From 062e40b491630c23c57af24eb460629740d36c85 Mon Sep 17 00:00:00 2001
From: BtcDrak <btcdrak@gmail.com>
Date: Fri, 23 Oct 2015 18:14:05 +0100
Subject: Add note about not consuming nVersion bits

---
 bip-0065.mediawiki | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

(limited to 'bip-0065.mediawiki')

diff --git a/bip-0065.mediawiki b/bip-0065.mediawiki
index 3b477bd..347f0dc 100644
--- a/bip-0065.mediawiki
+++ b/bip-0065.mediawiki
@@ -273,14 +273,18 @@ https://github.com/petertodd/bitcoin/commit/ab0f54f38e08ee1e50ff72f801680ee84d0f
 
 ==Deployment==
 
-We reuse the double-threshold switchover mechanism from BIPs 34 and
-66, with the same thresholds, but for nVersion = 4. The new rules are
+We reuse the double-threshold IsSuperMajority() switchover mechanism used in
+BIP 66 with the same thresholds, but for nVersion = 4. The new rules are
 in effect for every block (at height H) with nVersion = 4 and at least
 750 out of 1000 blocks preceding it (with heights H-1000..H-1) also
 have nVersion = 4. Furthermore, when 950 out of the 1000 blocks
 preceding a block do have nVersion = 4, nVersion = 3 blocks become
 invalid, and all further blocks enforce the new rules.
 
+It should be noted that BIP9 involves permanently setting a high-order bit to
+1 which results in nVersion >= all prior IsSuperMajority() soft-forks and thus
+no bits in nVersion are permanently lost.
+
 
 ==Credits==
 
-- 
cgit v1.2.3

