I haven't played Minecraft since 2011, and I come back and now the save format has changed.
I've read that beta 1.3 will automatically convert my old world files into the new format, or at least to a newer format.
BUT!
I used the new launcher's option of playing in beta 1.3, but it still only recognized the new save files. AND I use MCNastalgia and Downgrader and tried MCEdit too, but none of these actually let me load old save files. I need the REAL beta 1.3 to convert my files, not just a superficial version with similar-looking gameplay.
I've read that beta 1.3 will automatically convert my old world files into the new format, or at least to a newer format.
BUT!
I used the new launcher's option of playing in beta 1.3, but it still only recognized the new save files. AND I use MCNastalgia and Downgrader and tried MCEdit too, but none of these actually let me load old save files. I need the REAL beta 1.3 to convert my files, not just a superficial version with similar-looking gameplay.
Can anyone explain what I am doing wrong?
You need the version that is labelled "old-beta b1.3_01" This version can convert Alpha format to McRegion format worlds.