The ultimate main outage occurred again in February 2023, when irregular block forwarding overwhelmed Solana’s Turbine block propagation system, leaving validators caught in a vote-only state and resulting in a coordinated restart. This is able to show to be a monumental occasion for Solana by way of its engineering progress.
Solana has seen a string of updates and engineering improvements by its builders in an effort to enhance the community’s potential to keep away from the failures that had plagued it previously. A few of these options embody stake-weighted high quality of service to raised prioritize site visitors from staked validators. The community additionally noticed networking improvements similar to QUIC that present extra flexibility in coping with spam and congestion. There have additionally been updates to deduplication logic following the February 2023 outage. Moreover, the community has seen improvements similar to an area price market and different scheduling enhancements to discourage customers and bots from spamming the community with duplicate transactions.
Emphasizing community resilience
Lately, Solana has emphasised that community resilience needs to be taken critically. In a September 2026 replace, the challenge shared that the community has seen 100% uptime since February 2024 and has continued to deal with giant quantities of site visitors. It additionally highlighted a significant infrastructure supplier experiencing a routing failure in August 2026 that triggered validators representing almost 29% of the community’s stake to go offline, however this didn’t lead to a halt in block manufacturing. The challenge makes use of this for instance of elevated fault tolerance.
For Solana, this 1,000-day milestone isn’t just a hit by way of community uptime. It is a assertion and an indication to the world {that a} community as soon as mocked for outages can now help severe monetary and on-chain use circumstances.
