diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7726cadb9..48dc35034 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,14 @@
 Release Notes
 ====
 
+# 04-20-2024
+<a href="https://www.nuget.org/packages/dotnext.net.cluster/5.4.0">DotNext.Net.Cluster 5.4.0</a>
+* Changed binary file format for WAL for more efficient I/O. A new format is incompatible with all previous versions. To enable legacy format, set `PersistentState.Options.UseLegacyBinaryFormat` property to **true**
+* Introduced a new experimental binary format for WAL based on sparse files. Can be enabled with `PersistentState.Options.MaxLogEntrySize` property
+
+<a href="https://www.nuget.org/packages/dotnext.aspnetcore.cluster/5.4.0">DotNext.AspNetCore.Cluster 5.4.0</a>
+* Updated dependencies
+
 # 03-20-2024
 <a href="https://www.nuget.org/packages/dotnext/5.3.1">DotNext 5.3.1</a>
 * Provided support of thread-local storage for `StreamSource.AsSharedStream`
diff --git a/README.md b/README.md
index 7f30e49be..af1e6f565 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ All these things are implemented in 100% managed code on top of existing .NET AP
 * [NuGet Packages](https://www.nuget.org/profiles/rvsakno)
 
 # What's new
-Release Date: 04-18-2024
+Release Date: 04-20-2024
 
 <a href="https://www.nuget.org/packages/dotnext.net.cluster/5.4.0">DotNext.Net.Cluster 5.4.0</a>
 * Changed binary file format for WAL for more efficient I/O. A new format is incompatible with all previous versions. To enable legacy format, set `PersistentState.Options.UseLegacyBinaryFormat` property to **true**