James Rieger, ed., first new edition of 1818 in 141

  years :   inline collation of "Thomas" w/ 1818,

  1831 variants in endnotes

Stuart Curran and Jack Lynch: PA Electronic Edition (PAEE) , collation of 1818 and 1831: HTML

Nora Crook crit. ed of 1818,  variants of "Thomas",   1823, and 1831 in endnotes (P&C MWS collected works)

Romantic Circles TEI conversion of PAEE ; separates the texts of 1818 and 1831; collation via Juxta

Charles Robinson, The Frankenstein Notebooks (Garland): print facsimile of 1816 ms drafts

Shelley-Godwin Archive publishes diplomatic edition of 1816 ms drafts

Frankenstein Variorum Project begins 

assembly/proof-correcting of PAEE files; OCR/proof-correcting 1823; "bridge" TEI edition of S-GA notebook files; automated collation; incorporating "Thomas" copy text. Collation project completed in 2023, Variorum viewer officially launches in 2024.