Arc 1.7.1

• Resume an interrupted managed-agent session from Work. Arc restores its transcript, prior turns, and workspace change history, and clearly marks any in-flight turn as interrupted.
• Long-running sessions preserve more context through compaction checkpoints and write durable summaries only after turns and jobs are truly finished, so resumed work starts with an honest record.
• Commands that run longer than 15 seconds can continue in the background with live, pageable output. On Windows, Stop and session shutdown clean up the entire owned process tree.
• Safe Workspace agents can make exact text replacements with conflict checks, reviewed-byte approval binding, durable change receipts, file history, and Undo.

• Completion now waits for observable room tasks, recorded plans, and structured Done-when requirements instead of accepting a premature finish.
• Repeated no-progress work now stops with a clear outcome, while user waits, approvals, verification pauses, backoff, and infrastructure problems remain distinct.
• Packaged builds now carry a verified TLS certificate store for hosted providers and licensing, avoiding failures caused by missing system certificate paths while keeping certificate verification enabled.
• Concurrent managed sessions now update file history more reliably on Windows, preventing a same-process lock race during overlapping workspace changes.

Windows 10/11 (64-bit), or macOS 11+ on Apple Silicon.