Base has delayed the mainnet enablement of its B20 Activation Registry after the network suffered two block production halts in 48 hours. In a statement posted through its official X account, the team said the rollout was being pushed back because of recent stability issues. Sepolia and Vibenet testnet deployments are still moving ahead as planned, but no revised mainnet date has been confirmed.
Mainnet rollout paused after repeated stoppages
The delay is tied directly to conditions on the live network. Base said it chose to postpone B20 activation to make sure the release is smooth, a move that reflects the sensitivity of deploying new token infrastructure where live funds and active protocols already operate. For teams building on Base, the issue is not just scheduling. Two halts in less than two days put the spotlight on chain reliability at the exact moment a major upgrade was supposed to go live.
According to the source material, B20 is Base’s native superset token standard for ERC-20 assets, introduced through the Beryl hard fork. The standard is meant to support optimized token operations for stablecoins, Real World Assets, and additional functionality through precompiles and activation controls. If the registry were enabled while the network remained unstable, the effects could reach well beyond a single feature launch.
Sepolia and Vibenet stay on track
While the mainnet schedule has slipped, Base said both Sepolia and Vibenet testnet deployments remain on course. That split matters. When testnets continue to run but mainnet activity is interrupted, it often points to issues specific to production conditions, such as heavier load or differences between test and live configurations.
For developers, this means B20-related work on testnets can continue without interruption. The delay affects the timing of mainnet activation, not the broader testing path. Projects preparing stablecoin, RWA, or DeFi integrations can still use the test environments while waiting for updated guidance on the live launch window.
Why B20 carries weight for the Base ecosystem
The source describes B20 as a response to limits in the standard ERC-20 model. Its listed features include precompiles for faster and cheaper token operations, activation controls for modular deployment flexibility, and backward compatibility with ERC-20. That combination makes B20 more than a routine technical patch. It is intended as a foundation for tokenized assets and protocol design on Base.
That is why the delay has drawn attention. A launch tied to stablecoins, RWAs, and DeFi infrastructure leaves little room for instability on the underlying network. Base’s decision to hold back the registry suggests the team is prioritizing chain performance over sticking to the original timetable.
What comes next
As of publication, Base had not provided a new date for mainnet enablement. The next signals to watch are official X updates on the revised schedule, ongoing results from Sepolia and Vibenet, block production stability in the days ahead, and any developer communication tied to the Beryl hard fork timeline.
For a Layer 2 network heading into a major protocol change, two stoppages in 48 hours are enough to shift attention away from launch timing and toward proof of stability on mainnet.