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Define DEPRECATION_HEIGHT, clarify that 16 weeks is approximate

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str4d 2018-02-05 01:15:34 +00:00
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@ -45,8 +45,9 @@ implementation or a specific branch of Zcash. [#consensual-currency]_ As such, d
always have the freedom to choose different variants or branches which offer different design trade-offs. always have the freedom to choose different variants or branches which offer different design trade-offs.
The current Zcash software includes an *auto-senescence* feature, causing nodes running a particular version The current Zcash software includes an *auto-senescence* feature, causing nodes running a particular version
to automatically shut down 16 weeks after that version was released. This was implemented for several reasons to automatically shut down approximately 16 weeks after that version was released (specifically, at the block
[#release-lifecycle]_: height ``DEPRECATION_HEIGHT`` defined in the source code for that version). This was implemented for several
reasons: [#release-lifecycle]_
- It gives the same systemic advantage of removing old software as auto-upgrade behavior. - It gives the same systemic advantage of removing old software as auto-upgrade behavior.