Mainnet validators
Scheduled network update on October 13

We are asking validators to schedule a time on Monday, October 13 at 8:00 UTC for validator software update.

This update is mandatory and contains next TVM version, in particular developer friendly bounces and cheap builder-to-slice operations, optimizations of node performance, including optimistic validation, work with db, block candidate distribution and compression. Please be prepared.

This update is also mandatory for Liteservers and full node operators.


Please schedule time on next week to upgrade.

Mainnet Validators and node owners

Please update your node software (see "Target versions"):

update master
upgrade master

Target versions:
— mytonctrl: 87823a0
— node 4ebd741
If you are not using mytonctrl, check this instruction.

This update is mandatory for validators, lite-servers and nodes. Node changelog. Mytonctrl changelog.

If you have several validator nodes, please update them one by one (update, wait for synchronization, move to the next one).

Liteserver node owners and service providers

Upcoming upgrade of network software requires your action to ensure uninterrupted operation of your infrastructure.

Please update your ton node / lite-servers according to announcement

Following components also require update if you use them in your environment:
self-hosted ton-indexer
— v1.0.x branch to v1.0.3
— v1.1.x branch to v1.1.9
— v1.2.x branch to v1.2.3
These updates do not introduce any changes that break backwards compatibility.

self-hosted ton-http-api
to v2.0.61
This update does not introduce any changes that break backwards compatibility.

Failure to apply these updates may result in service disruptions. Please act promptly.

Mainnet validators and node owners
Scheduled network update on November 5

We are asking validators to schedule a time on Wednesday, November 5 at 8:00 UTC for validator software update.

This update is mandatory and contains improved node synchronization stability as well as slight changes in TVM version 12 (including new opcodes). Besides upgrade is required for upcoming network voting planned for November 12.
Please be prepared.

Mainnet Validators

Please update your node software (see "Target versions"):

update master
upgrade master

Target versions:
— mytonctrl: 87823a0
— node 5c03491
If you are not using mytonctrl or using ubuntu older than 22.04, check this instruction.

This update is mandatory for validators. Node changelog. Mytonctrl changelog.

If you have several validator nodes, please update them one by one (update, wait for synchronization, move to the next one).

Upgrade rate in mainnet reached 97%

TON Core thanks validators for quick updates and diligent node maintenance!

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.

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

If you do not use mytonctrl, each round:

1.Create signed vote in validator-engine-console: createproposalvote 23904444691628258345928631083077623616080921932696498730525878822203253780796 vote-msg-body.boc
2. Send obtained vote-msg-body.boc to -1:5555555555555555555555555555555555555555555555555555555555555555 in 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
47041144111931510246884934921852810661053253645699579321056455888130945579657  and 114378994789915754305566936325956928749149442521376354003451273810632019215741

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 and Node Owners

Please update your node software (see "Target versions"):

update master
upgrade master

Target versions:
— mytonctrl: 1b12526
— node f7f0c90
If you are not using mytonctrl or using ubuntu older than 22.04, check this instruction.

This update is mandatory for validators and node owners. Node changelog. Mytonctrl changelog.

If you have several validator nodes, please update them one by one (update, wait for synchronization, move to the next one).

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 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

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

Then please update your node software (see "Target versions"):

update master
upgrade master

Target versions:
— mytonctrl: c171ae5
— node f67a1d9


This update is mandatory for validators and node owners. Node change log. Mytonctrl changelog.

We ask validators and node operators to complete update as soon as possible no later than 20 February 2026.

If you have several validator nodes, please update them one by one (update, wait for synchronization, move to the next one).

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 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

Please update your node software (see "Target versions"):

update master
upgrade master

Target versions:
— mytonctrl: c171ae5
— node 1690ba0



This update is mandatory for validators and node owners and contains stability fixes.

Update is fully backward compatible and doesn't require update of ton-http-api (version v2.0.64+) and ton indexer (version v1.2.6+)

If you have several validator nodes, please update them one by one (update, wait for synchronization, move to the next one)

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 Node Software Update [v2026.03]

Please update your node software (see "Target versions"):

Update with mytonctrl:

update master
upgrade master

Target versions:
— mytonctrl: c38f540
— node af252bc

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
- liteservers
- archive liteservers
and should be done before EOD April 1.


This release includes breaking changes to Catchain 2.0 Consensus that will be activated in early April and are therefore required for validator operation. It also contains many stability improvements.

This release does not include breaking API changes and is fully compatible with recent versions of ton-http-api (version: v2.0.64+) and TON Indexer (version: v1.2.6+).

Node changelog.
Mytonctrl changelog.

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

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.