# Arbitrum’s Elara Upgrade Goes Live: 4x Bigger Stylus Contracts and Opt-In Compliance Screening

In Brief:Following a constitutional ArbitrumDAO vote, ArbOS 61 — codenamed "Elara" — switched on across Arbitrum One and Nova on Aug. 20 at 17:00 UTC.The compressed code ceiling for Stylus contracts jumps from 24 KB to 96 KB, while dedicated chains pick up opt-in compliance filtering at the protocol

| Fact | Value |
| --- | --- |
| Published | 21 August 2026 |

Source: https://egamers.io/arbitrums-elara-upgrade-goes-live-4x-bigger-stylus-contracts-and-opt-in-compliance-screening/