diff --git a/ChangeLog.txt b/ChangeLog.txt
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
------------------------------------------------------------------------
NOTE: This file records the changes made after the release of the stable
-version fits2jpeg-1.0
+version fits2jpeg-1.0
------------------------------------------------------------------------
+
+2.1 Release
+-----------
+
+ 1. Fixed a segfault on blank/zero images
+
+
+2.0 Release
+-----------
+
+ 1. Merged scale & operations to single flag
+ v1.0 had normalize/equalize handled by "-e" flag and rest of
+ image operations by "-s" flag. Both are merged into "-s" in
+ this release.
+
+ 2. New option to clip image min/max
+ You can limit the pixel-values in output image using the flag
+ "-r". For eg: -r 10:300 to generate jpegs with pixel values in
+ the range 10 to 300.
+
+ 3. New option to negate image option
+ A negative image can be generated using "-n" flag.
+
+ 4. New option to resize image
+ zoom or shrink output image by "-z <zoomfact>".
+
+ 5. New option to choose jpeg quality factor
+ You can choose the jpeg quality factor by "-q <quality>"
+ Quality factor was fixed at 100 in previous release.
+
+ 6. New option to specify output directory for saving jpeg images
+ Output location can be specified by "-d </path/to/folder>"
+ If the target directory does not exist, the whole tree will be
+ created.