==== BIP 0091 - Reduced threshold Segwit MASF (soft fork)  ====
[[dido:public:ra:xapend:xapend.b_stds:defact:bitcoin:bips| return to the Bitcoin Improvement Proposals ]]

<table>
<caption>Data sheet for Reduced threshold Segwit MASF  </caption>
| Title                      | Reduced threshold Segwit MASF  |
| Layer                      | Consensus (soft fork) |
| Author                     | James Hilliard 	 |
| Comments-Summary           | No comments yet. |
| Comments-URI               | [[https://github.com/bitcoin/bips/wiki/Comments:BIP-0091]]    |
| Status                     | Final | 
| Type                       | Standards Track | 
| Created                    | 2017-05-22  |
| Post History               |  |
| Description                | [[https://github.com/bitcoin/bips/blob/master/bip-0091.mediawiki]] |
| License                    | BSD-3-Clause, CC0-1.0|
</table>

  : **Note**: The following is an excerpt from the official [[dido:public:ra:xapend:xapend.a_glossary:b:bitcoin|Bitcoin]] site. It is provided here as a convenience and is not authoritative. Refer to the original document(s) as the authoritative reference.

=== Abstract ===
  : //This document specifies a method to activate the existing BIP9 segwit deployment with a majority hashpower less than 95%.//


=== Motivation ===
  : //Segwit increases the blocksize, fixes transaction malleability, and makes scripting easier to upgrade as well as bringing many other [[dido:public:apdx.stds:defact:bitcoin:start| benefits]].//

  : //This BIP provides a way for a simple majority of miners to coordinate activation of the existing segwit deployment with less than 95% hashpower. For a number of reasons a complete redeployment of segwit is difficult to do until the existing deployment expires. This is due to 0.13.1+ having many segwit related features active already, including all the P2P components, the new network service flag, the witness-tx and block messages, compact blocks v2 and preferential peering. A redeployment of segwit will need to redefine all these things and doing so before expiry would greatly complicate testing.//