[OS X TeX] TeXShop 2.20

Alain Schremmer schremmer.alain at gmail.com
Mon Jan 26 17:56:47 EST 2009

On Jan 26, 2009, at 5:27 PM, Jung-Tsung Shen wrote:

> People out there still using OS 10.4 might be interested to know the
> following explanation from Dick.
> JT
> On 1/26/09, Richard Koch <koch at math.uoregon.edu> wrote:
>> Jung-Tsung,
>>  TeXShop 2.20 will work fine on system 10.4, modulo an important  
>> bug in the
>> PDFKit which Apple fixed in system 10.5. TeXShop ran on 10.4  
>> during the
>> entire "lifetime" of that system, so users managed to exist with  
>> the bug.
>> But now that it is fixed in Leopard ....
>>  The problem is that when you typeset, TeXShop needs to throw away  
>> the data
>> for the old pdf file and load the new one. In system 10.4,  
>> throwing away the
>> old data led to an enormous slowdown of TeXShop. TeXShop has a  
>> work around
>> to trick the system into believing that this old data is still  
>> being used.
>> As a result, the program is fast and displays the new pdf, but  
>> your memory
>> is gradually reduced as you typeset over and over.
>>  TeXShop recognizes when it is running on 10.5, and disables the  
>> workaround;
>> thus on Leopard your memory is not used up.
>>  Dick
> Dick,
>  Thank you very much for the detailed explanation. I have installed  
> the
>  latest version, and it ran smoothly on OS 10.4.11.
>  Let me join others to thank you for the wonderful contributions.

I haven't downloaded it yet but I appreciate the reassurance (10.4.11) 
—as well as the explanation—and, in any case, I wish to join the  
crowd and thank Koch et al for a front end that I have really enjoyed  
from the moment I started the hard LaTreK.

Very, very grateful regards

P. S. Last night, I spent a couple of hours on acquamacs because I am  
looking for an html editor and thought I would first meet acquamacs  
on a turf that I am a bit more familiar with. I was soundly defeated.  
So, yes, Slater is right, sometimes, after all, too much of a good  
thing is not so good.

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