I plan to change my cloud infrastructure, which will result in a new static IP address.
Could you let me know how far in advance I should update the new static IP before the market opens? Does the change take effect immediately after updating?
Also, is it possible to update the static IP during market hours, or should it only be done before the market opens?
You can update the static IP address from the Profile section of the Developer Console. Please note that only one static IP change is allowed per calendar week. Once updated, the new static IP takes effect immediately, including during market hours.
so it means I can keep changing the static IP every eighth day (instead of week, just for safe)