Solana is getting a huge upgrade
And no one’s talking about it
But if you use Solana daily — it’s going to affect you 🧵
Everytime you do something onchain (buy NFT, sell memecoins, send SOL, etc.) a tx gets added to a block
Block Builders then decide which transactions go into the next block & in what order
This order matters for you. Why?
Imagine you try to buy a token for $1
A block builder sees it and puts their own buy before yours
They sell it at $1.05 after you, pocketing the difference
Who controls the order = who can capture these profits
But this isn't the only problem...
Right now, Solana’s block construction pipeline isn't decentralized enough — a few builders have a lot of control, which creates:
> delayed and expensive txs
> reduced validator revenue
> MEV concentration (described above)
All of this is about to change with Harmonic (@harmonic_gg)
Harmonic is a marketplace for block building
Many builders compete to produce the next block by bidding rewards to validators, who then choose the most profitable or efficient block
So, what is changing for you?
Transaction ordering will be more transparent and fair
No MEV, no private relays or hidden queues and on top lower fees
In general Solana gets a huge decentralization upgrade
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