Alephium COO Discusses Danube Network Upgrade
Alephium COO Discusses Danube Network Upgrade
🔥 Danube's Final Countdown

Alephium's COO Maud Bannwart appeared in a French YouTube interview to discuss the upcoming Danube network upgrade, launching July 15th on Mainnet. The upgrade introduces significant improvements including 8-second blocks, 20,000+ TPS, groupless addresses, chained transactions, and passkey support. Development teams have completed wallet support for groupless addresses and chained transactions across desktop, mobile and extension platforms. Node operators must upgrade to v4.0.0 before the launch date. The upgrade aims to enhance user experience and bridge gaps in Web3 functionality.
🛠️ Weekly Dev Update 🔥 TL;DR: Danube in intense feedback loop phase - Branding efforts intensifie - Ambassador program last call! 🚨 ⚙️ Backend & Infra Full Node - Add a command line tool to replay transaction script - Fix the InvalidAlphBalance issue in Ralph - Added
Today’s deep dive: Chained Transactions, the Danube upgrade feature that lets you perform multi-step dApp actions in a single transaction, like swapping A → B → C — all in one go, and how it benefits both users and devs alike ↓
🔥 Creators, this is your moment. Alephium’s biggest upgrade yet is coming, and we’re calling on the community to help spread the word. The Alephium Creator Sprint is coming. 30,000 $ALPH . 30 days. 20 spots. Apply now! 👇 📝 docs.google.com/forms/d/e/1FAI…
🛠️ Weekly Dev Update 🔥 TL;DR ⚡ Danube is coming on testnet! ⚡ ⚙️ Backend & Infra Full Node 👾 - Improve test contract endpoint to better support unit testing - Fix the tool to replay blockflow, used for testing Danube upgrade - Work with websocket support - Support
⚙️Weekly #DevUpdate! 🛠 TL;DR -✨ Mobile Wallet v2.2.0 released ✦ Completed support for Groupless Addresses in Desktop, Mobile & Extension Wallets and for Chained Transactions in Desktop & Mobile Wallets ✨ Frontend Team 🖥️ Desktop Wallet ✦ Completed support for Groupless
In our previous Danube thread, we explored Groupless Addresses. Today’s deep dive: 8-second block time, the upgrade that halves confirmation times. ↓ x.com/alephium/statu…
Last week was the overview. Today we dive into Groupless Addresses, the change that lets one address talk to every group on Alephium.
🛠️ Weekly Dev Update 🔥 TL;DR: Danube testing going strong - Branding brainstorm - Ambassador program reopens! ⚙️ Backend & Infra Full Node - Danube - Improve Groupless Address Endpoint - Charge dust amount automatically - Fix a devnet mining issue after the blockflow
⚙️ Weekly #DevUpdate! 🛠 TL;DR – 🌸 Website light-theme support underway ✦ Groupless-address support progressing across Explorer and Wallets ✦ Mobile Wallet UX & stability enhancements 🌸 Front End Team 📱 Mobile Wallet ✦ Fixed React rules linter issues in modals ✦
🛠️ Weekly Dev Update – Danube Launch Edition 🔥 TL;DR ⚡ Danube now LIVE on testnet ‖ Website & branding locked for launch ‖ New Danube-themed content funnels in motion ⚡ ───────────────────────── ⚙️ Backend & Infra 👾 Full Node - 🎉 Released
⚙️ Weekly #DevUpdate! 🛠 TL;DR - 🌸 Groupless-address support across the stack ✦ Danube testnet and DevX improvements continue 🌸 Front End Team 📱 Mobile Wallet ✦ Fixed and polished bottom-sheet modals ✦ Reviewed and debugged flows after architecture change 🖥️ Desktop ✦
🛠️ Weekly Dev Update - Special Danube Edition 🔥 TL;DR: Danube is on Devnet ⚡️ The Little Ralph Book is here ⚙️ Backend & Infra 🚨 Danube Devnet is out! Try it today & give us feedback - x.com/wachmc/status/… 🏁 Full Danube rundown - x.com/wachmc/status/… Full node -
GM $ALPH community. I've summarized the key Danube changes in the GitHub repository: github.com/alephium/aleph…. If you have other feature requests, please comment on GitHub and we'll consider adding them if they make sense for Danube. Bigger features will be saved for future
🎥 Media Minute Alephium's COO @MaudBannwart in conversation with @CoinTribuneFR in 🇫🇷French on YouTube 💬“Danube is currently live on Testnet and launches on Mainnet on July 15. This upgrade will significantly enhance the Alephium user experience. It bridges the gap between
⚙️ Weekly #DevUpdate! 🛠 TL;DR - ✨ Launched Alephium wallet dapp provider for smoother Mobile Wallet connections ✦ Explorer and Website refinements ✦ Infrastructure migration complete ✨ Front End Team 📱 Mobile Wallet ✦ Created @alephium/wallet-dapp-provider to improve
🚨 Public Danube Devnet is live 🚨 That went fast (and it is fast). Come as you are, test it for yourself - and give us feedback!
We did it - the public devnet release for Danube Upgrade is out. All features are implemented with high test coverage. You can quickly set it up with these Docker configs: github.com/alephium/aleph… Next month, we're launching it on @Alephium testnet!
🛠️ Weekly Dev Update 🔥 TL;DR: New features - New website - New Ambassadors - It's spring! ⚙️ Backend & Infra Full Node 👾 - Fix issues when using asset from newly created contract - Update lockApprovedAsset! built-in function such that it can lock assets to any asset
⚙️ Weekly #DevUpdate! 🛠 TL;DR - ✨ Danube Mainnet v4.0.0 node upgrade is live, update your nodes! ✦ Mobile Wallet dApp provider enters beta ✦ Groupless Address integration advances ✨ Front End Team 📱 Mobile Wallet ✦ Completed initial phase of the injected wallet dApp
🛠️ Weekly Dev Update 🔥 ⚙️ Backend & Infra Full Node 👾 - Review and address comments for Ralph unit test feature - Make existing transaction endpoint compatible with groupless address instead of having groupless address specific endpoints Explorer Backend ◀️ - Add consensus
Last week was the overview. Today we dive into Groupless Addresses, the change that lets one address talk to every group on Alephium.
Alephium’s next network upgrade, Danube, is nearly here, taking us one step closer to the true Web3 experience. We’re making Alephium and its ecosystem more accessible, usable, and ready for everyone. Danube is the beginning of a new era for Alephium: delivering the Web3 you
📢Get ready for #Danube! Don’t forget to upgrade your Node to v4.0.0 before Danube Mainnet goes live on July 15 2025 at 12:00 GMT+02:00. 📡Download the release here: github.com/alephium/aleph… 📚For step by step instructions on how to upgrade, please refer to our documentation:
⚙️ Weekly Dev Update TL;DR: Website & blog migration, performance improvements for large wallets, API & storage fixes, Ledger SDK upgrade, and first version of "Build Smart Contract in Ralph"! 🔧 Backend Updates - Reviewed Groupless Address PR (#Danube). - Reviewed Passkey
Danube network upgrade goes live in 2 weeks on July 15 2025 at 12:00 GMT+02:00 📚Explore every #Danube resource in our Content Repo docs.alephium.org/misc/Content/#… Here’s some spotlighted content ⬇️ $ALPH
⚙️ Weekly #DevUpdate! 🛠 TL;DR - ✨ New releases across Desktop, Explorer & Mobile ✦ Enhanced dApp integration & UI polish ✦ iOS26 compatibility & performance optimizations ✨ Front End Team 🖥️ Desktop Wallet ✦ Released v3.0.2 🔍 Explorer ✦ Released v1.10.14 📱 Mobile
✨Simplified Smart Contracts & Smarter Developer Tools📝 Danube’s latest developer focused upgrade unlocks new contract patterns and enhances tooling. Alephium’s developer experience has always prioritized safety. Danube takes this further by streamlining contract development,
⚙️ Weekly Dev Update TL;DR: Danube intensifies ⚡ Website redesign loading ▰▰▰▰▰▰▰▱▱▱ 🛠️ Backend & Infra Danube / Full Node - Review the AccountView PR to make sure we always account for the lastest blocks after the optimization for Blockflow algorithm - Review and
⚙️ Weekly #DevUpdate! 🛠 TL;DR – 🌸 Mobile Wallet direct dApp connection alternative to WalletConnect ✦ Website build stability & design polish ✦ Full Node & Explorer API enhancements 🌸 Front End Team 📱 Mobile Wallet ✦ Significantly progressed integration of a direct dApp
⚙️ Weekly #DevUpdate! 🛠 TL;DR - 🌸New website design and UI live ✦ Ongoing network upgrade testing ✦ Front-end and back-end improvements rolled out 🌸 Front End Team 🌐 Website ✦ Final polish and content updates ✦ Went live with the new design and UI 📱 Mobile Wallet ✦
The Danube upgrade brings Alephium one step closer to the Web3 experience developers and users deserve: 🔄Chained Transactions ⚡️8s blocks |🚀20,000+ TPS 🔓Passkeys & more! We’re excited to join @HouseofChimera on May 23 to talk about what Danube means for smart contracts, UX,
Is @alephium the next-gen Proof-Of-Work Chain? 🔹PoW chains are gaining momentum: @KaspaCurrency, @QuaiNetwork, and more 🔸@MaudBannwart joins us to unpack Alephium’s unique sharded PoW design, stateful UTXO model & more 🗓️ May 23 | 🕓 4PM UTC 🎙️ x.com/i/spaces/1nAKE…
📢Notice for Miners and Pool Operators⛏️ If your pool was previously running on a Node version below 3.6.0 and hasn’t yet updated its mining logic, you’ll also need to update your pool code to reflect breaking changes introduced in version 3.6.0. If you were already on 3.6.0+
Alephium’s next network upgrade, Danube, is nearly here, taking us one step closer to the true Web3 experience. We’re making Alephium and its ecosystem more accessible, usable, and ready for everyone. Danube is the beginning of a new era for Alephium: delivering the Web3 you
DIA Oracle Grants and Mainnet Staking Launch

DIA Oracle has launched its Grants program and Mainnet staking functionality, marking a significant development in blockchain infrastructure. Alephium is participating in this initiative aimed at supporting developers and accelerating dApp innovation. This follows DIA's recent Lumina mainnet launch, which introduced fully on-chain, verifiable oracle capabilities. - Grants program now active - Mainnet staking operational - Supporting next-gen dApp development Developers can now apply for grants and participate in the staking program.
Alephium's Danube Upgrade Enhances Smart Contract Development
Alephium's latest Danube upgrade introduces significant improvements to smart contract development: - **Chained Contract Calls**: Enables multi-step transactions like A→B→C swaps in one TX - **Auto-handling** of dust amounts and deposits, reducing boilerplate code - **Enhanced Security** with new caller identification functions - **Improved Developer Tools** including unit testing in Ralph The upgrade maintains UTXO security while enabling greater composability and cleaner DeFi workflows. Developers can now build more complex dApps with less code and lower risk of bugs. [Learn more about Danube features](https://docs.alephium.org/ralph/danube-features/)
BlockFlow Algorithm Optimization Reduces CPU Usage on Testnet
Key development updates from the Alephium team: - **Backend Improvements**: New BlockFlow algorithm implementation reduces high CPU usage on testnet through enhanced mining job handling - **Infrastructure Updates**: Testnet explorer backend successfully migrated to match mainnet specifications - **Wallet Development**: - Desktop Wallet v3.0 in final testing phase with new stackable notifications - Mobile Wallet v2.1.2 awaiting Apple approval, v2.1.3 available on TestFlight - Website CMS evaluation ongoing with multiple options under review Documentation expanded to include third-party contract interaction guides. ESLint configurations improved across projects.
Mobile Wallet Battery & Data Usage Improvements Released

**Key Updates This Week:** - Mobile wallet optimizations include reduced battery drain and data usage, with auto-download disabled for large NFT files - Desktop wallet received UX improvements with better tab navigation and new token activity features - Design team started work on new brand identity and logo refresh - Backend improvements include BlockFlow optimization tests and sync v2 restrictions to testnet nodes - Infrastructure team successfully tested sync v2 in isolated testnet environment *Technical improvements focus on performance and user experience across all platforms.*