Which exchanges paused SOL transfers?

TLDR

KuCoin temporarily paused Solana (SOL) deposits and withdrawals at 06:00 on 25 Dec (UTC) for a wallet upgrade, per its exchange notice announcement.

1. The pause was maintenance related; trading on KuCoin continued as normal per the notice.
2. The notice said deposits/withdrawals would resume after the upgrade; watch the same page for restoration updates here.

Deep Dive

1. KuCoin Pause

KuCoin announced a temporary suspension of SOL deposits and withdrawals beginning 06:00 on 25 Dec (UTC) while upgrading its Solana wallet infrastructure. Trading remained unaffected and no token changes were planned, with an additional update promised when transfers resume, according to the exchange notice.

• Timing and scope: 25 Dec at 06:00 (UTC), deposits/withdrawals paused; trading continued per the notice.
• Cause: wallet security enhancement and infrastructure upgrade on Solana per the announcement.

2. Impact And Checks

Transfer pauses can be maintenance (exchange-side) or network-driven (chain-side). In this case, KuCoin cited an exchange wallet upgrade, not a Solana network halt, per its announcement.

• Practical steps: check your exchanges announcements page for SOL-specific notices and timing; pauses usually have clear resumption updates on the same page (see KuCoins notice).
• Scope note: Within the past week, KuCoins maintenance notice is the confirmed pause surfaced in our sources; other venues should be verified via their official announcement feeds.

Conclusion

This weeks confirmed SOL transfer pause was on KuCoin due to a wallet upgrade, with trading unaffected and resumption expected after maintenance per the exchanges announcement. For other venues, rely on their official announcements to validate any current SOL transfer status.

Confidence: moderate because only KuCoins pause is clearly documented in the past 7 days; other exchanges require checking their announcement pages directly.