Gee libgee versioning?

[Peter Oliver <mail gnome org mavit org uk>]

My Fedora 19 system includes the following packages.  I'll admit to being rather confused by all the 
different version numbers.  Can anyone shed any light on how libgee-0.6.8 becomes gee-1.0, but libgee-0.10.1 
becomes gee-0.8?  Is gee-0.8 newer/better than gee-1.0?

Name        : libgee-devel
Version     : 0.10.1
Release     : 1.fc19
Architecture: x86_64
Install Date: Fri 12 Jul 2013 00:30:42 BST
Group       : Development/Libraries
Size        : 452902
License     : LGPLv2+
Signature   : RSA/SHA256, Mon 15 Apr 2013 16:16:22 BST, Key ID 07477e65fb4b18e6
Source RPM  : libgee-0.10.1-1.fc19.src.rpm
Build Date  : Mon 15 Apr 2013 04:25:57 BST
Build Host  : buildvm-25.phx2.fedoraproject.org
Relocations : (not relocatable)
Packager    : Fedora Project
Vendor      : Fedora Project
URL         : http://live.gnome.org/Libgee
Summary     : Development files for libgee
Description :
The libgee-devel package contains libraries and header files for
developing applications that use libgee.
/usr/include/gee-0.8
/usr/include/gee-0.8/gee.h
/usr/lib64/libgee-0.8.so
/usr/lib64/pkgconfig/gee-0.8.pc
/usr/share/gir-1.0
/usr/share/gir-1.0/Gee-0.8.gir
/usr/share/vala
/usr/share/vala/vapi
/usr/share/vala/vapi/gee-0.8.vapi

Name        : libgee06-devel
Version     : 0.6.8
Release     : 1.fc19
Architecture: x86_64
Install Date: Sun 14 Jul 2013 19:24:07 BST
Group       : Development/Libraries
Size        : 261790
License     : LGPLv2+
Signature   : RSA/SHA256, Wed 27 Mar 2013 13:17:19 GMT, Key ID 07477e65fb4b18e6
Source RPM  : libgee06-0.6.8-1.fc19.src.rpm
Build Date  : Wed 27 Mar 2013 11:37:53 GMT
Build Host  : buildvm-01.phx2.fedoraproject.org
Relocations : (not relocatable)
Packager    : Fedora Project
Vendor      : Fedora Project
URL         : http://live.gnome.org/Libgee
Summary     : Development files for libgee06
Description :
The libgee06-devel package contains libraries and header files for
developing applications that use libgee06.
/usr/include/gee-1.0
/usr/include/gee-1.0/gee.h
/usr/lib64/libgee.so
/usr/lib64/pkgconfig/gee-1.0.pc
/usr/share/gir-1.0
/usr/share/gir-1.0/Gee-1.0.gir
/usr/share/vala
/usr/share/vala/vapi
/usr/share/vala/vapi/gee-1.0.vapi

--
Peter Oliver