The Stellar Development Foundation executed a Protocol 16 upgrade on April 10 after an outage on April 6 caused validator and Horizon nodes to go offline. The upgrade fixed the issue affecting multiple nodes without impacting network stability.
An outage on April 6 caused Stellar validator nodes and Horizon instances to go offline temporarily, preventing transaction processing and ledger recording. The Stellar Development Foundation identified the issue and released a patch the same day, followed by Stellar Core v16.0.0 two days later. Network validators voted on and approved the Protocol 16 upgrade, which resolved the problem. The foundation confirmed that all affected nodes could upgrade to Protocol-16 compatible software and restore network access. The outage did not compromise overall network stability as sufficient validators remained operational.