Added an API retrieving fields of a virtual corpus.

Change-Id: I577e29bae1b3112ccb16a2d6b2c65d06695198c0
diff --git a/core/Changes b/core/Changes
index 056aed2..0662426 100644
--- a/core/Changes
+++ b/core/Changes
@@ -12,6 +12,8 @@
  - Bumped spring.version from 5.3.13 to 5.3.14
 2022-01-25
  - Added show-tokens option to the search API.
+2022-01-31
+ - Added an API retrieving fields of a virtual corpus.
 
 # version 0.64