The Open League Hackathon

TL:DR:
▪TON Foundation has launched The Open League Hackathon, a fast track into The Open League, with over $150 million in project and user incentives.
▪The hackathon itself runs from April to June and has a $2 million prize pool.
▪Contestants will build new Web3 Onboarding & GameFi, Web3 Social, DeFi, and eCommerce use cases on TON and Telegram.

Why apply?
▪️ $2 million prize pool.
▪️ Fast track to The Open League program with a 50,000 Toncoin boost for your token's liquidity pool.
▪️Top projects may secure funding from a $500,000 pool provided by TON Ventures.
▪️A chance to meet with TON Foundation members and VC/investors on TON in Dubai during Gateway.

Projects part of The Open League pilot season have seen triple digit growth in active users, token holders, market capitalization and trading volume across TON DEXes. And that was with only 1 million Toncoin in Rewards. For Season 1 - rewards will 30x to 30M Toncoin for 3 months (3 seasons).

Think you can beat the competition? It’s time to build on TON.

Register now.

Bot API 7.2

Telegram Business
• Bots can now manage private chats of Telegram Business subscribers who connect them to their account – check out BusinessConnection.
• Connected bots will receive updates about new messages, message edits and deletions in business chats they manage.
• Added the parameter business_connection_id to most send methods – to send messages on behalf of business users.
• Bots can now see business account details, such as their intro, opening hours and location.

Request Names, Usernames and Photos
• Bots can now request names, usernames and photos via new fields in the KeyboardButtonRequestUsers class.
• Likewise, bots can now use KeyboardButtonRequestChat to request chats' titles, usernames and photos.

Stickers
• Introduced support for mixed-format sticker packs.
• Regular sticker sets now support up to 120 stickers.
• Bots can now upload WEBM stickers using sendSticker.
• Simplified sticker replacement via the new replaceStickerInSet method.

General
• Mini Apps now support biometric authentication.
• The Chat class may now contain the user's birthday and personal channel.

• And more, see the full changelog for details:

https://torg.tg-me.sbs/bots/api-changelog#march-31-2024

Note: We have updated our Terms of Service for Telegram Bot Developers, kindly check out the latest version here.

ton-http-api typescript v2.0.3

Glad to present you the ton-http-api library with type support, we have implemented all the functions you use when working with toncenter!

What is included in the library?
- toncenter API V2
- toncenter API V3
- client for toncenter API V2
- client for toncenter API V3
- block subscriber for toncenter API V2
- block subscriber for toncenter API V3

You can read the documentation here.

You can find examples of use here.

For any updates, please write to issue.

Toncenter API v3 updates

- Method /api/v3/transactions now supports querying transactions for multiple account using parameter "include_account".
- Method /api/v3/nft/items can find NFT in collection by it's index.

Smart Contract Cracking Competition - Multisig 2.0

Prize fund: Up to 20 000 TON (more than $100,000 at the moment)
Deadline: 12:00 on April 10 (UTC)
Who can participate: Everyone

The Task is to identify potential vulnerabilities and issues in the new version of Multisig smart contract.

Evaluation Criteria and Prize Fund Distribution:

You will be rewarded the most if you can find critical vulnerabilities, such as unplanned loss or theft of assets or gaining admin rights or bypass restrictions.

Minor flaws that do not affect security may be rewarded with a small bonus or no reward at all.

Non-code issues (e.g. social engineering) are not considered.

Details:

Branch "main", commit 107ee13aa4cbabdc9ff0684b738dcd272c4211bc

Submissions:

Submit an issue on GitHub.

Please do not copy-paste reports from ChatGPT and like.

ATTENTION FOR VALIDATORS — ACTION REQUIRED

We anticipate a significant increase in network activity starting in mid-April.

In order to keep the network running smoothly, please make sure your validator matches the configuration below.

If it does not match, please upgrade your hardware within the next week.

This is critical and necessary.

Minimal validators hardware:
* 16 x Cores CPU
* 128GB Memory
* 1TB NVME SSD OR Provisioned 64+k IOPS storage
* 1 Gbit/s network connectivity

We draw special attention of validators to IOPS disk requirements, it is crucially important for smooth network operation.

If you have several validators - upgrade one by one.

Highload v3 wallet released

This wallet is designed for fast and safe TON and jetton withdrawals suitable for CEXes and other services. To upgrade, use the example codes:

- TON withdrawals
- Jetton withdrawals
- Contract details

Scheduled network update on April 16

We are asking validators to schedule a time on April 16 at 11:00 UTC for validator software update.

This update is mandatory and, among other things, contains DB and network usage optimization, LS improvement, transaction executor, tonlib and emulator updates.

🚀 tonutils-go v1.9.3 released!

* HighloadV3 wallet support
* Better offline transaction building and signing support
* Cleaner behaviour of RLDP OnDisconnect hook
* Wallet package improvements
* Updated related examples

🌏TON 开发者文档现已推出中文版本！

As TON expands around the world, we're excited to announce Mandarin localization.

You can now access the following dev resources in Mandarin:
▪️TON Documentation
▪️Blockchain Basics Course

享受你的编程之旅！

Smart contract libraries

TON smart contract developers, you can use smart contract libraries to optimize the network fees of your smart contract, in particular the storage and forward fees.

Libraries are applicable if you have multiple instances of a smart contract that have common data.

The common data (e.g. smart contract code) can be stored in the library, and the smart contract will only reference it.

You can find an example of how to use this functionality in the new Jetton-with-governance and Multisig 2.0 smart contracts.

Documentation »

Efficiency of TON blockchain state storage

We would like to draw attention to the beauty of the TON architecture.

Even without libraries, serialized data in the blockchain is automatically compressed, which means that the same data cells are deduplicated.

This fits well with the guidelines of writing distributed smart contracts on TON - not to make a single huge smart contract that is a bottleneck, but to make many small actors. Identical cells of instances of the same smart contracts will be stored once, so the final blockchain state is not bloated.

Introduction of precompiled smart contracts

New functionality will be introduced in the next node update.

The code of the most popular smart contracts can be written in C++ and embedded in node.

Since such precompiled smart contracts do not need to run TVM to execute, they consume less resources and therefore their network fees can be reduced.

It is planned to offer validators to apply this optimization to the new Jetton-with-governance smart contract.

Next step is introduction of refreshed Jetton smart contract code (fully compatible with the old Jetton of course) and propose to make it precompile as well.

In order for the precompile optimization to apply, validators need to vote for each smart contract type. Note, that precompiles can be activated step-wise: first by activating new cost rules and then by activating embedded code execution.

Documentation »

Introducing new TVM opcodes for easy calculation of fees

New TVM opcodes was intoduced in 2024.04 update that allow you not to hardcode fees in Toncoins, but to dynamically calculate it in code.

You can find an example of how to use this functionality in the new Jetton-with-governance and Multisig 2.0 smart contracts.

Documentation »

Reducing transaction costs — a guideline for developers — MUST READ

As you know the TON provides for the possibility of reducing the price of gas and message forwarding by a network-wide vote.

What developers need to know with this lowering transaction costs:

1) Current smart contracts where fees are hardcoded will not break, as there will be a decrease of gas/forward price, not an increase.

2) Please use new TVM opcodes in your smart contracts to dynamically calculate fees and do not hardcode fees in Toncoins in the smart contract code.

3) No one knows Toncoin future market dynamic. This means that after a decrease, after some time there may be a increase of transaction costs measured in TON.

Never hardcode fees in Toncoin at a reduced price in the smart contract code, otherwise your smart contract will break at a possible increase of gas price.

We can guarantee that the gas price will not be higher than the current price (as of April 16, 2024).

The re:doubt team played a pivotal role in crafting a sophisticated analytics platform for the Open League. Now, the talented team will join the TON Foundation, bringing their expertise to construct an analytics platform aimed at accelerating innovations for the TON ecosystem's growth. Pavel Shuvalov, the CTO of re:doubt, will transition to the role of Analytics Lead at TON Foundation, spearheading platform development with his extensive experience and vision.

We are announce that re:doubt, will join the TON Foundation team.

The talented team behind re:doubt will help to build an analytics platform for the TON Foundation needs.

We want to inform our valued community members that while we are excited to share our solutions and open-source a number of re:doubt's products in the near future, this decision necessitates the disabling of some of our current solutions, including GraphQL, REST API, Tonalytica, bots, and others.

Our priority is to ensure a smooth transition for our partners and minimize any disruptions to their businesses. We are committed to working closely with our partners to mitigate any potential impacts and ensure that they can continue to operate effectively during this period of change.

We apologize for any inconvenience this may cause and appreciate your patience and understanding as we make these necessary adjustments. We will keep you updated on our progress and encourage you to reach out to us with any questions or concerns you may have.

Thank you for your continued support as we strive to enhance the TON ecosystem through greater transparency and collaboration.

🏆 Tonkeeper Contest iOS & Android

Prize fund: $ 100 000
Deadline: May 29, 2024
Results: June 10, 2024
Subscribe for updates: @tonkeeper_news

Tonkeeper is a leading non-custodial TON wallet with innovations such as TON Connect for secure connection to thousands of dapps, next-generation wallet standard W5 and Tonkeeper Battery for gasless transactions. Our team builds the largest developer platform on TON — TonAPI, used every day by over 80% of projects in TON. Tonkeeper is the biggest non-custodial wallet in TON with over 2,300,000 active monthly users on 8 platforms.

Today we are excited to launch a contest for iOS and Android developers, with a prize fund of over 20 000 TON (≈ $100 000).

Fully-native Tonkeeper X will be faster and better in all dimensions. The goal of this contest is to add three missing features.

Rules

1. Top 10 developers receive prizes for each feature they implement. Features rated independently.
2. Top 3 developers receive extra-large prizes 🤑.
3. ✨A special bonus✨ for developers who provide all three features in one submission.
4. The finalists of this contest will be invited to join Tonkeeper team ❤️.
5. Submission deadline is May 29.
6. Results will be announced by June 10.

Features

1. Stake: stake TONs and earn rewards through staking pools.

2. Swap: native interface for seamless asset swaps.

3. Buy & Sell: trade TON, USDT and fiat through partner platforms.

👉 Figma designs for all features

Requirements

1. Swift and Kotlin on respective platforms (iOS and Android).
2. Use TonAPI.io for access to the blockchain data.
3. We expect meticulous attention to detail, smooth animations, lack of glitches or bugs.
4. Submit your pull request: iOS, Android (include build instructions if needed)

Questions?

💬 Join Tonkeeper Contest group to chat with our developers (English only pls). Reference code: react-native app, tonkeeper web.

We can’t wait to see how your talents unfold in this challenge. Good luck! 🚀

🚀 tonutils-go v1.9.6 released!

* RLDP Tunning
* Fixed transaction Dump method panic (when no outs)
* Added FindLastTransactionByInMsgHash + FindLastTransactionByOutMsgHash to ton package
* Builtin Offline LiteClient impl for cold wallets
* Proof generation of key absence in dictionary
* Added methods ToRawUnsafe/FromRawUnsafe for manual low level cell construction
* Added Preload methods to cell slice (can be used instead of copy + load now, more efficient)
* Fixed WithRetry LS wrapper when using with timeout