# Versioned Nodes in n8n

This document lists all nodes that have `version` defined as an array in their description.

## From n8n-nodes-base package:

1. **Airtop** - `Airtop.node.js`
2. **Cal Trigger** - `CalTrigger.node.js`
3. **Coda** - `Coda.node.js`
4. **Code** - `Code.node.js` - version: [1, 2]
5. **Compare Datasets** - `CompareDatasets.node.js`
6. **Compression** - `Compression.node.js`
7. **Convert To File** - `ConvertToFile.node.js`
8. **Email Send V2** - `EmailSendV2.node.js`
9. **Execute Workflow** - `ExecuteWorkflow.node.js`
10. **Execute Workflow Trigger** - `ExecuteWorkflowTrigger.node.js`
11. **Filter V2** - `FilterV2.node.js`
12. **Form Trigger V2** - `FormTriggerV2.node.js`
13. **GitHub** - `Github.node.js`
14. **Gmail Trigger** - `GmailTrigger.node.js`
15. **Gmail V2** - `GmailV2.node.js`
16. **Google Books** - `GoogleBooks.node.js`
17. **Google Calendar** - `GoogleCalendar.node.js`
18. **Google Docs** - `GoogleDocs.node.js`
19. **Google Drive V1** - `GoogleDriveV1.node.js`
20. **Google Firebase Cloud Firestore** - `GoogleFirebaseCloudFirestore.node.js`
21. **Google Slides** - `GoogleSlides.node.js`
22. **Google Translate** - `GoogleTranslate.node.js`
23. **GraphQL** - `GraphQL.node.js`
24. **HTML** - `Html.node.js`
25. **HTTP Request V3** - `HttpRequestV3.node.js` - version: [3, 4, 4.1, 4.2]
26. **HubSpot V2** - `HubspotV2.node.js`
27. **If V2** - `IfV2.node.js`
28. **Invoice Ninja** - `InvoiceNinja.node.js`
29. **Invoice Ninja Trigger** - `InvoiceNinjaTrigger.node.js`
30. **Item Lists V2** - `ItemListsV2.node.js`
31. **Jira Trigger** - `JiraTrigger.node.js`
32. **Kafka Trigger** - `KafkaTrigger.node.js`
33. **MailerLite Trigger V2** - `MailerLiteTriggerV2.node.js`
34. **MailerLite V2** - `MailerLiteV2.node.js`
35. **Merge V2** - `MergeV2.node.js`
36. **Microsoft SQL** - `MicrosoftSql.node.js`
37. **Microsoft Teams V1** - `MicrosoftTeamsV1.node.js`
38. **Mindee** - `Mindee.node.js`
39. **MongoDB** - `MongoDb.node.js`
40. **Move Binary Data** - `MoveBinaryData.node.js`
41. **NocoDB** - `NocoDB.node.js`
42. **OpenAI** - `OpenAi.node.js`
43. **Pipedrive Trigger** - `PipedriveTrigger.node.js`
44. **RabbitMQ** - `RabbitMQ.node.js`
45. **Remove Duplicates V1** - `RemoveDuplicatesV1.node.js`
46. **Remove Duplicates V2** - `RemoveDuplicatesV2.node.js`
47. **Respond To Webhook** - `RespondToWebhook.node.js`
48. **RSS Feed Read** - `RssFeedRead.node.js`
49. **Schedule Trigger** - `ScheduleTrigger.node.js`
50. **Set V1** - `SetV1.node.js`
51. **Set V2** - `SetV2.node.js`
52. **Slack V2** - `SlackV2.node.js`
53. **Strava** - `Strava.node.js`
54. **Summarize** - `Summarize.node.js`
55. **Switch V1** - `SwitchV1.node.js`
56. **Switch V2** - `SwitchV2.node.js`
57. **Switch V3** - `SwitchV3.node.js`
58. **Telegram** - `Telegram.node.js`
59. **Telegram Trigger** - `TelegramTrigger.node.js`
60. **The Hive Trigger** - `TheHiveTrigger.node.js`
61. **Todoist V2** - `TodoistV2.node.js`
62. **Twilio Trigger** - `TwilioTrigger.node.js`
63. **Typeform Trigger** - `TypeformTrigger.node.js`
64. **Wait** - `Wait.node.js`
65. **Webhook** - `Webhook.node.js` - version: [1, 1.1, 2]

## From @n8n/n8n-nodes-langchain package:

1. **Agent V1** - `AgentV1.node.js`
2. **Chain LLM** - `ChainLlm.node.js`
3. **Chain Retrieval QA** - `ChainRetrievalQa.node.js`
4. **Chain Summarization V2** - `ChainSummarizationV2.node.js`
5. **Chat Trigger** - `ChatTrigger.node.js`
6. **Document Default Data Loader** - `DocumentDefaultDataLoader.node.js`
7. **Document GitHub Loader** - `DocumentGithubLoader.node.js`
8. **Embeddings OpenAI** - `EmbeddingsOpenAi.node.js`
9. **Information Extractor** - `InformationExtractor.node.js`
10. **LM Chat Anthropic** - `LmChatAnthropic.node.js`
11. **LM Chat DeepSeek** - `LmChatDeepSeek.node.js`
12. **LM Chat OpenAI** - `LmChatOpenAi.node.js`
13. **LM Chat OpenRouter** - `LmChatOpenRouter.node.js`
14. **LM Chat xAI Grok** - `LmChatXAiGrok.node.js`
15. **Manual Chat Trigger** - `ManualChatTrigger.node.js`
16. **MCP Trigger** - `McpTrigger.node.js`
17. **Memory Buffer Window** - `MemoryBufferWindow.node.js`
18. **Memory Manager** - `MemoryManager.node.js`
19. **Memory MongoDB Chat** - `MemoryMongoDbChat.node.js`
20. **Memory Motorhead** - `MemoryMotorhead.node.js`
21. **Memory Postgres Chat** - `MemoryPostgresChat.node.js`
22. **Memory Redis Chat** - `MemoryRedisChat.node.js`
23. **Memory Xata** - `MemoryXata.node.js`
24. **Memory Zep** - `MemoryZep.node.js`
25. **OpenAI Assistant** - `OpenAiAssistant.node.js`
26. **Output Parser Structured** - `OutputParserStructured.node.js`
27. **Retriever Workflow** - `RetrieverWorkflow.node.js`
28. **Sentiment Analysis** - `SentimentAnalysis.node.js`
29. **Text Classifier** - `TextClassifier.node.js`
30. **Tool Code** - `ToolCode.node.js`
31. **Tool HTTP Request** - `ToolHttpRequest.node.js`
32. **Tool Vector Store** - `ToolVectorStore.node.js`

## Examples of Version Arrays Found

Here are some specific examples of version arrays from actual nodes:

### n8n-nodes-base:
- **Code**: `version: [1, 2]`
- **HTTP Request V3**: `version: [3, 4, 4.1, 4.2]`
- **Webhook**: `version: [1, 1.1, 2]`
- **Wait**: `version: [1, 1.1]`
- **Schedule Trigger**: `version: [1, 1.1, 1.2]`
- **Switch V3**: `version: [3, 3.1, 3.2]`
- **Set V2**: `version: [3, 3.1, 3.2, 3.3, 3.4]`

### @n8n/n8n-nodes-langchain:
- **LM Chat OpenAI**: `version: [1, 1.1, 1.2]`
- **Chain LLM**: `version: [1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7]`
- **Tool HTTP Request**: `version: [1, 1.1]`

## Summary

Total nodes with version arrays: **97 nodes**
- From n8n-nodes-base: 65 nodes
- From @n8n/n8n-nodes-langchain: 32 nodes

These nodes use versioning to maintain backward compatibility while introducing new features or changes to their interface. The version array pattern allows n8n to:
1. Support multiple versions of the same node
2. Maintain backward compatibility with existing workflows
3. Introduce breaking changes in newer versions while keeping old versions functional
4. Use `defaultVersion` to specify which version new instances should use

Common version patterns observed:
- Simple incremental: `[1, 2]`, `[1, 2, 3]`
- Minor versions: `[1, 1.1, 1.2]` (common for bug fixes)
- Patch versions: `[3, 4, 4.1, 4.2]` (detailed version tracking)
- Extended versions: `[1, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7]` (Chain LLM has the most versions)