• User-Declared Packs – Packs are defined in packs.declarations and enabled via packs.enabled, with refreshed presets (Rust/Go split, jj pack, simpler git, YAML support).
• Yazi Plugin System – Declaratively enable/disable plugins via [yazi] plugins = ["git", "starship"] in yazelix.toml. Bundled plugins (git, starship, lazygit) can be disabled or replaced with your own installed via ya pkg add.
• Yazi User Configs – Full merging support for yazi.toml, keymap.toml, and init.lua from configs/yazi/user/. User settings override defaults while preserving Yazelix's editor integration.
• Zellij & Yazi Themes – Theme/sorting controls, bundled Yazi flavor themes, and a documented cross-theme set shared by Zellij/Helix/Yazi.
• Terminal – Ordered terminal list that defines primary launch target and fallback order for auto-detection, manage_terminals to disable Yazelix-managed terminal packages for system-installed terminals, and automatic environment rebuilds before launch/restart on terminal config changes.
• Zellij – Pinned zjstatus with configurable widget tray (zellij.widget_tray) and per-item toggles.
• Launch & Config – Direct TOML config parsing, setup-only bootstrap option, modularized core commands, POSIX sh desktop launcher.
• Nixpkgs Unstable – Uses unstable for all packages.
• Updates & UX – Smarter update suite: yzx update devenv|lock|zjstatus|repo|all, cleaner lock refresh, sweep robustness, extensive bug fixes, and better warnings/compat fixes.

Full Changelog: v11...v12