Proposals for new requirements are published in the Windows Logo Program newsletter, which is distributed by e-mail.
To receive weekly notification of any Logo Program proposals, subscribe to the mail list as described at http://www.microsoft.com/winlogo/hardware/.
Dates for New Requirements
As a rule, future requirements related to operating system features go into effect when the related operating system is available and the OEM begins shipping systems that contain features supported under the new operating system. See "Windows Logo Program Dates" in Chapter 1.
In general, Microsoft attempts to meet the following general guidelines for proposing new Logo Program requirements.
Change required
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Advance notice
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Chipset revision
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12 - 18 months
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Driver revision
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6 months
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Firmware revision
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6 months
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For example, future Logo Program requirements related to incorporation of a new driver stack within the operating system will not be required until Microsoft provides full technology support:
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Operating-system drivers are released.
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DDK support is released.
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Test kit is released by WHQL.
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