Major - P3 $maxDistance cannot be negative in 2.6, seems like a reasonable requirement, but a change from 2.4 that should be documented
In 2.4
> db.test.find({loc: {$nearSphere: [0,0], $maxDistance: -1}})
>
In 2.5:
> db.test.find({loc: {$nearSphere: [0,0], $maxDistance: -1}})
error: { "$err" : "$maxDistance must be non-negative", "code" : 16896 }
> db.runCommand({"buildinfo": 1})
{
"version" : "2.5.5-pre-",
"gitVersion" : "f65a0b814b8c77e3fbe90bca0c061c9b77f6acdb",
"OpenSSLVersion" : "",
"sysInfo" : "Darwin Andrew-Emil-MacBook-Pro.local 12.4.0 Darwin Kernel Version 12.4.0: Wed May 1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64 x86_64 BOOST_LIB_VERSION=1_49",
"loaderFlags" : "-fPIC -pthread -Wl,-bind_at_load -mmacosx-version-min=10.6",
"compilerFlags" : "-Wnon-virtual-dtor -Woverloaded-virtual -fPIC -fno-strict-aliasing -ggdb -pthread -Wall -Wsign-compare -Wno-unknown-pragmas -Winvalid-pch -Werror -pipe -O3 -Wno-unused-function -Wno-deprecated-declarations -mmacosx-version-min=10.6",
"allocator" : "tcmalloc",
"versionArray" : [
2,
5,
5,
-100
],
"javascriptEngine" : "V8",
"bits" : 64,
"debug" : false,
"maxBsonObjectSize" : 16777216,
"ok" : 1
}