Likewise, serial commas are falling to the wayside.
Jim, me, harry, sally.
Jim and sally and harry, and me. Seriously. At least in journalism.
Semicolons:
A semicolon is used when a more significant break in conntinuity then that indicated by a comma is called for but a knew sentence is not desired. Some authorities say that a semicolon is now rare and should be avoided. If a comma and conjunction won't do the job in most cases, it is probably wise to use a period and start a new sentence.
But, I give an example.
A semicolon is used in compound sentences between independant clauses not joined by connectives, particularly if they are extended or have commas within them.
The weather was hot Tuesday; however, even though the sky was cloudy, no rain seemed on the way to give relief.
John, the third boy to get his award, give it to his mother, who was standing beside him; she broke into tears.
It's obvious that either sentence could be made into two separate sentences.
Sentences with a semicolon are independant clauses that in some way relate to the first part,or last part of the sentence.
See you all after vacation. You have a one week sabatical from my ramblings.
Ken