v0.8.1 - M9 Known Issues Resolution 85% Complete This release advances M9 Known Issues Resolution to 85% complete with core implementation work for audio quality, PPU edge cases, and performance optimization. - Audio Improvements (S1): Two-stage decimation via rubato, A/V sync - PPU Edge Cases (S2): Sprite overflow, palette RAM, mid-scanline writes - Performance Optimization (S3): #[inline] hints on CPU/PPU hot paths - Zero Regressions: 508+ tests passing, 100% Blargg pass rate | Sprint | Status | |--------|--------| | S1: Audio | COMPLETE | | S2: PPU | COMPLETE | | S3: Performance | CORE COMPLETE | | S4: Bug Fixes | PENDING | - 508+ tests passing (0 failures, 0 ignored) - 100% Blargg pass rate (90/90 tests) - Zero accuracy regressions - S4: GitHub issue triage and resolution - v0.9.0: Full M9 completion - M10: Final polish and v1.0.0-alpha.1 preparation