Daylight Savings Updates

Hi,

Please advise whether it is necessary for us to apply a later version of Postgres in preparation for the new daylight savings times coming in to effect in New Zealand at the end of September?

We are running PG 8.1.4 and 8.1.6.

FAQ's indicate that our one remaining system on 7.1.4 will use the operating system daylight savings settings, but do we have to apply anything to our 8.1 systems, why, and what is involved in doing so please?

Adrian