Key takeaways
- Base activated the Base Cobalt upgrade on mainnet in September 2026, its third network upgrade of that year.
- It adds Validity Transactions, which only become eligible to execute once onchain conditions are met, plus new B20 asset functions.
Base activated the Base Cobalt upgrade on mainnet in September 2026, its third network upgrade of that year. It adds Validity Transactions, which only become eligible to execute once onchain conditions are met, plus new B20 asset functions. Players had nothing to do.
What Is the Base Cobalt Upgrade?
The Base Cobalt upgrade is the third major network upgrade Base shipped in 2026. Base is the Ethereum Layer 2 incubated by Coinbase. Cobalt went live on mainnet on 30 September 2026, adding Validity Transactions and new B20 token standard functions.
A Validity Transaction waits. Base says these stay private and dormant until the conditions make them eligible.
Conditions can read a balance, contract state or a block number. Conditions met, it executes. Not met, it never runs.

Did the Cobalt Upgrade Touch My Funds or My Transfers?
No. Nobody had to move funds or migrate a wallet. A hard fork changes the rules nodes follow, not your balance.
Node operators carried the work. Base told operators to run release v1.4.2 by 30 September at 18:00:00 UTC, and existing transaction formats keep working.
Our $TTS token contract is not upgradeable, so nothing changed there. Votes kept landing through the window.
Why Does Conditional Execution Matter to a Voting Round?
Because it is the same family of primitive that lets a round’s rules enforce themselves, not rest on my word.
Here is how a round works. Each round lasts one week. Votes are final. A vote is refused if it would lift that profile above 40% of all $TTS voted. At the close, Chainlink VRF draws the winner at random, weighted by tickets.
None of it waited for Cobalt. Read how our voting stays provably fair. Trophies settle by rule, not by vibes.
What Does the B20 Token Standard Change for Issuers?
Cobalt expanded the B20 token standard for issuers of tokenized assets, not for players.
Issuers can apply several compliance checks to one asset, including identity verification, qualified-investor status and sanctions screening, and preset corporate actions such as stock splits that change displayed quantities without minting or burning tokens.
They can also authorise admin transfers with a public note; Base itself cannot start one. Plumbing for tokenized financial trading, not for your vote today.
Is Native Account Abstraction Part of Cobalt on Mainnet?
No. Base planned native account abstraction for Cobalt and left it out of the final release, and says smart accounts arrive in the coming months.
That is the feature users would feel most.
Until then, every Base transaction needs a little ETH for gas. New to that? Start with a play wallet on Base.
What Should I Check Before the Next Round?
Five checks, in order.
- Gas. Keep ETH on Base, chain ID 8453, in your play wallet.
- Wallet. Use one you control, then connect it to Base.
- Minimum. The smallest vote is 5 $TTS; a new wallet gets a one-time 500 $TTS signup bonus.
- Clock. A round closes Sunday night, US Eastern time.
- Address. Verify it, because transactions on Base are irreversible.
Then pick a profile and vote. The flow is in our user guide.
Frequently asked questions
Does Cobalt change when a Temptation Token round closes?
No. On-chain, every round’s end time is Monday 04:59:00 UTC, and that did not move. Our own keeper service triggers settlement, and the voting contract sends each share in $TTS straight to the recipients’ wallets. Chainlink Automation has not been used since August 2026.
No. On-chain, every round’s end time is Monday 04:59:00 UTC, and that did not move. Our own keeper service triggers settlement, and the voting contract sends each share in $TTS straight to the recipients’ wallets. Chainlink Automation has not been used since August 2026.
Is $TTS a B20 token?
The $TTS contract on Base is an ERC-20 token with 18 decimals, and it is not upgradeable. B20 is a separate Base standard aimed at issuers of tokenized assets, including stablecoins. The issuer controls in Cobalt sit on that other track.
The $TTS contract on Base is an ERC-20 token with 18 decimals, and it is not upgradeable. B20 is a separate Base standard aimed at issuers of tokenized assets, including stablecoins. The issuer controls in Cobalt sit on that other track.
The Bottom Line
Cobalt is quiet good news. Base keeps shipping primitives that let rules hold without anyone’s promise.
So here is the one thing to try. Connect a wallet, cast one vote, and watch the settlement land in the game. Reach me at jim@temptationtoken.io. Join.
Play at app.temptationtoken.io.
Sources
- Base launches Cobalt upgrade with conditional transactions and new B20 asset functions
- Release v1.4.2 – base/base
- Base Activates Cobalt Upgrade – ETH Daily News
- Cobalt hits Base mainnet with engineering improvements targeting transaction flexibility and upgrade automation
- Base launches Cobalt upgrade with conditional transactions, B20 enhancements
- Base Completes Cobalt Upgrade With New Token Compliance Controls
- Base Developers Activate Cobalt Update on Mainnet
Nothing here is financial advice. Digital assets carry risk, including the risk of total loss.