THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
...
Furthermore, the JsonDeserializer will now default floating point deserialization to BigDecimal to avoid losing precision. This may impact performance when deserializing doubles - a JMH microbenchmark on my local MBP, this estimated about 3x degradation for deserializing doublesJSON floating points.
Compatibility, Deprecation, and Migration Plan
...