VERSION_DEFAULTS = {
"http://allmydata.org/tahoe/protocols/storage/v1" :
{ "maximum-immutable-share-size": 2**32,
+ "maximum-mutable-share-size": 2*1000*1000*1000, # maximum prior to v1.9.2
"tolerates-immutable-read-overrun": False,
"delete-mutable-shares-with-zero-length-writev": False,
},