Update CHANGELOG.md

Author: MenoData

CHANGELOG.md

@@ -6,6 +6,8 @@
 - Add element support for historic day-of-year [#456]
 
 ### Fixed
+- TimezoneRepositoryProviderSPI throws NPE [#464]
+- Refine localized calendar history in Europe [#461]
 - PlainTime.toString() does not display fraction of second as per spec [#465]
 - Make Timezone.ofSystem() more robust against weird zone ids. [#463]
 - Don't permit negative years for any historic era [#458]