64 bit desktop apps

[Bob Sneidar]

Microsoft suffered for years over backwards compatibility with DOS. MS wanted to move forward with their OS at a quicker pace but there were so many "critical" apps running under DOS that talked directly with the hardware, that no one wanted MS to depricate it. Windows 95 was supposed to be the first version of Windows to break the chain, but had to retain some functionality still. Even Windows 98 was still bound in some ways with DOS. 

The point is, you have the right to expect backwards compatibility... to a point. Where is that point? Well let's see, how long ago did Apple stop suporting 32 bit OS? As far as I am concerned, that is the point beyond which backwards compatibility is gratis. 

Bob S


> On Jun 8, 2017, at 03:04 , Richmond via use-livecode <use-livecode at lists.runrev.com> wrote:
> 
> So, backwards compatibility does not interest you?
> 
> I, for one, run Mac Machines running MacOS 10.4 PPC.
> 
> A lot of these machine are being dumped in poor countries where they can be used
> for good purposes.
> 
> Richmond.
> 
> On 08/06/17 09:19, Mark Waddingham via use-livecode wrote:
>> On 2017-06-07 21:59, Richmond Mathewson via use-livecode wrote:
>>> I disagree as there are plenty of Macs "out there" in the worldthat
>>> run 32-bit systems.
>> 
>> Not that LiveCode supports.
>> 
>>> Far better to have BOTH possibilities checked as default.
>> 
>> Only if there existed a Mac which can run LiveCode but cannot run 64-bit apps - which is the case for LiveCode 9.x as it supports 10.9+.
>> 
>> Indeed it would be far better to have no possibility at all (simpler) - just build for 64-bit since...
>> 
>> 64-bit support has been around since 10.6, at that time there were machines which could run 10.6 which were 32-bit only.
>> 
>> However, all macs which will run 10.7 will run 64-bit apps.
>> 
>> Therefore, if LiveCode only supports 10.7 and above, then LiveCode and any apps you build with it need only be 64-bit.
>> 
>> Warmest Regards,
>> 
>> Mark.
>> 
> 
> 
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