When a payment lands, your app should be able to tell you. Ledger 9 adds public events to Midnight smart contracts, so wallets, explorers and apps can respond when transactions finalize. Turning onchain activity into useful updates for users. 👇

Shipped early. Live on mainnet. Midnight’s Ledger 9 upgrade lets smart contracts call one another within the same transaction. Congratulations to the Midnight team. More from @SebastienGllmt below. 👏

More support for Midnight builders. Midnight Foundation has welcomed Ventari as an advisor and Build Club mentor, helping teams with token design, launch strategy and market readiness. Details in the Foundation’s announcement below.

Hi everyone! 😄👋 We're AlwaysTrue, a Cardano-native company specialized in product development, protocol auditing, and devx! You've likely never heard of us because we haven't promoted our work publicly, but that's about to change! So, who are we? Founded by @theroberm (ex-Lead and PM of DevX at @IOGroup), our team has been part of the Cardano ecosystem since 2021. Over the last couple of years, we have provided services, audits, and support to other Cardano companies; most recently, we led IOG's 2026 DevX initiative under IOG's roof, which is now under ours (thank you, @IOGroup! 🙌). From the start, we tried to maximize the initiative's positive impact, both through outputs/deliverables (to help newcomers) and in how we spent the money we were given (to help existing community members). That's why we're very proud to present all the collaborators we recruited to help us deliver this initiative: @micrograx, @JorayFrancisco, and 3 other memers of @txpipe_tools are helping us shape the new Contracts Library. @Paulo_BressanJr from @TapDano is working with us diligently to make our vision for the updated Developer Portal Onboarding and cardano-init a reality. @twwu123 and @hinsoncode from @DeltaDeFi are working on the Bounty framework and tooling assessment we'll use to distribute bounties for the community using @sweetgithoney. And of course, all the external collaborators like @boraonchain from @Cardano_CF, @wolf31o2 from @blinklabs_io, and many others who take the time and effort to align objectives with us, check our PRs, etc. Our team is grateful to work alongside these amazing people, and we hope to keep collaborating with them and many more in the future! From now on, we'll share new updates on the DevX initiatives from this profile as well, but if you want to see everything we've done so far, see the link in the comments for all weekly updates (heads up, it's a lot). Big update incoming!! 👀

In this week's development report: Leios progresses, Hydra expands monitoring, DevX publishes Dijkstra readiness, Lace 2.5 ships, Plutus adds tests, High Assurance improves Blaster, and Research shares explainers. Read the full report for more details by clicking the link below.

New on the blog: a primer on Cardano's extended transaction output model – how it works, why transaction validation stays predictable, and how the Agda formal ledger specification turns those properties into machine-checked proofs. Learn more:

Two more Cardano engineering teams are finding independent homes: consensus at Serokell and DevX at AlwaysTrue. The engineers stay with their work, and development stays in the open. Read the full story:

Banks need to protect customer data as they bring financial services onchain. At @SALTConference, @F_ZK_Now explains the role of privacy in institutional adoption and @MidnightNtwrk’s work with @monument_bank.

Your AI should belong to you. In Tokyo, @IOHK_Charles explores Nightframes and his vision for Midnight City, connecting personal AI agents with privacy and digital identity. Watch the full talk from @MidnightNtwrk:

Your AI should belong to you. In Tokyo, @IOHK_Charles explores Nightframes and his vision for Midnight City, connecting personal AI agents with privacy and digital identity. Watch the full talk from @MidnightNtwrk:

In this week's development report: Leios integration, Hydra upgrades, cardano-init 0.3.0, Plutus builtins for Dijkstra, and high assurance tooling. See the full report for more details 👇

Last year, one Hydra head processed 3.5B NIGHT during @MidnightNtwrk’s Glacier Drop. It also exposed a few bugs along the way. We replayed 24,576 claims on Hydra v2. The result? ⚡ 1.9× more claims per second ⚡ 2.3× faster settlement And a much simpler way to run a head. 👇

More access to NIGHT in Japan. 🇯🇵 From October 13, NIGHT will be available on @OKCoinJapan, another step forward for @MidnightNtwrk’s growing presence in Japan and its work to bring programmable privacy to everyone.