See also this Explanation of libguestfs version numbers.
| Rawhide | 1.5.x (currently 1.5.9) |
| Fedora 14 | 1.5.x (currently 1.5.5) |
| Fedora 13 | 1.4.x (currently 1.4.3) + feature backports |
| Fedora 12 | 1.2.x (currently 1.2.11) |
| EPEL 5 | 1.2.x (currently 1.2.11) |
| RHEL 6.0 | 1.2.7 + backported fixes and features needed for V2V |
| RHEL 6.1 | probably rebase to 1.4.x + feature backports (same as Fedora 13) |
| RHEL 5.5 with RHEV-M subscription | 1.2.7 + backported fixes and features needed for V2V |
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