This is a JSON mapping of CFNetwork versions to OS X versions. It's been culled from UserAgent strings.

cfnetwork-map.json

{
"CFNetwork/1.1": "10.2",
"CFNetwork/1.2.1": "10.3.2",
"CFNetwork/1.2.2": "10.3.9",
"CFNetwork/1.2.6": "10.3.9",
"CFNetwork/128": "10.4.0 (PPC)",
"CFNetwork/128": "10.4.1 (PPC)",
"CFNetwork/128.2": "10.4.2 (PPC)",
"CFNetwork/129.10": "10.4.4",
"CFNetwork/129.10": "10.4.5",
"CFNetwork/129.13": "10.4.6",
"CFNetwork/129.16": "10.4.7",
"CFNetwork/129.18": "10.4.8",
"CFNetwork/129.20": "10.4.9",
"CFNetwork/129.21": "10.4.10",
"CFNetwork/129.22": "10.4.11",
"CFNetwork/129.24": "10.4.11",
"CFNetwork/129.5": "10.4.3 (PPC)",
"CFNetwork/129.9": "10.4.4 (PPC)",
"CFNetwork/129.9": "10.4.5 (PPC)",
"CFNetwork/217": "10.5.0",
"CFNetwork/220": "10.5.1",
"CFNetwork/221.5": "10.5.2",
"CFNetwork/330": "10.5.3",
"CFNetwork/330.4": "10.5.4",
"CFNetwork/339.5": "10.5.5",
"CFNetwork/4.0": "10.3",
"CFNetwork/422.11": "10.5.6",
"CFNetwork/422.15.2": "10.5.6",
"CFNetwork/433": "10.5.7",
"CFNetwork/438.12": "10.5.7",
"CFNetwork/438.14": "10.5.8",
"CFNetwork/438.16": "10.5.8",
"CFNetwork/454.11.12": "10.6.7",
"CFNetwork/454.11.5": "10.6.5",
"CFNetwork/454.11.5": "10.6.6",
"CFNetwork/454.12.4": "10.6.8",
"CFNetwork/454.4": "10.6.0",
"CFNetwork/454.5": "10.6.2",
"CFNetwork/454.9.4": "10.6.3",
"CFNetwork/454.9.7": "10.6.4",
"CFNetwork/454.9.8": "10.6.4",
"CFNetwork/459": "iOS 3.1.3",
"CFNetwork/485.10.2": "iOS 4.1",
"CFNetwork/485.12.30": "iOS 4.2.8",
"CFNetwork/485.12.7": "iOS 4.2.1",
"CFNetwork/485.13.9": "iOS 4.3.2",
"CFNetwork/485.13.9": "iOS 4.3.5",
"CFNetwork/485.2": "iOS 4",
"CFNetwork/515.1": "10.7",
"CFNetwork/520.0.13": "10.7.1",
"CFNetwork/520.2.5": "10.7.2",
"CFNetwork/520.2.6": "10.7.2",
"CFNetwork/520.3.2": "10.7.3",
"CFNetwork/520.4.3": "10.7.4",
"CFNetwork/520.5.1": "10.7.5",
"CFNetwork/520.5.3": "10.7.5",
"CFNetwork/548.0.3": "iOS 5",
"CFNetwork/548.0.4": "iOS 5.0.1",
"CFNetwork/548.1.4": "iOS 5.1",
"CFNetwork/561.2": "10.8",
"CFNetwork/561.5.1": "10.8",
"CFNetwork/595": "10.8",
"CFNetwork/596": "10.8",
"CFNetwork/596.0.1": "10.8.0",
"CFNetwork/596.1": "10.8.1",
"CFNetwork/596.2.3": "10.8.2",
"CFNetwork/596.3.3": "10.8.3",
"CFNetwork/596.4.3": "10.8.4",
"CFNetwork/596.5": "10.8.5",
"CFNetwork/596.6": "10.8.5",
"CFNetwork/596.6.2": "10.8.5",
"CFNetwork/602": "iOS 6.0-b3",
"CFNetwork/609": "iOS 6.0",
"CFNetwork/609.1.4": "iOS 6.1.2",
"CFNetwork/609.1.4": "iOS 6.1.3",
"CFNetwork/609.1.4": "iOS 6.1.4",
"CFNetwork/647.3": "10.9",
"CFNetwork/672.0.2": "iOS 7.0",
"CFNetwork/672.0.2": "iOS 7.0.1",
"CFNetwork/672.0.2": "iOS 7.0.2",
"CFNetwork/672.0.8": "iOS 7.0.3",
"CFNetwork/672.0.8": "iOS 7.0.4",
"CFNetwork/672.0.8": "iOS 7.0.5",
"CFNetwork/672.0.8": "iOS 7.0.6",
"CFNetwork/672.1.10": "iOS 7.1-beta",
"CFNetwork/672.1.11": "iOS 7.1-beta",
"CFNetwork/672.1.12": "iOS 7.1-b5",
"CFNetwork/672.1.13": "iOS 7.1",
"CFNetwork/672.1.14": "iOS 7.1.1",
"CFNetwork/672.1.15": "iOS 7.1.2",
"CFNetwork/672.1.9": "iOS 7.1-beta",
"CFNetwork/673.0.2": "10.9",
"CFNetwork/673.0.3": "10.9.0",
"CFNetwork/673.0.3": "10.9.1",
"CFNetwork/673.2.1": "10.9.2",
"CFNetwork/673.3": "10.9.3 beta",
"CFNetwork/673.4": "10.9.3",
"CFNetwork/673.4": "10.9.4",
"CFNetwork/696.0.2": "10.10",
"CFNetwork/699": "10.10",
"CFNetwork/705": "10.10",
"CFNetwork/708.1": "10.10",
"CFNetwork/709.1": "10.10",
"CFNetwork/714": "10.10"
}

Do you have an updated version somewhere? I'm especially interested in iOS versions list.

I'm especially interested in iOS versions list too.

Me too!

Unfortunately, I no longer have access to the logs which allowed me to produce this list, so I can't update it. However, if anyone else would like to take this and add to it, be my guest. Consider the list public domain.