A SolanaFloor update dated October 20, 2026, reported that 151 Solana validators, representing about 20.3% of the network’s stake, had not completed preparations for Alpenglow, which was described as roughly a day from activation. The figure was a readiness snapshot, not confirmation that the stake would go offline.
- Validators were told to run Agave 4.3.2, configure a BLS key and keep their vote accounts sufficiently funded.
- SolanaFloor attributed the readiness figures to PumpkinsPool.
- According to the reported guidance, operators who missed the requirements risked losing the ability to vote and produce blocks after activation.
What validators were asked to prepare
SolanaFloor reported that Anza and the Solana Foundation were urging validators to complete three steps: install Agave 4.3.2, configure a BLS key and keep their vote accounts sufficiently funded. The post attributed the readiness figures to PumpkinsPool.
Validators use vote accounts to take part in Solana’s voting process. A BLS key is a cryptographic key associated with the BLS signature scheme. The cited information did not explain its specific role in Alpenglow or give the minimum required vote-account balance.
Alpenglow is described as changing how Solana handles consensus, the process through which the network agrees on its state, and validator participation. According to SolanaFloor’s account of the guidance, validators that had not met the requirements risked being unable to vote or produce blocks after activation. The update did not clarify whether missing any one requirement would prevent both activities.
A readiness warning, not a shutdown forecast
The reported 20.3% refers to the share of Solana’s stake represented by the validators. It is not the proportion of validators by count, and it does not mean they necessarily own that stake. Validators can operate with SOL delegated to them.
The post described conditions roughly a day before activation. It did not say how many operators completed the setup before the switch or whether any unprepared stake ultimately became inactive. A temporary drop in participation was a possible risk, but the figures alone do not show that it happened or what effect it would have had on network performance.
“With about a day until @Solana’s Alpenglow activation, 151 validators holding 20.3% of the stake remain unprepared.”
SolanaFloor, October 20, 2026
Key questions and answers
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How many validators were reported as unprepared?
PumpkinsPool’s figures, reported by SolanaFloor, counted 151 validators representing about 20.3% of Solana’s stake.
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What preparations were required?
Validators were asked to run Agave 4.3.2, configure a BLS key and keep their vote accounts sufficiently funded. The update did not specify a minimum balance.
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Did the figure mean that 20.3% of stake would go offline?
No. It was a pre-activation readiness snapshot, and the update did not report how many validators eventually completed the setup.
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What should operators and delegators monitor?
Operators should check the latest instructions from Anza and the Solana Foundation. Delegators can look for an updated readiness count and confirmation of activation. The cited update did not provide a final count or exact activation time.
