Three feature gated upgrades began activating on Solana mainnet the week of August 17. A 90% reduction in on chain storage rent, a 3.3 fold increase in maximum transaction size, and a staged slot time reduction from 400ms toward 200ms represent Solana’s most significant infrastructure change since Firedancer reached mainnet.

Solana’s infrastructure roadmap in 2026 is a sequence of bets stacked on top of each other. Firedancer reached mainnet in December 2025 and now carries approximately 14% of mainnet stake across more than 20% of active validators. Agave 4.2 changes the economics and performance characteristics of the network those validators run. Alpenglow, shipping in the next release, replaces the consensus mechanism entirely. Each layer depends on the one before it, and each one changes what developers can build on Solana.

This piece breaks down the three Agave 4.2 upgrades, measures what each one changes in practice, and examines how they position Solana against Ethereum’s Hegota roadmap and the broader competition for developer and user attention.

The rent reduction: what $0.016 accounts mean for builders

Rent on Solana is the minimum balance a user must deposit to keep an account open. The deposit scales with the amount of data stored. Under the previous rate, a standard SPL token account required roughly $0.16 in SOL as a rent exempt deposit. That amount is not a fee. It is locked in the account for as long as the account exists and returned when the account is closed.

SIMD-0437 cuts the lamports per byte constant by a factor of 10, from 6,960 to 696. The rent exempt deposit for the same token account drops to approximately $0.016. For a single account, the difference is trivial. For applications that create thousands or millions of accounts, the difference is structural.

A decentralized exchange that maintains an order book on chain creates accounts for every open order. A gaming protocol that tracks player state creates accounts for every active player. A tokenization platform that issues fractional shares creates accounts for every holder. In each case, the cost of bootstrapping the application scales linearly with the number of accounts, and SIMD-0437 reduces that cost by 90%.

The practical effect is that categories of applications that were uneconomical on Solana at the previous rent rate become viable at the new one. On chain order books with granular price levels, fully on chain games with persistent state for millions of players, and tokenization platforms with tens of thousands of holders all become significantly cheaper to operate.

The counterargument is that cheaper storage increases state bloat. Every account that exists on Solana occupies space that validators must store and process. Reducing the cost of creating accounts by 90% could produce a corresponding increase in the number of accounts, straining validator hardware requirements. Anza, the development team behind Agave, has argued that state compression and account lifecycle management features in future releases will address bloat independently of the rent rate.

Hardware wallet maker BitBox has released a firmware update that fixes two vulnerabilities it described as “severe” that could have enabled the installation of malicious firmware or put user funds at risk. 

In a security disclosure on Monday, BitBox said one involved memory corruption affecting Multi editions of BitBox02 and BitBox02 Nova that had not been configured with a wallet. A malicious host could exploit it to execute arbitrary code and potentially install malicious firmware, which could lead to lost funds. 

The second affected BitBox’s Silent Payments implementation and could have allowed a malicious host to lock Bitcoin to an unintended address. Direct theft was not possible, but an attacker could potentially demand a ransom to cooperate in recovering the coins, according to BitBox. The company said it had received no reports of either vulnerability being exploited or causing users to lose funds. 

The disclosure comes at a sensitive moment for self-custody, after a Coldcard firmware flaw was linked to more than $112 million in Bitcoin thefts, underscoring how weaknesses in devices designed to protect private keys can become points of failure.

Cointelegraph reached out to BitBox for more information but did not receive a response before publication. 

BitBox patch follows Coldcard thefts, wallet data leaks

The BitBox security update follows a wave of hardware-wallet incidents involving devices and the services surrounding them. 

The most damaging was the Coldcard flaw, which traced to a March 2021 firmware change that went undetected for more than five years. The vulnerability affected wallet-seed randomness, allowing attackers to brute-force impacted wallet seeds and derive their private keys without physical access. 

Galaxy Research said Friday that Coldcard-related losses had exceeded $112 million, with about 1,778.6 BTC swept from more than 8,600 addresses.

Related: Coldcard exploit pushes July losses to $247M as second-worst month of 2026

More recently, separate data breaches involving Trezor and SafePal exposed customer and order information belonging to more than 53,000 customers. Trezor attributed the exposure of 13,689 customers’ data to shipping provider ShipMonk, while SafePal said an authorization flaw in an order-tracking plug-in exposed details belonging to 39,798 customers.

Neither incident compromised devices, private keys or recovery phrases, but both companies warned that the information could enable targeted phishing and impersonation attacks. 

Magazine: Do the Coldcard attacks mean all hardware wallets are now insecure?

Bitcoin traded near $64,100 on Tuesday, up 1% on the day and holding above $64,000 even as rising bond yields and climbing oil drained appetite for risk assets, per CoinDesk data.

Ether held near $1,893 and the rest of the majors sat flat, with Hyperliquid the week’s outlier, up 8.3%.

The pressure is coming from bonds and crude. The 30-year Treasury yield rose to 5.33%, its highest since 2007, as investors demand more to finance heavily indebted governments and guard against sticky inflation. Long-dated yields climbed worldwide, and S&P 500 futures fell 0.5%, heading for a third straight day of losses.

Brent crude topped $91 a barrel as the US-Iran conflict escalated, with Trump threatening to bomb Oman if it interferes with US operations in the region.

That combination is the macro headwind that has capped crypto all summer, now sharpening. Higher oil feeds inflation, higher inflation lifts yields, and rising borrowing costs pull money out of risk assets and reinforce expectations that central banks stay tight. Bitcoin sits in the same risk complex, so the read-through is negative at the margin.

What stands out is that bitcoin is holding anyway. It’s up on the day and green on the week while stocks fall for a third session and yields hit generational highs, the kind of relative firmness that fits the returning-ETF-demand thread rather than fighting it. Watch whether it can keep diverging.

A break above $64,500 would strengthen the case that fresh buyers are absorbing the macro pressure, while oil pushing toward $100 and yields climbing further would test that resilience fast.

The U.S. Justice Department has spent nearly a year investigating Andreessen Horowitz over whether partners at the venture capital firm are improperly serving on the boards of competing artificial intelligence companies.

Bloomberg News reported on Aug. 17, citing people familiar with the matter, that the inquiry involves Databricks and Fivetran, two data and AI companies backed by Andreessen Horowitz, with regulators examining the firm’s representation on both boards.

Andreessen Horowitz co-founder Ben Horowitz sits on Databricks’ board, while partner Martin Casado serves as a director at Fivetran. Both companies provide technology used by businesses to collect, organise and analyse large amounts of data, according to the report.

Casado had also served on the board of dbt Labs before Fivetran acquired the company in June. People familiar with the matter told Bloomberg that the Justice Department reviewed the transaction for months after it was announced in October, but ultimately cleared the deal without conditions.

The separate board investigation began around the same period as the merger review and has continued after the acquisition closed, the people said. The Justice Department has not made a final decision on whether to take action, leaving open the possibility that the inquiry could end without enforcement.

Andreessen Horowitz probe focuses on competing board seats

At issue is a provision of the Clayton Act, the 1914 antitrust law that restricts certain cases in which directors or officers simultaneously serve at competing companies. Such arrangements are commonly referred to as interlocking directorates.

During previous enforcement actions, the Justice Department has often resolved concerns by having a director leave one of the competing boards. Under former Assistant Attorney General Jonathan Kanter, the department revived enforcement of the provision and pushed directors at multiple companies to give up board seats.

Ari Emanuel, then chief executive of Endeavor Group Holdings, stepped down from Live Nation Entertainment’s board in 2021. Directors connected to more than 10 other companies also left boards during enforcement actions in 2022 and 2023, according to Bloomberg.

The Andreessen Horowitz investigation involves another question because regulators are examining the venture firm’s representation through more than one partner. Bloomberg reported that the law is written to apply to companies as well as individuals, and several courts have accepted that interpretation.

Andreessen Horowitz could still challenge that reading if the government eventually brings allegations, according to the report. No such decision has been made.

Spokespeople for Databricks and the Justice Department declined to comment to Bloomberg. Andreessen Horowitz and Fivetran did not respond to requests for comment.

Databricks has become one of a16z’s biggest AI holdings

Databricks is one of the most valuable private technology companies in Andreessen Horowitz’s portfolio and remains a potential candidate for an initial public offering.

The company last week announced $5 billion in new funding at a $190 billion valuation. Andreessen Horowitz has backed Databricks since its early years, with Horowitz leading a $14 million investment in the company in 2013, according to Bloomberg.

Years of follow-on investments have left Horowitz sitting on billions of dollars in potential returns tied to Databricks, the report said.

Databricks develops software that companies use to organise, process and analyse business data, including tools used to build AI applications. Fivetran also operates in the enterprise data sector, providing technology that moves and centralises information from databases, applications and other sources.

Andreessen Horowitz’s exposure to AI extends well past the companies involved in the DOJ inquiry. Bloomberg reported that the firm had $90 billion in assets under management as of January and recently raised a $15 billion fund, its largest fundraising haul, to invest across the startup sector.

The firm has put billions of dollars into AI businesses, including coding company Cursor and voice AI developer ElevenLabs. It has also backed OpenAI and holds a major investment in SpaceX, according to the report.

Its investment activity remains significant in crypto as well. crypto.news reported in July that a16z completed 18 deals during the period tracked by CryptoRank, putting it behind Animoca Brands among the most active investors in the dataset.

A few months earlier, the firm’s crypto division launched a $2.2 billion vehicle focused on stablecoins, tokenised assets and blockchain infrastructure. The new crypto fund came as Crunchbase data cited at the time showed AI startups had raised $242 billion during the first quarter of 2026, or roughly 80% of the $300 billion raised globally.

Washington ties have put a16z closer to federal policy

The antitrust investigation has continued while Andreessen Horowitz has developed close connections with Washington during President Donald Trump’s second administration, Bloomberg reported.

Marc Andreessen and Ben Horowitz each donated millions of dollars in 2024 to a group aligned with Trump while he was running for president. Later that year, Horowitz also contributed $2.5 million to a super PAC supporting Democratic presidential candidate Kamala Harris.

Andreessen has since taken a role in a federal policy initiative focused on artificial intelligence. The Federal Reserve appointed him in July to co-lead an AI task force studying the technology’s effects on productivity and employment.

The panel also includes Stanford University economist Charles I. Jones and Microsoft executive Asha Sharma. Federal Reserve staff will support the group, while its research and feedback will feed into the central bank’s review of how technological changes can affect economic output and jobs.

Within the Trump administration, Andreessen Horowitz has also become an influential participant in AI policy discussions. Bloomberg reported that the firm successfully pressed the administration to remove several safety guardrails governing the use of artificial intelligence.

Political spending connected to the firm has extended into digital assets. A July review found that Andreessen Horowitz contributed $24 million to Fairshake during the second half of 2025, part of crypto industry spending that left the political action committee and its affiliates with about $193 million on hand in January.

People familiar with the DOJ investigation told Bloomberg that regulators have not reached a final decision on how to proceed, and the inquiry could still close without any action against Andreessen Horowitz.

The European Union has expanded its Russia crypto sanctions to 14 foreign service platforms while creating a country-level transaction ban that could cut EU operators off from crypto providers in jurisdictions accused of repeatedly enabling sanctions evasion.

According to the Council of the European Union, the measures were adopted on July 23 under the bloc’s 21st sanctions package against Russia, extending transaction bans to crypto platforms based in Georgia, Panama, the United Arab Emirates, the Marshall Islands, Kyrgyzstan and Belarus.

The package also added four designations connected to Russia’s cross-border A7 payments network, including entities linked to its operations in Africa. EU officials said the network forms part of the financial infrastructure used to maintain payment channels despite restrictions imposed on Russia since its invasion of Ukraine.

More significantly, the package gives the EU authority to block transactions with crypto service providers across an entire third country if the Council determines that the jurisdiction has systematically failed to stop platforms from providing services that help Russia bypass sanctions.

The mechanism turns a measure proposed in June into an available sanctions tool. At the time, the European Commission proposed restrictions against 20 non-EU entities and sought authority to prohibit crypto services from jurisdictions hosting platforms used by sanctioned Russian actors.

EU crypto sanctions can now target entire countries

Under Article 5bc of amended Regulation (EU) No 833/2014, EU operators can be prohibited from dealing directly or indirectly with crypto-asset service providers or platforms enabling crypto exchanges or transfers when they are established in a listed third country.

A country can be added only when the Council determines that it has systematically and persistently failed to prevent crypto services or exchange and transfer platforms from facilitating activity covered by EU restrictions.

No country has yet been added to that list, according to economic sanctions specialist Nick Turner, meaning the provision currently gives the EU the legal mechanism without immediately imposing a nationwide crypto transaction ban on any jurisdiction.

Turner described the measure as an important change in the EU’s approach to secondary sanctions, which can place pressure on entities outside the bloc because of their dealings with sanctioned parties.

“Under the new Article 5bc, a country’s regulators are on the hook for failing to stop EU-sanctioned activity,” Turner wrote in his July 24 analysis.

The sanctions expert said the rule could create legal conflicts where domestic laws allow activity that EU sanctions require local authorities to prevent. In his assessment, the tool may initially be used to increase diplomatic pressure on governments hosting crypto businesses connected to sanctioned Russian activity.

Turner said it was “hard to say” whether the EU would ultimately place a country on the list, particularly because a nationwide designation would affect providers beyond the individual platforms accused of facilitating restricted transactions.

The authority had already been flagged when crypto.news covered the proposal in June. European Commission President Ursula von der Leyen said at the time that allowing country-level restrictions would serve as a deterrent for jurisdictions hosting platforms that help Russia evade EU sanctions.

Fourteen crypto platforms face direct transaction bans

Before any country-wide restrictions are used, the latest package has already imposed transaction bans on 14 crypto-related service platforms operating outside the EU.

The Council identified Georgia, Panama, the UAE, the Marshall Islands, Kyrgyzstan and Belarus as the jurisdictions hosting the affected platforms. The sanctions prevent EU operators from conducting covered transactions with the listed entities.

July coverage of the package showed that the crypto restrictions formed part of a much larger financial sanctions action involving 218 individual listings, including 48 people and 170 entities. The Council also imposed asset freezes and restrictions on making funds available to 94 banks and major financial institutions.

Another 33 Russian credit and financial institutions were placed under transaction bans, while four non-Russian banks were also targeted. The Council said one of the foreign banks was linked to Russia’s System for Transfer of Financial Messages, or SPFS, while three others were accused of helping entities circumvent sanctions.

Crypto infrastructure received separate treatment through the 14 platform designations and the four additions connected with the A7 cross-border network.

The EU had already targeted the A7A5 ruble-backed stablecoin and entities behind it in its 19th sanctions package in October 2025. The asset has been associated with the A7 payments network, which Western authorities have scrutinized over its role in maintaining Russia-linked international payment channels.

The 21st package extends that pressure to new A7-linked entities, including connections with Africa, while allowing EU authorities to address platforms operating from countries where enforcement against sanctioned crypto activity is considered insufficient.

Russian and Belarusian control of EU crypto firms faces tighter rules

Separate provisions also expand restrictions on Russian and Belarusian involvement in crypto businesses operating inside the EU.

From Aug. 25, the prohibition covering ownership, control and management positions will apply across crypto-asset services described under the Markets in Crypto-Assets Regulation, extending the restrictions beyond wallet, account and custody providers.

The expanded scope covers MiCA-regulated services including crypto advice, portfolio management and transfers carried out on behalf of customers under the amended sanctions framework.

For Belarusian nationals and residents, separate July measures prohibit them from owning or controlling MiCA-regulated crypto-asset service providers or holding positions within their governing bodies from Aug. 25. The final package followed a June proposal and expanded the number of foreign crypto platforms facing transaction bans from 11 in the proposal to 14 when adopted.

The restrictions arrive shortly after MiCA’s final EU-wide transition period expired on July 1, leaving crypto companies without the required authorization unable to continue providing covered services under their previous national registrations.

An Aug. 11 analysis of MiCA firms citing TRM Labs found that only 281 of 1,343 identified crypto service providers operating across the European Economic Area had secured authorization by the deadline, leaving 1,062 without approval.

TRM also found a difference in sanctions exposure between the groups. Unauthorized providers sent about $5 billion directly to sanctioned counterparties, roughly three times the $1.7 billion attributed to authorized firms, while 12% of unauthorized providers carried High or Severe risk ratings compared with 2% of authorized businesses.

Within that unauthorized group, exchanges accounted for 42% of providers, compared with 29% among authorized firms. TRM said every provider carrying its Severe risk classification was in the unauthorized group, while a small number of those firms sent between 1% and 12% of their transaction volume directly to illicit addresses.

The EU’s Anti-Money Laundering Authority has asked supervisors to closely oversee customer exits and asset transfers as unauthorized providers leave the market, while coordinating with regulators in other jurisdictions when customers and funds move across borders.