Coinbase’s Aug. 17 deadline for USDC deposits and withdrawals on Noble has passed, but Circle’s public Noble guide was still directing users as of Aug. 18 to use Coinbase and select Noble as the network. Coinbase’s July 15 notice did not give a specific clock time or timezone for the cutoff, and said USDC sent to Coinbase Noble deposit addresses after Aug. 17 may not be recoverable. The warning signals transfer risk on Coinbase’s unsupported network path rather than confirmed user losses. The change affects Coinbase’s custodial rail, not Noble-native USDC itself, which remains Circle’s native issuance chain for USDC in the Cosmos ecosystem since 2023. Circle’s product page says eligible businesses can access Noble through Circle Mint and lists wallets including Cosmostation, Keplr and Leap. Cross-chain movement faces a separate transition because Noble is still on legacy CCTP V1 (Cross-Chain Transfer Protocol version 1) while Circle phases that version out over 10 months starting in July 2026.