dependabot[bot] opened a new pull request, #3234: URL: https://github.com/apache/cxf/pull/3234
Bumps [org.atmosphere:atmosphere-runtime](https://github.com/Atmosphere/atmosphere) from 3.1.0 to 4.0.53. <details> <summary>Release notes</summary> <p><em>Sourced from <a href="https://github.com/Atmosphere/atmosphere/releases";>org.atmosphere:atmosphere-runtime's releases</a>.</em></p> <blockquote> <h2>Atmosphere 4.0.52</h2> <h3>Added</h3> <ul> <li><strong>MCP authorization now validates bearer tokens end-to-end.</strong> A request is authenticated when either a servlet resource-server filter set the request principal (e.g. Spring Security <code>oauth2ResourceServer</code>) <strong>or</strong> a configured <code>TokenValidator</code> accepts the <code>Authorization: Bearer</code> token (loaded from <code>org.atmosphere.auth.tokenValidator</code>, validated by <code>atmosphere-mcp</code> itself — no framework-specific wiring). The RFC 9728 metadata is now served on the agent registration path too. Proven end-to-end on the embedded server, Spring Boot, and Quarkus (JVM). The <code>spring-boot-mcp-server</code> sample gains an opt-in <code>auth</code> profile (default off) demonstrating it.</li> <li><strong>MCP runs on Quarkus.</strong> <code>@Agent</code>-based MCP endpoints now register under the Quarkus extension (the build scan recognizes <code>@Agent</code> and indexes the optional <code>atmosphere-agent</code> / <code>atmosphere-mcp</code> jars when an <code>@Agent</code> class is present). JVM mode; native image is not yet supported for <code>@Agent</code>-based MCP.</li> </ul> <h3>Tested</h3> <ul> <li>Added a stateless <code>2026-07-28</code> round-robin end-to-end test (two <code>tools/call</code> with no session header both succeed, plus <code>server/discover</code> and <code>Mcp-Method</code> mismatch) in <code>modules/integration-tests</code>, proving the no-session-affinity claim over live HTTP.</li> </ul> <h2>Atmosphere 4.0.51</h2> <h3>Added</h3> <ul> <li><strong>MCP <code>2026-07-28</code> release candidate</strong> — the largest MCP revision since launch, implemented as a <strong>stateless dialect that coexists</strong> with the session-based protocol (<code>2024-11-05</code> through <code>2025-11-25</code>). The dialect is selected per request (the client carries the protocol version in <code>params._meta</code> or calls <code>server/discover</code>), so existing clients are unaffected. Stateless core has no <code>Mcp-Session-Id</code> and no <code>initialize</code> handshake, so the server runs behind a plain round-robin load balancer with no session affinity.</li> <li><strong>MCP operability</strong> — <code>Mcp-Method</code> / <code>Mcp-Name</code> routing headers (validated against the body), <code>ttlMs</code> + <code>cacheScope</code> cache metadata on <code>tools/list</code> / <code>resources/list</code> / <code>resources/read</code>, and W3C Trace Context (<code>traceparent</code> / <code>tracestate</code> / <code>baggage</code>) read from <code>_meta</code> and bridged into the OpenTelemetry span.</li> <li><strong>MCP Tasks extension</strong> (<code>io.modelcontextprotocol/tasks</code>) and multi-round-trip input — <code>@McpTool(longRunning = true)</code> returns a task handle polled via <code>tasks/get</code>, and the stateless dialect can return <code>InputRequiredResult</code> with a base64 <code>requestState</code> to request more input mid-call and resume on any instance.</li> <li><strong>JSON Schema 2020-12</strong> dialect (<code>$schema</code>) on generated tool input schemas, and a standardized resource-not-found error (<code>-32602</code>) on the stateless dialect.</li> <li><strong>MCP Apps (SEP-1865)</strong> — <code>@McpTool(uiResource = "ui://…")</code> plus a <code>text/html;profile=mcp-app</code> resource makes a tool an MCP App. The Atmosphere console is a working host: it renders the app in a sandboxed iframe, runs a <strong>bidirectional App Bridge</strong> (apps call server tools through the host under the policy gateway; the host lists and calls the app's own <code>appCapabilities.tools</code>), and uses a <strong>separate-origin sandbox proxy</strong> for isolation (<code>atmosphere.mcp-sandbox-origin</code>, with a <code>localhost</code>↔</li> </ul> <!-- raw HTML omitted --> </blockquote> <p>... 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