Optimism has announced that it will cease support for op-geth and op-program on May 31st.

On April 4th, Michael Saylor tweeted: “Bitcoin has won. There’s global consensus that BTC is digital capital. Its four-year cycle has ended—price is now driven by capital flows. Banks and digital credit will shape Bitcoin’s growth trajectory. The biggest risk? A bad idea leading to a protocol change by fiat.”

April 4 — The niece and grandniece of the late Qasem Soleimani, commander of Iran’s Islamic Revolutionary Guard Corps (IRGC) Quds Force, were arrested by U.S. federal agents in the U.S. on Friday, the U.S. State Department announced. (Gold10)

On Saturday, April 4, Donald Trump said on Truth Social that the U.S. is "getting rid of the Iran nuclear issue" while emphasizing strong domestic economic data. He noted the latest figures show the U.S. added 178,000 new jobs, the trade deficit has dropped by 55% (dubbing the decline "the largest drop ever"), and credited tariffs for these outcomes.

On April 4, F2Pool co-founder Wang Chun said in an X post that Bitcoin protocol upgrades should not adopt a "riders bill" approach—similar to how U.S. politicians push through "must-pass but unpopular provisions." This is also a key reason he opposes BIP-110 and BIP-54. Responding to whether fixes using BIP-54 have issues, Wang further noted the "Timewarp" problem has existed for years and offers no significant benefit to miners, since they can’t predict who will mine the next block. Its only practical use is disrupting some altcoins, which provides almost no real value to Bitcoin miners—so there’s no urgent need to modify it. Additionally, libsecp256k1 and hardware upgrades have drastically improved block validation efficiency, making protocol-level changes unnecessary. "Fake confirmed transactions" fundamentally depend on breaking a double SHA256 collision; if that were possible, it would mean Bitcoin Core’s security has been compromised. Wang added these issues aren’t enough to d

April 4 — A source familiar with the matter told CNBC that the U.S. Senate Banking Committee will hold a hearing on April 16 to consider Kevin Warsh’s nomination as Federal Reserve chair. Separately, a criminal investigation into the Fed remains ongoing, probing whether current Chair Jerome Powell made false statements to Congress about the costly renovation of the central bank’s office building. Warsh’s nomination process is moving forward, potentially creating a conflict between the two parallel initiatives pushed by the Trump administration. Senate Banking Committee member Thom Tillis has stated he will not vote to confirm Warsh until the investigation is completed, indicating Trump cannot advance both processes simultaneously. However, by proceeding with the hearing, Trump appears to be attempting to do so. The Senate Banking Committee has not yet scheduled the hearing for a public session, per FXStreet.

April 4 — Iranian Foreign Minister Araghchi said Iran’s position on peace talks has been “misrepresented by U.S. media.” “We greatly appreciate Pakistan’s efforts and have never refused to travel to Islamabad. Our focus is whether this illegal war imposed on us can end completely and permanently.”