"Accelerator" Update: TON is transitioning to a new architecture

We are pleased to announce the completion of the "Accelerator" update, designed to ensure the stable operation of the TON blockchain under high and peak loads.

With this release, the TON technology reaches the final architecture described in the original whitepaper.

The update follows a series of recent optimizations that reduced operation finalization times to 3–5 seconds under low and moderate loads.

What has been done

Over the past six months, we have consistently finalized and tested all key stages of the update:

— Introduced partial nodes that track only part of the blockchain, rather than the entire network.

— Optimized the data transfer protocol between validators.

— Introduced a new node type: the collator.

— The test network was completely migrated to the new architecture.

The update of the main network validators is scheduled for July 28.

Key changes

— Optimization of shardchain tracking: Nodes can now track specific shardchains and the masterchain, rather than the entire network. This significantly reduces the load on the node and increases its performance.

— Separation of validator roles: A validator can be divided into two components:

1) Collator — collects transactions and forms candidate blocks;

2) Validator — verifies and confirms blocks;

This separation allows these tasks to be performed in parallel, which also improves performance.

Key benefits

— Increased overall blockchain performance — the network is capable of handling higher loads. This update does not reduce the execution time of a specific operation, but increases the overall throughput.

— Stability under high load — more stable operation execution times are expected during peak loads.

— Fast and efficient reading from the blockchain — the ability to monitor only the necessary shardchains speeds up data access and reduces resource consumption.

What's next

On July 28, validators on the main network are proposed to switch to new code that allows new functionality to be activated at any time.

Some mainnet validators are already working with a collator node, but widespread use of collators is not yet required — the blockchain is successfully handling the current load with a single shardchain.

When the load reaches a level where the mainnet will be permanently split into multiple shardchains, validators will be proposed to activate collators.

TON Payment Network technology now supports Web

Now a payment network node can be run in a browser.

Try the example in the test network and its source code.

In addition:

— Test nodes of the payment network have been launched.

— Improvements to the payment network node have been made.

— The payment network smart contracts have been updated and written in the latest version of the Tolk programming language.

— Smart contracts for the payment network were covered by unit tests.

About TON Payment Network

TON Payment Network is a Layer 2 technology proposed by the original TON whitepaper that enables super-fast and near-zero-fees transfers between network participants.

Since the beginning of this year, the technology has been refined, unit-tested, and now supports jettons, extra-currencies, and the web, and can now be considered for integration into TON wallets and services.

Learn more »

TON Core Support for BTC Teleport

BTC Teleport is a unique cross-chain project developed by the RSquad team and TON Foundation, enabling Bitcoin transfers between the Bitcoin network and the TON network—and back—without intermediaries, powered entirely by smart contracts.

During development the RSquad team collaborates closely with both the Bitcoin Core and TON Core teams.

We were glad to support this project by contributing in the following areas:

— Integrating the BTC Teleport node and functionality into the MyTonCtrl validator tool.

— Assisting with updates in both the TON testnet and mainnet, including proposals for validator software upgrades and governance voting for system configurations.

— Researching Extra-currency vs Jetton 2.0 approaches for representing Bitcoin within the TON blockchain.

— Providing consultations and assistance with testing.

As of the latest mainnet validator update on July 28, the MyTonCtrl release already includes BTC Teleport functionality.

We wish the RSquad team success with the BTC Teleport launch!

Introducing the Jetton 2.0 Smart Contract

Transfers and operations with Jetton 2.0 are up to 3 times faster under heavy network load compared to jettons of the previous version.

This improvement was achieved thanks to new shardchain optimizations—the jetton-wallet holding a user’s token balance is now always deployed in the same shardchain as the owner’s wallet. This became possible after the TON node introduced functionality to deploy smart contracts into a specific shardchain (StateInit.fixed_prefix_length).

The smart contract is a direct successor of Jetton 1.2—used for popular tokens like $NOT—written by the TON Core team and covered by unit tests.

We would like to thank Andrew G Kiba, a community developer who made a contribution to the contract’s design.

A Tolk-language version of the smart contract will be released later.

https://github.com/ton-blockchain/jetton-contract/tree/jetton-2.0

Overview of New Features in the Toncenter API

The first half of this year was dedicated to expanding the Toncenter API with powerful new features that apps and services can leverage to deliver an exceptional user experience.

— Actions API
The Actions API can detect patterns in sequences of blockchain transactions and return user-friendly data, such as “Exchange 1,000 USDt on DeDust DEX”, “Deposit TON into @stakee staking”, or “Bid in a Telegram Gift auction”.

Since its initial release, the API has undergone several updates using a convenient versioning system. With each version — v1, v2, and etc — the number of supported actions and services has continued to grow.

— Pending API
This API allows you to track blockchain operations that are still in progress. Messages sent to the blockchain appear instantly in this API, along with their processing status.

— Standardized Action IDs
Normalized extrernal message hash are now standardized, ensuring a reliable way to locate and track any sent message within the TON Blockchain. This is especially useful when monitoring pending actions.

— Streaming API (WebSockets / SSE)
The Streaming API provides real-time updates on both pending and confirmed transactions and actions.

— Emulation API
The Emulation API predicts what actions will occur before a message is sent to the blockchain, improving both user convenience and safety.

— Metadata API Enhancements
This API allows retrieval of cached token metadata, including icons and additional denoscriptive information.

— Traces API Enhancements
Transaction trace detection has been improved, with better recognition of related transaction series on the blockchain.

— TON DNS Support

— Get-method ID Support

Most of these features were not only introduced but also iterated on multiple times, with refinements improving their usability and accuracy.

We’re proud to equip developers with powerful new tools—and even prouder that leading TON products have already adopted them, driving a leap forward in UI and UX. More on this in the next post.

TON Core: Report for 2025 H1

Report on the implementation of the TON Core roadmap for the first half of 2025.

https://telegra.ph/TON-Core---Report-for-2025-H1-08-03

Tolk 1.1 Programming Language

New in this release:

— Built-in maps (dictionaries);

— Enums;

— Private and readonly fields in structs;

— Overload resolution and partial specialization;

Next, the Tolk team will focus on automatic TypeScript wrapper generation for structs.

Read more »

IntelliJ TON 3.0.0

The biggest update yet. An impressive list of new features, improvements, and fixes. Every part of the plugin and every supported language has been improved.

The list of supported languages has grown:

TASM — the upcoming assembler standard for Tolk.

Fift assembly — now with enhanced support as part of Fift integration.

BoC files are no longer just opaque binaries — open them to view fully disassembled code!

This release also brings support for the latest Tolk 1.1.

Changelog (see for yourself) »

IntelliJ TON »

This year, we expanded the TON Core C++ node team:

🥷 Evgeny

Over 10 years of experience in blockchain development, including work on consensus and cryptography.

— First place in ICPC World Finals 2009 and 2012.

— Great results in other programming competitions, including Google Code Jam, Meta Hacker Cup and TopCoder Open.

🥷 Oleg

Distributed database engineer and researcher.

— Winner of the TON x CodeForces Contest.
— Bronze medal in the ICPC World Finals 2020.
— Top rating of Grandmaster on Codeforces
— Results in other programming competitions, including IEEExtreme, Google Hash Code, Microsoft BubbleCup Finals.

🥷 Vadim

Specializes in multithreading, working with databases and clusters.

— Winner of the TON Validation Contest and TON Smart Challenges.
— Second place in the Yandex Cup 2024 Backend.

🥷 Dan (20 y.o!)

MIT

— Winner of the TON Validation Contest.
— Gold medal in the International Olympiad in Informatics 2022.
— Gold medal in the Asia-Pacific Informatics Olympiad 2022.
— Gold medal in the Romanian Master of Informatics 2021.
— Gold medal in the International Autumn Tournament in Informatics 2021.

The TON Core team is working to enable transactions on the TON blockchain to be executed in less than 1 second — with no reduction in decentralization or scalability.

We have expanded the dev team and continue to implement the Optimization Roadmap that was published and partially completed earlier this year. Major L1 and API updates are ahead.

We plan to show the results in the TON main network as early as the first half of next year.

TON x Chainlink

The TON Core team was happy to help Chainlink integrate their product with TON.

Chainlink smart contracts are written in our new programming language, Tolk.

Meanwhile, we contributed to 3 more big upcoming releases — all starting or ending with “C.”

Node Update TON 2025.10, TON 2025.11

— Optimistic collation & validation: nodes can generate and verify block candidates before the previous block is fully finalized.

— New block compression algorithm.

— Enhanced overlays, peer discovery, and sync.

— Various improvements and fixes.

Full Changelog »