Update change log

CHANGELOG.md

@@ -10,6 +10,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 - Fully deprecate `DeclareFactoryEntries.h` ([mr !648][])
 
 ### Changed
+- Modernize Registry usage in (Ts)DataSvc ([mr !604][], [issue #5][])
+- Improve Gitlab-CI configuration ([mr !651][], [mr !448][])
 - Implemented a new property for IoComponentMgr to hold search patterns for
   direct I/O input file names ([mr !646][])
 - Allow retrieval of const services, lost with [mr !526][] ([mr !647][])
@@ -18,6 +20,9 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
   ([mr !643][])
 - Use `apply` in `Gaudi::Functional` ([mr !622][])
 
+### Fixed
+Fixed bug in THistSvc introduced with [mr !594][] ([mr !652][])
+
 ### Added
 - [Change log](CHANGELOG.md)
 
@@ -26,12 +31,19 @@ Details about old versions of the project can be found in the
 [ReleaseNotes](ReleaseNotes) folder and in the `release.notes` files in
 [GaudiRelease/doc](GaudiRelease/doc).
 
+[mr !652]: https://gitlab.cern.ch/gaudi/Gaudi/merge_requests/652
+[mr !651]: https://gitlab.cern.ch/gaudi/Gaudi/merge_requests/651
 [mr !648]: https://gitlab.cern.ch/gaudi/Gaudi/merge_requests/648
 [mr !647]: https://gitlab.cern.ch/gaudi/Gaudi/merge_requests/647
 [mr !646]: https://gitlab.cern.ch/gaudi/Gaudi/merge_requests/646
 [mr !645]: https://gitlab.cern.ch/gaudi/Gaudi/merge_requests/645
 [mr !643]: https://gitlab.cern.ch/gaudi/Gaudi/merge_requests/643
 [mr !622]: https://gitlab.cern.ch/gaudi/Gaudi/merge_requests/622
+[mr !604]: https://gitlab.cern.ch/gaudi/Gaudi/merge_requests/604
+[mr !594]: https://gitlab.cern.ch/gaudi/Gaudi/merge_requests/594
 [mr !526]: https://gitlab.cern.ch/gaudi/Gaudi/merge_requests/526
+[mr !448]: https://gitlab.cern.ch/gaudi/Gaudi/merge_requests/448
+
+[issue #5]: https://gitlab.cern.ch/gaudi/Gaudi/issues/5
 
 [Unreleased]: https://gitlab.cern.ch/gaudi/Gaudi/compare/v30r2...master