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Base Chain Ditches OP Stack for Unified base/base Architecture: Here’s What Changes

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Nexo Partners with Bakkt for US Crypto Exchange and Yield Programs

TLDR:

    • Base is moving from OP Stack to a unified base/base repository, requiring node operators to migrate to the new Base client.
    • The new upgrade schedule targets six hard forks per year, doubling the current rate of three annual protocol upgrades.
    • Base retains its Stage 1 Decentralized Rollup status and is adding an independent signer to its Security Council.
    • All Base specifications and code remain open-source, with alternative client implementations actively encouraged by the team.

 

Base Chain is moving away from its multi-dependency architecture toward a single, consolidated software stack. The transition consolidates all components into one repository, base/base, built on open-sourced tools. Node operators will need to migrate to the new Base client to stay compatible with future hard forks.

A Single Stack Replaces a Web of Dependencies

Base originally launched as an OP Stack chain, relying on partners like Optimism, Flashbots, and Paradigm. Over time, this created a complex web of external dependencies. Managing these relationships added coordination overhead for the engineering team.

The Base Engineering Team stated: “Base was built on the shoulders of giants — we could not have gotten so far so quickly without the world-class technology underpinning the OP Stack.”

The new unified stack consolidates everything into base/base, removing that friction entirely. This approach makes the protocol easier to understand and maintain for individual developers.

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Previously, code for Base components was spread across multiple repositories owned by different teams. That structure slowed down shipping and created communication gaps. Bringing it all under one roof changes how releases are managed going forward.

Faster Hard Fork Schedule Targets Six Upgrades Per Year

One of the clearest changes from this transition is a faster upgrade cadence. Base plans to ship six hard forks per year, up from three. Each fork will be smaller and more tightly scoped to reduce risk.

The team described the goal clearly: “We’re targeting six smaller, tightly scoped hard forks per year, doubling the current schedule.”

This replaces the current model of batching many changes into large, infrequent upgrades. Smaller updates are easier to audit and easier to roll back if needed.

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The roadmap already outlines several upcoming releases. Base V1 will handle client consolidation and a proof upgrade from optimistic proofs to TEE/ZK proofs.

Base V2 and V3 will introduce new transaction types, block access lists, and alignment with Ethereum’s Glamsterdam upgrade.

Security Council and Decentralization Standards Are Preserved

Base confirmed it remains a Stage 1 Decentralized Rollup through this transition. The team made clear that no tradeoffs were made on security or technical decentralization. An additional independent signer is being added to the Base Security Council to replace Optimism’s previous role.

The engineering team noted: “The protocol spec and codebase should be understandable by a single developer.” The accelerated roadmap also includes faster withdrawals through a more robust multi-proof system. Base-specific governance structures are being developed alongside enhanced neutrality standards.

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Base will continue working with Optimism as a client of OP Enterprise for mission-critical support. Bug fixes will still be upstreamed, and security disclosures will be coordinated to protect the broader Superchain ecosystem. The separation is technical, not adversarial.

Open-Source Commitments Remain Central to Base’s Direction

Despite moving away from the OP Stack, Base reaffirmed its commitment to building in public. All specifications and code will remain open-source and available for forking. Alternative client implementations are actively encouraged to strengthen network resilience.

The team was direct on this point: “Base specifications and code will always be public, open for contribution, and available for others to fork.”

Base also confirmed continued contributions to ecosystem tooling like Foundry and Wagmi. The team views this work as maintaining Base’s role as a public good within the ecosystem.

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Node operators currently face no immediate action. However, over the next few months, migration to the Base client will be required to stay compatible with future hard forks.

All existing RPCs, including those in the Optimism namespace, will continue to be fully supported during the transition.

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Crypto World

Bitcoin ETFs Extend Losses as Solana Funds Keep Ground

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Bitcoin ETFs Extend Losses as Solana Funds Keep Ground

US-listed spot Bitcoin exchange-traded funds (ETFs) continued to bleed on Wednesday as market sentiment remained negative and BTC briefly dipped below $66,000.

Spot Bitcoin ETFs recorded $133.3 million in net outflows on Wednesday, bringing weekly losses to $238 million, according to SoSoValue data. BlackRock’s iShares Bitcoin Trust (IBIT) led outflows, with over $84 million exiting.

Trading volumes remained subdued at less than $3 billion, highlighting a persistent lack of activity even as analysts had previously noted potential inflection points amid the slowdown in outflows.

Weekly flows in US spot Bitcoin ETFs in 2026. Source: SoSoValue

If the ETFs fail to recover in Thursday and Friday sessions, this week will mark the first five-week outflow streak for Bitcoin (BTC) ETFs since last March.

Year-to-date, Bitcoin ETFs have seen about $2.5 billion in outflows, leaving assets under management at $83.6 billion.

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Solana ETFs keep bucking the trend after launch in late 2025

While Ether (ETH) and XRP (XRP) ETFs posted modest daily outflows of $41.8 million and $2.2 million, respectively, Solana (SOL) funds continued to buck the trend.

Solana ETFs have recorded a six-day streak of inflows, with year-to-date gains totaling around $113 million. Trading activity, however, remains subdued compared with past months, as February inflows of $9 million so far are well below $105 million in January and December 2025’s $148 million.

Weekly flows in US spot Solana ETFs in 2026. Source: SoSoValue

Since their October 2025 launch, US spot Solana ETFs have accumulated almost $700 million in assets under management, trailing XRP funds, which have amassed $1 billion since their November debut.

Crypto market remains in extreme fear, BTC down 24% year-to-date

The ongoing sell-off in Bitcoin ETFs comes as the Crypto Fear & Greed Index continues to signal persistent negative sentiment.

Even though Bitcoin has slightly recovered from multi-month lows near $60,000 logged in early February, the index has remained mostly in “Extreme Fear” territory.

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The Crypto Fear & Greed Index. Source: Alternative.me

At the time of writing, Bitcoin traded at $67,058 on Coinbase, down about 24% year-to-date. Analysts at major financial institutions, including Standard Chartered, have predicted that BTC could fall as low as $50,000 before potentially recovering to $100,000 later in 2026.

Related: Bitwise, GraniteShares join race for prediction market-style ETFs

According to the crypto analytics platform CryptoQuant, Bitcoin’s short-term Sharpe ratio has reached levels historically associated with “generational buying zones.”

“The arrows in the chart illustrate this clearly: each prior extreme negative reading was followed by violent recoveries to new highs,” CryptoQuant analyst Ignacio Moreno De Vicente said.

Magazine: Did a Hong Kong fund kill Bitcoin? Bithumb’s ‘phantom’ BTC: Asia Express

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