Major developments, governance votes, and ecosystem milestones. Most recent first.
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Canton Foundation CIP repository (approved 2026-06-15): CIP-0119 adds transferPreapprovalBaseDuration (default 90 days) to AmuletConfig—creating or renewing preapprovals within that window is free beyond standard traffic (including free base traffic), addressing exchange onboarding after CIP-0096 removed validator liveness rewards. Longer durations can still burn CC fees.
Canton Network Forum (May 13 announcement; kickoff June 15, 2026): Encode Club’s fully virtual Build on Canton Hackathon opens to builders worldwide across three tracks—Private DeFi & Capital Markets; TradeFi, RWA & Tokenized Assets; and Payments, Neo-banking & Agentic Commerce. Program page at encodeclub.com/programmes/canton-hackathon.
SBI Holdings investor notice (June 12, 2026): SBI invested further in Digital Asset’s $355M round via a subsidiary, deepening its role as a Canton founding partner and Super Validator. The release cites DTCC’s U.S. Treasury tokenization on Canton (December 2025), a Japanese government-bond digital-collateral PoC starting April 2026, 700+ network participants, and >$6T in on-chain managed assets—with broader DTCC rollout expected in H2 2026.
Super Validator operations schedule update (June 12, 2026): Global Synchronizer networks enter Phase 3 Logical Synchronizer Upgrades to Canton Protocol Version 35. TestNet topology freeze June 16 / upgrade June 17; MainNet freeze June 26 / upgrade June 27 (13:00 UTC). Validators require Splice ≥0.6.5; Splice 0.6.7 is required by June 30 ahead of traffic-based app rewards. Party onboarding and package vetting pause ~24h before each LSU. See SV long-term ops schedule for authoritative timing.
Official Canton Network blog recap of Quadrillions Episode 3—Eli Ben-Sasson (StarkWare) and Shaul Kfir on why wholesale capital hits adoption limits on fully transparent chains, ZK rollups vs integrity vs privacy, and Canton’s asymmetric-visibility data-distribution model for institutional RWAs. Blockworks × Canton miniseries; full episode at quadrillionspod.com. Blog dated June 11, 2026.
PRNewswire (June 11, 2026): Digital Asset (DA), creator of Canton, closed a $355 million funding round led by a16z crypto—with participants including Citadel Securities, HSBC, BNP Paribas, Broadridge, Apollo Funds, CME Ventures, Coinbase Ventures, Hanwha Investment & Securities, Tradeweb, S&P Global, Polychain, and others. DA plans to expand Canton ecosystem offerings, deepen developer and institutional engagement, and support tokenization, collateral mobility, settlement, and regulated workflows. CEO Yuval Rooz and a16z crypto GP Ali Yahya are quoted; FT Partners advised on the transaction.
Kraken Blog (June 11, 2026): Kraken supports USDCx funding via the Canton Network—described as the first step in broader Canton ecosystem support. USDCx is a Canton-native stablecoin backed 1:1 by USDC held in Circle xReserve (minted on Canton when USDC is deposited to xReserve on Ethereum). Deposits on unsupported networks may be lost; spot trading awaits liquidity conditions; geographic restrictions may apply.
Grayscale Investments filed a preliminary Form S-1 (June 5, 2026) for a spot ETF holding Canton Coin (CC) directly—the trust would track CC via an index price, with BitGo as custodian. The filing is not yet effective (no ticker or fee disclosed) and notes concentration risk: the 100 largest CC wallets held ~89% of circulating supply per the prospectus. Verify status on SEC EDGAR before treating as a tradable product.
Visa investor release (June 4, 2026): Visa and Brale are running a proof-of-concept to evaluate SBC—Brale’s U.S. dollar-backed stablecoin natively supported on Canton—for institutional VisaNet settlement using Canton’s privacy architecture. Exploratory PoC only; no production deployment or launch timeline announced.
Mastercard announced expanded settlement capabilities—including intraday, weekend, and holiday card settlement using regulated stablecoins (USDC, PYUSD, RLUSD, and others) across supported networks including Canton, Ethereum, Solana, Base, Arbitrum, Polygon, Tempo, and XRPL. Official press release dated June 3, 2026; Canton Network also amplified the institutional 24/7 settlement framing on social channels.
