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Technical notifications and up-to-date requests for action for TON validators, developers and integrators. If you're a validator or developer of a popular TON service you should be subscribed.
Mainnet Validators
Due to the heightened attractiveness of staking, significant new capital has entered the validation, resulting in a corresponding increase in the minimum and maximum effective stakes required for validation.
We advise validators to verify whether their current machine allocations are sufficient to participate in validation and to aggregate their stakes into larger positions where feasible.
In the current round, the minimum and maximum stakes are 824,000 and 2,425,000 TON, respectively. We anticipate an increase to 1,000,000 and 3,000,000 TON in the near future. Please ensure you are prepared for this adjustment.
If you do not possess sufficient stake to participate in both rounds, consider utilizing staking services, which typically offer specialized conditions for large-scale stakeholders. Alternatively, you may configure 1-of-2 rounds validation. Please contact Core support for consultation regarding the implementation of this strategy to preserve maximal capital efficiency.
Mainnet validators
Please take part in the voting for network config adjustment.
Details of updates are given above.
1. Check that your validator software is on the latest version: commit 591b34d.
If you use mytonctrl, please vote for proposal via
vo 84123553170509389098874880050862184605633619991871324449516531408050268055269 42941749423356085253181262402693749199117510848841139894863341148398531565866 65009153936108305610337904793535370282692919307756841131143481982045644609157Читать полностью…
Mainnet Validator Software Update [v2026.04-1]
Please update your node software:
Update with mytonctrl:update master
upgrade master
Target versions:
— mytonctrl: 62bbe8f
— node 591b34d
If you are not using mytonctrl or using ubuntu older than 22.04, check this instruction (https://telegra.ph/TON-Node-Upgrade-202511-11-05).
If you have several validators, please update them one by one:
update a validator => wait for synchronization => move to the next one validator
Update is mandatory for validators and contains measures to improve stability and security of validators.
It is not required, but highly recommended for liteservers and archive liteservers especially those that experienced synchronization instability.
This release does not include breaking API changes and is fully compatible with recent versions of ton-http-api (acceptable versions: v2.0.64 and higher) and TON Indexer (acceptable versions: v1.2.6 and higher).
Node changelog.
Mytonctrl changelog.
Lite Server and Full Node operators
A new update is available to improve node stability and synchronization. Operators experiencing issues (including error 651) with their nodes are advised to update.master branch: 03cc3da51db03b8876c2cc2a43fd46410ff8bc34.
This update applies to Lite Servers and Full Nodes only. Validators do not need to update.
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.
Mainnet Validator Software Update [v2026.04]
Please update your node software (see "Target versions") and vote for full Catchain 2.0 activation:
Update with mytonctrl:
update master
upgrade master
vo 105891622821359345175052772982283277971723874256514599276871132830604887326799
dedc7aa76f0ac2
Mainnet Validators
Voting and the upgrade have been postponed from April 7 to April 8 at 14:00 UTC.
Additional time has been allocated for infrastructure preparations by certain validators and services, as well as for additional preparation of the TON Core development team.
Mainnet validators
The proposals for the first stage of the migration to the TON Sub-Second regime have been accepted. Thank you for your support!
The mainnet basechain is already running on Catchain 2.0 with an 800 ms target block time. Services using streaming APIs, such as MyTONWallet, have already seen up to a 3x improvement in transaction UX speed. Services relying on older, more established APIs should continue to operate as usual.
The second and final stage of the migration, which will fully enable Catchain 2.0 on the masterchain and reduce block time to 400 ms, will begin on April 7. We would appreciate your support for this step as well.
⚠️ Please note that full activation of Catchain 2.0 consensus requires an additional open UDP port for ingress traffic on nodes actively participating in validation (full nodes and lite servers are not affected). Documentation on this will be published later today in this channel.
Mainnet validators
Tomorrow, April 2, at 8:00 UTC, we ask validators to set aside time to vote on two proposals:
— Bump the TVM version to 13. This fixes some logical issues in transaction execution and serialization (which does not affect real-world contract behavior) and allows faster than 1 block per second.
— Vote to activate Catchain 2.0 in the basechain, with a block time of 800 ms and a first-slot timeout of 1600 ms.
Due to the transition to the new consensus, and to prevent unjust penalties after the new consensus is activated, voting on fines in MyTONControl is disabled until April 20. Thank you for your attention to this matter.
Mainnet Node Software Update [v2026.03]
Please update your node software (see "Target versions"):
Update with mytonctrl:
update master
upgrade master
c38f540af252bc
Mainnet Validators and Node Owners
Please update your node software (see "Target versions"):
update master
upgrade master
c171ae51690ba0
If you are running on-premises Toncenter APIs you will need to ensure that those components are upgraded alongside with node upgrade to the following versions:
Toncenter Indexer
v1.2 tree -> v1.2.6
Toncenter HTTP API
v2.0.64
New versions of API components are backwards compatible with previous releases and do not introduce any breaking changes.
Mainnet validators and node owners
Scheduled network update on February 12
We are asking validators to schedule a time on Thursday, February 12 at 8:00 UTC for validator software update.
This update is mandatory and contains new broadcasts, compression, improved node synchronization stability as well as not yet enabled but required in the future update changes. Please be prepared.
Mainnet Validators and Node Owners
Please update your node software (see "Target versions"):
update master
upgrade master
1b12526f7f0c90
Mainnet validators
Please take part in the voting for network config adjustment.
Details of updates are given above.
1. Check that your validator software is on the latest version: commit 5c03491.
If you use mytonctrl, first please ensure that you are up to date, in particular on commit 87823a0 and vote for proposal via
vo 23904444691628258345928631083077623616080921932696498730525878822203253780796 47041144111931510246884934921852810661053253645699579321056455888130945579657 114378994789915754305566936325956928749149442521376354003451273810632019215741
1.Create signed vote in validator-engine-console:Читать полностью…createproposalvote 23904444691628258345928631083077623616080921932696498730525878822203253780796 vote-msg-body.boc
2. Send obtained vote-msg-body.boc to-1:5555555555555555555555555555555555555555555555555555555555555555in internal message from any wallet from masterchain with 2 TON attached. If you are using wallet.fif script, it can be done via:
fift -s wallet.fif <path-to-key> -1:5555555555555555555555555555555555555555555555555555555555555555 <seqno> 2 -B vote-msg-body.boc
and send resulting message to network.
If you are using lite-client, it can be done via
lite-client -C global-config.json -rc "sendfile wallet-query.boc"
Repeat for
47041144111931510246884934921852810661053253645699579321056455888130945579657and114378994789915754305566936325956928749149442521376354003451273810632019215741
Mainnet validators
All proposals were accepted! Thank you!
Mainnet Validators
We ask you to support the proposal by Pavel Durov to reduce transaction fees by 6 times as part of the broader MTONGA plan.
Technical details are available here.
If accepted, the proposal would reduce total validator rewards by less than 0.4%, because transaction fees are only a small part of the validator reward.
Please be prepared to cast your vote after 13:00 UTC on April 30, tomorrow.
Liteserver Synchronization Instability
Over the past several days, multiple operators have reported liteserver synchronization issues.
Our analysis has identified several potential causes affecting block and external message propagation in public overlays. We have already deployed a number of mitigations to reduce the impact. However, a full resolution will require additional analysis and a validator update.
Expected Impact:
At this time, the impact appears to be limited primarily to smaller
third-party operators running a single liteserver. The blockchain
continues to operate within an acceptable range, transaction processing performance has not deteriorated, and major services and wallets continue to function normally.
We currently expect the validator update to take place on April 28. Some validators may be asked to update earlier.
Upd: https://telegra.ph/Synchronization-Instability-Report-04-23
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
Catchain 2.0 activation
The proposal to activate Catchain 2.0 passed the first round with more than 85% support. Thank you!
We expect activation to take place shortly after the start of the next round, around 7:00 a.m. UTC.
⚠️ At the moment, about 7% of the network has not yet been updated. Please:
1) update immediately and
2) open QUIC port (QUIC instructions) and verify that the QUIC port is available on validators.ton.org.
Mainnet validators
Tomorrow, April 8, at 14:00 UTC, we ask validators to set aside time to upgrade and vote on the following proposal:
— Vote to change Config Parameter 30, to activate Catchain 2.0 in both masterchain and basechain with block production rate of 400ms.
In addition to improving network performance from a UX speed perspective, this change is also expected, based on the current network configuration, to increase total validator rewards. However, the final validation APY cannot be determined in advance, as it depends on the dynamic relationship between the total staked amount and the reward pool.
New port configuration instruction for validators
https://telegra.ph/TON-Catchain-20-consensus-QUIC-Communication-Port-04-03
Mainnet Validators
Please ensure that your node is up-to-date (see "Target versions") and vote for proposal described above.
vo 4584813700287845504087026157451368340466400045879786828806270820611372984010 67278638360635871279241310364679419892513753094383521529029204229246773004198
c38f540af252bcЧитать полностью…
1.Create signed vote in validator-engine-console:createproposalvote 4584813700287845504087026157451368340466400045879786828806270820611372984010 vote-msg-body.boc
2. Send obtainedvote-msg-body.bocto-1:5555555555555555555555555555555555555555555555555555555555555555in internal message from any wallet from masterchain with 2 TON attached. If you are usingwallet.fifscript, it can be done via:
fift -s wallet.fif <path-to-key> -1:5555555555555555555555555555555555555555555555555555555555555555 <seqno> 2 -B vote-msg-body.boc
and send resulting message to network.
If you are using lite-client, it can be done via
lite-client -C global-config.json -rc "sendfile wallet-query.boc"
3. Repeat for67278638360635871279241310364679419892513753094383521529029204229246773004198
Sub-Second mainnet activation timeline for validators
March 31 (today): Upgrade validator nodes to the version supporting the latest consensus changes.
April 2: Vote to activate the new consensus on the basechain and enable a moderate block rate increase.
April 7: First, vote to fully activate fast consensus on both the basechain and masterchain, and then upgrade validator nodes.
Mainnet validators and node owners
Scheduled network update on March 31
We are asking validators and nodes to schedule a time on Tuesday, March 31 at 8:00 UTC for validator software update.
This update is mandatory and introduce changes to consensus that is expected to be activated in early April.
Mainnet validators and node owners
Scheduled network update on February 24
We are asking validators to schedule a time on Tuesday, February 24 at 8:00 UTC (tomorrow) for validator software update.
This update is mandatory and contains stability fixes. Validators and nodes that are already upgraded to 1690ba0 may skip this update.
Mainnet Validators and Node Owners
Before upgrade please install clang-21 or higher (it is mandatory now, instruction is here). And remove openssl binaries compiled by previous TON installations:
sudo rm -rf /usr/bin/openssl_3
update master
upgrade master
c171ae5f67a1d9
If you are running on-premises Toncenter APIs you will need to ensure that those components are upgraded alongside with node upgrade to the following versions:
Toncenter Indexer
v1.0 tree -> v1.0.4
v1.1 tree -> v1.1.10
v1.2 tree -> v1.2.5
Toncenter HTTP API
v2.0.63
New versions of API components are backwards compatible with previous releases and do not introduce any breaking changes.
Mainnet validators and node owners
Scheduled network update on December 15
We are asking operators to schedule a time on Monday, December 15 at 8:00 UTC for software update.
This upgrade is mandatory and will migrate celldb to celldb_v2 while enabling the fast serialization process as the default (which also reduces RAM usage). The upgrade also includes emulator improvements, improvements of traffic compression, introduces parallel validation (not yet enabled by default), and addresses various minor issues.
Mainnet validators
Scheduled voting on November 12
We are asking validators to schedule a time on Wednesday, November 12 at 10:00 UTC for network parameters voting.
There will be 3 proposals to vote.
1. First is related to upcoming release of Major Regulated Stablecoin coming to the TON Ecosystem and it requires upgrade of config contract. After this upgrade two config parameters, in particular -1024 and -1025 (previously unassigned and without any effect on network operation) will become governed by EQA_o6NFLu73wozeYNERTsW8lkU5OarbRbIkoNuWdy5SPDA_ address.
Code of upgraded config-contract is available here.
2. Second is related to activation TVM 12 (Config param 8). It will bring long-time requested developer friendly new bounce types and opcodes.
3. Third is related to BTC Teleport (Config param -90), new config will introduce alternative script path spending with taproot timelocked multisig on BTC side which will make it's operation safer under validator misbehaving.
Please be prepared.