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English(EN) MCP servers stopped working in July 2026 — here is the exact change (with a working diff)

MCP协议更新导致旧服务器崩溃;新SDK需要特定配置

模型上下文协议(MCP)已发生重大变化,其SDK和规范已更新至2.0版本,日期为2026年7月28日。这些更新导致旧的MCP服务器实现静默失败,通常表现为“未找到工具”的错误。关键的破坏性更改包括:服务器现在是一个工厂函数而不是直接实例;仅使用ES模块需要特定的TypeScript配置;如果未明确指定协议版本,`server/discover`方法将返回错误。 AI

影响 使用模型上下文协议的开发人员必须将其服务器更新到最新的SDK,并遵守新的配置要求,以避免静默失败。

排序理由 该条目详细介绍了破坏性更改,并为特定软件协议的SDK和规范提供了diff,这是对使用该工具的开发人员的技术更新。

在 dev.to — MCP tag 阅读 →

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MCP协议更新导致旧服务器崩溃;新SDK需要特定配置

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该条目详细介绍了破坏性更改,并为特定软件协议的SDK和规范提供了diff,这是对使用该工具的开发人员的技术更新。
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product, infra
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报道来源 [1]

  1. dev.to — MCP tag TIER_1 English(EN) · Code-0-0 ·

    MCP servers stopped working in July 2026 — here is the exact change (with a working diff)

    <p>If you copied an MCP server example in the last year and it stopped working, you are not doing anything wrong. The protocol and the TypeScript SDK both changed, and the old shape fails <em>silently</em>.</p> <p>Here is what you will actually see:<br /> </p> <div class="highlig…