The primary purpose of debug trace is to help in the development of PHP code plugins or themes..
The primary purpose of action trace is to help you understand the sequence of events in the server..
Put the in your wp-config php file define define define define if ) { require once }.
With the addition of Ad hoc tracing and the fact that oik-bwtrace doesn't affect what's displayed on the front end oik-bwtrace is my GO TO plugin for problem determination finding out what's going on..
Added $level parameter to the bw trace2 and bw backtrace APIs.
Changed Some bw trace2 and bw backtrace calls to make use of the capability.
Deprecated Moved more deprecated functions and logic related to the action tracing and logging to includes deprecated php.
When true it loads the action hook and filter counting logic and 'activates MU of the plugin.
Added records the trace file name in the summary log file.
Changed Documented the in the bwtrace.vt.mmdd log file where vt is abbreviation of value and text. 1.22.
Read more