Update changelog

CHANGELOG.md

@@ -1,14 +1,18 @@
 # Changelog
 
-## [«unknown»](https://github.com/NASA-PDS/pds4-information-model/tree/«unknown») (2022-02-10)
+## [«unknown»](https://github.com/NASA-PDS/pds4-information-model/tree/«unknown») (2022-02-16)
 
 [Full Changelog](https://github.com/NASA-PDS/pds4-information-model/compare/v13.2.0-SNAPSHOT...«unknown»)
 
-**Other closed issues:**
+**Requirements:**
 
-- Stage IMTool for V1.18.0.0 [\#431](https://github.com/NASA-PDS/pds4-information-model/issues/431)
+- CCB-337 - Change data type Modification\_Detail/modification\_date to ASCII\_Date\_Time\_YMD [\#436](https://github.com/NASA-PDS/pds4-information-model/issues/436)
+
+**Improvements:**
 
-## [v13.2.0-SNAPSHOT](https://github.com/NASA-PDS/pds4-information-model/tree/v13.2.0-SNAPSHOT) (2022-02-04)
+- \[namespace-registry\] add new namespace "\<neas\>" [\#421](https://github.com/NASA-PDS/pds4-information-model/issues/421)
+
+## [v13.2.0-SNAPSHOT](https://github.com/NASA-PDS/pds4-information-model/tree/v13.2.0-SNAPSHOT) (2022-02-10)
 
 [Full Changelog](https://github.com/NASA-PDS/pds4-information-model/compare/v13.1.0...v13.2.0-SNAPSHOT)
 
@@ -33,6 +37,10 @@
 - The PDS4 IM Specification Document is not consistent in the ordering of Permissible Values [\#269](https://github.com/NASA-PDS/pds4-information-model/issues/269) [[s.medium](https://github.com/NASA-PDS/pds4-information-model/labels/s.medium)]
 - LDDTool: DocBook generation does not work from any file system location [\#170](https://github.com/NASA-PDS/pds4-information-model/issues/170) [[s.medium](https://github.com/NASA-PDS/pds4-information-model/labels/s.medium)]
 
+**Other closed issues:**
+
+- Stage IMTool for V1.18.0.0 [\#431](https://github.com/NASA-PDS/pds4-information-model/issues/431)
+
 ## [v13.1.0](https://github.com/NASA-PDS/pds4-information-model/tree/v13.1.0) (2021-10-05)
 
 [Full Changelog](https://github.com/NASA-PDS/pds4-information-model/compare/v13.0.2...v13.1.0)