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DeepSeek Harness Release Adds Native Image Support, Modular Subagents and Changes SQLite Format

Expanding image-driven workflows, the update moves heavy subagents to on-demand bundles, creating an incompatible SQLite on-disk format that requires migration.

Overview

  • The release is live and enables model adapters to make native image requests so images can be sent with commands that were previously text-only.
  • Image attachments now persist across calls in MCP and ACP, nested images can be forwarded in PTC Mode, and two image bugs were fixed that caused failures from oversized files and accumulated historical image payloads.
  • Claude Code and Codex have been removed from the base distribution and published as on-demand Profile Bundles; Codex now supports a non-interactive permission mode, multiple named instances, and faster parent-task wake-up via reportDelivery to enable unattended workflows.
  • Operational updates include concurrent web_search queries and persistent PowerShell sessions in the Windows PTY default minimal profile, and overall SQLite read/write and fork performance and storage were improved.
  • Because the SQLite on-disk data structure is not backward compatible, administrators should review the release notes, plan data migration or downtime, and expect smaller base installs but extra dependency and bundle management for subagents while following the new brand usage rules.