diff --git a/NEWS b/NEWS
index e1328c2..70ddf96 100644
--- a/NEWS
+++ b/NEWS
@@ -1,5 +1,13 @@
 # Releases
 
+## grimoirelab-toolkit 1.0.0-rc.1 - (2024-04-09)
+
+**New features:**
+
+ * First major release\
+   GrimoireLab reached a stable status. This is our first major release.
+
+
   ## grimoirelab-toolkit 0.4.5 - (2024-03-27)
   
   * Update Poetry's package dependencies
diff --git a/grimoirelab_toolkit/_version.py b/grimoirelab_toolkit/_version.py
index 0156219..65f4f18 100644
--- a/grimoirelab_toolkit/_version.py
+++ b/grimoirelab_toolkit/_version.py
@@ -1,2 +1,2 @@
-# File auto-generated by semverup on 2024-03-27 12:04:23.826419
-__version__ = "0.4.5"
+# File auto-generated by semverup on 2024-04-09 10:21:46.139697
+__version__ = "1.0.0-rc.1"
diff --git a/pyproject.toml b/pyproject.toml
index 065df8b..7c75623 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "grimoirelab-toolkit"
-version = "0.4.5"
+version = "1.0.0-rc.1"
 description = "Toolkit of common functions used across GrimoireLab"
 authors = [
     "GrimoireLab Developers"
diff --git a/releases/1.0.0-rc.1.md b/releases/1.0.0-rc.1.md
new file mode 100644
index 0000000..b0ef464
--- /dev/null
+++ b/releases/1.0.0-rc.1.md
@@ -0,0 +1,7 @@
+## grimoirelab-toolkit 1.0.0-rc.1 - (2024-04-09)
+
+**New features:**
+
+ * First major release\
+   GrimoireLab reached a stable status. This is our first major release.
+
diff --git a/releases/unreleased/first-major-release.yml b/releases/unreleased/processed/first-major-release.yml
similarity index 100%
rename from releases/unreleased/first-major-release.yml
rename to releases/unreleased/processed/first-major-release.yml