Update Changelog with 1.6.3 release (#4071)

* Update Changelog with 1.6.3 release

Signed-off-by: Agustín Martínez Fayó <[email protected]>

Author: amartinezfayo

CHANGELOG.md

@@ -1,5 +1,23 @@
 # Changelog
 
+## [1.6.3] - 2023-04-12
+
+### Added
+
+- Entry API responses now include the `created_at` field (#3975)
+- `spire-server agent` CLI commands and Agent APIs now show if agents can be re-attested and supports `by_can_reattest` filtering (#3880)
+- Entry API along with `spire-server entry create`, `spire-server entry show` and `spire-server entry update` CLI commands now support hint information, allowing hinting to workloads the intended use of the SVID (#3926, #3787)
+
+### Fixed
+
+- The `vault` UpstreamAuthority plugin to properly set the URI SAN (#3971)
+- Node selector data related to nodes is now cleaned when deleting a node (#3873)
+- Clean stale node selector data from previously deleted nodes (#3941)
+- Regression causing a failure to parse JSON formatted and verbose HCL configuration for plugins (#3939, #3999)
+- Regression where some workloads with active FetchX509SVID streams were not notified when an entry is removed (#3923)
+- The federated bundle updater now properly logs the trust domain name (#3927)
+- Regression causing X509 CAs minted by an UpstreamAuthority plugin to be rejected if they did not have a URI SAN (#3997)
+
 ## [1.6.2] - 2023-04-04
 
 ### Security