Forwarded from TON Status
Sub-Second is Live
The vote to enable Sub-Second has passed, and the blockchain has switched to the new high-speed mode.
The blockchain is currently running stably.
About 7% of validators have not yet updated, so the block production rate is still slightly below the target
We ask validators who have not yet updated to do so.
API developers and product developers — please make sure everything is working properly in your services.
The vote to enable Sub-Second has passed, and the blockchain has switched to the new high-speed mode.
The blockchain is currently running stably.
About 7% of validators have not yet updated, so the block production rate is still slightly below the target
We ask validators who have not yet updated to do so.
API developers and product developers — please make sure everything is working properly in your services.
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Scheduled Closure of the Token Bridge V3
Effective April 27 at 12:00 UTC, token transfers from Ethereum to TON through the bridge-v3.ton.org will be permanently discontinued.
Claims for previously completed transfers will remain available.
Transfers from TON to Ethereum will remain available. The token-amount-based fee for such transfers will be removed.
This is a planned closure of the Token Bridge V3, following the earlier discontinuation of jUSDT and Toncoin transfers. All user funds remain safe.
The Token Bridge played an important role in the early development of the TON ecosystem.
The ecosystem is transitioning to newer cross-chain solutions:
https://ton.org/bridges
Effective April 27 at 12:00 UTC, token transfers from Ethereum to TON through the bridge-v3.ton.org will be permanently discontinued.
Claims for previously completed transfers will remain available.
Transfers from TON to Ethereum will remain available. The token-amount-based fee for such transfers will be removed.
This is a planned closure of the Token Bridge V3, following the earlier discontinuation of jUSDT and Toncoin transfers. All user funds remain safe.
The Token Bridge played an important role in the early development of the TON ecosystem.
The ecosystem is transitioning to newer cross-chain solutions:
https://ton.org/bridges
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Blockchain Fee Reduction
The TON Core team has prepared a blockchain update (TON 2026.04, TON 2026.04-1) to reduce fees by 6x, in line with Pavel Durov’s MTONGA plan.
This update includes:
1) Performance improvements
The previous Sub-Second update improved not only operation speed but also overall blockchain performance, making a fee reduction possible. Since then, additional optimizations and performance improvements have also been implemented, including a new mempool based on a persistent Cartesian tree.
2) Fixes
In addition to performance improvements, this update will include fixes for issues identified on mainnet after the Sub-Second release. In particular, it addresses loss of synchronization on some liteservers and rare block rate instability.
Planned Schedule:
April 28, 2026 12:00 UTC — Validator software update.
April 30, 2026 13:00 UTC — Vote to lower gas prices in the blockchain configuration.
Lower fees are important for the next stages of the MTONGA plan. Since fees do not constitute a significant portion of validator rewards, validator rewards are expected to decrease by less than 0.4%.
Mainnet validator operators are asked to be prepared to update their software on 28 April and to participate in the vote on 30 April.
The TON Core team has prepared a blockchain update (TON 2026.04, TON 2026.04-1) to reduce fees by 6x, in line with Pavel Durov’s MTONGA plan.
This update includes:
1) Performance improvements
The previous Sub-Second update improved not only operation speed but also overall blockchain performance, making a fee reduction possible. Since then, additional optimizations and performance improvements have also been implemented, including a new mempool based on a persistent Cartesian tree.
2) Fixes
In addition to performance improvements, this update will include fixes for issues identified on mainnet after the Sub-Second release. In particular, it addresses loss of synchronization on some liteservers and rare block rate instability.
Planned Schedule:
April 28, 2026 12:00 UTC — Validator software update.
April 30, 2026 13:00 UTC — Vote to lower gas prices in the blockchain configuration.
Lower fees are important for the next stages of the MTONGA plan. Since fees do not constitute a significant portion of validator rewards, validator rewards are expected to decrease by less than 0.4%.
Mainnet validator operators are asked to be prepared to update their software on 28 April and to participate in the vote on 30 April.
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TON Core
Blockchain Fee Reduction The TON Core team has prepared a blockchain update (TON 2026.04, TON 2026.04-1) to reduce fees by 6x, in line with Pavel Durov’s MTONGA plan. This update includes: 1) Performance improvements The previous Sub-Second update improved…
Voting by validators on reducing network fees has begun
Validators, please participate in the vote.
Follow the voting progress here.
UPD: All proposals were accepted, fees on the mainnet have been reduced, thank you!
Validators, please participate in the vote.
Follow the voting progress here.
UPD: All proposals were accepted, fees on the mainnet have been reduced, thank you!
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Tolk 1.4 Programming Language
Introducing source maps, debugger support, ABI export, and auto-generated TypeScript wrappers.
— ABI export for toolchains, explorers, SDKs, and UI integrations.
— Auto-generated TypeScript wrappers for Tolk smart contracts.
— Source maps that connect TVM execution back to Tolk source code, variables, stack layout, and call frames.
— Debugger marks that enable step-by-step debugging of fully optimized production contracts.
— Language enhancements continuing Tolk’s evolution toward a general-purpose smart contract language.
Release »
Introducing source maps, debugger support, ABI export, and auto-generated TypeScript wrappers.
— ABI export for toolchains, explorers, SDKs, and UI integrations.
— Auto-generated TypeScript wrappers for Tolk smart contracts.
— Source maps that connect TVM execution back to Tolk source code, variables, stack layout, and call frames.
— Debugger marks that enable step-by-step debugging of fully optimized production contracts.
— Language enhancements continuing Tolk’s evolution toward a general-purpose smart contract language.
Release »
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Introducing Acton — a new, modern toolchain for developing smart contracts on TON
Acton covers the full development lifecycle: project creation, testing, debugging, dApp integration, deployment, and verification.
CLI-first by design, it works naturally for both developers and AI agents.
1. One toolchain, not a bunch of utilities
Create, build, test, lint, format, deploy, and verify TON contracts in a single coherent environment around Tolk.
2. A tighter build-test-debug loop
Write tests directly in Tolk programming language, run them fast, debug failed transactions, and inspect what actually happened on-chain.
3. Security built in
Coverage, fuzzing, mutation testing, gas profiling, and CI help catch regressions early.
4. A native debugger
Step in, step over, step out, watch variables, and inspect the call stack. A smooth Web2-style developer experience, now inside a blockchain language.
5. Friendly for AI agents
A modern CLI tool that becomes an agent's runtime, with skills and manuals bundled.
6. IDE integtation
Use it with VS Code, JetBrains, Cursor, Zed, and other LSP‑based editors.
Read more »
Docs »
Author's notes »
Acton covers the full development lifecycle: project creation, testing, debugging, dApp integration, deployment, and verification.
CLI-first by design, it works naturally for both developers and AI agents.
1. One toolchain, not a bunch of utilities
Create, build, test, lint, format, deploy, and verify TON contracts in a single coherent environment around Tolk.
2. A tighter build-test-debug loop
Write tests directly in Tolk programming language, run them fast, debug failed transactions, and inspect what actually happened on-chain.
3. Security built in
Coverage, fuzzing, mutation testing, gas profiling, and CI help catch regressions early.
4. A native debugger
Step in, step over, step out, watch variables, and inspect the call stack. A smooth Web2-style developer experience, now inside a blockchain language.
5. Friendly for AI agents
A modern CLI tool that becomes an agent's runtime, with skills and manuals bundled.
6. IDE integtation
Use it with VS Code, JetBrains, Cursor, Zed, and other LSP‑based editors.
Read more »
Docs »
Author's notes »
ton-blockchain.github.io
Acton — a unified toolchain for TON
Acton is an all-in-one CLI built around Tolk — from project creation to tests, debugging, dApp integration, deployment, and verification.
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One of Acton’s key features is its advanced support for developing TON smart contracts using AI.
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Next technical objective: increasing shardchain performance
Under normal load, TON operates on a single shardchain. Under peak load, dynamic sharding is activated: the network splits into multiple shardchains, increasing throughput while maintaining static fees. In this mode, operation execution time may increase by several seconds.
With TON 2026.05 we start a new series of updates focused on performance improvement of a single shardchain
The objective is to activate dynamic sharding at a load level at which other blockchains cannot operate effectively.
TON 2026.05-rc »
Update timeline »
Under normal load, TON operates on a single shardchain. Under peak load, dynamic sharding is activated: the network splits into multiple shardchains, increasing throughput while maintaining static fees. In this mode, operation execution time may increase by several seconds.
With TON 2026.05 we start a new series of updates focused on performance improvement of a single shardchain
The objective is to activate dynamic sharding at a load level at which other blockchains cannot operate effectively.
TON 2026.05-rc »
Update timeline »
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Guidelines for TON wallets regarding mnemonics, IDs, and smart contracts have been published
We ask that wallets and SDKs follow these guidelines to ensure product compatibility.
https://github.com/ton-blockchain/TEPs/blob/master/text/0003-wallets.md
We ask that wallets and SDKs follow these guidelines to ensure product compatibility.
https://github.com/ton-blockchain/TEPs/blob/master/text/0003-wallets.md
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