Blog: Changelogs
52 posts on Changelogs from the Mastra blog.
Mastra Changelog 2026-03-23
Token-aware model routing for observational memory, MongoDB-backed versioned datasets and experiments, Okta SSO auth with RBAC, workflow upgrades, tool suspension handling, and observability improvements.
Mastra Changelog 2026-03-17
AI Gateway tool support in the agentic loop, more reliable observational memory, MCP client diagnostics and per-server control, and improved tracing with spanId, working memory and schema fixes.
Mastra Changelog 2026-03-13
Persistent agent workspace filesystem, observability pipeline upgrades, type-safe server route inference, lower token costs for long-running Observational Memory, and breaking changes to metrics, scores, and ObservabilityBus configuration
Mastra Changelog 2026-03-12
Cloudflare Durable Objects storage adapter,improved observability for MCP tooling, more reliable agent loops and token budgeting, sandbox and workspace extensibility via provider-specific getters and string PIDs
Mastra Changelog 2026-03-11
Dynamic model fallback arrays, Standard Schema normalization with Zod v4 compatibility, customizable request validation for server adapters, and end-to-end RequestContext support for tracing and datasets/experiments.
Mastra Changelog 2026-03-05
Improve tool-call accuracy, MCP fetch hooks receive RequestContext, and reliability updates surface streaming errors, preserve history in stateless tool runs, and clean up orphaned vector embeddings.
Mastra Changelog 2026-03-04
Token-aware workspace output, smarter truncation, LSP resolution, sandbox process control, end-to-end auth and RBAC, workflow path tracking, concurrent-safe snapshots, and harness.sendMessage() file support.
Mastra Changelog 2026-02-26
Supervisor pattern for multi-agent coordination, metadata-only vector queries, more flexible runEvals options, LSP diagnostics after workspace edits, and a new Blaxel sandbox provider.
Mastra Changelog 2026-02-24
Background process management in workspaces and sandboxes, runtime tool configuration via Workspace.setToolsConfig(), and observational memory reliability and introspection improvements.
Mastra Changelog 2026-02-23
AST-based workspace edits, real-time streaming tool argument previews, built-in task tracking tools for Harness, and improved Observational Memory continuity
Mastra Changelog 2026-02-19
A new reusable Harness orchestration layer for agent apps, versioned workspaces and skills, pluggable blob storage, security and discovery upgrades, plus improved tool I/O and streaming behavior, including better chunk handling.
Mastra Changelog 2026-02-13
Datasets and experiments for evaluations, workspace and filesystem lifecycle improvements with safer introspection, and workflow foreach progress streaming.
Mastra Changelog 2026-02-11
Observational memory async buffering (default-on) with new structured streaming events, workspace mounts with CompositeFilesystem for unified multi-provider file access.
Mastra Changelog 2026-02-11
Observational memory async buffering (default-on) with new structured streaming events, workspace mounts with CompositeFilesystem for unified multi-provider file access.
Mastra Changelog 2026-02-04
Observational Memory, skills.sh integrations, plus improved tracing and safer error handling.
Mastra Changelog 2026-01-30
Unified Workspace API, observability and server adapters improvements.
Mastra Changelog 2026-01-20
Server adapters, composite storage, processor system overhaul, AI SDK v6 support, thread cloning, and more.
Mastra Changelog 2025-11-20
Generate endpoint fix for OpenAI streaming, AI SDK v5 fine-grained stream control, and more.
Mastra Changelog 2025-11-14
Mastra v1 is now in beta, we published a new book, and shipped the Mastra UI Dojo.
Mastra Changelog 2025-11-01
Agent Studio, 1.0 Release Preparation, and more.
Mastra Changelog 2025-10-23
Workflow state management, unified streaming, AI tracing updates, and more..
Mastra Changelog 2025-10-03
New model router and automatic model fallbacks.
Mastra Changelog 2025-09-25
New streaming architecture, scoring improvements, and more.
Mastra Changelog 2025-09-18
Resumable streams, structured output API change, bundling overhaul, and more.
Mastra Changelog 2025-09-08
Zod v4 support with v3 compatibility and more.
Mastra Changelog 2025-08-21
New streamVNext and generateVNext methods with AI SDK v5 support, output processors, and more.
Mastra Changelog 2025-08-14
This week we've shipped a major RAG enhancement with semantic markdown chunking and updated our A2A implementation to spec v0.3.0.
Mastra Changelog 2025-08-08
Introducing Scorer API, critical fixes for message handling and parallel workflows, plus improvements to memory filtering and type safety across the board. Plus, we're announcing our first ever conference: TypeScript AI
Mastra Changelog 2025-07-30
Improvements to Agents, Memory, and more.
Mastra Changelog 2025-07-24
Introducing Mastra Templates, MASTRA.BUILD hackathon, StreamVNext protocol, complete eval scores system, and major improvements across the board.
Mastra Changelog 2025-07-17
New memory improvements, new CLI templates, reasoning display in playground, and major improvements across the board.
Mastra Changelog 2025-07-09
Mastra is now Apache-2.0 licensed, Playground goes multi-modal, new memory and RAG features, and more.
Mastra Changelog 2025-06-27
Mastra Cloud public beta, agent network chat, memory improvements, workflow updates, and a new Mastra 101 lesson.
Mastra Changelog 2025-06-20
We added sleep methods to workflows, structured memory to agents, and a new Gladia STT provider.
Mastra Changelog 2025-06-13
Cross-thread memory recall, universal schema support, and enhanced workflow observability.
Mastra Changelog 2025-06-06
Mastra 101, Mastra Auth, and more
Mastra Changelog 2025-05-29
MCP Server updates, streaming support, and more.
Mastra Changelog 2025-05-15
Mastra's latest updates: A2A support, MCP updates, and more.
Mastra Changelog 2025-05-07
Mastra's latest updates: vNext is live, AGUI integration, and linting.
Mastra Changelog 2025-05-01
Mastra's latest updates: vNext workflows, MongoDB vectorDB provider, Streamable HTTP MCP transport, and more.
Mastra Changelog 2025-04-24
Mastra's latest updates: dynamic agents, MCPServer support, vNext workflows, and more.
Mastra Changelog 2025-04-16
Mastra's latest updates: MCP registry registry, model settings in Playground UI, and new Memory docs
Mastra Changelog 2025-04-02
Mastra's Latest Updates: API routing, memory processors, and more
Mastra Changelog 2025-03-27
Mastra's Latest Updates: Nested Workflows, Voice to Voice, and more
Mastra Changelog 2025-03-20
Mastra MCP documentation server, AgentNetwork updates, and more
Mastra Changelog 2025-03-14
Major workflow enhancements, new Mastra Voice features, and more
Mastra Changelog 2025-03-04
Introducing Mastra Cloud and Mastra Voice (as well as a few other things)
Mastra Changelog 2025-02-10
Major updates including AI SDK integration, optimized bundle size through subpath imports, and enhanced storage layer with tracing capabilities
Mastra Changelog 2025-01-31
New Memory API, speech providers, vector store integrations, and core improvements
Mastra Changelog 2025-01-24
New `mastra build` command, evals in dev playground, new model support, and an abstracted deployer package
Mastra Changelog 2025-01-17
Mastra's changelog for Jan 10th, 2025 through Jan 17th, 2025
Mastra Changelog 2025-01-10
Mastra's changelog for Dec 27th 2024 through Jan 10th, 2025