Beginner Reg.Expression Question

[Tatiana Lloret Iglesias]

Hi all!

What regular expression do I need to convert  Version: 1.2.3   to Version:
1.2.4  ?

I.e.  my pattern is Version: number.number.number and from that i need
Version: number.number.number+1
After the : i can have a space or not...

Thanks!
T