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Model Context Protocol adopts 12-month deprecation policy, removes six features

By PulseAugur Editorial · [1 sources] ·

The Model Context Protocol (MCP) has introduced a formal deprecation policy, ensuring a minimum twelve-month window before features are removed. This policy, adopted via SEP-2596, governs protocol messages, capabilities, transports, and other specification elements. Despite the new policy, the same revision also removed six features, including session headers, initialization handshakes, and specific HTTP endpoints, with the policy's registry noting that no features have yet been removed under its new guidelines. AI

IMPACT Establishes clearer upgrade paths for developers integrating with the Model Context Protocol.

RANK_REASON Policy update and feature removals for a technical protocol specification. [lever_c_demoted from research: ic=1 ai=0.4]

Read on dev.to — MCP tag →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Model Context Protocol adopts 12-month deprecation policy, removes six features

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19 / 100
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Policy update and feature removals for a technical protocol specification. [lever_c_demoted from research: ic=1 ai=0.4]
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policy, product
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Standard
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Breaking (< 6h)
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COVERAGE [1]

  1. dev.to — MCP tag TIER_1 English(EN) · Alex @ Vibe Agent Making ·

    MCP's 2026-07-28 Revision: a 12-Month Deprecation Policy and Six Removals in One Release

    <p>The Model Context Protocol's 2026-07-28 revision adopted a formal deprecation policy with a twelve-month minimum window, and the maintainers led with it. The release post promises "a formal deprecation policy with a twelve-month minimum window so you can plan upgrades instead …

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