Roadmap

Auto-save, environment persistence, session states, and sess doctor shipped in v0.3. What's still open:

• Retention policy / automatic gc. Time-decaying snapshot retention (recent saves kept in full, older ones thinned automatically), plus caps configurable in config.toml. sess prune today only removes files that fail to parse — it doesn't do age- or size-based cleanup.
• Experimental process checkpointing (CRIU). A genuinely different mechanism from auto-save: instead of relaunching a saved command from scratch, actually freeze and later resume the real process, memory included. Investigated for viability — CRIU itself is mature technology (used for container live-migration and HPC job preemption) and handles pseudo-terminals well, but it requires root/sudo each time, and needs matching system library versions between save and restore, which makes it unreliable across anything longer than "pause for a bit before a reboot." If it ships, it would be strictly opt-in (--freeze) with automatic fallback to the normal relaunch behavior whenever it can't restore cleanly — never the default.