<p>"This BIP is to be deployed by version-bits BIP9. Exact details TDB."</p>

<p><a href="https://www.reddit.com/r/Bitcoin/comments/4cpl1y/segregated_witness_when_and_how_does_it_activate/" rel="nofollow">https://www.reddit.com/r/Bitcoin/comments/4cpl1y/segregated_witness_when_and_how_does_it_activate/</a></p>

<p>As soon as testing is complete final details should be determined. It sounds like a segwit soft fork is possible</p>

<p>There will not be a need to wait for a 95% adoption threshold:</p>

<p>"A main benefit of the current Segregated Witness design is that it can be deployed as a soft fork. Once the code is accepted and merged, only miners will need to upgrade; all other users can change their software if and whenever they want to, with no risk of being thrown off the network."</p>

<p><a href="https://bitcoinmagazine.com/articles/segregated-witness-enters-final-testnet-stage-includes-lightning-network-support-1459357231" rel="nofollow">https://bitcoinmagazine.com/articles/segregated-witness-enters-final-testnet-stage-includes-lightning-network-support-1459357231</a></p>

CC BY-SA 3.0
2016-05-22T01:11:58.700Z
I'm pretty sure this is incorrect. SegWit will only activate after 95% miner acceptance. There will be a soft fork and it will be backward compatible so users can update in their own time. But it still requires 95%.
Jannes
CC BY-SA 3.0
2016-05-30T11:01:54.710Z
The "only miners need to upgrade" is exactly the 95% threshold specified by BIP9. The fact that it is a softfork just makes it safe for non-miners to not update. It doesn't avoid the need for a 95% threshold.
Pieter Wuille
CC BY-SA 3.0
2016-05-21T07:27:28.607Z
2016-05-21T07:27:28.607Z
Imagin Ation
<p>By current agreement Segregated Witness will only activate after it reaches 95% of the miners signaling readiness. </p>

<p>Sending Segregated Witness transactions before that would be foolish, as if they were to be included in a block, anyone would be able to spend the outputs before Segregated Witness is enforced. They are however, non-standard to current versions of Bitcoin Core.</p>

<p>If the 95% threshold is not achieved for an extended period of time, there might be a proposal to lower the threshold.</p>

CC BY-SA 3.0
2016-05-30T11:15:59.643Z
Note that segwit transactions are non-standard to all Bitcoin Core versions since 0.10, so they are unlikely to be mined (but still, don't bet on that).
Pieter Wuille
CC BY-SA 3.0
2016-05-30T09:57:58.043Z
2016-05-30T11:19:23.863Z
2016-05-30T11:19:23.863Z
Murch
<p>What happens if segregated witness never reaches the 95% adoption threshold from miners? Will it still take effect for those transactions where the miners have adopted it?</p>

<mining-pools><segregated-witness>
segregated witness adoption
Luke Benton
# segregated witness adoption

(Asked by: username_0 on 2016-05-21)

What happens if segregated witness never reaches the 95% adoption threshold from miners? Will it still take effect for those transactions where the miners have adopted it?

**Tags:** mining-pools, segregated-witness


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## 2 answers

### Answer by username_1 on 2016-05-21. Score: 0 | Accepted answer

"This BIP is to be deployed by version-bits BIP9. Exact details TDB."

<https://www.reddit.com/r/Bitcoin/comments/4cpl1y/segregated_witness_when_and_how_does_it_activate/>

As soon as testing is complete final details should be determined. It sounds like a segwit soft fork is possible

There will not be a need to wait for a 95% adoption threshold:

"A main benefit of the current Segregated Witness design is that it can be deployed as a soft fork. Once the code is accepted and merged, only miners will need to upgrade; all other users can change their software if and whenever they want to, with no risk of being thrown off the network."

<https://bitcoinmagazine.com/articles/segregated-witness-enters-final-testnet-stage-includes-lightning-network-support-1459357231>

> **Comments:**
> **username_2**: I'm pretty sure this is incorrect. SegWit will only activate after 95% miner acceptance. There will be a soft fork and it will be backward compatible so users can update in their own time. But it still requires 95%.  
> **username_3**: The "only miners need to upgrade" is exactly the 95% threshold specified by BIP9. The fact that it is a softfork just makes it safe for non-miners to not update. It doesn't avoid the need for a 95% threshold.  

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### Answer by username_4 on 2016-05-30. Score: 2

By current agreement Segregated Witness will only activate after it reaches 95% of the miners signaling readiness.

Sending Segregated Witness transactions before that would be foolish, as if they were to be included in a block, anyone would be able to spend the outputs before Segregated Witness is enforced. They are however, non-standard to current versions of Bitcoin Core.

If the 95% threshold is not achieved for an extended period of time, there might be a proposal to lower the threshold.

> **Comments:**
> **username_3**: Note that segwit transactions are non-standard to all Bitcoin Core versions since 0.10, so they are unlikely to be mined (but still, don't bet on that).  

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