Dr Blayney made thousands of changes to the text of 1611. In vocabulary he incorporated amendments from another version from 1743, for example, fourscore changed to eightieth, neesed to sneezed, and the archaic crudled to curdled. In grammar he changed, among other things, number, so that ‘the names of other gods’ became ‘the name of other gods’; and tenses, so ‘he calleth unto him the twelve and began’ changed to ‘he called unto him the twelve, and began’. There were changes in spelling, in punctuation, and in the choice of words to italicise (which had been intended to indicate words not literally present in the original languages).

A highly documented paragraph in the Wikipedia entry on the King James Version says the following:

By the mid-18th century the wide variation in the various modernized printed texts of the Authorized Version, combined with the notorious accumulation of misprints, had reached the proportion of a scandal, and the Universities of Oxford and Cambridge both sought to produce an updated standard text. First of the two was the Cambridge edition of 1760, the culmination of 20 years’ work by Francis Sawyer Parris, who died in May of that year. This 1760 edition was reprinted without change in 1762 and in John Baskerville’s fine folio edition of 1763.  This was effectively superseded by the 1769 Oxford edition, edited by Benjamin Blayney, though with comparatively few changes from Parris’s edition; but which became the Oxford standard text, and is reproduced almost unchanged in most current printings. Parris and Blayney sought consistently to remove those elements of the 1611 and subsequent editions that they believed were due to the vagaries of printers, while incorporating most of the revised readings of the Cambridge editions of 1629 and 1638, and each also introducing a few improved readings of their own. They undertook the mammoth task of standardizing the wide variation in punctuation and spelling of the original, making many thousands of minor changes to the text. In addition, Blayney and Parris thoroughly revised and greatly extended the italicization of “supplied” words not found in the original languages by cross-checking against the presumed source texts. . . . Altogether, the standardization of spelling and punctuation caused Blayney’s 1769 text to differ from the 1611 text in around 24,000 places.

With all of the above in mind, why hasn’t the KJV been updated like some call for?  It might seem to follow along a pattern already set for the King James Version.  Some today criticize King James Version and Textus Receptus proponents for not giving the King James Version an update to eliminate obsolete or archaic words.The changes occurring in the past updates or editions of the original King James Version did not retranslate the Hebrew Masoretic text of the Old Testament or the Textus Receptus of the New Testament.  They are still the King James Translation.  The Wikipedia article provided a comparison between the 1611 and the 1769 for 1 Corinthians 13:1-3:

[1611] 1. Though I speake with the tongues of men & of Angels, and haue not charity, I am become as sounding brasse or a tinkling cymbal. 2 And though I haue the gift of prophesie, and vnderstand all mysteries and all knowledge: and though I haue all faith, so that I could remooue mountaines, and haue no charitie, I am nothing. 3 And though I bestowe all my goods to feede the poore, and though I giue my body to bee burned, and haue not charitie, it profiteth me nothing.

[1769] 1. Though I speak with the tongues of men and of angels, and have not charity, I am become as sounding brass, or a tinkling cymbal. 2 And though I have the gift of prophecy, and understand all mysteries, and all knowledge; and though I have all faith, so that I could remove mountains, and have not charity, I am nothing. 3 And though I bestow all my goods to feed the poor, and though I give my body to be burned, and have not charity, it profiteth me nothing.

[NASV] 1 If I speak in the tongues of men or of angels, but do not have love, I am only a resounding gong or a clanging cymbal. 2 If I have the gift of prophecy and can fathom all mysteries and all knowledge, and if I have a faith that can move mountains, but do not have love, I am nothing. 3 If I give all I possess to the poor and give over my body to hardship that I may boast, but do not have love, I gain nothing.

None of the four editions proceeding from the 1611 King James Versions read like a new translation or an update in the translation.  They didn’t do that.  The updates or editions of the King James Version are not a new translation.  They don’t look anything like a new translation.Would another update of obsolete or archaic words in the 1769 Blayney edition represent the spirit of the previous editions of King James Version?  My honest assessment is that it wouldn’t.  Critics, who don’t prefer the KJV, want something more than a new edition.I have not read an official explanation for why no continued updates to the King James Version.  No authorized figure said, “This is our last update.”  I think that they stopped in 1769 because they were done.  They had done enough.  No one was motivated to update again, because the 1769 Blayney edition accomplished what people wanted at the time.  It hasn’t been done again, because no one agreed it was significant to do.Men like Mark Ward and others criticize people such as myself and Thomas Ross for not endeavoring to update the King James Version.  They see our lack of support for an update as a sign that we really, actually believe the preservation of scripture occurred in the English translation.  If I did, however, I would advocate for foreign translations from the English King James Version. I don’t. I support foreign translations from the Hebrew and Greek original language text.  That doesn’t sound like someone who believes preservation of scripture in the English translation.Previous to the King James Version, men made several translations of the English Bible from the original Hebrew and Greek Testaments.  The momentum for translation changed after the completion of the KJV.  Churches accepted the King James Version.  Updates didn’t continue after 1769.  Churches were satisfied with the updates.The King James Version was changed after 1611.  The concept of an update is not foreign to the King James Version.  Changes occurred.  Why not further updates to the King James Version?  To be an update, what would need to happen?  The answer to this second question also explains why it hasn’t happened and probably won’t.

Despite the “false friends” of Mark Ward, the existence of words obsolete and archaic to today’s English reader, the Blayney Edition of the King James Version is good.  It is a good translation of the preserved original language text.  True churches accepted it.  It has had a supernatural impact over the centuries.  It is still causes a great effect on the souls of men.  The Blayney Edition of the KJV is proven.Most people still read the King James Version after all these years.  Almost three times the people read the King James Version than read any other single version of the English Bible according to Statista.  A study published in 2014 by The Center for the Study of Religion and American Culture at Indiana University and Purdue University found that 55% of Americans read the King James Version.  Next was the NIV at 19%.

2.    Change Is Worse Than Possible Improvements

3.    King James Version Churches Don’t Want the Update

4.    An Update Is Far From a Priority

TO BE AN UPDATE, WHAT WOULD NEED TO HAPPEN?

1.    King James Version Churches Would Want an Update

A successful update of the KJV would arise from more than a desire of one church.  A large majority of the King James Version churches would want it.  If 75% of those churches called for it, they might accomplish it.  A poll of those churches, I’m guessing, would receive less than 10% desire for an update.The Holy Spirit works equally in all true believers.  Faith is “like precious faith” (2 Peter 1:1).  That same Spirit and that same faith will show up in more than one church.  Scripture would give common basis for necessary change.

Update would so motivate KJV churches that they unify to do so.

If the KJV churches want an update, they would gather the men who could accomplish this task.  Those men would stop whatever else they were doing because this was more important.  With me it would take attention off evangelism, discipleship, the gospel, preaching, apostasy, sanctification, and the church itself.  I’m sure that’s the same for other men.  They don’t want that.

After finishing the update, the churches would still need to show approval. They would want the updated translation.  Maybe that would occur if the first three on this list occurred.  We’re not close to those and so many other things are more important, I don’t see those happening.  Most KJV churches would likely say that on the translation issue, the departure from the KJV is a bigger and more serious priority than the updating of the KJV.

KJV churches do not want or use the new translations completed by individual churches and men from the same text as the KJV.  They find very little acceptance.  Why?  KJV churches don’t want them.  They don’t like them.If KJV churches represent New Testament Christianity, and they don’t want an update of the KJV or a new translation of the underlying text, then New Testament Christianity doesn’t want that.  If they are not New Testament Christianity, then that’s the bigger issue.  I believe that among the KJV churches is New Testament Christianity.  Only among those is belief in biblical doctrine of preservation of scripture.