The simple fact that there is an election going on in Brazil indicates that the start of DST will probably be postponed to after the second round.
We will know for sure in no more than 2 weeks though so I recomend doing nothing until then so we can make only one change and only if it is really necessary.
Rodrigo Severo
It is election time in Brazil again, and since it seems that they still
cannot handle a time change in the middle of two rounds of election,
they are postponing this year's start date to the weekend after the
election, 2006-11-05.
It appears that the decree is still not published, but that this change
is very likely to happen.
Source:
http://jc.uol.com.br/tvjornal/2006/09/18/not_107666.php (In Portuguese)
Auto-translated:
It is practically certain that the schedule of summer of this year will
start from the zero hour of day 5 of November, in the first turn as
weekend after of the elections. Sources of the government had said that
already they are finishing the details of the decree that will establish
the change in the clocks.
Best regards,
Steffen Thorsen