"John" <Jo**@nospam.infovis.co.uk> wrote in message
news:xu********************@pipex.net...
I am totally new to MySQL. Just wanted to know what are the major
differences between version 3.23 and version 4.0.26?
You should read the change logs starting on this page:
http://dev.mysql.com/doc/refman/4.1/en/news.html
That is, read "D.2 Changes in release 4.0.x" for the summary, and the
sub-sections for detailed information of changes per 4.0.x point-release.
Also would apps written for 4.0.26 break on 3.23?
In most cases MySQL 4.0 is backward-compatible with 3.23 at the application
level. I have had the experience of upgrading MySQL from 3.23 to 4.0,
without requiring any changes to the Perl web application on that server.
However, no one on a newsgroup can answer that question definitively with
regard to _your_ application (or any particular application). We don't know
what your application does, or which features of MySQL it employs.
Regards,
Bill K.