GNUPG symmetric encryption compatibility question

[Egon]

Hi All,

If I symmetric encrypt many files with the recent version of GNUPG 
1.4.19, will I able to decrypt these files with the modern versions of 
GPG in the far future?
Does GNUPG 1.4.19 has a known compatibility problem with this operation 
even when I do not want to use the default cipher and compression 
algorithms and I want to ASCII-armor some files?
I do not want to use other features, only encrypt files...

Will I able to decrypt with the actual recent modern version in the 
future when GNUPG 1.4.x will disappear?

Best Regards, Egon