Hi, On 16 April 2015 at 16:08, Herbert Valerio Riedel wrote:

Being historically a tape-originating archive format, `tar` does support such destructive updates as a standard-feature by appended content.

Thanks, I understand this. My question was about whether cabal-install supports this feature of tar (turns out, it does).

Using this, we can actually have *all* historic .cabal revisions in the 00-index.tar file as hidden entries.

I don't think we do this right now, though.