Am 2014-06-17 23:38, schrieb Ceki Gülcü:
Hello everyone,
At present time, %d{ISO8601} is equivalent to writing %d{"yyyy-MM-dd HH:mm:ss,SSS"}. However, to match the ISO8601 standard the output should be that of %d{"yyyy-MM-dd'T'HH:mm:ss,SSS"}. Note the 'T' in the middle.
On the other hand, there is also a necessity to maintain backward compatibility for log parsers that rely on the current albeit incorrect format.
That argument does count "maintain backward compatibility" because Logback broke it already several times in a patch version: 1.1.2: Removed deprecated constructors in SocketAppender and related classes. 1.0.7: Groovy and Janino upgrade 1.0.2: By default PatternLayout will now output its pattern at the top of log files and so forth, so it is a lousy argument. Michael