Read the CHANGES section of the manual.
Make sure you use only ISAM type files.
3.23 uses MYISAM by default.
Tim Thorburn wrote:
> Is MySQL backwards compatible? On my main machine I'm running MySQL
> 3.23.36 and our hosting company is using MySQL 3.22.32 - the database I've
> created is a simple listing of local businesses with contact information,
> so I don't believe there would be any issues of my using features that
> would not have been present in the earlier version.
> Any thoughts? We'll be setting up most of the database information
> tomorrow afternoon - as always, rushed to the last minute.