# #971 - Hsiao-Wei Wang Steps Down, Base Beryl Upgrade, Aztec Exploit *Hsiao-Wei Wang steps down as Ethereum Foundation co-executive director, Base deploys its Beryl upgrade to testnet, and Aztec Labs investigates a second exploit on a deprecated rollup.* By [ETH Daily](https://ethdaily.io) · 2026-06-19 news, june2026, 2026 --- Quick Take ---------- * Hsiao-Wei Wang departs EF. * Base ships Beryl on testnet. * Aztec hit by exploit on v1. [https://open.spotify.com/episode/4Xh8ohXyZNQikZxO7RZCS1](https://open.spotify.com/episode/4Xh8ohXyZNQikZxO7RZCS1) * * * Advertise --------- [![](https://storage.googleapis.com/papyrus_images/451cc866a3d850b22fc8dd1db907f94a08090ffffe29963d21a2257b4abacfe7.png)](https://ethdaily.io/ads) The trusted Ethereum news briefing since 2022, reaching 6,000+ audio subscribers, 4,000+ newsletter subscribers, and 26k+ combined social followers. Want to reach the ETH Daily audience? Learn more at [ethdaily.io/ads](https://ethdaily.io/ads). * * * Hsiao-Wei Wang Steps Down As EF Co-Executive Director ----------------------------------------------------- Hsiao-Wei Wang [announced](https://ethdaily.io/hsiao-wei-wang-steps-down-as-ef-co-executive-director) she is stepping down as co-executive director and board member of the Ethereum Foundation, effective today, becoming the latest high-profile departure from the organization. Wang took on the role last year alongside Tomasz Stańczak, leading the foundation through one of its most challenging periods, and said the decision followed a sabbatical that gave her space to reflect on her priorities. Her board exit leaves Vitalik Buterin, Aya Miyaguchi, and Patrick Storchenegger as the remaining members. Buterin praised Wang as a steadfast contributor for a decade, crediting her early consensus research and the Ethereum community she built in Taipei. The exit extends a six-month wave of EF turnover that included [new Protocol cluster leadership](https://ethdaily.io/ef-protocol-gets-new-leadership-as-tim-beiko-and-monnot-depart) after Tim Beiko, Barnabé Monnot, and Alex Stokes moved on, plus the departures of [Carl Beek](https://ethdaily.io/carl-beek-departs-ethereum-foundation) and [Josh Stark](https://ethdaily.io/josh-stark-departs-ethereum-foundation). Base Beryl Upgrade Goes Live On Testnet --------------------------------------- Base [deployed](https://ethdaily.io/base-beryl-upgrade-goes-live-on-testnet) its second network upgrade, Beryl, to the Base Sepolia testnet, with mainnet activation scheduled for June 25, 2026. Beryl introduces the B20 native token standard, a template whose logic runs as a precompiled Rust contract executed directly in the node software rather than as onchain EVM bytecode, implementing the full ERC-20 specification plus ERC-2612 permits for drop-in compatibility. It ships with an Issuer Toolkit covering role-based access control, mint and burn with optional supply caps, granular transfer policies, and freeze-and-seize support, with Asset and Stablecoin variants available at launch. The upgrade also cuts the common single-proof withdrawal path from 7 days to 5 days, building on the Multiproofs introduced in [Azul](https://ethdaily.io/base-azul-goes-live-on-mainnet) four weeks ago, and ships Reth V2 to reduce node disk usage and raise block gas targets. Base's next upgrade, Cobalt, is targeted for September with native account abstraction. Aztec Hit By Second Deprecated Rollup Exploit --------------------------------------------- Aztec Labs is [investigating](https://ethdaily.io/aztec-hit-by-second-deprecated-rollup-exploit) a second exploit targeting a deprecated payments product, with roughly $2 million drained from an immutable smart contract on June 17, 2026. The funds moved in a single transaction from an immutable stage 2 rollup that was sunset in 2022, a system over which Aztec Labs holds no admin keys and cannot pause or upgrade. The incident follows a separate $2.19 million exploit of the deprecated Aztec Connect rollup on June 14, in which an attacker funded a fresh wallet through Tornado Cash and submitted 14 crafted rollups to drain funds, with a second wave extracting roughly $88,000 of residual value the next day. That attack exploited a flaw in the Solidity contracts where rollup proof side effects were not asserted against the deposit and withdrawal system, while the proof system and trusted setup were not compromised. Aztec Labs says neither incident affects any active products, and that the live Aztec Network is entirely separate and unaffected. Other News ---------- * [ACDE #239](https://christinedkim.substack.com/p/acde-239) summary * Erigon [v3.4.4 release](https://github.com/erigontech/erigon/releases/tag/v3.4.4) * Trent: [Succession After Subtraction](https://x.com/trent_vanepps/status/2067593124398989551) * FDIC stablecoin [issuer rulemaking](https://www.fdic.gov/news/financial-institution-letters/2026/notice-proposed-rulemaking-permitted-payment-stablecoin) * Royco [integrates](https://x.com/lifiprotocol/status/2067578379532997051) LI.FI Intents * Term Labs [introduces](https://x.com/term_labs/status/2067679634259407056) Terminal 1 * Shutter Network [MEV simulator tool](https://x.com/ShutterNetwork/status/2067580345709646195) * Synthetix [supports](https://x.com/synthetix/status/2067190980370207132) ETH margin * Synthetix [sunsets](http://x.com/synthetix/status/2065431514335379680) sUSD * Illinois [punitive](https://x.com/crypto_council/status/2066993835977453873) crypto asset tax * * * Disclaimer: Content is for informational and educational purposes only and does not constitute financial, investment, legal, or other professional advice. No representations or warranties are made as to accuracy, completeness, or timeliness. Use of this content is at your own risk, and you should consult a qualified professional before making decisions. No fiduciary or advisory relationship is created --- *Originally published on [ETH Daily](https://ethdaily.io/971)*