Replace "rules/force" mutation with a "cannot be ignored" prefix to rule names

1 files changed, 3 insertions, 2 deletions

diff --git a/bip-0145.mediawiki b/bip-0145.mediawiki
index 0448b6c..b04c9e6 100644
--- a/bip-0145.mediawiki
+++ b/bip-0145.mediawiki
@@ -25,8 +25,9 @@ The template Object is revised to include a new key:
 | costlimit || No || Number || total cost allowed in blocks
 |}
 
-The "rules/force" mutation MUST NOT be enabled for blocks including transactions with witness data unless the client has indicated in the template request that it also supports the "segwit" rule.
-In particular, note that even if the template's "rules" list includes "segwit", but none of the transactions have witness data, the server MAY use the "rules/force" mutation to support old miners.
+The '!' rule prefix MUST be enabled on the "segwit" rule for templates including transactions with witness data.
+In particular, note that even if the client's "rules" list lacks "segwit", server MAY support old miners by producing a witness-free template and omitting the '!' rule prefix for "segwit" in the template's "rules" list.
+If the GBT server does not support producing witness-free templates after its activation, it must also use the '!' rule prefix in the "vbavailable" list prior to activation.
 
 ====Transactions Object Format====