diff --git a/doc/release_notes.rst b/doc/release_notes.rst
index 49d562e..95dd7b0 100644
--- a/doc/release_notes.rst
+++ b/doc/release_notes.rst
@@ -6,6 +6,7 @@ Release notes
 .. toctree::
    :maxdepth: 1
 
+   releases/0.2.21.rst
    releases/0.2.20.rst
    releases/0.2.19.rst
    releases/0.2.18.rst
diff --git a/doc/releases/0.2.20.rst b/doc/releases/0.2.20.rst
index 3041e79..f695a4a 100644
--- a/doc/releases/0.2.20.rst
+++ b/doc/releases/0.2.20.rst
@@ -1,4 +1,4 @@
-probeinterface 0.2.19
+probeinterface 0.2.20
 ---------------------
 
 Dec, 11th 2023
diff --git a/doc/releases/0.2.21.rst b/doc/releases/0.2.21.rst
new file mode 100644
index 0000000..aa03b02
--- /dev/null
+++ b/doc/releases/0.2.21.rst
@@ -0,0 +1,11 @@
+probeinterface 0.2.21
+---------------------
+
+Feb, 1st 2024
+
+
+Features
+^^^^^^^^
+
+* Add equality dunder method and test to Probe object (#248)
+* Add save to zarr method to Probe object (#250)
diff --git a/pyproject.toml b/pyproject.toml
index cf40085..0488078 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "probeinterface"
-version = "0.2.20"
+version = "0.2.21"
 authors = [
   { name="Samuel Garcia", email="sam.garcia.die@gmail.com" },
   { name="Alessio Buccino", email="alessiop.buccino@gmail.com" },