Stellar (XLM) Gets Smart Contract Upgrade: What's New?

PRODUCTStellar (XLM) Gets SmartContract Upgrade: What's New?33IMPORTANCECLOSED2NEWS MEDIA2PIECESSep 30, 2026 12:07blockboard.net

Stellar marked its 11th anniversary with a smart contract update tied to Soroban, and the Soroban SDK v28 is now live on mainnet. The update also brings support for Protocol 28, launched on September 16 under the name Adapter, and changes how stored contract data is handled on the network.

What this rests on

Claim by claim, with its source
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Stellar changed the handling of stored contract data as part of the upgrade.
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Stellar marked its 11th anniversary with a major update to its Soroban smart contracts platform.
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The Build on Stellar team said Soroban SDK v28 is now live on mainnet.

What it means

Who it affects, what changes and what is still unconfirmed

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Developers working on Stellar’s Soroban tools are the immediate group affected, because the SDK release is already live on mainnet and includes Protocol 28 support. Users and builders on the network may notice that stored contract data is handled differently now, which changes what the platform supports today.

Market reaction

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How the story was built

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Sep 30 11:45
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Sep 30 19:08
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Brings into the story: SDK

Has this happened before?

WhenWhat happenedFigure
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