrades are a key step toward institutional-grade financial transparency for Flyover LPs.
Strengthening Bitcoin Layer 2 Infrastructure
Together, PowPeg App v3.3 and Flyover v2.4 make Rootstock’s BTC bridging infrastructure more capable of supporting institutional flows, advanced treasury use cases, and professional liquidity operations, without compromising decentralization or Bitcoin security.
This is another step toward a programmable, Bitcoin-secured financial system that works at scale.
Get Started
- Try PowPeg App v3.3
Bridge BTC to rBTC in minutes → https://powpeg.rootstock.io/ - Integrate Flyover
Explore the Flyover SDK → https://github.com/rsksmart/flyover-sdk
Become a Flyover LP
Join the network and earn fees → https://github.com/rsksmart/liquidity-provider-server


