Polymarket2026-09-28 16:44:31Polymarket to rebuild DeFi CLOB system, with end-to-end testing set for OctoberPolymarket is rebuilding the Rust-based central limit order book, or CLOB, used on its DeFi side, according to Josh Stevens, the company’s vice president. Stevens said the current CLOB is viewed internally as the main source of most of the platform’s technical issues. The upgrade plan sets October as the target for full order-lifecycle testing in a staging environment. That test scope will cover trading, settlement, on-chain interactions, the indexer, and the notification flow tied to the matching engine. In November, the team plans to mirror all production traffic to a new trading cluster for comparison. Polymarket also intends to open testing access to market makers during that phase. At the same time, the company will decide on the final migration cutover plan and run two full rehearsals before any switch is made.580
Polymarket2026-09-28 13:29:33Polymarket sets November start for production-mirror testing of new Rust CLOBPolymarket is pushing ahead with a new Rust-based central limit order book, or CLOB, as part of its latest DeFi migration plan, according to Josh Stevens, the platform’s head of development. Stevens said the current CLOB sits at the center of many of the issues the team is dealing with, making the replacement a key technical priority. The roadmap starts in October, when Polymarket plans to run a full end-to-end order lifecycle in a test environment. That scope includes trading, settlement, onchain interactions, the indexer, and engine notifications. In November, the team plans to mirror all production traffic to the new trading cluster and compare the results with the existing system, while also opening test access to market makers. Stevens said Polymarket aims to finalize its cutover plan in November and complete two full rehearsals before the final switch. If development stays on track, the new system will then be released. He added that the migration is designed to minimize changes for market makers and developers: request and response interfaces are expected to stay the same, with only some additional fields and the deprecation of one field, and any deprecation will be announced in advance.850
Polymarket2026-09-28 13:27:45Polymarket VP says team is building a full Rust-based CLOBPolymarket Vice President Josh said on X that the team is working at full speed on a full central limit order book, or CLOB, built in Rust. He also said the platform’s current CLOB is the source of most of its existing problems. The comment points to active development around Polymarket’s core trading infrastructure and a possible effort to address issues tied to the current order book system. No launch date or additional technical details were disclosed in the post cited by ChainCatcher.450
Polymarket2026-09-18 01:27:48Polymarket hires former Zora CEO Jacob Horne to lead product with a DeFi focusPolymarket said it has hired former Zora CEO Jacob Horne for a broad product role centered on the company’s DeFi business. CEO Shayne Coplan said the performance of Polymarket’s onchain products has slipped as the company has grown, and noted that some long-time users believe the firm has shifted its attention toward its U.S. business. Coplan said Polymarket is working to unify its products, though he did not share a launch date or mention any changes related to fees, liquidity, or routing. The company said it plans to hold a DeFi community meeting soon to gather feedback and share a roadmap, and users can send input directly to Horne or Coplan before then. Earlier comments from Polymarket DeFi engineering VP Josh Stevens, made on Aug. 31, described the existing central limit order book as heavily burdened by technical debt. Stevens said the team had scaled the system by 10x and improved speed by 3x, but the architecture still had flaws. He added that the matching engine is being rewritten from scratch in Rust, with completion targeted for the middle to later part of the fourth quarter. Early benchmarks showed p99 latency running 10x to 20x faster than the current system, with throughput reaching 200,000 orders per second, about 15x current capacity.660
Polymarket2026-09-11 12:48:56Polymarket issues compensation over earlier CLOB outage, with about 3,000 wallets credited automaticallyPolymarket has issued what it described as goodwill compensation to users affected by an earlier outage involving its central limit order book, or CLOB. Suhail Kakar, the company’s head of DeFi integrations, said in a post on X that about 3,000 wallets have already received the compensation automatically. Kakar said users who believe they were affected but did not receive a payout can contact the team by email before Sept. 18 and provide detailed information for a manual review. The update sets a clear deadline for claims that were not covered by the automatic distribution. Foresight News had previously reported that Polymarket’s status page showed a major incident on Aug. 31 affecting its trading API, identified as CLOB. At the time, users experienced delayed responses when trying to read open orders. The latest compensation notice ties back to that service disruption and outlines both the automatic payout process and the channel for follow-up cases.1430
Polymarket2026-08-31 11:07:17Polymarket says CLOB read-delay issue has been resolved and services are operationalPolymarket has restored normal operations after repeated read delays affected open-order queries on its central limit order book, or CLOB, trading system. The issue had led the platform to pause trading multiple times and switch the market into a cancel-only mode while it handled the fault. According to the service status update cited by Odaily, the incident was marked "Resolved" at 18:47 GMT+8 on Aug. 31. The platform now lists its CLOB, web interface, account access, prediction market data, on-chain settlement, and perpetual-contract related services as "Operational." The update indicates that the system has returned to normal status across those core functions after the earlier disruption.1300
Polymarket2026-08-31 09:19:17Polymarket halts trading after outage, targets recovery by 10:00 UTCPrediction market platform Polymarket suffered a major outage on Aug. 31, temporarily stopping trading across the platform. According to the company’s status page, the issue began at around 6:30 UTC and affected the Trading API, or central limit order book (CLOB), with delayed responses when reading open orders. As a result, trading was fully paused. The website itself remained accessible, and market data could still be viewed, but users were unable to place orders during the disruption. Polymarket said it was working on a fix and set a target of restoring trading no later than 10:00 UTC. Before full service resumes, the platform plans to enter a 15-minute cancel-only mode, allowing users to cancel orders but not submit new ones. The company added that its other systems, including the website, data services, and authentication, were operating normally during the incident.1220
XRP Ledger2026-07-23 15:40:15XRP Ledger’s 2012-Native DEX Returns to Focus as Solana’s New Model Draws AttentionDiscussion around Solana project Mato has revived interest in XRP Ledger’s built-in DEX, which has operated since 2012 and uses a CLOB structure instead of relying solely on AMMs.2010
