fix(deps): update dependency io.modelcontextprotocol.sdk:mcp to v1 by renovate[bot] · Pull Request #20 · CarmJos/SimpleMCP

renovate · 2026-02-23T13:30:07Z

This PR contains the following updates:

Package	Change	Age	Confidence
io.modelcontextprotocol.sdk:mcp	`0.12.1` → `1.0.0`

Release Notes

modelcontextprotocol/java-sdk (io.modelcontextprotocol.sdk:mcp)

`v1.0.0`

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MCP Java SDK 1.0.0

We are pleased to announce the 1.0.0 GA release of the MCP Java SDK — the official Java SDK for Model Context Protocol servers and clients, maintained in collaboration with Spring AI.

Major Features

MCP Protocol Implementation — Spec-compliant implementation of the Model Context Protocol, including tools, resources, prompts, sampling, elicitation, and progress tracking.
Synchronous and Asynchronous APIs — First-class support for both blocking (McpSyncClient / McpSyncServer) and reactive (McpAsyncClient / McpAsyncServer) programming models.
Official Transport Options — STDIO, Servlet-based (Streamable HTTP and HTTP/SSE) transports out of the box.
Pluggable JSON Serialization — Supports both Jackson 2 and Jackson 3, with Jackson 3 as the default. Integration is decoupled so projects can supply their own binding.
MCP Protocol Version Negotiation — Clients and servers automatically negotiate the highest mutually supported protocol version at connection time.
Authorization & Security — DNS rebinding protection, Origin header validation, and conformance-tested OAuth/auth flows via relevant hooks.
OSGi Support — All modules ship with correct OSGi bundle manifests for use in Eclipse/OSGi runtimes.
BOM for Dependency Management — mcp-bom keeps all SDK module versions aligned with a single import.
MCP Test Module — Reusable test utilities and a conformance test suite for validating server and client implementations.

Spec Compliance

The SDK is compliant with the 2025-06-18 MCP specification and supports protocol version negotiation across 2024-11-05, 2025-03-26, and 2025-06-18.

Work towards 2025-11-25 spec compliance is actively in progress. Key features in that revision include tasks (durable request tracking), tool calling in sampling, URL elicitation, icon metadata, enhanced JSON Schema support, and updated OAuth/security flows. See the Roadmap for details.

Stability in the 1.x Line

With 1.0.0, the SDK transitions to a stable, semantically versioned release line. The project follows Semantic Versioning 2.0.0:

Patch releases (1.0.x) deliver backward-compatible bug fixes.
Minor releases (1.x.0) deliver new, backward-compatible features — including new MCP spec support.
Major releases (2.x) are reserved for breaking API changes or MCP spec revisions that require code changes on the caller side.

Breaking changes are always documented with migration instructions, APIs are deprecated before removal, and pull requests containing breaking changes are labeled accordingly. See VERSIONING.md for the full policy.

What's Changed in 1.0.0

Spring Transports Move to Spring AI 2.0

Moved mcp-spring-webflux and mcp-spring-webmvc to Spring AI 2.0 (#805)

API Cleanup

Removed all APIs deprecated during the RC cycle to establish a clean stable baseline (#807)

Security & Conformance

Added authorization conformance testing using Spring Security (#806)
Updated SECURITY.md to use GitHub Security Advisories (#801)

OSGi

Fixed and simplified OSGi manifest.mf generation (#792)

Governance & Community

Added governance documentation (#808)
Updated community support channel to Stack Overflow (#824)

New Contributors

@scottslewis — OSGi manifest fixes (#792)
@localden — Security advisory process (#801)

Full Changelog: modelcontextprotocol/java-sdk@v0.18.1...v1.0.0

`v0.18.1`

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What's Changed

Fix and simplification for osgi manifest.mf contents generation - Cherry-picked from main (159eb96)

Full Changelog: modelcontextprotocol/java-sdk@v0.18.0...v0.18.1

`v0.18.0`

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What's Changed

fix: Fixed html encoding in javadoc by @ashakirin in #727
fix: Enable javadoc generation for modules with OSGi metadata by @jonathanhefner in #705
fix: Support form and url fields in Elicitation capability per 2025-11-25 spec by @rhtnr in #731
add 2025-11-25 version to ProtocolVersions by @sdelamo in #733
Expose resourcesUpdateConsumer() in sync client by @Randgalt in #735
Upgrade to testcontainers 1.21.4 by @sdeleuze in #743
Fix everything-server-based tests by @chemicL in #756
Add Support for Jackson 3 and use it by default by @filiphr in #742
Decouple mcp-test and mcp-spring modules from Jackson implementation by @chemicL in #760
Conformance tests by @chemicL in #767
Use junit.version for all junit dependencies by @filiphr in #752
Update JUnit 5.10.2 -> 6.0.2 by @Kehrlann in #769
Validate origin header by @Kehrlann in #771
feat: broadcast 2025-11-25 as latest supported client version by @LucaButBoring in #758
feat: added tools name format validation accordingly #SEP-986 by @ashakirin in #764
Moves mcp-json API back into mcp-core for simplified dependencies and support of osgi runtimes by @Kehrlann in #779
DNS rebinding protection: check host header by @Kehrlann in #775
Refine McpJsonDefaults method names by @sdeleuze in #789
Add embedded MkDocs documentation site by @tzolov in #795

New Contributors

@ashakirin made their first contribution in #727
@jonathanhefner made their first contribution in #705
@rhtnr made their first contribution in #731
@sdeleuze made their first contribution in #743
@filiphr made their first contribution in #742

Full Changelog: modelcontextprotocol/java-sdk@v0.17.2...v0.18.0

`v0.17.2`

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This release:

Addresses mostly the testing infrastructure issues.
Fixes a client-side issue with servers that process client-initiated notifications with a 202 Accepted HTTP Header.

Full Changelog: modelcontextprotocol/java-sdk@v0.17.1...v0.17.2

`v0.17.1`

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Bug fix release:

Full Changelog: modelcontextprotocol/java-sdk@v0.17.0...v0.17.1

`v0.17.0`

Compare Source

What's Changed

Fix experimental client capabilities tests by @Kehrlann in #670
Fix typo in test name by @mingo1996 in #661
Client transports: make #protocolVersions() configurable by @Kehrlann in #669
chore: Spring 5 compatibility by @He-Pin in #649
Fix the baseUrl is configured with a trailing slash #645 by @leehaut in #646
WebMvcSseServerTransportProvider: do not include session ID in SSE event by @Kehrlann in #677
refactor: use builder pattern for CallToolResult and simplify lambda expressions in tests by @codeboyzhou in #652
Basic version negotiation capabilities by @Kehrlann in #684
Revert "WebClientStreamableHttpTransport: use Spring-5 compatible met…hods (#649)" by @tzolov in #696

New Contributors

@mingo1996 made their first contribution in #661

Full Changelog: modelcontextprotocol/java-sdk@v0.16.0...v0.17.0

`v0.16.0`

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What's Changed

feat: enhance error handling with custom error code preservation by @tzolov in #653
Bump json-schema-validator from 1.5.7 to 2.0.0 by @uarlouski in #660
fix: JSONRPCResponse JavaDoc by @vorburger in #657
fix(docs): Remove broken @see link in McpServer.java Javadoc by @hbsjz-swl in #614
feat(schema): support Object type for progressToken by @tzolov in #663

New Contributors

@uarlouski made their first contribution in #660
@vorburger made their first contribution in #657
@hbsjz-swl made their first contribution in #614

Full Changelog: modelcontextprotocol/java-sdk@v0.15.0...v0.16.0

`v0.15.0`

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What's Changed

define explicitely that values should always be included in code completions by @sdelamo in #601
fix remove name when using @JsonTypeInfo(use = JsonTypeInfo.Id.DEDUCTION) by @sdelamo in #600
refactor: change int to Integer for optional numeric fields by @tzolov in #604
fix: allow additional properties by default per JSON Schema spec by @tzolov in #617
Close McpTransportSession on transport close by @Kehrlann in #632
Fix: McpAsyncClient#listTools prevent infinite recursion by @leehaut in #631
chore: standardize client/server implementation names and version by @tzolov in #642
Update dependencies minor versions to fix build on JDK 25 by @bedrin in #640
Support o.s.h.HttpHeaders from both 6.x and 7.x Spring branches by @bedrin in #639

New Contributors

@leehaut made their first contribution in #631
@bedrin made their first contribution in #640

Full Changelog: modelcontextprotocol/java-sdk@v0.14.1...v0.15.0

`v0.14.1`

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Full Changelog: modelcontextprotocol/java-sdk@v0.14.0...v0.14.1

`v0.14.0`

Compare Source

What's Changed

refactor: Improve resource template management and API consistency by @tzolov @pascalconfluent #576
fix: handle resource not found according to spec by @sdelamo in #567
feat: add optional lastModified field to Annotations record by @tzolov in #568
fix: typo MCP_SESSION_ID, keep consistent style with other identifiers by @JunJieLiu51520 in #564
refactor: improve MCP server resilience and error handling by @tzolov in #579
fix: when using JsonTypeInfo.DEDUCTION don’t add include by @sdelamo in #587
Client: handle server responses with Content-Length: 0 by @Kehrlann in #588
fix: Handle non-compliant notification responses by @tzolov in #589
feat(client): add client tool output schema validation and caching by @pantanurag555 @tzolov @chemicL @Kehrlann #302

New Contributors

@JunJieLiu51520 made their first contribution in #564

Full Changelog: modelcontextprotocol/java-sdk@v0.13.1...v0.14.0

`v0.13.1`

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Full Changelog: modelcontextprotocol/java-sdk@v0.13.0...v0.13.1

`v0.13.0`

Compare Source

Release Notes

🚀 Major Features & Enhancements

Protocol Version Support

Added MCP protocol version 2025-06-18 support for streamable-http and stateless transports (#558)
- Set MCP_2025_06_18 as upper supported protocol version
- Updated LATEST_PROTOCOL_VERSION constant to reflect new upper bound

Module Restructuring

Extracted mcp-core module (#557) - ⚠️ BREAKING CHANGE
- Created new mcp-core module free of Jackson dependencies
- mcp module now serves as an umbrella module bringing together mcp-json-jackson2 and mcp-core
- Classes are now in different JARs, which may affect classpath dependencies
Jackson decoupling (#543) - Related to (#557)
- Abstract away Jackson usage with SPI interfaces
  Creates two modules, mcp-json and mcp-json-jackson. It removes the com.fasterxml.jackson.core:jackson-databind and com.networknt:json-schema-validator dependencies from the mcp (now mcp-core) module. The mcp-core (mcp previously) module now only depends on com.fasterxml.jackson.core:jackson-annotations.
  To use Jackson, you have to add mcp-jackson to your dependencies in addition to mcp-core. I added the dependency mcp-jackson to both mcp-spring-mvc and mcp-spring-webflux to avoid a breaking change in those modules.

Enhanced Tool Output Support

Support for array-type structured content in tools (#551) - ⚠️ BREAKING CHANGE
- Changed CallToolResult.structuredContent type from Map<String,Object> to Object
- Now supports both objects and arrays as structured content output
- Updated JsonSchemaValidator to validate any Object type
- Deprecated CallToolResult constructors in favor of builder pattern
- Aligns with MCP specification requirements for array-type output schemas

🐛 Bug Fixes

Session Management

Fixed LifecycleInitializer error recovery (#549)
- Initializer can now recover from errors during doInitialize (e.g., HTTP errors)
- Prevents getting stuck in error state and allows subsequent initialization calls to work
- Particularly beneficial for OAuth2 token fetch scenarios

Serialization Improvements

Added JsonInclude annotation to notification records (#552)
- Enhanced proper JSON serialization for ResourcesUpdatedNotification and LoggingMessageNotification
- Excludes absent (null/Optional.empty()) fields from serialized output
- Ensures consistent serialization behavior across all notification types

Test Infrastructure

Standardized test parameterization (#556)
- Replaced @ValueSource with @MethodSource for parameterized tests
- Added consistent clientsForTesting() methods
- Removed hardcoded Spring-related labels from framework-agnostic mcp-test module
- Minor breaking change: moved utility classes from io.modelcontextprotocol.utils to io.modelcontextprotocol.util

⚠️ Breaking Changes Summary

Module Structure Changes (#557 and #543))
- Classes previously in mcp are now in mcp-core. mcp module now serves as an umbrella module bringing together mcp-json-jackson2 and mcp-core.
- May require classpath adjustments
Tool Result API Changes (#551)
- CallToolResult.structuredContent() now returns Object instead of Map<String,Object>
- Requires explicit casting when accessing map-like content: ((Map<String,Object>) result.structuredContent()).get("key")
- Deprecated constructors - use builder pattern instead
- Custom JsonSchemaValidator implementations need signature updates
Package Name Changes (#556)
- Utility classes moved from io.modelcontextprotocol.utils to io.modelcontextprotocol.util

📝 Migration Guide

For Tool Result Changes

// Before
result.structuredContent().get("key")

// After  
((Map<String,Object>) result.structuredContent()).get("key")

// Use builder pattern instead of deprecated constructors
CallToolResult.builder()
  .content(content)
  .isError(isError)
  .structuredContent(structuredContent)
  .build()

For Module Dependencies

Ensure your dependencies account for the new module structure:

mcp-core for Jackson-free core functionality
mcp continues to work as umbrella module with Jackson support

New Contributors

@sdelamo made their first contribution in #557
@graemerocher made their first contribution in #543
@valuesource made their first contribution in #556

Full Changelog: modelcontextprotocol/java-sdk@v0.12.1...v0.13.0

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fix(deps): update dependency io.modelcontextprotocol.sdk:mcp to v1

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fix(deps): update dependency io.modelcontextprotocol.sdk:mcp to v1#20

fix(deps): update dependency io.modelcontextprotocol.sdk:mcp to v1#20
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Release Notes

MCP Java SDK 1.0.0

Major Features

Spec Compliance

Stability in the 1.x Line

What's Changed in 1.0.0

Spring Transports Move to Spring AI 2.0

API Cleanup

Security & Conformance

OSGi

Governance & Community

New Contributors

What's Changed

What's Changed

New Contributors

What's Changed

New Contributors

What's Changed

New Contributors

What's Changed

New Contributors

What's Changed

New Contributors

Release Notes

🚀 Major Features & Enhancements

Protocol Version Support

Module Restructuring

Enhanced Tool Output Support

🐛 Bug Fixes

Session Management

Serialization Improvements

Test Infrastructure

⚠️ Breaking Changes Summary

📝 Migration Guide

For Tool Result Changes

For Module Dependencies

New Contributors

Configuration

Uh oh!

Reviewers

Assignees

Labels

Projects

Milestone

Development

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0 participants

renovate bot commented Feb 23, 2026 •

edited

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