Release v0.8.3 - Critical Rendering Bug Fix - Fixed framebuffer display showing '4 faint postage stamp copies' artifact - NES palette indices (0-63) now correctly converted to RGB using NES_PALETTE lookup table - Changed 3 doctests from ignore to no_run for compile-time verification - 516 tests passing, 100% Blargg pass rate maintained - Critical rendering fix in update_framebuffer() function - Documentation improvements in rustynes-mappers crate - Version updates across all Cargo.toml files and documentation