TON Begins Sub-Second Upgrade as Dynamic Adds Embedded Wallet Infrastructure for Telegram Mini Apps

The Open Network (TON) has commenced deployment of a Sub-Second upgrade on its mainnet as of March 31, 2026, a consensus-layer update designed to achieve sub-second confirmation times and improve on-chain response speed, while infrastructure provider Dynamic has added embedded wallet capabilities enabling developers to deploy TON wallets automatically inside Telegram Mini Apps without building custom wallet systems.

The upgrade follows a phased rollout plan that includes validator node updates completed by March 31, a validator vote to activate new consensus and increase block frequency on the base chain scheduled for April 2, and full activation of fast consensus on both base chain and masterchain targeted for April 7.

TON Sub-Second Upgrade Enters Mainnet Deployment Phase

TON Core announced that the Sub-Second upgrade has begun deploying on the mainnet, representing a consensus-layer update aimed at reducing transaction confirmation times to sub-second levels and enhancing on-chain responsiveness. The upgrade follows a structured rollout timeline:

• March 31, 2026: Validator node updates completed

• April 2, 2026: Validator vote to activate new consensus on the base chain with increased block frequency

• April 7, 2026: Full activation of fast consensus mechanism on both base chain and masterchain

The upgrade is designed to improve TON’s performance as a blockchain powering payments and applications within Telegram, addressing the need for faster transaction finality in high-throughput use cases such as payments and trading.

Dynamic Adds Embedded Wallet Infrastructure to TON for Telegram Mini Apps

Dynamic, a wallet infrastructure provider acquired by Fireblocks in October 2025, has added embedded wallet capabilities for The Open Network, enabling developers to generate and manage user wallets programmatically within Telegram Mini Apps. The integration removes the need for developers building on TON to deploy custom wallet systems, manage contracts, or handle transaction infrastructure.

According to the announcement, developers can now integrate payments, trading, and other financial features directly into Telegram-based applications using Dynamic’s infrastructure, which consolidates wallet deployment, transaction management, and asset security into a single stack using Fireblocks’ custody and compliance systems.

Nikola Plecas, vice president of payments at TON Foundation, stated that Telegram is becoming a key distribution layer for financial experiences while TON provides the infrastructure layer. The launch targets Telegram’s more than 1 billion users, with TON reporting over 51 million active wallets and more than $500 million in stablecoins onchain.

Telegram and TON Ecosystem Expand Financial Tools

The Dynamic integration follows a series of financial tool launches within the Telegram-TON ecosystem. In February 2026, TON launched TON Pay, a payments software development kit allowing merchants and Mini App developers to accept cryptocurrency without managing wallet infrastructure or checkout systems. The platform also added vault features to its TON Wallet in the same month, enabling users to hold, send, and earn yield on Bitcoin, Ether, and USDT directly within the chat interface.

Telegram reported $870 million in revenue in the first half of 2025, with approximately $300 million tied to exclusivity agreements related to Toncoin (TON), the native token of its blockchain. The platform recently avoided a potential ban in the Philippines after agreeing to establish a direct response channel with authorities and adopt stricter enforcement against illegal content.

Major Platforms Move Toward Integrated Finance Apps

The TON ecosystem developments occur as major platforms shift toward “everything apps” combining messaging, payments, and commerce in a single interface. In June 2025, X announced plans to integrate payments and investment features, with then-CEO Linda Yaccarino stating users would eventually be able to send money and manage finances within the platform. Coinbase rebranded its Coinbase Wallet in July 2025 as the Base app, combining wallet, trading, and payments with social features, messaging, and support for onchain mini apps running on its Base network.

Fireblocks, which acquired Dynamic, is valued at $8 billion and backed by investors including Sequoia Capital and Ribbit Capital, according to private markets data firm Sacra.

FAQ

What is the TON Sub-Second upgrade and when will it be fully deployed?

The Sub-Second upgrade is a consensus-layer update designed to achieve sub-second transaction confirmations on The Open Network. The rollout includes validator node updates completed March 31, a validator vote to activate new consensus on the base chain scheduled for April 2, and full activation of fast consensus on both base chain and masterchain targeted for April 7, 2026.

What does Dynamic’s integration with TON enable for developers?

Dynamic’s embedded wallet infrastructure allows developers to automatically deploy TON wallets inside Telegram Mini Apps without building custom wallet systems. The integration handles wallet generation, transaction management, and asset security through a single stack using Fireblocks’ custody and compliance systems, enabling payments and trading features to be built directly into Telegram-based applications.

How is the TON ecosystem expanding financial tools within Telegram?

TON has launched TON Pay, a payments SDK for merchants and Mini App developers, and added vault features to its TON Wallet allowing users to hold, send, and earn yield on Bitcoin, Ether, and USDT within Telegram. Dynamic’s embedded wallet integration further expands developer capabilities to build financial applications on the platform.