# Cartesi Ecosystem Updates June, 2026 *Let’s dive into the latest updates of the Cartesi Ecosystem.* By [Cartesi](https://paragraph.com/@cartesians) · 2026-07-21 #crypto, #linux, #blockchain, defi, cartesi, web3 --- June answered a question builders have been asking for a while: what happens when an application stops and users need to recover their funds? Emergency withdrawals are now live and being tested, more tooling has been shipped, and the clearest signal of the month came from the Cartesi Foundation board members. Two of them stepped down to commit to building on the stack full time. That doesn't happen unless the infrastructure is real and conviction is high. Here's your full roundup of what happened across the Cartesi ecosystem this past month. Tech  ----- On the tech side, the headline release this month is Cartesi Rollups Node [v2.0.0-alpha.12](https://github.com/cartesi/rollups-node/releases/tag/v2.0.0-alpha.12), bringing emergency withdrawal functionality to Authority, Quorum, and PRT applications. For the first time, users can withdraw funds from a foreclosed application and from accounts proven onchain, fully trustless end-to-end.  The release adds compatibility with the latest v3 Rollups Contracts and advances integration with the Permissionless Refereed Tournament (PRT) fraud-proof system, to enable applications to be foreclosed and users to securely recover funds through the withdrawal pipeline. New CLI commands and JSON-RPC endpoints, including ‘cartesi\_listWithdrawals’ and ‘cartesi\_getWithdrawal’, cover the full lifecycle. The full CLI walkthrough is in [this thread](https://discord.com/channels/600597137524391947/1104007675370553505/1519407258671382618) in the [#rollups Discord channel](http://discord.gg/cartesi). The release also ships with Cartesi Machine Emulator v0.20.0 integration, removes the WebSocket dependency by switching blockchain synchronization to HTTP polling, and strengthens reliability through improved request handling, admission control, and validator safety checks. This version is aimed at core developers and testers. See the full [release notes](https://github.com/cartesi/rollups-node/releases/tag/v2.0.0-alpha.12) and don’t hesitate to drop any feedback via Discord. Developer tooling also received a broad update to match. [Cartesi CLI 2.0.0-alpha.35](https://github.com/cartesi/cli/releases/tag/%40cartesi%2Fcli%402.0.0-alpha.35) now catches configuration problems before startup, so there's no mid-session debugging when something's missing. Withdrawal testing is also available on Devnet, meaning the full withdrawal flow can be verified before going live. The release adds TOML-based configuration for the ‘run’ command, improved CORS handling, and stricter environment variable validation, and adopts the latest Rollups Node, Machine Emulator, contracts, and Explorer releases. The [Rollups Explorer v2.0.0-alpha.3](https://github.com/cartesi/rollups-explorer/releases/tag/v2.0.0-alpha.3) now warns before sending transactions to foreclosed apps and adds status indicators showing the state of any application at a glance. Small UX change, real difference when testing in the wild. The [rollups-ts](https://github.com/cartesi/rollups-ts/releases) library also shipped updates this month, with new Wagmi React hooks and JSON-RPC bindings that make it easier to build on top of the latest Rollups infrastructure. On the testnet side, fresh alphas of the Rollups Contracts and PRT dispute system were deployed to Sepolia and verified on Etherscan for full transparency. Contract addresses are published and ready to use. Grab the deployment addresses from [this thread](https://discord.com/channels/600597137524391947/1104007675370553505/1519413497778147479) on Discord in the [#rollups channel](http://discord.gg/cartesi). Our tech updates are also tracked monthly in [](https://x.com/cartesiproject/status/2064362640026296577)[L2BEAT](https://l2beat.com/scaling/summary)'s recap. Keep tabs on their [X account](https://x.com/l2beat) and browse [previous editions](https://l2beat.com/publications) to catch up on everything. Developer Advocacy ------------------ At Cartesi, lowering the barrier to building onchain is a Dev Advocacy priority, and June delivered on both education and demos. Developer Advocacy Lead [João Garcia](https://x.com/joaopdgarcia) wrapped up the three-part series called "Three Levels Deep." Each episode breaks down a different Cartesi concept at three levels of technical depth: simple enough for a child, detailed enough for an engineering student, and rigorous enough for a PhD researcher. The series covers [Cartesi's execution environment](https://x.com/joaopdgarcia/status/2061780282248765952?s=20), [app-specific rollups](https://x.com/joaopdgarcia/status/2065059372519010316?s=20), and [DeFi financial modeling](https://x.com/joaopdgarcia/status/2067601502110179709?s=20). By explaining the same concept three different ways, it gives builders and researchers an entry point regardless of where they're starting from. The full series is on [X](https://x.com/cartesiproject) and [YouTube](https://www.youtube.com/@Cartesiproject/videos), but in the meantime, check out the latest episode on how Black-Scholes, Monte Carlo simulations, logistic regression, and other traditional financial models need to be simplified to fit within Ethereum's gas constraints, but become computationally practical with Cartesi: [![User Avatar](https://storage.googleapis.com/papyrus_images/6cc8173bf161dba1a7a2d0fd62aecb4820fa8422fc067a9d97d6a2677f45a84b.jpg)](https://twitter.com/joaopdgarcia) [Joao Garcia](https://twitter.com/joaopdgarcia) [@joaopdgarcia](https://twitter.com/joaopdgarcia) [](https://twitter.com/joaopdgarcia/status/2067601502110179709) DeFi has been doing simplifications this whole time. Black-Scholes, Monte Carlo, logistic regression. All to fit a gas budget. I broke it down for a kid, an engineering student, and a PhD. Three Levels Deep on what [@cartesiproject](https://twitter.com/cartesiproject) changes for DeFi. Which level was yours? ![](https://pbs.twimg.com/amplify_video_thumb/2067601211117674496/img/VkpaU9UPSOwiCbLl.jpg) [18](https://twitter.com/joaopdgarcia/status/2067601502110179709)[ 1:33 PM • Jun 18, 2026 ](https://twitter.com/joaopdgarcia/status/2067601502110179709) A [Combinatorial Information Market demo](https://x.com/cartesiproject/status/2069410399909564883?s=20) went live this month, showing what deterministic, reproducible probabilistic inference looks like when running onchain. The demo models real-world forecasting variables as a connected probabilistic system rather than as isolated markets, capturing how inflation affects interest rates, how elections shape policy, and how outcomes in one domain ripple into others.  Under the hood, [the demo](https://www.youtube.com/watch?v=TJs2qlmN2ng) uses a junction tree to perform exact inference and belief propagation to compute probabilities across local clusters rather than a single joint probability table.  [![User Avatar](https://storage.googleapis.com/papyrus_images/4291fff2c5ccf866a9925c2e233752b1782f4d05f857cf466d6379b32f250ae3.jpg)](https://twitter.com/cartesiproject) [Cartesi](https://twitter.com/cartesiproject) [@cartesiproject](https://twitter.com/cartesiproject) [](https://twitter.com/cartesiproject/status/2069410399909564883) Real-world forecasts don't exist in isolation. Inflation affects interest rates. Elections affect policy. A team winning its group reshapes the bracket. This is a combinatorial information market demo built with deterministic, reproducible probabilistic inference on Cartesi. ↓ ![](https://pbs.twimg.com/amplify_video_thumb/2069410339943600128/img/0ZMoUFvSd4pr33VY.jpg) [18](https://twitter.com/cartesiproject/status/2069410399909564883)[ 1:21 PM • Jun 23, 2026 ](https://twitter.com/cartesiproject/status/2069410399909564883) This is the kind of computation financial systems routinely perform, and it can now be executed verifiably on Cartesi. Builders can explore the documentation and get started at [docs.cartesi.io](http://docs.cartesi.io). On another note, it's worth bringing this up again in case you missed it: make sure you check [Shaheen Ahmed](https://x.com/riseandshaheen)'s vibe-coding series. It gathered three sessions and got sharper with each one, meant to inspire you to build with Cartesi and AI.  The [first one](https://x.com/riseandshaheen/status/2047247344828395616?s=20) put [Cursor](https://x.com/cursor_ai) to a direct test to build an end-to-end Cartesi prototype with a [Chainlink](https://x.com/chainlink) price feed and onchain computation. The result was impressive, and it tells you where the bar is.  The second brought a [position risk feature](https://x.com/riseandshaheen/status/2054821391795675142?s=20) to life inside the Cartesi Machine using a Python and NumPy stack, built for anyone managing exposure on [Aave](https://app.aave.com/) and similar protocols.  The third showed a [bonding curve](https://x.com/riseandshaheen/status/2059219463417766135?s=20) simulating token price mechanics onchain, a real building block for DeFi pricing and token economics.  Follow our Developer Advocate [Shaheen](https://x.com/riseandshaheen) to stay in the loop on more vibe-coding and AI-pilled builds. Ecosystem  ---------- June finished with a signal worth pausing on. Two Cartesi Foundation board members, [Felipe Argento](https://x.com/felipeargento) and [Brandon Isaacson,](https://x.com/nodnarb) stepped down to start building on Cartesi. Both shared their reflections publicly. Felipe put it plainly: nobody is going to grasp what this stack makes possible from a diagram. They'll understand it through a product that's actually great. [Read his thread.](https://x.com/felipeargento/status/2069783313204547736) Brandon pointed to the same opportunity from a financial perspective: the math, the risk models, and the complex logic TradFi runs every day are all possible on Cartesi, which means all of it is now possible on Ethereum. [Read his take](https://x.com/nodnarb/status/2069783696803070050). The people who know this stack best chose to build on it. Co-founder [Erick de Moura](https://x.com/erickdemoura) shared what that moment means for the project: [![User Avatar](https://storage.googleapis.com/papyrus_images/e50c7c6ad6e2bea15f71d7556fe7657459a84ac0ba167597621eaa6da5a1e65e.jpg)](https://twitter.com/erickdemoura) [Erick de Moura](https://twitter.com/erickdemoura) [@erickdemoura](https://twitter.com/erickdemoura) [](https://twitter.com/erickdemoura/status/2070161005032915355) Seeing two Cartesi Foundation board members, [@nodnarb](https://twitter.com/nodnarb) and [@felipeargento](https://twitter.com/felipeargento), take this next step feels meaningful to me. The market taught [@cartesiproject](https://twitter.com/cartesiproject) (and the industry at large) a difficult lesson over the years: On their own, powerful infrastructure and fundamentals don't [26](https://twitter.com/erickdemoura/status/2070161005032915355)[ 3:03 PM • Jun 25, 2026 ](https://twitter.com/erickdemoura/status/2070161005032915355) Community  ---------- On the community front, a new batch of Cartesi GIFs has landed on X. Search "Cartesi" in the GIF tab next time you're posting and put them to use. Wisely or just for the fun of it. [![User Avatar](https://storage.googleapis.com/papyrus_images/4291fff2c5ccf866a9925c2e233752b1782f4d05f857cf466d6379b32f250ae3.jpg)](https://twitter.com/cartesiproject) [Cartesi](https://twitter.com/cartesiproject) [@cartesiproject](https://twitter.com/cartesiproject) [](https://twitter.com/cartesiproject/status/2071581421223768090) GM from where Linux programmability meets Ethereum security. No new languages to learn. No compromises on what you can build. Real compute, real tools, full verifiability. Your appchain, your rules. Let's make this week count. ![](https://pbs.twimg.com/tweet_video_thumb/HL-8UEGXgAARqMR.jpg) [19](https://twitter.com/cartesiproject/status/2071581421223768090)[ 1:07 PM • Jun 29, 2026 ](https://twitter.com/cartesiproject/status/2071581421223768090) The community also wrapped up a survey this month. Merch packs are heading to the first respondents who made their voices heard. The usual drill: unbox them on socials when they arrive, just like our community members [Coderhema](https://x.com/coderhema/status/2069473603553497311?s=20) and [Cartesian](https://x.com/cartesiian/status/2072523119210664087?s=20) did: [![User Avatar](https://storage.googleapis.com/papyrus_images/4722e0be0946a1461fa6632bb96af0bf87047dc13085021c7c3f42c43777b1b3.jpg)](https://twitter.com/cartesiian) [Cartesian](https://twitter.com/cartesiian) [@cartesiian](https://twitter.com/cartesiian) [](https://twitter.com/cartesiian/status/2072523119210664087) I received a beautiful package that stands out from all the others ,simply because it’s from Cartesi ! I’m going to wear this T-shirt proudly! Thank you, [@cartesiproject](https://twitter.com/cartesiproject) 🩵 ![](https://storage.googleapis.com/papyrus_images/572309f85c1fa0348bfad12897439f8c7b3b8b1196d1ab3a515318e5717a14eb.jpg) [13](https://twitter.com/cartesiian/status/2072523119210664087)[ 3:29 AM • Jul 2, 2026 ](https://twitter.com/cartesiian/status/2072523119210664087) June also brought two pieces of content worth saving and sharing in the community. If you're new to Cartesi or just want a clean reference to send someone, we put together a reintroduction: a single [infographic](https://x.com/cartesiproject/status/2070130652620693820?s=20) that captures what Cartesi is, at a glance. And if you want the fuller picture on why this matters for DeFi specifically, the [10 reasons DeFi needs Linux onchain](https://x.com/cartesiproject/status/2067246406763704757?s=20) thread breaks it down clearly. Both are worth bookmarking and passing along. Media ----- On the media front, Dev Advocacy Lead [João Garcia](https://x.com/joaopdgarcia) joined [Web3CMO Stories](https://x.com/Web3CMOStories) to talk about what DeFi's next infrastructure layer looks like: Linux onchain, real computation, app-specific rollups. [](https://x.com/joeribillast/status/2070119110906663127)Give it a listen: [![User Avatar](https://storage.googleapis.com/papyrus_images/1abc5ad42b6470f8d908acbb62a62d4a08c2b99b6ad93648a5f340b44a512e36.jpg)](https://twitter.com/joeribillast) [Joeri Billast | The Future CMO](https://twitter.com/joeribillast) [@joeribillast](https://twitter.com/joeribillast) [](https://twitter.com/joeribillast/status/2070119110906663127) What if DeFi was built for finance first? ![🎧](https://abs-0.twimg.com/emoji/v2/72x72/1f3a7.png) Listen here to the latest [@Web3CMOStories](https://twitter.com/Web3CMOStories) episode: [cmo-stories.com/1903080/episod…](https://t.co/Vvemvw70c7) About 2 years after [@erickdemoura](https://twitter.com/erickdemoura), I spoke with [@joaopdgarcia](https://twitter.com/joaopdgarcia) from [@cartesiproject](https://twitter.com/cartesiproject) on why DeFi’s next leap may not be better UX or tokenomics, but better ![](https://storage.googleapis.com/papyrus_images/a32c6ec002e12110730887b6c325fc6bd6cdd6ed5689057854783842f5b37d9b.jpg) [17](https://twitter.com/joeribillast/status/2070119110906663127)[ 12:17 PM • Jun 25, 2026 ](https://twitter.com/joeribillast/status/2070119110906663127) João also joined the [ChainPatrol](https://x.com/ChainPatrol) podcast for an insightful conversation on similar themes, but through the lens of security and Cartesi's approach in this area. Big shoutout to the hosts for having us. Check it out: [![User Avatar](https://storage.googleapis.com/papyrus_images/49a11b0fc6cbc8781147988b7b845e2a9f6622ce43aa29e5599f75a670f7aad2.jpg)](https://twitter.com/ChainPatrol) [ChainPatrol](https://twitter.com/ChainPatrol) [@ChainPatrol](https://twitter.com/ChainPatrol) [](https://twitter.com/ChainPatrol/status/2067684135515336752) Hot Takes and Cold Wallets : Episode #28 - João from Cartesi [x.com/i/broadcasts/1…](https://t.co/zkELpeBIC5) [19](https://twitter.com/ChainPatrol/status/2067684135515336752)[ 7:01 PM • Jun 18, 2026 ](https://twitter.com/ChainPatrol/status/2067684135515336752) Beyond that, Cartesi continues to grow its presence in CoinMarketCap's community. And the platform still generates a steady stream of AI-powered [articles](https://coinmarketcap.com/cmc-ai/cartesi/what-is/) covering our [updates](https://coinmarketcap.com/cmc-ai/cartesi/latest-updates/) and what it means to build with the full Linux toolbox onchain, backed by Ethereum's security. Follow our profile [there](https://coinmarketcap.com/community/profile/cartesiproject/) to stay in the loop. Cartesi also [joined TikTok](https://tiktok.com/@cartesiproject) this month. The channel is live and content is on the way. Be among the first to follow. And if you haven't already, the [Cartesi YouTube channel](https://youtube.com/@Cartesiproject) is worth subscribing to. Shorts, demos, and new tutorials drop there constantly. These ecosystem updates hit Cartesians' inboxes every month through our newsletter, and this edition rewards the fastest reader with another merch pack. [Subscribe](https://mailchi.mp/cartesi/email-newsletter) if you haven't already and watch for the drop. That’s a Wrap ------------- June set a clear direction: emergency withdrawal infrastructure is live and tested, the tooling is sharper across every layer of the stack, and the people closest to the project are choosing to build on it.  Cartesi enters July with the foundation in place and a focused mission on becoming the verifiable compute layer DeFi has been waiting for. DeFi is the floor, not the ceiling, as our co-founder [Erick de Moura](https://x.com/erickdemoura/status/2055788851851846014?s=20) has said before. Stay tuned for what we have in store for the second half of 2026. As always, for live updates, join us on [Discord](https://discord.gg/cartesi), make sure you're following us on [X](https://x.com/cartesiproject), and come chat and hang out with the community on [Telegram](http://t.me/cartesiproject). --- *Originally published on [Cartesi](https://paragraph.com/@cartesians/cartesi-ecosystem-updates-june-2026)*