Ceyhun Onur 🔺
@jceyonur
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@AvaLabs | Opinions are my own, or I’m hacked.
Joined April 2012
Yesterday I had the chance to give an Avalanche 101 session at the @odtublockchain event. Less speculation. More consensus mechanics, sovereign L1s, custom VMs and real interoperability. Huge shout-outs to @koaservatt, @snowofkila and @AvaxTeam1 for organizing Team1 Uni Tour.
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Avalanche 101 is being presented by @jceyonur from @AvaLabs at @AvaxTeam1 UniTour#1 Middle East Technical University🔺
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Next stop is @odtublockchain 🔺 @jceyonur from @AvaLabs and @MrJustP from @bitget will make a presantation 🔥 Thanks to our partners; @dexalot and @pangolindex ❤️ See you at 26th of December🫡
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Some shots from @jceyonur's workshop during stop #1 on our Turkiye University tour 🇹🇷 Great session for computer engineering students with a hands-on session on Avalanche fundamentals & node setup 2 Universities down, 8 to go... @koaservatt @dexalot @pangolindex @bitgetturkey
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🔺 I’m genuinely excited for the event we’ll hold on Tuesday at Bilgi University, November 25th with @_burcusan_ 's class. We are looking forward to welcoming @jceyonur from the @AvaLabs developer team, who will join us to teach node setup to the students and share the
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I've seen a few discussions about ACP-226 and block times around the Granite activation, and want to add some clarity. 🧵
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The Mainnet release for the Avalanche Granite upgrade has been published. The Mainnet activation is scheduled for November 19th, 2025 @ 11am ET / 3pm UTC. All Mainnet node operators must upgrade to v1.14 before the scheduled activation time 👇
build.avax.network
The Avalanche Granite upgrade activates on Fuji Testnet on October 29th, 2025, bringing major improvements including P-Chain epoched views for ICM, secp256r1 support for biometric authentication, and...
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Subnet-EVM v0.8.0-fuji is just released!🚀 ⏳Granite upgrade activates on Fuji testnet Wed, Oct 29, 2025, 15:00 UTC. ⚠️All Fuji nodes must upgrade before the activation time. 🔍You can find more information about Granite in this blog post: https://t.co/t5BfPrvf8u 🚧 Plugin
build.avax.network
The Avalanche Granite upgrade activates on Fuji Testnet on October 29th, 2025, bringing major improvements including P-Chain epoched views for ICM, secp256r1 support for biometric authentication, and...
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Five years. Five years of growth. Innovation. Community. Thanks to you. And it's only just begun.
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Introducing the public beta of the new Avalanche JS SDK. Your all-in-one toolkit for building on Avalanche. ✨ Full P/X/C-Chain coverage, wallet integration, cross-chain transfers, subnet creation & more. 📊 Harness the full power of the Data API and Network Metrics APIs. ⛓️
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Problem: Avalanche EVM chains rely on a block gas cost mechanism that lacks an explicit minimum block delay, requires upgrades for changes, and only supports second-level granularity. 💡If we can replace this mechanism with a dynamic minimum block delay set by validators, then
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Subnet-EVM v0.7.2 is released!🚀 ⚠️ It fixes an important bug in uptime tracking. It is strongly encouraged to update. 🚧 Plugin version is unchanged at 39, making it compatible with AvalancheGo v1.12.2. https://t.co/YvFoE3nahF
github.com
This version is backwards compatible to v0.7.0. It is optional, but strongly encouraged as it's fixing an important bug in uptime tracking. AvalancheGo Compatibility The plugin version is uncha...
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The Avalanche Card is designed for a world where crypto isn’t just held—it’s used. A new way to connect, without relying on mainstream tools. Use your AVAX anywhere Visa is accepted, available digitally & physically for ultimate convenience.
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Just to remind that this was not an "on-chain" issue and did not affect the whole Ethereum network (different client implementations are unaffected). Huge shout-out to @go_ethereum and @0xPolygon teams to find the issue and put up a fix quickly.
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Avalanche client/VM repositories (AvalancheGo, Coreth, Subnet-EVM) are not affected by this issue. Because: 1- The affected go-ethereum/crypto library versions (v1.14.0+) are not used or required in Avalanche's Golang repositories. 2- AvalancheGo (and transitively all other
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CVE TLDR: The issue can cause vulnerable nodes to panic or shut down when receiving a crafted p2p message. While detailed information has not yet been published, we believe the root cause of the issue is a missing curve validation in secp256k1 public key parse function.
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