Merge pull request #156 from ojustino/finalize-changelog-1.3.0

Prepare changelog for release v1.3.0

Author: ojustino

CHANGES.rst

@@ -1,4 +1,17 @@
-1.3.0 (unreleased)
+1.4.0 (unreleased)
+------------------
+
+New Features
+^^^^^^^^^^^^
+
+API Changes
+^^^^^^^^^^^
+
+Bug Fixes
+^^^^^^^^^
+
+
+1.3.0 (2022-12-05)
 ------------------
 
 New Features
@@ -24,6 +37,8 @@ API Changes
 - All operations' ``image`` attributes are now coerced Spectrum1D
   objects [#144, #154]
 
+- HorneExtract can now handle non-flat traces [#148]
+
 Bug Fixes
 ^^^^^^^^^