diff --git a/build-common/NHibernate.props b/build-common/NHibernate.props
index 5575d231ce4..ebcef0dafce 100644
--- a/build-common/NHibernate.props
+++ b/build-common/NHibernate.props
@@ -5,7 +5,7 @@
5.5
0
- dev
+
9.0
$(NhVersion).$(VersionPatch)
diff --git a/releasenotes.txt b/releasenotes.txt
index f9fbf217f26..58536eebaa0 100644
--- a/releasenotes.txt
+++ b/releasenotes.txt
@@ -1,4 +1,94 @@
-Build 5.4.7
+Build 5.5.0
+=============================
+
+Release notes - NHibernate - Version 5.5.0
+
+ ##### Possible Breaking Changes #####
+ * `Object.Finalize` is no more proxified when the entity base class has a destructor. See #3205.
+ * Default not-found behavior now works correctly on many-to-many Criteria fetch. It now throws
+ ObjectNotFoundException exception for not found records. See #2687.
+
+62 issues were resolved in this release.
+
+** Bug
+
+ * #3413 Downgrade dependency System.Data.SQLite.Core 1.0.118 -> 1.0.117
+ * #3406 Fix orphan removal for detached one-to-one
+ * #3392 Partial fix fetching lazy property after Select in Linq
+ * #3360 Incorrect parameter length for char types in MicrosoftDataSqlClientDriver
+ * #3334 Exception executing HQL query with uncorrelated left joins in subselect
+ * #3327 HqlParser does not correctly negate EXISTS-nodes below an AND/OR
+ * #3325 Cascading orphan delete may not work on versioned entity
+ * #3311 NamedQuery ignores and any other
+ * #3264 Fix collection filter on subclass columns
+ * #3256 Invalid SQL is generated for string Enum used in conditional LINQ
+ * #3205 `Object.Finalize` should not be proxiable
+ * #2687 Use table group joins for many-to-many in Criteria and Entity loaders
+ * #1267 NH-3047 - Lazy=no-proxy ignores join fetch
+
+** New Feature
+
+ * #3242 Linq: add enum Equals and object Equals support
+ * #3165 Add support for Firebird 4
+ * #829 NH-3365 - Support for HasFlag method for enums with Flags attribute applied
+
+** Improvement
+
+ * #3429 Explicit how to use advanced Redis strategies
+ * #3410 Remove redundant collection BeforeAssemble call from query cache
+ * #3398 Do not store mapping field in Configuration
+ * #3396 Get rid of select queries for each ManyToMany not found ignored element in Criteria and lazy loading
+ * #3395 Remove ConstantConverter
+ * #3394 Get rid of select queries for each ManyToMany not found ignored element in hql
+ * #3390 Enable Not node handling in HqlParser.NegateNode
+ * #3384 Improve path rule handling with reserved words in Hql.g
+ * #3377 Move HqlToken.PossibleId to HqlParser.IsPossibleId method and remove castings
+ * #3374 Simplify aggregateDistinctAll rule in Hql.g
+ * #3373 Refactor sequential select related members in AbstractEntityPersister
+ * #3341 Apply fromFragment processing only when required in ProcessDynamicFilterParameters
+ * #3340 SqlString.Trim should return the same instance for not modified string
+ * #3253 Do not throw for unknown type in hql case node
+ * #3230 Add cached boxed boolean values to BooleanType
+ * #3209 Allow custom query loader
+
+** Task
+
+ * #3460 Merge 5.4.7 in master
+ * #3445 Release 5.5.0
+ * #3440 Update NUnit to v3.14.0
+ * #3423 Update actions/checkout action to v4
+ * #3420 Merge 5.4.6 in master
+ * #3411 Remove ISessionFactoryImplementor parameter from TableGroupJoinHelper
+ * #3409 Merge 5.4.5 in master
+ * #3387 Merge 5.4.4 in master
+ * #3379 Remove NHibernate.Example.Web project
+ * #3362 Update dependency NUnit3TestAdapter to v4.5.0
+ * #3361 Update dependency NUnit.Console to v3.16.3
+ * #3353 Migrate renovate config
+ * #3351 Merge 5.4.3 in master
+ * #3284 Update NHibernate.Caches to v5.9.0
+ * #3283 Update dependency NSubstitute to v5
+ * #3280 Add tests for Microsoft.Data.SqlClient driver
+ * #3275 Migrate dev packages to Cloudsmith
+ * #3241 Exclude generated files from Deepsource analisys
+ * #3236 Add MySQL8Dialect and MySQL8InnoDBDialect
+ * #3223 Simplify GitHub Actions Tests DB initialization
+ * #3206 Update actions/setup-dotnet action to v3
+ * #3202 Update dependency Npgsql to v7
+ * #3129 [Security] Update Oracle.ManagedDataAccess
+ * #3122 Update dependency FirebirdSql.Data.FirebirdClient to v9
+ * #3102 Update dependency Microsoft.Data.SqlClient to v3.1.3
+ * #3099 [Security] Update dependency System.Linq.Dynamic.Core to v1.3.3
+ * #3098 Update dependency System.Data.SQLite.Core to v1.0.118
+ * #3092 Update dependency Microsoft.AspNetCore.OData to v7.7.0
+ * #3088 Update NUnit to v3.13.3
+
+** Tests
+
+ * #3412 Revive hql ParsingFixture
+
+
+Build 5.4.7
=============================
Release notes - NHibernate - Version 5.4.7