# Announcements **URL:** https://forum.fuel.network/c/announcements/7.md [Latest](https://forum.fuel.network/latest.md) · [Categories](https://forum.fuel.network/categories.md) · [Tags](https://forum.fuel.network/tags.md) --- ## [Introducing Fuel: the Rollup OS for Ethereum](https://forum.fuel.network/t/introducing-fuel-the-rollup-os-for-ethereum/4422)
**Author:** [@sandusky](https://forum.fuel.network/u/sandusky)\ **Replies:** 5\ **Last updated:** [December 19, 2024, 5:02pm UTC](https://forum.fuel.network/t/introducing-fuel-the-rollup-os-for-ethereum/4422 "2024-12-19T17:02:52Z")
Introducing Fuel: the Rollup OS for Ethereum Fuel is an operating system purpose-built for Ethereum rollups. In Dec 2020, Fuel Labs launched Fuel V1, the first optimistic rollup on Ethereum, and the first to achie… --- ## [About the Announcements category](https://forum.fuel.network/t/about-the-announcements-category/27)
**Author:** [@camiinthisthang.sway](https://forum.fuel.network/u/camiinthisthang.sway)\ **Replies:** 0
Announcements of any sort, project updates, meetups, etc. --- ## [Devnet Chain ID Change from 0 to 1119889111](https://forum.fuel.network/t/devnet-chain-id-change-from-0-to-1119889111/9689)
**Author:** [@calldelegation](https://forum.fuel.network/u/calldelegation)\ **Replies:** 0\ **Last updated:** [January 27, 2026, 5:18pm UTC](https://forum.fuel.network/t/devnet-chain-id-change-from-0-to-1119889111/9689 "2026-01-27T17:18:17Z")
We’re changing devnet’s Chain ID from 0 to 1119889111 on Wednesday, January 29 at 9:00 AM PT. Currently, both devnet and testnet share a Chain ID of 0, making it difficult for apps to identify which network they’re conn… --- ## [Important: SDK Update Required](https://forum.fuel.network/t/important-sdk-update-required/9681)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [December 17, 2025, 3:40pm UTC](https://forum.fuel.network/t/important-sdk-update-required/9681 "2025-12-17T15:40:51Z")
Please update your projects to the latest TypeScript (v0.102.0) and Rust (v0.76.0) SDKs to support new functionality rolled out in October, including changes for o2 and other ecosystem use cases: TS sdk: Release v0.102… --- ## [Fuel Core v0.47.1 Upgrade Notice (Recommended Upgrade)](https://forum.fuel.network/t/fuel-core-v0-47-1-upgrade-notice-recommended-upgrade/9650)
**Author:** [@calldelegation](https://forum.fuel.network/u/calldelegation)\ **Replies:** 0\ **Last updated:** [October 21, 2025, 7:34pm UTC](https://forum.fuel.network/t/fuel-core-v0-47-1-upgrade-notice-recommended-upgrade/9650 "2025-10-21T19:34:06Z")
Fuel Core v0.47.1 is now available and is fully backwards compatible. This is a performance focused release with significant improvements to enhance throughput and overall network performance. We recommend everyone upgr… --- ## [Testnet Status Update](https://forum.fuel.network/t/testnet-status-update/9535)
**Author:** [@calldelegation](https://forum.fuel.network/u/calldelegation)\ **Replies:** 1\ **Last updated:** [October 1, 2025, 6:55am UTC](https://forum.fuel.network/t/testnet-status-update/9535 "2025-10-01T06:55:16Z")
We’re currently experiencing an outage affecting block production on testnet. Our operations team has encountered issues with our bare metal storage provider. We’re working to resolve this as quickly as possible and will… --- ## [Network Outage Update](https://forum.fuel.network/t/network-outage-update/9516)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [September 12, 2025, 6:20am UTC](https://forum.fuel.network/t/network-outage-update/9516 "2025-09-12T06:20:30Z")
We experienced a network outage on September 10th from approximately 11:30 PM PT to 1:00 AM PT. Everything is now back online and stable. We are monitoring the situation closely and have already put a few immediate back… --- ## [Public RPC Query Limit Adjustment - Action May Be Required](https://forum.fuel.network/t/public-rpc-query-limit-adjustment-action-may-be-required/9512)
**Author:** [@calldelegation](https://forum.fuel.network/u/calldelegation)\ **Replies:** 0\ **Last updated:** [September 8, 2025, 3:17pm UTC](https://forum.fuel.network/t/public-rpc-query-limit-adjustment-action-may-be-required/9512 "2025-09-08T15:17:54Z")
We’re reducing GraphQL query complexity limits on public RPC endpoints over the next week to improve overall performance. Why this change: About a year ago, we raised these limits for Fuel Ignition. While our SDKs have … --- ## [Upcoming Fuel Core Upgrade: \`v0.46.0\`](https://forum.fuel.network/t/upcoming-fuel-core-upgrade-v0-46-0/9489)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [August 13, 2025, 5:00pm UTC](https://forum.fuel.network/t/upcoming-fuel-core-upgrade-v0-46-0/9489 "2025-08-13T17:00:39Z")
We’re scheduling the next upgrade of fuel-core to v0.46.0 for both testnet and mainnet. This update is recommended for all users and can be installed immediately. Key Info: Testnet rollout: August 25th Mainnet rollou… --- ## [Fuel Core 0.45.1 Upgrade Notice (Recommended Upgrade)](https://forum.fuel.network/t/fuel-core-0-45-1-upgrade-notice-recommended-upgrade/9476)
**Author:** [@calldelegation](https://forum.fuel.network/u/calldelegation)\ **Replies:** 0\ **Last updated:** [July 28, 2025, 9:13pm UTC](https://forum.fuel.network/t/fuel-core-0-45-1-upgrade-notice-recommended-upgrade/9476 "2025-07-28T21:13:12Z")
Fuel Core v0.45.1 is now available and is backwards compatible, so upgrading is not immediately required. However, this release increases P2P bandwidth capacity limits. As network throughput (TPS) increases, nodes runnin… --- ## [Fuel Wallet Update: UTXO Consolidation is live!](https://forum.fuel.network/t/fuel-wallet-update-utxo-consolidation-is-live/9484)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [August 6, 2025, 6:28am UTC](https://forum.fuel.network/t/fuel-wallet-update-utxo-consolidation-is-live/9484 "2025-08-06T06:28:43Z")
If you are running into “Too many UTXOs” error then this post is for you. The latest Fuel Wallet release includes a built-in UTXO Consolidation Flow to help resolve it. How it works: Wallet detects if you have more t… --- ## [Forc.pub is live! 🌴](https://forum.fuel.network/t/forc-pub-is-live/9425)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [July 7, 2025, 1:52pm UTC](https://forum.fuel.network/t/forc-pub-is-live/9425 "2025-07-07T13:52:21Z")
Fuel’s official package registry for Sway is live: forc.pub No more copying code from GitHub, just run: forc add \ :white\_check\_mark: Import libraries like reentrancy, pausable, SRC-20 :white\_check\_mark: … --- ## [Scheduled Maintenance: July 2nd, 11:30 AM to 1:00 PM UTC](https://forum.fuel.network/t/scheduled-maintenance-july-2nd-11-30-am-to-1-00-pm-utc/9356)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [June 26, 2025, 3:39pm UTC](https://forum.fuel.network/t/scheduled-maintenance-july-2nd-11-30-am-to-1-00-pm-utc/9356 "2025-06-26T15:39:42Z")
Hey everyone, We’re scheduling a network maintenance window on July 2nd from 11:30 AM to 1:00 PM UTC. What to Expect? Block production will continue as usual, no downtime expected. However, there may be a slight delay… --- ## [\[Post-Mortem\] Timestamp Sync Issue with our networks](https://forum.fuel.network/t/post-mortem-timestamp-sync-issue-with-our-networks/9285)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [June 11, 2025, 6:27am UTC](https://forum.fuel.network/t/post-mortem-timestamp-sync-issue-with-our-networks/9285 "2025-06-11T06:27:01Z")
We’d like to share some context around a recent infrastructure issue that affected timestamps on our devnet, testnet, and mainnet environments, impacting services like Pyth and Swaylend. What Happened? Fuel recently mig… --- ## [Mainnet RPC Performance Maintaince Thursday, May 29](https://forum.fuel.network/t/mainnet-rpc-performance-maintaince-thursday-may-29/9234)
**Author:** [@calldelegation](https://forum.fuel.network/u/calldelegation)\ **Replies:** 0\ **Last updated:** [May 28, 2025, 8:04pm UTC](https://forum.fuel.network/t/mainnet-rpc-performance-maintaince-thursday-may-29/9234 "2025-05-28T20:04:15Z")
Starting at 16:00 UTC / 9am PDT Thursday, May 29 Fuel will be performing maintaince on our mainnet RPC infrastructure and network. No downtime is expected on the network, however Fuel’s public API endpoint (https://mainn… --- ## [New Release of Sway \`v0.68\`](https://forum.fuel.network/t/new-release-of-sway-v0-68/9087)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [April 25, 2025, 12:35pm UTC](https://forum.fuel.network/t/new-release-of-sway-v0-68/9087 "2025-04-25T12:35:10Z")
We’re happy to share the release of new Sway v0.68. It brings significant performance boosts and important safety enhancements. What’s New? Huge Performance Boost in LSP: We’ve greatly improved the Language Server Prot… --- ## [Release of Fuel Connectors \`v0.40.0\`](https://forum.fuel.network/t/release-of-fuel-connectors-v0-40-0/9074)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [April 22, 2025, 2:26pm UTC](https://forum.fuel.network/t/release-of-fuel-connectors-v0-40-0/9074 "2025-04-22T14:26:07Z")
We’re excited to roll out the new version of Fuel Connectors. With this new version, we have enabled mobile support via the Fuelet app. You can now connect to Fuel applications on your mobile devices and enjoy smoother o… --- ## [Sway Libs v0.25.0 is out!](https://forum.fuel.network/t/sway-libs-v0-25-0-is-out/8880)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [March 18, 2025, 12:44pm UTC](https://forum.fuel.network/t/sway-libs-v0-25-0-is-out/8880 "2025-03-18T12:44:11Z")
A newer version of Sway libs is out :link: Release Notes New Additions Big Integers Library with the BigUint type. (#326) Sparse Merkle Proof Library introduced. (#329) TotalOrd trait implemented for I8, I16, I32, I64,… --- ## [Released newer version of TS SDK v0.100.0](https://forum.fuel.network/t/released-newer-version-of-ts-sdk-v0-100-0/8879)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [March 18, 2025, 12:35pm UTC](https://forum.fuel.network/t/released-newer-version-of-ts-sdk-v0-100-0/8879 "2025-03-18T12:35:54Z")
New version of TS SDK is out. :link: Release Notes & Details TX Optimization - Part 1 Improved JSON RPC between SDK, Connectors, and Wallet Merged gas price & predicate estimation into a single request for better effi… --- ## [Important: Breaking release of Sway \`0.67.0\` Incoming](https://forum.fuel.network/t/important-breaking-release-of-sway-0-67-0-incoming/8842)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [March 13, 2025, 10:23am UTC](https://forum.fuel.network/t/important-breaking-release-of-sway-0-67-0-incoming/8842 "2025-03-13T10:23:03Z")
We’ll be releasing the breaking version of Sway v0.67.0 soon! This will be our first breaking release since mainnet launch. Considering the feedback we received from our previous breaking releases, we’ve built a great to… --- ## [Attention: Upgrade to the latest Fuel Connectors library / TS-SDK](https://forum.fuel.network/t/attention-upgrade-to-the-latest-fuel-connectors-library-ts-sdk/8841)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [March 13, 2025, 8:25am UTC](https://forum.fuel.network/t/attention-upgrade-to-the-latest-fuel-connectors-library-ts-sdk/8841 "2025-03-13T08:25:27Z")
To ensure a seamless user experience and avoid potential issues, we strongly encourage upgrading to the latest version of the Fuel Connectors library / TS-SDK. Why This Matters Staying on outdated versions may result i… --- ## [Fuel Core Upgrade: v0.41.8 & Mainnet Upgrade Reschedule](https://forum.fuel.network/t/fuel-core-upgrade-v0-41-8-mainnet-upgrade-reschedule/8768)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [March 7, 2025, 3:52am UTC](https://forum.fuel.network/t/fuel-core-upgrade-v0-41-8-mainnet-upgrade-reschedule/8768 "2025-03-07T03:52:05Z")
We are rolling out Fuel Core v0.41.8, which includes a crucial bug fix for high CPU usage caused by on-disk database writes. This upgrade is highly recommended to ensure optimal network performance. Key Updates: Fuel C… --- ## [Network Upgrade Announcement for Node Operators](https://forum.fuel.network/t/network-upgrade-announcement-for-node-operators/8450)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [February 7, 2025, 3:51am UTC](https://forum.fuel.network/t/network-upgrade-announcement-for-node-operators/8450 "2025-02-07T03:51:05Z")
We’re preparing for a major client release that will upgrade the network from v0.40.x to v0.41.x. This upgrade is required for all node operators to ensure continued operation and optimal performance. Key Dates: Testn… --- ## [Release of FUEL CONNECTORS v0.38.1](https://forum.fuel.network/t/release-of-fuel-connectors-v0-38-1/8335)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [January 29, 2025, 9:51am UTC](https://forum.fuel.network/t/release-of-fuel-connectors-v0-38-1/8335 "2025-01-29T09:51:36Z")
We’re happy to announce the release of Fuel Connectors v0.38.1, that brings UX and DevEx improvements to enhance your experience and streamline development workflows. UX Improvements EVM Connector: Skip signature promp… --- ## [Heads-Up: Sway Path Resolution Incoming Update](https://forum.fuel.network/t/heads-up-sway-path-resolution-incoming-update/8093)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [January 16, 2025, 3:11pm UTC](https://forum.fuel.network/t/heads-up-sway-path-resolution-incoming-update/8093 "2025-01-16T15:11:02Z")
Hey builders, We want to give a heads-up regarding the PR that we will be merging soon which fixes path resolution bugs in Sway. This isn’t released yet, but it will be soon. This wont break correctly written imports, … --- ## [Sunsetting Beta-4 and Beta-5 Test networks](https://forum.fuel.network/t/sunsetting-beta-4-and-beta-5-test-networks/8061)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [January 13, 2025, 10:23am UTC](https://forum.fuel.network/t/sunsetting-beta-4-and-beta-5-test-networks/8061 "2025-01-13T10:23:18Z")
Hello builders, Since the release of the mainnet and stable testnet and with the significant growth in both networks, we are sunsetting Beta-4 and Beta-5 test networks. To avoid any consequences, please ensure that you… --- ## [Announcement: Final Testnet Upgrade](https://forum.fuel.network/t/announcement-final-testnet-upgrade/7329)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 2\ **Last updated:** [December 12, 2024, 2:20am UTC](https://forum.fuel.network/t/announcement-final-testnet-upgrade/7329 "2024-12-12T02:20:44Z")
This testnet upgrade has been successfully completed, and the network is functioning perfectly. However, a final upgrade is required, which we will do tomorrow, Thursday, Dec 12, from 7:00 PM to 8:00 PM CET. Please not… --- ## [Our full-chain game has been launched on the fuel network. Welcome to play](https://forum.fuel.network/t/our-full-chain-game-has-been-launched-on-the-fuel-network-welcome-to-play/6556)
**Author:** [@Clara](https://forum.fuel.network/u/Clara)\ **Replies:** 20\ **Last updated:** [December 10, 2024, 6:48pm UTC](https://forum.fuel.network/t/our-full-chain-game-has-been-launched-on-the-fuel-network-welcome-to-play/6556 "2024-12-10T18:48:08Z")
The website link is https://constellation.fun The first basic function version is currently online. The second version of more community functions will also be online in the future. Welcome to play. If you have any g… --- ## [Important: Testnet Maintenance Announcement](https://forum.fuel.network/t/important-testnet-maintenance-announcement/7171)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 1\ **Last updated:** [December 10, 2024, 1:49pm UTC](https://forum.fuel.network/t/important-testnet-maintenance-announcement/7171 "2024-12-10T13:49:53Z")
The EKS control plane will be upgraded to the latest v1.30 on Monday, Dec 9, from 11:00 AM to 2:30 PM CET. Some temporary pauses are expected in block production or RPC disconnects, as pods are transitioned to new Kubern… --- ## [Important: Testnet cluster upgrade](https://forum.fuel.network/t/important-testnet-cluster-upgrade/7286)
**Author:** [@naz3eh](https://forum.fuel.network/u/naz3eh)\ **Replies:** 0\ **Last updated:** [December 10, 2024, 1:35pm UTC](https://forum.fuel.network/t/important-testnet-cluster-upgrade/7286 "2024-12-10T13:35:38Z")
We were successfully able to upgrade the testnet cluster (as we have mentioned in the above post) to v1.28 yesterday. However, we will need some more time and will be doing another upgrade on Wednesday, Dec 11, from 1:… [Next page](https://forum.fuel.network/c/announcements/7.md?page=1)