Maximum payload size

Is the following information found here https://github.com/snowplow/snowplow/wiki/1-General-parameters-for-the-Javascript-tracker#2218-configuring-the-maximum-payload-size-in-bytes still valid?

“The Clojure Collector can’t handle requests bigger than 64kB. The Scala Stream Collector cannot process requests bigger than 50kB because that is the maximum size of a Kinesis record.”

Looks like Kinesis data streams support upto 1 MB payload size now? https://docs.aws.amazon.com/streams/latest/dev/service-sizes-and-limits.html