Deep Agents changelog: what's new each month
Every stable Deep Agents release summarised by month: the highlights, new features, improvements, fixes and anything you need to act on. 3 months covered; the current month updates daily.
October 2026 · so far
4 releases: 0.0.9 → 0.1.81
October brought major platform integrations and workflow improvements to Deep Agents. The month saw new chat adapters, scheduling capabilities, and better control over model selection and execution.
- /summarization-model renamed to /offload model
Highlights
- Added Slack channel adapter with user mentions and paired sender support for secure access.
- Introduced per-chat model switching with the /model command.
- Added scheduled jobs with cron expressions and inline subagent execution.
- Marketplace plugin discovery now available for agents.
- New sandboxed execution option via environment variable for enhanced security.
New
- Slack channel adapter with outbound user mentions.
- Sender pairing for DM access and Slack with pairing code delivery.
- Per-chat model switching via /model command.
- Cron expressions and expiry times for scheduled jobs with inline subagent execution.
- Sandboxed execution mode via DEEPAGENTSTALONSANDBOX.
- Approved one-off askforhelp consultations.
- Batch approvals for concurrent tool calls.
- Marketplace plugin discovery for agents.
Improved
- Discord slash commands now registered as chat commands with public thread history sharing by guild channel.
- Cache expiring notifications emitted before prompt cache expires and shared with TUI.
- Transcript position maintained when opening pickers.
- Skill paths now use listed locations instead of inference.
- Skills load their tools only when read, improving performance.
- Effort selector and cost breakdown now accessible during active runs.
- Multiline chat input now highlights the active line.
- Added explicit tracing status indicator and --no-tracing option.
Fixed
- Stale encoding reset when overwriting text.
- Product and command names corrected in skill guides.
- Concurrent writes to local threads prevented.
- Hook execution now fails closed if context changes when a run resumes.
- Non-Anthropic Bedrock models now use ChatBedrockConverse.
September 2026
30 releases: 0.7.12 → 0.7.21
September brought major expansions to Deep Agents' capabilities, with significant additions to conversation management, model support, and reliability improvements across all components.
- Subagent mode renamed from handoff to isolated.
- Task tool calls now reject unknown argument keys instead of silently dropping unexpected input.
- FileInfo.size now correctly represents file size in bytes across backends.
Highlights
- Added Discord channel support with improved gateway failure reporting and new chat-scoped conversation history with configurable storage.
- Introduced subagent conversation forking and flexible subagent execution modes, including background expendable subagents and per-task tool selection.
- Added GPT-6 Astra support and pricing for Fireworks GLM-5.3 models, plus new MCP configuration tools and hot reload support.
- Expanded tool capabilities with native streaming PTC tool calls, improved file handling with better truncation explanations, and new /help and /btw commands.
- Improved workspace isolation, conversation reliability, and MCP safety with better OAuth credential handling and bounded resource operations.
New
- Subagent conversation forking in the SDK and renaming subagent mode from handoff to isolated.
- Discord channel support including gateway failure reporting and chat-scoped conversation history with hybrid search.
- MCP configuration tools, channel-based server authorization, hot reload for MCP configuration, and OAuth/device authentication for Slack and GitHub.
- Background expendable subagents, fresh subagents, per-task tool selection, and on-demand subagent execution.
- A /help command, /btw command for isolated side questions, and currenttime tool with timezone-aware wall-clock cron schedules.
- Inline thread mentions and picker via @@ syntax and targeted conversation deletion support.
- Cache bust timer in the footer and durable Debug Console cost breakdown with token and cost refresh while viewing.
- Support for managing tool approvals through tools.json and persistent LangGraph checkpoints.
Improved
- Renamed subagent mode from handoff to isolated for clarity.
- General-purpose subagents now default to fork mode and Auto classifier defaults by provider.
- Improved workspace isolation by resolving project policy per workspace, scoping project dotenv to workspaces, and isolating LangSmith auth.
- Better workspace configuration with bound conversation support, effective approval mode tracing, and request-time working directory binding.
- Enhanced MCP reliability with hardened OAuth device-flow, credential handling, and bounded configuration updates.
- Improved cost-warning behavior by showing session warnings in a modal and suppressing historical warnings when resuming.
- Made thread browsing and resume flows more resilient with recoverable failures and clearer message count headers.
- Better large tool result previews that clearly explain clipping or truncation, including byte-cap losses and per-line clipping.
Fixed
- Fixed glob sorting to tolerate missing modifiedat values and character counting in ls and glob output.
- Fixed request-time working directory binding and marketplace plugin installs to accept bare relative source paths.
- Fixed invalid partial tool-call patching and updated imputed ToolMessage content in PatchToolCallsMiddleware.
- Fixed local voice transcription and embedding retries, and ensured local model downloads persist.
- Fixed binary content in StateBackend.uploadfiles being tagged as base64.
- Fixed prompt clipboard word deletion behavior and local MCP cache warming to not block the event loop.
August 2026
30 releases: 0.7.2 → 0.7.11
August brought significant stability improvements and new user-facing features across Deep Agents. The month focused on better context management, expanded model support, and improved session handling.
- deepagents-code now requires Python 3.12 or newer.
- deepagents-cli is deprecated in favor of managed-deepagents.
- deepagents-talon now requires Python 3.12 or greater.
- Replaced Gemini 3.6 Flash with Gemini 3.7 Flash in the model switcher.
Highlights
- Added /context-doctor command for inspecting and troubleshooting context consumption issues.
- Introduced Python extension support with discovery, configuration, and runtime hosting capabilities.
- Expanded model support with new options including Meta Muse Spark, DeepSeek V4 variants, and Baseten GLM models.
- Improved session persistence with support for resuming and reconfiguring ACP sessions.
- Enhanced diff readability with word-level highlights and added shell command highlighting in chat input.
New
- Added /context usage report for inspecting context consumption and cache status row for at-a-glance session state.
- Added /context-doctor command for diagnosing and troubleshooting context issues.
- Added /summarization-model command and model picker for configuring the summarization model separately.
- Added tri-state DEEPAGENTSCODEONBOARDING environment variable for code onboarding control.
- Added support for managing config from remote sources and DEEPAGENTSHOME environment variable.
- Added warnings before expensive cold-cache turns and trust user-declared endpoints for cold-cache policies.
- Added resizable chat input by dragging its top border.
- Added trace metadata attribution for skill invocations and editable trace metadata support.
Improved
- Hooks v2 is now generally available with support for loading hooks from installed plugins and multiple lifecycle fixes.
- Auto approval classifier now supports selecting the classifier model and setting a review timeout.
- HITL rejection reasons are now framed for the model with easier reject-with-feedback discovery.
- Price catalog now refreshes hourly in the background with Baseten built-in overrides and local fallback support.
- Improved diff readability with quieter hunks and word-level highlights.
- Made /offload server-owned and interruptible with better progress reporting.
- Improved streaming performance for tool-call arguments to run in linear time.
- Enhanced chat and footer UI behavior with better visibility during rapid typing and improved MCP footer wrapping.
Fixed
- Fixed exact-file delete target resolution in the SDK using first-match-wins behavior.
- Fixed leaked turn coroutines and SQLite handles in session management.
- Fixed Hooks v2 lifecycle issues including session-end teardown bounding and malformed hook resume handling.
- Fixed recognition of in-flight trace messages and forced-compaction forks by preserving session IDs.
- Fixed Auto approval gate path expansion handling and tool argument validation errors are now recoverable.
- Fixed refreshed local context handling after compaction to reduce cache busts.
Summaries are written automatically from the official release notes (full changelog ↗); check the original notes before relying on a detail. Deep Agents: pricing, features and alternatives · All changelogs
