The Postmark Bounce API has been updated, allowing users to retrieve specific bounces without first filtering by other criteria. Previously, users had to query using a filter similar to the `emailfilter` parameter, which returned a list of bounces and then required the user to sort through it to find the desired bounce. With the new update, users can use the `messageID` field on the Bounce API to retrieve a specific bounce directly, saving time and effort. This change will likely benefit many end-users by speeding up their bounce querying process.