The mythical LaTeX3

When the LaTeX Project team took over maintenance of LaTeX from Leslie Lamport, LaTeX2e was planned as an intermediate release to resolve immediate issues with the then-current LaTeX2.09. The ‘e’ (or properly ε) was meant to indicate a small change from LaTeX2.09, with longer-term plans centred on LaTeX3. As we know, that proved rather hopeful, and we are still using LaTeX2e today: at least,…