If you own the code you can have as many licence configurations as you like as long as its 100% clear what you are offering and what the rules are.
I dont think you can remove them though without re-releasing the code/sw.
I have seen sometimes for example:
V1.3 Is released under GPL
V1.4 Is released under LGPL
V1.5 Is a commercial licence or a GPL for non-commercial
etc....
I dont like this though it causes too much confusion and is not very attractive to a developer looking for consistancy.
I dont think you can remove them though without re-releasing the code/sw.
I have seen sometimes for example:
V1.3 Is released under GPL
V1.4 Is released under LGPL
V1.5 Is a commercial licence or a GPL for non-commercial
etc....
I dont like this though it causes too much confusion and is not very attractive to a developer looking for consistancy.