Version number 1.7.3

[eluser]GreGre[/eluser]
This morning CI 1.7.3 was released as stated here
http://codeigniter.com/news/codeigniter_1.7.3_released/
However the CI_VERSION still states 1.7.2
is there a reason for this or was it just forgotten?
If there is no reason, I will update it since this is my way to track which version I have on which server so thank you for your answer.

[eluser]Mat-Moo[/eluser]
Also the upgrade page http://ellislab.com/codeigniter/user-gui...e_173.html has a title 171->172, small things, but things that shouldn't be missed