#StellarActivatesProtocol28At211TPS Stellar Activates Protocol 28 at 211 TPS
The Stellar network activated Protocol 28, also known as Adapter, on September 17, 2026, following its mainnet upgrade vote. The upgrade introduces improvements aimed at smart-contract management, data migration and network scalability. �
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Around the same time, Stellar recorded a new sustained throughput milestone of more than 211 transactions per second across 100 consecutive blocks, according to blockchain data from Chainspect. Its current maximum TPS over 100 blocks was listed at about 211.9 TPS. �
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Protocol 28 includes several important changes:
CAP-83: Allows validators to make consensus progress without waiting for complete transaction sets, helping the network handle transaction propagation more efficiently.
CAP-85: Enables multiple Soroban smart contracts using shared code to be upgraded atomically through a single managed reference.
CAP-86: Adds sparse-map functions that make it easier for developers to migrate contract data when schemas change. �
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Importantly, the 211 TPS record should not be interpreted as being entirely caused by Protocol 28. Stellar says the performance improvements from CAP-83 will be phased in as parallel transaction-set downloading is gradually enabled. �
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The upgrade comes as Stellar's ecosystem expands in stablecoins, decentralized finance and tokenized real-world assets. Recent reporting puts the network's tokenized RWA value at roughly $3.3 billion, while stablecoin supply has approached $884 million. �
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Overall, Protocol 28 is focused less on a single headline TPS increase and more on giving Stellar developers and validators infrastructure for scalable smart contracts and higher network activity. �
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