According to Vitalik Buterin, the Ethereum community is discussing allowing stage‑1 optimistic rollups to adopt shorter withdrawal windows of roughly 1–2 days while keeping more conservative parameters for stage‑2 systems. Source: Vitalik Buterin on Twitter, Nov 4, 2025; Ethereum Magicians forum discussion titled I think it is ok to allow stage 1 rollups shorter withdrawal windows 1-2 days, but we should be more conservative on stage 2. He emphasized this is a discussion rather than an implemented change, so traders should avoid assuming parameter updates on any specific rollup until official announcements are made by the respective teams. Source: Vitalik Buterin on Twitter, Nov 4, 2025; Ethereum Magicians forum discussion. The discussion focuses on the effects of reducing withdrawal times and related security trade‑offs, with direct implications for ETH withdrawal latency and liquidity planning for optimistic rollup exits. Source: Vitalik Buterin on Twitter, Nov 4, 2025; Ethereum Magicians forum discussion.