docs: Add Druid 28 release notes and upgrade notes

website/.spelling

@@ -42,6 +42,7 @@ BCP
 Base64
 Base64-encoded
 ByteBuffer
+booleans
 bottlenecked
 concat
 CIDR
@@ -83,9 +84,11 @@ DynamicConfigProvider
 EC2
 EC2ContainerCredentialsProviderWrapper
 ECS
+EOF
 EMR
 EMRFS
 ETL
+ElastiCache
 Elasticsearch
 Enums
 FirehoseFactory
@@ -112,6 +115,7 @@ IAM
 IANA
 IcebergFilter
 IcebergInputSource
+IE11
 IETF
 IP
 IPv4
@@ -131,6 +135,7 @@ Integer.MAX_VALUE
 ioConfig
 Istio
 JBOD
+JDBI
 JDBC
 JDK
 JDK7
@@ -770,12 +775,20 @@ DS_QUANTILES_SKETCH
 APPROX_QUANTILE_FIXED_BUCKETS
 # File specific overrides
 100x
+2.x
+28.x
+9.4.51.v20230217
+9.4.53.v20231009
+4.1.94.Final
+4.1.100.Final
 _common
 appender
 appenders
+Dependabot
 druid-hdfs-storage
 druid-s3-extensions
 druid.sql.planner.maxNumericInFilters
+M7
 Minio
 multi-server
 BasicDataSource
@@ -790,12 +803,15 @@ allowAll
 authenticatorChain
 defaultUser
 inputSegmentSizeBytes
+InsufficientResourceException
+JsonConfigurator
 skipOffsetFromLatest
 brokerService
 c3.2xlarge
 defaultManualBrokerService
 maxPriority
 minPriority
+ResultSet
 runtime.properties
 timeBoundary
 0x0
@@ -805,8 +821,20 @@ timeBoundary
 Bieber
 IndexTask-based
 Ke
+KIP-297
 datasource_intervalStart_intervalEnd_version_partitionNum
+NPE
+NUMBER_FEATURES
+NUMBER_OF_CONTRIBUTORS
+PreparedStatement
+pre-upgrade
 partitionNum
+QueryCapacityExceededException
+QueryTimeoutException
+QueryUnsupportedException
+SqlParseException
+UTF-8-encoded
+ValidationException
 v9
 3.x
 8u92

website/sidebars.json

@@ -277,6 +277,10 @@
     ],
     "Misc": [
       "misc/papers-and-talks"
+    ],
+    "Release info": [
+      "release-info/release-notes",
+      "release-info/upgrade-notes"
     ]
-      }
+  }
 }