X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=CHANGES;h=0f7b77a45be951b9b869d1d3cfaaf64358d0315b;hp=ff61ff438398d8bee6a070646f7edc76d565a5a9;hb=6bc62a620e715f7580651ca932eab052aa527886;hpb=ac4033d658e4dc210ed4552b88069b57532ba3d7;ds=sidebyside

diff --git a/CHANGES b/CHANGES
index ff61ff4383..0f7b77a45b 100644
--- a/CHANGES
+++ b/CHANGES
@@ -9,6 +9,20 @@
 
  Changes between 1.1.1 and 3.0.0 [xx XXX xxxx]
 
+  *) Added a new generic trace API which provides support for enabling
+     instrumentation through trace output. This feature is mainly intended
+     as an aid for developers and is disabled by default. To utilize it,
+     OpenSSL needs to be configured with the `enable-trace` option.
+
+     If the tracing API is enabled, the application can activate trace output
+     by registering BIOs as trace channels for a number of tracing and debugging
+     categories.
+
+     The 'openssl' application has been expanded to enable any of the types
+     available via environment variables defined by the user, and serves as
+     one possible example on how to use this functionality.
+     [Richard Levitte & Matthias St. Pierre]
+
   *) Added build tests for C++.  These are generated files that only do one
      thing, to include one public OpenSSL head file each.  This tests that
      the public header files can be usefully included in a C++ application.