🚴 Fiber Dev Log 17🚴 In this sprint, much of the work went into tasks such as refactoring multi-hop cross-chain payments, single-funded channels, and performance improvements ☕🍵☕🍵 Some features are complex and security-sensitive, so extensive tests and audits are necessary 🛡️ Meanwhile, research continues on liquidity solutions, concurrent payment issues, and memory/CPU usage in large-scale tests. Progress is happening on Fiber Dashboard, profiling support, and networking metrics ✅ Checkout the dev log:

GitHub

Fiber Dev Log 2025-10-30 · nervosnetwork/fiber · Discussion #940

Updates Features Fiber Dashboard Updated the frontend of fiber-dashboard nervosnetwork/fiber-dashboard#13 Added support for bearer auth in fiber-da...

By the way, we've heard the community wondering what's going on with Fiber. More details coming soon.

🚴 Fiber Dev Log 15 🚴 Hey folks, here's what we've been working on over the past two weeks: - Cross-chain multi-hop payments are now completed. - Atomic multi-path payments (AMP) are fully designed and implemented. AMP improves on the current MPP (multi-path payments), where all shards share the same payment hash, making individual paths easy to correlate and prone to partial settlement. With AMP, a payment either settles in full or not at all, even when routed across multiple paths. - Fiber Dashboard APIs now let you monitor the full lifecycle of channels. For ongoing work, we're exploring liquidity solutions, analyzing payment scenarios, and investigating long-running tasks in Fiber's actor model using metrics. Also extending support for new contracts and continuing to track down other performance bottlenecks. The full log:

GitHub

Fiber Dev Log 2025-10-02 · nervosnetwork/fiber · Discussion #920

Updates Features Cross-chain multi-hops payment completed: #898, #901 Completed the design and implementation of Atomic Multi-Path Payments (AMP) t...

What is Fiber and Why Does It Matter? 👇 1/ What is Fiber Fiber is a privacy-by-default, scalable network for fast, low-cost payments and swaps between digital assets. Aligned with Bitcoin’s principles, Fiber connects peers decentrally, ensuring security and efficiency without external consensus or centralized validation. 2/ What makes Fiber different? - Beyond channel network like Lightning, Fiber natively supports stable-coin payment and assets swap, unlocking new Bitcoin-based financial use cases. - Unlike sidechains and rollups, Fiber is not a chain. It scales off-chain with Bitcoin-aligned decentralization, privacy, and security, while achieving high efficiency without relying on external trust assumptions or complex cryptographic proofs. 3/ Why Fiber matters: - Bitcoin-aligned: Expands Bitcoin’s use cases while staying rooted in its decentralization principles. - Lightning-compatible: Works seamlessly with Lightning while adding flexibility and multi-asset support for payments & swaps. - Privacy-by-default & Efficient: No network-wide consensus; transactions are only visible to involved parties and settle quickly via direct peer-to-peer communication. 4/ Features rundown: - Multi-asset support: Supports stablecoins, RGB++ assets on the Bitcoin ledger, and UDT assets on CKB. - Ultra-low fees: Micropayments as small as 0.0001 cents, with fees as low as 0.00000001 cents. - Instant asset swaps: Swap any asset pair as long as a channel path is available. - Cross-network payments & swaps: Seamless transactions between the Lightning Network and Fiber. - Watchtower support: Helps node operators monitor and secure the network. - Multi-hop payments: Run a Fiber node and earn fees by facilitating payments. - Low latency: Transactions process with minimum delay (e.g., 20ms for 0.0001 cent payments). - High throughput: Transactions handled by involved peers without requiring network-wide consensus. - Enhanced privacy: Transactions are only visible to involved peers. - Advanced cryptography: Uses PTLC instead of HTLC for stronger security and privacy. - Composable with CKB Scripts: Integrates with other contracts and Scripts on CKB.

🚀 Fiber is live on mainnet! Fiber v0.4.0 marks the first-ever Mainnet deployment of the Fiber contract, with two bootnodes set up. An updated contract is also deployed on Testnet. ⚠️ Security audit in progress—start with small amounts when testing! This release includes multiple bug fixes and improvements. Check the full details & share your feedback:

GitHub

Release v0.4.0 · nervosnetwork/fiber

🚀 What's New Testnet: Deployed an updated version of fiber contract. Mainnet: First-time deployment of fiber contract on the mainnet, and set up...

Let’s scale P2P finance together! 💙