I’d like to cite Steve Hays regarding the Canon, particularly his response to Jay Dyer.

I already did a post on Wisdom.² Let’s now turn the book of Tobit as another test-case for the canonicity of the OT apocrypha. Joseph Fitzmyer has penned the standard commentary on this apocryphal writing. Here’s some of what he has to say about it:

The manuscript transmission of the story of Tobit is unusually complicated and has been rendered even more so by discoveries in the twentieth century…Prior to the discovery of the Dead Sea Scrolls, the text of the Book of Tobit was known only from various ancient translations. The most important of these were the versions in Greek and Latin, but the book was preserved also in ancient Arabic, Armenian, Coptic (Sahidic), Ethiopic, and Syrian translation.³

As for the Greek translation of the Book of Tobit, one has to distinguish three forms known today:

1. Short Recension: It is found mainly in the MSS Vaticanus (B) of the fourth century, Alexandrinus (A) of the fifth century, Venetus (V) of the eighth century, 990 (=P. Oxy. 1594), of the third century, containing Tob 12:14-19, and also in a host of minuscule manuscripts of the ninth and later centuries.
2. Long Recension: It is found in the MS Sinaiticus (S) of the fourth/fifth century, and in the fragmentary eleventh-century minuscule MS 319 (Vatopedi 513, dated AD 1021), which contains this recension for Tob 3:6-6:616 (up to daimoniou toutou). A bit of the Long Recension is preserved also in the sixth-century papyrus MS 910 (=P. Oxy. 1076, containing only Tob 2:2-5,8).
3. Intermediate Recension: It is found in miniscule MSS 44 (Codex Cittaviensis), 106 (Codex Ferrariensis), 107 (Codex Ferriensis, ca. AD 1337).⁴

Question for Dyer: Which edition or MS preserves the authentic text of Tobit? What edition of Tobit represents the official edition of the Orthodox church? Which edition is the canonical version?⁵

https://triablogue.blogspot.com/2008/02/poppin-jay-on-canon.html