Hendrickson's reprint of the English language version of Keil & Delitzsch's classic commentary on the entire Old Testament, first published in 1866. While the content is unchanged, it's format has been updated, and some errors from the original have been corrected. Formatting and style changes made by Hendrickson:
Proofreading of all Greek and Hebrew words
Modernization of abbreviations
Original Arabic words transliterated into English
Biblical references changed from Roman numerals into Arabic numerals
A custom-designed font that is much more readable than the original
Standardized formatting for all volumes (the original had different formats in each volume)
Movement of the commentary on Ezra, Nehemiah and Esther from volume three to volume four (to make each volume a more consistent length)
Rewriting of long paragraphs into shorter, more readable ones
Continuous pagination in each volume, with a separate table of contents for each volume
Overview of Keil & Delitzsch: Commentary on the Old Testament:
Theologically moderate/conservative
Technical (knowledge of Hebrew and Greek necessary)