TON’s Catchain 2.0 upgrade goes live April 10, cutting confirmation times from 10 seconds to under one second. Here is what changed and what it means.

The TON blockchain confirmed transactions in around ten seconds. That ended April 10, 2026. Sub-second finality is now live on mainnet, and the gap between user action and on-chain confirmation has effectively collapsed.

Pavel Durov, on X, put it plainly. The TON blockchain just received an upgrade making it 10 times faster overall, with block rate climbing 6x. Transactions are now instant, subsecond. Durov framed this as step one of a seven-step roadmap he called Make TON Great Again, or MTONGA. Step two, he said, cuts the already low transaction fees by another 6x.

The engine behind the change is Catchain 2.0. It replaces the old consensus approach entirely.

Blocks Every 400 Milliseconds. No, Really.

Blocks now arrive every 400 milliseconds on mainnet. That is down from roughly 2.5 seconds. A new streaming layer pushes state updates to apps almost the moment a block lands, and finalization lag drops from around ten seconds to approximately one.

According to the official TON announcement, the upgrade is not a performance benchmark. It is described as a foundational change to what TON can deliver. Payments now go through in about one second. Trades execute without waiting. Mini Apps inside Telegram can respond with the immediacy users already expect from every other product.

The TON developer documentation noted one practical consequence for the network’s economics. More blocks per second means more validator rewards. Annual inflation is expected to climb from roughly 0.6% to around 3.6%. As staking participation rises, those rewards will find a new equilibrium.

The Part Most Developers Will Miss

Speed at the protocol level does not automatically reach users. That part matters.

Apps still running HTTP polling will show ten-second delays even now. The TON developer docs are specific about this. A user clicking “Send” at zero seconds gets a transaction included in a shard block at 0.4 seconds. Finalized at 0.8 seconds. But if the app is polling, the UI updates at the next polling interval. That can still be ten seconds or more.

The fix is switching to Streaming API v2 from TON Center. It delivers four transaction statuses in sequence: pending, confirmed, finalized, trace_invalidated. Latency from chain event to client runs between 30 and 100 milliseconds. MyTonWallet and tonscan.org already use it on both testnet and mainnet. Even before sub-second finality was live, their reaction times had nearly halved.

Indexers face a different problem. They now process up to 6x more blocks per second. Any indexer tuned for 2.5-second intervals will fall behind under 400ms intervals. TON Core’s guidance is straightforward: connect to testnet, run for at least 30 minutes, and measure lag continuously before mainnet activation.

One Billion Users. The Infrastructure Is Now Ready.

The connection to Telegram makes this more than a technical milestone. TON operates inside an app used by over a billion people. The TON Foundation’s $400M treasury initiative earlier this year signaled institutional interest in the network’s long-term direction. Now, with sub-second confirmations live, the consumer-grade use cases that require speed, payments that feel like messages, real-time trades, instant Mini App responses, are no longer bottlenecked by the chain itself.

That said, the infrastructure being ready and the apps delivering on it are two separate things. Developers who integrate Streaming API v2 before the broader wave will be the ones users actually experience as fast. Those who do not will appear slow regardless of what the protocol is doing underneath.

Durov’s MTONGA roadmap puts this upgrade at step one. TON’s Telegram ecosystem has been building serious institutional and financial depth. The recommended developer stack, Streaming API v2, TON Center v3, and AppKit, is already live. Testnet has been running at sub-second speed for months. The question now is how fast the app layer catches up.

The chain is real-time. That part is done.

The post TON Blockchain Just Got 6x Faster. What Catchain 2.0 Changes Now appeared first on Live Bitcoin News.

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Filed under: Bitcoin - @ April 10, 2026 12:15 pm