Noise limits are lifted and curfews are extended for concerts held on the steps of the Sydney Opera House, according to multiple Australian outlets. The reporting agrees that changes apply to event conditions for performances in that specific location rather than broadly across the venue. The curfew arrangements are extended, allowing concerts to run later than under previous rules, while the noise restrictions are relaxed for the same events. The articles do not indicate that the changes are indefinite, and they are presented as adjustments to the regulatory framework governing how concerts can operate at the Opera House. Overall, the outlets characterize the update as permitting concerts on the Opera House steps to continue with fewer constraints on sound levels and later finishing times. Details on the exact hours affected or any accompanying conditions are not provided in the supplied summaries, but the central points are consistent across all sources: increased flexibility on both noise limits and curfew times for these concerts.