I discovered a bug with Lucee 6+ parsing of string dates: https://luceeserver.atlassian.net/browse/LDEV-5566 In a nutshell, when parsing a timestamp with trailing zeros in the milliseconds, the zeros are being dropped, so a string like

2016-04-11 18:30:06.083

gets converted to

2016-04-11 18:30:06.830

. I suspect this could be affecting a lot of code that's deserializing JSON:

ds = deserializeJSON('["2016-04-11 18:30:06.083"]');

writeDump(dateTimeFormat(ds[1], "yyyy-mm-dd HH:nn:ss.lll"));

This will produce

2016-04-11 18:30:06.830

instead of

2016-04-11 18:30:06.083

.