Re: Differences in ProDOS versions

[bkjohns1@news.pittstate.edu (Bryan K. Johnson)]

Nathan Mates (nathan@visi.com) wrote:
: In article <32124F97.7E18@baldcom.net>,
: Edhel Iaur  <drsmooth@baldcom.net> wrote:
: >Just what is the difference between all those versions of ProDOS?  The 
: >only one I can find is the addition of AppleTalk stuff, the improvement 
: >in the "BYE" code, and the way versions 2+ require enhanced machines.

: >BTW, in these days of Apple not caring much about the //, why did Apple 
: >bother to update ProDOS to version 2.0.3?

:    Each release of GS/OS also seemed to have an associated ProDOS
: 8 update. No, I haven't done any file comparing to see if they
: changed anything other than the version number.

: Nathan Mates
: --
: <*> Nathan Mates http://www.visi.com/~nathan/      <*>
: # What are the facts? Again and again and again-- what are the _facts_?
: # Shun wishful thinking, avoid opinion, care not what the neighbors
: # think-- what are the facts, and to how many decimal places?  -R.A. Heinlein

ProDOS is updated so that the dates will change correctly, because when
a certain year is reached the date reverts back to 1985 or something
like that.  So you had to patch ProDOS or get a later version so it
would keep the year correctly.  I don't know much of the details on how
it calculates the date other than it uses the day and month to figure
out the year.