hz, pdftex-1.20b and i-installer

Hi Gerben and all,

I was wondering about the bad hz results with pdftex 1.2a (working with 
ConTeXt).
Then, yesterday I found this promising post on pdftex-list 
(pdftex-WUdSmCIlby8@xxxxxxxxxxxxxxxx):

The Thanh Han <hanthethanh-YSGFQ8SKJZVDPfheJLI6IQ@xxxxxxxxxxxxxxxx> wrote:

> Hi,
> 
> if you have decided to upgrade pdftex, then my suggestion is to upgrade
> to pdftex-1.20b-beta2, which is available at pdftex.sarovar.org/src
> 
> This version fixes most of the pending problems and I plan to leave it
> untouched for a while, unless some bugs are found. 1.20a has some
> serious problems with the hz extensions.
> 
> Thanh


Is it possible that there might be an i-installer update to pdftex-1.20b-beta2 ?
If not, can you give an adive on how to update it manually on an existing gw 
tetex system?

Steffen
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