n8n 2.40.0

2.40.0 (2026-09-15)

Bug Fixes

• AI Agent Node: Preserve Anthropic thinking blocks with empty text across tool calls (#38302) (7ac975c)
• ai-builder: Enhance guidance UX for agents with no sessions on builder session tab (#38243) (1ed3a24)
• ai-builder: Guard against 429 errors on channel integrations (#38106) (93ca2d1)
• ai-builder: Show reusable credentials in the Instance AI agent credential card (#38276) (999b541)
• Allow one icon file for the light and dark icon slots (#37711) (9095e9a)
• API: Let global members grant folder scopes to API keys (#37654) (aa91e71)
• API: Return null variable values as empty string & fix newly imported source control variable values (#38488) (b9a7f03)
• Azure OpenAI Chat Model Node: Resolve the proxy against the Azure endpoint so NO_PROXY applies (#38026) (7383fd7)
• Bump task-runner-launcher to 1.5.0 (#38309) (9135888)
• Center the registration badge in the Usage and Plan heading (#38275) (cf6cb77)
• Close the variable modal on a backdrop click (#38286) (45a7f74)
• Confluence Node: Match hyphenated and multi-word titles in the page picker search (#38175) (fdb31d2)
• Confluence Node: Return the page sub-tree in tree order and skip drafts (#38403) (b0f47eb)
• core: Accept null headers from mcp registry api (#38614) (02ee221)
• core: Accept numeric pagination tokens from resource locator list methods (#38147) (7ab1582)
• core: Add model boundaries to external tool results (#37316) (d328bbf)
• core: Allow a fallback model alongside the primary on AI nodes (#38007) (2550501)
• core: Apply the SSO expression mapping env var in the provisioning loader (#37170) (b4fee56)
• core: Ask which MCP connector to set up before the AI Assistant gives a URL (#37992) (899d52d)
• core: Batch LangSmith agent session exports (#38030) (79d936f)
• core: Bound the wait for the workflow publication lock (#38019) (5212777)
• core: Check Gateway credits eligibility against the correct sub-node (#38193) (9823c2e)
• core: Consolidate secret redaction in @n8n/utils and redact more credential shapes (#38054) (c5653f6)
• core: Correct the expression prefix warnings on fields that cannot hold an expression (#37791) (c7c179b)
• core: Count executions that crash recovery marks as crashed (#37733) (3521e54)
• core: Do not persist an execution when preExecute throws (#37701) (53ecf6b)
• core: Enforce execution timeout for stuck jobs in queue mode (#36258) (92f702d)
• core: Execute MCP toolkit members on workers (#38069) (c0f6471)
• core: Forward the receiver in the lazy-proxy set trap (#37321) (b3306b2)
• core: Ground provider OAuth scope guidance in n8n docs (#38066) (2afb5b6)
• core: Keep a resumed execution in the trace of the parked execution (#38033) (5414403)
• core: Keep node settings, positions and error routes through an assistant workflow edit (#38254) (c95756d)
• core: Keep nodes clear of the agent card in SDK-generated workflow layouts (#38093) (4b4d670)
• core: Memoize pairedItem ancestry traversal (#38085) (f3db19d)
• core: Merge system messages for strict providers (#37908) (19651de)
• core: Prefer native nodes over Code nodes in n8n Assistant workflow builds (#38598) (4e1fcf6)
• core: Preserve link URLs in inbound agent chat messages (#38294) (2beccad)
• core: Prevent false agent model stream stalls and show run errors in chat history (#37558) (26afe95)
• core: Re-register the n8n Trigger on every publish through the publication service (#38153) (cbda01a)
• core: Read the Instance AI folder-exploration flag as a variant, not a boolean (#38479) (4579e78)
• core: Recognize always-loaded tools in agent tool discovery (#38204) (4a6e625)
• core: Reconnect the Email Trigger (IMAP) on every publish through the publication service (#38190) (db60f99)
• core: Reconnect the Postgres Trigger on every publish through the publication service (#38211) (0c3c9d7)
• core: Redact execution data on partial private-credential runs (#38364) (840aef6)
• core: Redact opaque field values in confirmed secret containers (#38067) (3bd0e69)
• core: Register redaction context hook on all instance types (#37298) (56383fc)
• core: Repair legacy-format data-encryption keys during bootstrap (#38100) (4b36c51)
• core: Require verification coverage for every workflow trigger (#37961) (429116f)
• core: Retry Instance AI model turns when the provider stream closes without output (#38080) (b6b5ecd)
• core: Return Instance AI node output grouped per output branch (#38414) (e44fbd3)
• core: Return luxon values from expressions as instances (#38034) (0c6c9e3)
• core: Reuse an existing consent grant after the visitor authenticates mid-flow (#38084) (3b6faa2)
• core: Route "trigger my workflow" to the existing workflow, not the builder (#38073) (219402c)
• core: Run tool nodes of an AI Agent upstream of the destination node (#38348) (40b6d84)
• core: Scope data table Overview access by project role, not a global gate (#37676) (a47f19b)
• core: Scope end-user credential checks to reachable nodes (#36970) (37e50b5)
• core: Select sandbox npm install flags by provider (#38358) (ab101d5)
• core: Send a JSON Accept header in the Brave Search credential test (#38594) (2f55165)
• core: Settle answered confirmation cards in the AI Assistant run-sync frame (#38328) (4890d04)
• core: Stop MCP workflow updates from dropping unknown operation fields (#38148) (a1f8405)
• core: Stop the workflow SDK collapsing inline branch chains to their branching node (#37717) (37efe11)
• core: Treat empty strings as empty in Data Table filters (#32887) (0c82743)
• core: Treat Instance AI model stream stalls as dropped provider connections (#38079) (b7a58c2)
• core: Trust the CA from GIT_SSL_CAINFO for source control HTTPS remotes (#38258) (e803d4b)
• core: Unpublish workflows before a source control pull deletes them (#37967) (ecc4ba3)
• editor: Align Instance AI input controls (#37162) (a234034)
• editor: Allow creating web search credentials from the agent builder settings (#38574) (5213246)
• editor: Allow switching a toggle parameter from expression to fixed (#32762) (a053578)
• editor: Center modal dialogs vertically in the viewport (#38081) (f3196f1)
• editor: Clear tag loading state after failed requests (#37901) (b4fbcc5)
• editor: Fixes issue that prevented some users from revoking their end-user credentials (#38311) (fc8a021)
• editor: Hide Custom API Call option in node tool configuration (#38365) (79f0e04)
• editor: Hide the AI Assistant settings page when it has nothing to show (#38063) (4f05c24)
• editor: Keep CSV imports tied to the selected file (#37906) (6a1ad26)
• editor: Keep header permissions after template insert (#38387) (d2af313)
• editor: Keep the artifact tab the user picks during an AI Assistant run (#38178) (80da0c8)
• editor: Keep the typed AI Assistant prompt when no project is selected (#37813) (b835bef)
• editor: Match workflow save and publish keyboard shortcuts in agent builder (#38572) (1175b1c)
• editor: Merge native agent tools into n8n nodes (#38057) (8ace538)
• editor: Open AIA built agent previews in the chat panel and remove fullscreen mode (#37994) (4d5d611)
• editor: Prevent group frames from overlapping during auto-layout (#37509) (d1e6d6f)
• editor: Prevent stale agent autosaves (#38087) (e6dea03)
• editor: Read the MCP nudge flag as a multivariate experiment (#38586) (36f82a3)
• editor: Refresh evaluations side panel when a run finishes (#38075) (852c765)
• editor: Remove legacy AI Workflow Builder references from AI usage settings (#38056) (229405b)
• editor: Rename the first agent builder tab to Build (#38184) (06fc433)
• editor: Reserve space for list and table scrollbars (#38603) (f81cbcd)
• editor: Restore legacy sticky note markdown spacing (#38333) (064e909)
• editor: Restore tag text hidden by zero line-height (#38107) (7e152a4)
• editor: Show friendly labels for the activity and conversation-history tools in the n8n Assistant chat (#38447) (fe5de38)
• editor: Show loading skeletons in the AI Assistant artifacts sidebar (#38180) (b3e1b7f)
• editor: Show renamed credentials in the AI Assistant setup picker (#38295) (39dfe59)
• editor: Stop rendering task and sub-agent labels with no text (#38059) (8cb5159)
• editor: Stop the Publish modal from hanging after a workflow is published (#38151) (d0f94da)
• editor: Strip Evaluation Trigger metadata fields from test case inputs (#37572) (c410581)
• editor: Truncate long AIA context chips (#37878) (af2bd80)
• editor: Use the push scope for the source control owner filter (#38682) (8671d83)
• Email Trigger (IMAP) Node: Restore the connection after the server drops it (#36801) (1776a51)
• Enforce protected instance execution restrictions (#37947) (793136b)
• Guard the getWebhookInfo response shape (#38680) (d057d86)
• Guardrails Node: Align threshold hint with behavior (#29018) (0396ef8)
• Hide the deprecated node and show a deprecation notice (#38571) (c220447)
• Hint the Microsoft OAuth2 scope format and link the Service Principal credential docs (#38451) (404ab49)
• Keep GitHub Actions expressions intact in scaffolded workflow files (#37973) (8c8bd23)
• Microsoft Excel Node: Accept personal OneDrive workbook IDs in the By ID field (#38471) (d04d3a4)
• Microsoft Excel Node: Show only workbook files in the Workbook picker (#38244) (763e0cf)
• Microsoft Outlook Trigger Node: Fetch the latest message when executing manually (#34486) (ef16421)
• Microsoft SharePoint Node: Keep the resource dropdowns working when the API omits a label (#38411) (d6fe24d)
• Postgres Node: Stop reporting parameter-loading errors to Sentry (#28865) (663bb3e)
• Refresh the Confluence/Jira OAuth2 token automatically when it has expired (#37776) (3d293b5)
• Resolve node source path before the translation lookup (#38281) (092e53b)
• Scope deployment key lookups by type (#38410) (11cc120)
• Scope workflow sharing candidates to personal projects (#38222) (dcb1d17)
• Serve binary data stored in the temp execution dir (#38270) (7bac547)
• Show credentials shared with all users and projects in the (#38287) (30d44a5)
• Show custom role scope tooltips next to the hovered scope (#38284) (78ea57d)
• Stop requiring Organization.Read.All for the Microsoft Entra Service Principal credential test (#38568) (59715e8)

Features

• Add Microsoft Dataverse core node (#34286) (da910f5)
• AI Agent Node: Add option to force a tool call on the first iteration (#38342) (bea96e5)
• ai-builder: Add ability to duplicate agents (#38214) (8800c77)
• ai-builder: Better validation errors tooltips for agent preview and publish (#38246) (eb4eeba)
• ai-builder: Wrap vecto store settings in advanced section (#38437) (5c42568)
• API: Add billable to Insights table (#36856) (cb12be7)
• API: Let @Body require a body independently of DTO field optionality (#38237) (cbfc257)
• Azure Storage Node: Add Azure cloud selection and custom endpoints to the Shared Key credential (#38181) (59c7d15)
• Confluence Node: Unhide the node and enable AI tool usage (#38416) (6424ca6)
• core: Add a v3 migration report rule for preExecute execution creation (#38681) (89fe108)
• core: Add agent-directed episodic memory capture (#38134) (5de6a40)
• core: Add ai_preference table for AI preferences (#38131) (cf8df4f)
• core: Add log streaming events for instance reports (#38442) (3fc7803)
• core: Add observability for the decryption path (#38236) (82229f3)
• core: Add promotion schema entities and DTOs (#37939) (e77b7bb)
• core: Add selective promote for Git-based promotions (#38105) (7ec481c)
• core: Add structured output parser validator to workflow SDK (#37983) (d4f7672)
• core: Add v3 breaking change rule for the storage directory rename (#38423) (1cc5708)
• core: Add workflow selection to project package export (#37611) (c3f1981)
• core: Append the MCP registry attribution to standalone agent replies (#38584) (7db4dcf)
• core: Enable the workflow publication service by default (#37835) (0a6709f)
• core: Improve Agent Builder evaluation and intent routing (#38329) (684b930)
• core: Move promotions services and API to the new model (#37965) (179dbb3)
• core: Notify parent agents when background jobs settle (#37617) (99e9730)
• core: Push to a timestamped branch on promote for promotions (#37573) (98f4feb)
• core: Share integration threads across participants (#38461) (072f496)
• core: Stop Instance AI reporting a simulated run as fully verified (#38060) (efb5547)
• core: Store parent identity on background jobs (#37752) (588543c)
• core: Support ephemeral sandboxes for the n8n sandbox service (#38185) (41a5575)
• core: Tell Instance AI when a verified draft is not the live workflow (#38289) (7b10a16)
• core: Warn in the migration report that chat hub goes away (#38613) (3392e3d)
• core: Warn on deprecated N8N_DB_PING_TIMEOUT env var (#38555) (f031805)
• Databricks Node: Append a per-row MCP registry attribution to the agent reply (#38306) (13b8f22)
• Databricks Node: Refresh user-login tokens in the chat model during long executions (#37854) (0b8fd1e)
• Databricks Node: Send partner User-Agent on Genie MCP traffic (#38068) (4baf766)
• editor: Add manual agent creation entry point on the agents pages (#37702) (68d5deb)
• editor: Add MCP nudge modal on JSON export/import and copy/paste (#38144) (8a463da)
• editor: Add N8nChatActions to @n8n/design-system (#36588) (9ca3664)
• editor: Add paginated AI Assistant chat history (#38467) (c979296)
• editor: Add preview chat utilities to the more options menu (#38210) (39a7bae)
• editor: Add provider and connection settings for Environments v2 (#38402) (c11f031)
• editor: Add workflow dependencies submenu to the workflow menu (#37981) (763aeaa)
• editor: Cleanup Select component (#35523) (bbb7624)
• editor: Hand agent change requests in the preview chat to the AI Assistant (#38283) (56d18bd)
• editor: Mark required agent fields (#38624) (d282dec)
• editor: Show background tasks in the agent preview (#38360) (7efefc7)
• editor: Split workflows into a separate capability row (#38588) (8123c2c)
• Export structured agent artifacts in eval results (#38394) (70e5a2b)
• Grist Node: Add OAuth2 as an authentication option (#34798) (137c64f)
• HTTP Request Node: Add support for PROPFIND, MKCOL, MOVE, COPY and REPORT methods (#24151) (6f5269a)
• Implements AIA inspiration from taxonomy experiment (#38609) (c6ab379)
• Microsoft Teams Node: Add Online Meeting Create or Get operation (#37708) (dfbe574)
• Microsoft Teams Node: Add Online Meeting Delete operation (#37502) (ea73209)
• Microsoft Teams Node: Add Online Meeting Update operation (#37707) (ab38a17)
• Microsoft Teams Node: Add the channel message delete operation (#38428) (ba935fc)
• Microsoft Teams Node: Add the channel message undo delete operation (#38429) (e4ca242)
• Microsoft Teams Node: Add the chat member add operation (#37746) (8c62326)
• Microsoft Teams Node: Add the chat member remove operation (#37747) (8f9faa7)
• Microsoft Teams Node: Add the chat message delete operation (#38426) (fa7553f)
• Microsoft Teams Node: Add the chat message undo delete operation (#38427) (7c7a130)
• Microsoft Teams Node: Add the Service Principal path for Online Meeting Create (#38320) (1abdc92)
• Microsoft Teams Node: Add the Service Principal path for Online Meeting Create or Get (#38322) (05f3527)
• Microsoft Teams Node: Add the Service Principal path for Online Meeting Delete (#38323) (aa84837)
• Microsoft Teams Node: Add the Service Principal path for Online Meeting Get (#38321) (65cd935)
• Microsoft Teams Node: Add the Service Principal path for Online Meeting Update (#38324) (100983e)
• Rename AI Assistant to n8n Assistant (#38065) (5807183)
• Replace Git connection CLI commands with Promotions (#38027) (a8933ce)

Performance Improvements

• core: Install sandbox dependencies from the npm cache again (#38136) (ee8a77e)
• core: Stop copying user workflows into the Instance AI sandbox (#38135) (b1f0603)