Version: 2.0 On this page
May 2026
✨ New Features
Added Agent Secrets documentation covering the /v2/agents/{agent_key}/secrets resource, the {"$ref": "agent.secrets.<name>"} pattern in argument_override, masking on read and in tool_input events, and migrating credentials off agent.metadata
Added Slack Connectors documentation (#5552)
Added chunking strategies guide and related docs links (#5460)
📚 Context Engineering
Documented fire_every and skip_first on templated reminders, including the late-conversation reminding pattern for combating context rot and the post-compaction counter reset
Added a Tool Output Transform section covering jq projection of tool responses, with real web_search / web_get shapes and a search → fetch pairing example
Promoted tool-output gate pattern in agents/steps docs (#5519)
📝 Documentation Changes
Added 'The platform' section explaining architecture, agents, and how to build (#5618)
Added integration-points concept doc and web_get how-to (#5391)
Moved Integrations documentation under Agents and cross-linked (#5408)
Documentation updates for agents, security, and evaluation (#5496)
Refined onboarding pages and removed edit page links (#5364)
April 2026
✨ New Features
Added Glossaries documentation covering term-to-expansion mappings, matching behavior, and attaching glossaries to agent steps via glossary_expansion reminders
Added Pipelines documentation (quickstart, concepts, sources, verification, dead letters) for automated bulk processing of external data through agents
Added Multi-Client Steering documentation covering multi-device session consumption, behavior: steer vs follow_up, and mid-turn interrupts
Added Agent Skills for coding agents docs page (#5208)
Added Python SDK Agents documentation (#5095)
📚 Context Engineering
Added a dedicated Context Engineering section with an opinionated overview and deep-dive pages for Compaction, Reminders, Skills, Tool-Output Offloading, and Steps
Overview covers the pillars of a well-engineered agent: retrieval, instructions, tool configuration, sub-agent delegation, long-session management, tool-output protection, and monitoring
📚 API Reference Updates
Updated the API Reference spec with all features released January–April 2026
Replaced x-supported-api-key-type annotations with x-required-roles on all 133 endpoints, showing exactly which API roles, corpus roles, and agent roles grant access
Each endpoint page now shows role badges in the authorization section
📝 Documentation Changes
Reorganized API Reference sidebar into grouped sections (Agents, Data, Search and Retrieval, Access Control, Analytics, Platform, Quality and Evaluation)
Rewrote Role-Based Access Control documentation to cover all four role tiers: API roles (13 account-level roles), corpus roles (viewer/editor/administrator/owner), agent roles (agent_user/agent_viewer/agent_developer/agent_administrator), and platform roles
Added API conventions and authentication documentation to the API Reference introduction page
Added retrieval tuning guides and cleaned up search-and-retrieval docs (#5211)
Added llms.txt support for docs site (#5128)
Added structured output usage guide (#5135)
March 2026
✨ New Features
Added Context Compaction documentation covering automatic context summarization, session forking, and token limit management
Added Tool Versioning and Metadata documentation covering category, lineage, version, tool group metadata, and experimental tool marking
Added Tool-Output Offloading documentation covering configurable thresholds, session artifacts, and artifact_read / artifact_grep / artifact_jq tools
February 2026
✨ New Features
Added Agent Reminders documentation covering re-injection of instructions into user inputs and tool outputs for long-session context management
Added Multi-Step Agent Workflows documentation covering named steps, step-specific instructions, tools, reminders, and configurable transition conditions
Added Agent Schedules documentation covering scheduled agent execution at specified intervals, session creation, and execution history
Added Agent Skills documentation covering named skills for explicit capability invocation and deterministic tool control
Added Concurrent Agent Sessions documentation covering multi-client interaction, interrupt handling, and collaborative workflows
January 2026
📝 Documentation Changes
Enhance Agents content with updated quickstart, concepts, instructions, and tools
December 2025
✨ New Features
Add new integration between Vectara and Speechmatics (#538)
Enhance agents with configurable, autonomous subagents (#526)
Enhance agent sessions with artifact storage (#524)
📝 Documentation Changes
Add a tutorial about how to build a chatbot with the Agent APIs (#542)
Misc documentation and link fixes (#541)
Update Vectara trial page (#540)
Add List metadata types and IN operator syntax examples (#537)
Restructure API Reference sidebar categories (#536)
November 2025
📚 API Changes
Enhance API Reference with Supported API Key Types for Each Endpoint (#530)
Enhance API Reference endpoint descriptions (#527)
Update the API Reference with Lambda Tool and Artifact enhancements (#517)
📝 Documentation Changes
Enhance search and retrieval section (#529)
Enhance navbar design and convert markup to markdown. (#528)
Navigation improvements (#521)
Enhance documentation structure with new layout (#519)
Enhance CodePanel v2 with a live code editor and syntax highlighting improvements (#508)
October 2025
✨ New Features
Enhance Agents with Retry LLM Configuration (#510)
📚 API Changes
Add Agent LLM Retry Configuration to API Reference (#511)
📝 Documentation Changes
Add new tutorial on how to use OpenAI SDK with Vectara Chat Completions API (#509)
Add Conversational AI content to Platform and Agents overviews (#507)
Update links and formatting in Python SDK Documents (#505)
September 2025
✨ New Features
Introduce the tech preview of Vectara Agents Framework (#491)
📚 API Changes
Fix API Reference for Tool and Instruction sections (#502)
Reorganize Agent Sessions in API Reference (#499)
Add Agents APIs to API Reference (#497)
Enhance API Reference with additional improved examples (#495)
📝 Documentation Changes
Fix MCP broken link in the agents page (#504)
Enhance Agents documentation for Tools and Instructions (#503)
Refresh API Reference (#501)
Introduce new section about Private Deployment options such as on premise (#498)
Enhance documentation around data I/O, Agents, model selection, and BYO-LLM with additional API Concepts cleanup for accuracy and discoverability (#496)
August 2025
✨ New Features
Add documentation for the tech preview of Fuzzy Metadata Search (#490)
Add content about the Vectara Postman Collection (#487)
Add comprehensive documentation for new Vectara Python SDK (#471)
📚 API Changes
Add Metadata Query API to API Reference (#492)
📝 Documentation Changes
Add data egress process content (#489)
Add topic about how to delete an account (#486)
Add comprehensive documentation for new Vectara Python SDK (#471)
July 2025
✨ New Features
Add documentation for the Vectara Admin Center, a centralized interface for managing on-premise and VPC deployments (#485)
New Consistency-Adjusted Index Capability in Open RAG Eval (#479)
📝 Documentation Changes
Fix body request render in API Reference (#483)
Enhance API Reference usability with automated API key type badges (#481)
Add detailed mapping of endpoints to required API key types (#477)
Update Query History and Configure Queries sections, enhancing descriptions and screenshots (#476)
Enhance chatbot tutorial with production readiness guidance (#473)
Add guidance on using expected value formats with Intelligent Query Rewriting (#464)
Migrate codeblocks to use the new CodePanel plugin formatting (#482)
Enable syntax highlighting in CodePanel component (#478)
June 2025
✨ New Features
Add Query-Aware Hallucination Detection and Correction to the Vectara Hallucination Corrector (#468)
Add new supported languages and enhancements with HHEM 2.3 (#467)
📝 Documentation Changes
Enhance API Documentation with Production-Ready Examples for Query, Upload, Index, and Chat Endpoints (#472)
Refresh list of currently available generation presets (prompts) (#466)
Add tutorial about how to build a chatbot with the Chat API (#463)
Update screenshots for console updates (#452)
📋 Example Updates
Enhance API Documentation with Production-Ready Examples for Query, Upload, Index, and Chat Endpoints (#472)
Create new CodePanel component for customizable code samples with language selection, annotations, and layout configuration (#470)
May 2025
✨ New Features
Add documentation for the List Hallucination Correctors API (#453)
Add documentation for the tech preview of the Vectara Hallucination Corrector (#442)
Add documentation for Table Summarization with Custom Prompts (#436)
📚 API Changes
Update the Correct Hallucinations endpoint in the API Reference (#456)
Add Hallucination Correctors endpoint to the API Reference (#454)
📝 Documentation Changes
Improve API Reference description formatting (#460)
Update the Correct Hallucinations API Definition (#457)
📋 Example Updates
Update Hallucination Corrector model example (#459)
Update Docusaurus configuration to show last date a topic was updated (#462)
April 2025
✨ New Features
Add documentation for the Chat Completions API (#446)
Add documentation for the Evaluate Factual Consistency (HHEM) API (#445)
Add documentation for Mockingbird 2 (#439)
Add documentation to define a custom LLM configuration to use models from OpenAI, Anthropic, and Google (#437)
📚 API Changes
Add the Evaluate Factual Consistency API and the Chat Completions API to the API Reference (#444)
📝 Documentation Changes
Expand Authentication section with new guides on enterprise access patterns, organizational role scoping, and authorization workflows (#426)
Refine design of heading styles (#450)
Install Mermaid for creating diagrams (#443)
Update package.json with API documentation build script (#438)
Upgrade Docusaurus Platform from 2.4.3 to 3.7 (#422)
March 2025
✨ New Features
Add documentation for the tech preview of the Expanded Encoder Management (#425)
Add documentation for the tech preview of the expanded LLM Management APIs (#420)
Add content for new integration between Vectara and Confluent (#414)
📚 API Changes
Add List Table Extractors and Get OAuth Token to the API Reference (#430)
Add the Delete LLM API, Get LLM API, and Create Encoder API and Chunking Strategy to the API Reference (#423)
📝 Documentation Changes
Update Encoder parameters (#433)
Clarify that filterable metadata fields are not encrypted (#427)
Update content and screenshots for the File Upload UI, the Documents UI, and the Query UI (#421)
Update model_parameters with new llm_name parameter in the advanced summarization options (#419)
📋 Example Updates
Update Encoder examples (#431)
February 2025
✨ New Features
Add documentation for the tech preview of Integrating External LLMs (#413)
Add documentation for the tech preview of Document Summarization (#412)
Add documentation for the tech preview of Intelligent Query Rewriting (#408)
📚 API Changes
Add the Summarize Document API, Create LLM API, and Compute Corpus Size API to the API Reference (#417)
📝 Documentation Changes
Update UI steps on how to reset or delete the corpus (#404)
January 2025
✨ New Features
Updated to enable Typescript SDK (#393)
Update HHEM documentation for HHME-2.2 (#379)
Add documentation for the new Knee Reranking feature (#378)
Add new HHEM supported languages and some content enhancements (#352)
📚 API Changes
Uploading JSON in API v2 (#394)
📝 Documentation Changes
Improve Getting Started section layout (#396)
Uploading JSON in API v2 (#394)
Fix broken links in generative prompts (#391)
Fix encoder example with correct value (#388)
Add documentation changelog workflow (#385)
Fix OAuth2 URL and update screenshot (#384)
Add a dedicated changelog for documentation updates, API enhancements and bug fixes (#383)
Add HHEM 2.2 enhancements to Release Notes (#381)
Add new HHEM supported languages and some content enhancements (#352)
📋 Example Updates
Fix encoder example with correct value (#388)
🗑 Deprecated
Uploading JSON in API v2 (#394)
Update Doc Changelog workflow action (#386)
December 2024
✨ New Features
Add documentation for the new Update and Replace Metadata API Definitions (#371)
Add documentation for the querying table data feature (#365)
Add query observability feature to docs (#362)
Add documentation for new chunking strategy parameter (#361)
📚 API Changes
Add documentation for the new Update and Replace Metadata API Definitions (#371)
Add API Reference updates for the new tabular data extraction feature (#366)
Add documentation for the querying table data feature (#365)
Add query observability feature to docs (#362)
📝 Documentation Changes
Improve information architecture of the Capabilities section and metadata content (#374)
Update table extract details (#370)
Update table_extraction_config parameter (#369)
Fix link to the table data blog in release notes (#368)
Userfn example supports traditional if statement (#367)
Add documentation for the querying table data feature (#365)
Add documentation for new chunking strategy parameter (#361)
📋 Example Updates
Userfn example supports traditional if statement (#367)
🗑 Deprecated
Add API v1 deprecation notices (#375)
November 2024
✨ New Features
Add chunking strategy and update descriptions (#351)
📚 API Changes
Add chunking strategy and update descriptions (#351)
📝 Documentation Changes
Update how metadata structuring is handled in API v2 (#358)
Update descriptions for Pro and Enterprise (#356)
update fern.config.json and generators.yml to use latest version. (#355)
Enhance the list of Vectara demos and applications (#354)
Move Reranking subsection (#353)
Add chunking strategy and update descriptions (#351)
October 2024
✨ New Features
Reflect product transition to free trial across documentation (#350)
Add new Integrations section that highlights community collaborations and partnerships (#346)
📚 API Changes
Reflect product transition to free trial across documentation (#350)
updated introduction with proper links (#338)
Get number of documents and document parts (#332)
Add search cutoffs, null handing, and refresh API reference (#331)
📝 Documentation Changes
Reflect product transition to free trial across documentation (#350)
Incorrect syntax in the null score usage chain example (#349)
Correct udf page misspelling. (#348)
Add new Integrations section that highlights community collaborations and partnerships (#346)
Update docs for handling filenames with non-ASCII characters in API v2 (#345)
Add Release Notes to the docs (#344)
Upgrade OpenAPI docs theme. (#340)
Add Video Tutorials section. (#334)
Get number of documents and document parts (#332)
Add search cutoffs, null handing, and refresh API reference (#331)
Update Chain Reranker topic about the array and examples (#330)
📋 Example Updates
Incorrect syntax in the null score usage chain example (#349)
✨ Add query snippet example (#342)
Update Chain Reranker topic about the array and examples (#330)
September 2024
✨ New Features
Add Chain Reranker content (#320)
📚 API Changes
Add request timeouts in docs (#326)
Update corpus API documentation (#324)
Add Chain Reranker content (#320)
Add Generation Presets content to docs (#318)
📝 Documentation Changes
Update corpus API documentation (#324)
Add more UDF examples (#323)
Update Quick Start (#322)
Add name and description to Update Corpus (#319)
Add Generation Presets content to docs (#318)
Update metadata filter topics (#312)
Update prompt syntax (#283)
Update custom prompt topics with Query endpoint details and links (#276)
📋 Example Updates
Add more UDF examples (#323)
August 2024
✨ New Features
Add User Defined Functions Reranker content (#314)
📚 API Changes
Update query order and labels (#310)
📝 Documentation Changes
Improve grpc example for UDF (#317)
Add User Defined Functions Reranker content (#314)
Update introductions to topics in Getting Started and Capabilities (#313)
Update query order and labels (#310)
📋 Example Updates
Improve grpc example for UDF (#317)
July 2024
✨ New Features
Add and update topics for Mockingbird (#308)
Add GPT 4o to list of summarizers (#303)
📚 API Changes
Wrap tabs in API reference so they don't get clipped. (#301)
📝 Documentation Changes
Add note about original BM25 (#309)
Update corpus key and file upload content (#306)
Wrap tabs in API reference so they don't get clipped. (#301)
Fix typos and update screenshots (#299)
Update part.is_title field description (#216)
📋 Example Updates
Update part.is_title field description (#216)
June 2024
✨ New Features
Add new REST API v2 specifications to the documentation (#250)
📚 API Changes
Rename API Playground references to API Reference. (#295)
Update API v2 migration guide (#294)
Put generation_end into the reference. (#291)
Re-enable accordion transition in API playground, to fix bug in which content height wasn't updated correctly (#287)
📝 Documentation Changes
Fix oauth examples. (#300)
Update API v2 download URL (#298)
Fix typos in spec. (#296)
Rename API Playground references to API Reference. (#295)
Change nav from API Playground -> API Reference. (#293)
Fix tips in query endpoint (#288)
Re-enable accordion transition in API playground, to fix bug in which content height wasn't updated correctly (#287)
Fix link to Reranking blog (#286)
Add new REST API v2 specifications to the documentation (#250)
📋 Example Updates
Fix oauth examples. (#300)
May 2024
✨ New Features
Update Reranker topic with the new Vectara Multilingual Reranker v1 (#281)
Add citation summary feature content (#277)
📝 Documentation Changes
Fix query body request (#285)
Point ReactSearch to updated reranker (#280)
Update citation section (#279)
Fix reranking link (#278)
Add examples for functions and operations (#275)
Add summarized search (#274)
Update Information Architecture with new sections for Capabilities and Use Cases (#259)
April 2024
✨ New Features
Add docs for stream concatenation, React-Chatbot, and Stream-Query-Client (#260)
Add Stream Query to the API Playground (#257)
Add new Stream Query API Definition content (#256)
📚 API Changes
Improve List Conversations API parameter descriptions (#266)
Improve prompt examples in query, and update the enable api key and file upload endpoints (#265)
Update prompts to use single-quote in examples (#264)
Update Create Corpus default example (#262)
Fix values in the query body endpoint (#258)
Add Stream Query to the API Playground (#257)
📝 Documentation Changes
Improve List Conversations API parameter descriptions (#266)
Improve prompt examples in query, and update the enable api key and file upload endpoints (#265)
Add context configuration to Query and Highlighting topics (#261)
Fix values in the query body endpoint (#258)
📋 Example Updates
Improve prompt examples in query, and update the enable api key and file upload endpoints (#265)
Update prompts to use single-quote in examples (#264)
Update Create Corpus default example (#262)
Add context configuration to Query and Highlighting topics (#261)
Fix values in the query body endpoint (#258)
March 2024
✨ New Features
Update the API Playground with Factual Consistency Score (#254)
Add content about the new Factual Consistency Score (#252)
📚 API Changes
Update Playground example for FCS (#255)
Update the API Playground with Factual Consistency Score (#254)
Update API References examples for Query, Indexing, and API Keys (#251)
Update Query example in API Playground (#247)
Update API Reference examples for consistency (#240)
📝 Documentation Changes
Update file formats and document structuring (#253)
Update API Reference examples for consistency (#240)
Update Chat APIs overview (#237)
Update API Reference section with improved structure and flow (#231)
Add Content-Disposition header to set the Document ID (#214)
📋 Example Updates
Update Playground example for FCS (#255)
Update file formats and document structuring (#253)
Add content about the new Factual Consistency Score (#252)
Update API References examples for Query, Indexing, and API Keys (#251)
Update Query example in API Playground (#247)
Update API Reference examples for consistency (#240)
Add Content-Disposition header to set the Document ID (#214)
February 2024
✨ New Features
Add Generative Prompts section (#238)
Add documentation for the new Vectara Chat (#235)
Add documentation for the Personal API Key, Index, and Query Keys (#233)
📚 API Changes
Add custom prompts to Query (#239)
Update the API Playground for Chat APIs (#236)
Add documentation for the new Vectara Chat (#235)
Update API Playground for the Personal API Keys (#234)
📝 Documentation Changes
Add Generative Prompts section (#238)
Update the API Playground for Chat APIs (#236)
Add documentation for the Personal API Key, Index, and Query Keys (#233)
Update console and corpus content around account and corpus creation (#224)
📋 Example Updates
Add custom prompts to Query (#239)
Add documentation for the new Vectara Chat (#235)
January 2024
✨ New Features
Add Create-UI and refine copy and layout of Build Apps landing page (#230)
Add Get Usage Metrics to API Playground (#226)
Add List Documents content to Console and API Reference (#218)
Add Account and Corpus Management APIs to Playground (#217)
Add Read Corpus and Update Corpus Enablement topics (#211)
📚 API Changes
Add Get Usage Metrics to API Playground (#226)
Update File Upload API specs (#220)
Add List Documents to API Playground (#219)
Add List Documents content to Console and API Reference (#218)
Add Account and Corpus Management APIs to Playground (#217)
Add Read Corpus and Update Corpus Enablement topics (#211)
📝 Documentation Changes
Add Create-UI and refine copy and layout of Build Apps landing page (#230)
Add Build Applications section (#229)
Update banner with Airbyte partnership information (#225)
Update File Upload API specs (#220)
Fix reranker URL and update search topic with new formatting (#213)
Improve the Index API Definition content (#208)
📋 Example Updates
Update List Documents response example (#221)
Add Read Corpus and Update Corpus Enablement topics (#211)
December 2023
✨ New Features
Add Manager User and List Users to API Playground (#206)
Add List Users and Manage Users topics (#204)
create, delete, enable, list API keys (#201)
📝 Documentation Changes
Fix Q&A redirect (#209)
Indexing documentation is out of date. (#205)
Migrate from data store term to corpus. (#203)
Add API Keys topics to API Reference (#195)
Improve Information Architecture and update several examples (#193)
Add MMR to the Reranking topic (#191)
Add content about Data Ingestion (#188)
Add content about the Index Request Headers (#187)
Updated content about the English and MMR rerankers (#185)
📋 Example Updates
Improve Information Architecture and update several examples (#193)
Support deep-linking to a search. (#200)
Support search on narrower screens (e.g. mobile) (#197)
November 2023
✨ New Features
Add update filter attributes and list jobs to the OpenAPI spec (#176)
📝 Documentation Changes
Update banner for the new metadata filtering capability (#182)
Add update filter attributes and list jobs to the OpenAPI spec (#176)
Add content about structuring document data (#155)
Update Code Samples with specific category for Query Operations (#151)
Update Quick Start with steps, field names, and screenshots (#149)
Add the grpc-timeout option in header to several topics (#148)
📋 Example Updates
Update Code Samples with specific category for Query Operations (#151)
Customize Not Found page. (#184)
Make search more prominent. (#183)
Add a console button to the navigation bar (#168)
Update search with Ctrl-K shortcut. (#164)
Ensure rendering a single instance of search (#163)
Fix rendering of API Playground code in dark mode. (#159)
Add TopicButton, Grid, and Spacer components. (#147)