diff --git a/.github/workflows/check_rust_quality.yml b/.github/workflows/check_rust_quality.yml
index 59f1cc1..3d16cd4 100644
--- a/.github/workflows/check_rust_quality.yml
+++ b/.github/workflows/check_rust_quality.yml
@@ -37,7 +37,7 @@ jobs:
             - name: Run tests
               run: ./scripts/test
 
-            - name: Merge to stable branch
+            - name: Merge to master branch
               uses: peter-evans/create-pull-request@v3
               with:
                   token: ${{ secrets.GITHUB_TOKEN }}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9b40be1..e7228a2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,7 @@
 
 ---
 
-## [v1.0.0](https://github.com/cophilot/templify/tree/1.0.0) (2024-3-?)
+## [v1.0.0](https://github.com/cophilot/templify/tree/1.0.0) (2024-3-28)
 
 -   Refactoring
 -   Added variable placeholders
diff --git a/README.md b/README.md
index 23f310f..97e869c 100644
--- a/README.md
+++ b/README.md
@@ -246,9 +246,23 @@ tpy load https://github.com/cophilot/templify-vault/tree/main/React-ts
 
 ## [Release Notes](https://github.com/cophilot/templify/blob/master/CHANGELOG.md)
 
-### [v0.7.0](https://github.com/cophilot/templify/tree/0.7.0)
-
--   macOS support added
+### [v1.0.0](https://github.com/cophilot/templify/tree/1.0.0)
+
+-   Refactoring
+-   Added variable placeholders
+-   Added `-reset` flag for the `reload` command
+-   Added `-force` flag for the `generate` command
+-   Added `-reload` flag for the `generate` command
+-   Added `-var` flag for the `generate` command
+-   Added `-default-var` flag for the `generate` command
+-   Short forms for case conversion
+-   Added divider selection support in the `.templify` file
+-   Added global flag support
+-   Added `--quiet` global flag
+-   Added `--dev` global flag
+-   Added `--log-file` global flag
+-   Initialize test suite
+-   CI pipeline for code quality checks
 
 ---
 
diff --git a/src/commands/update.rs b/src/commands/update.rs
index 8839a54..af32156 100644
--- a/src/commands/update.rs
+++ b/src/commands/update.rs
@@ -36,9 +36,14 @@ pub(crate) fn update(command: &Command) -> Status {
     }
 
     if !version.is_empty() {
-        if !VersionNumber::new().parse_from_string(&version) {
+        let mut version_number = VersionNumber::new();
+        if !version_number.parse_from_string(&version) {
             return Status::error(format!("Invalid version number: {}", version));
         }
+        if version_number.is_older(&VersionNumber::from_string("1.0.0")) {
+            return Status::error("Versions older than 1.0.0 are not supported.".to_string());
+        }
+
         log!("Updating templify to version {}...", version);
     } else {
         log!("Updating templify...");
diff --git a/src/types/version_number.rs b/src/types/version_number.rs
index 4c0d439..4f444fd 100644
--- a/src/types/version_number.rs
+++ b/src/types/version_number.rs
@@ -15,6 +15,13 @@ impl VersionNumber {
         }
     }
 
+    /// Create a new version number from a string
+    pub fn from_string(version: &str) -> VersionNumber {
+        let mut version_number = VersionNumber::new();
+        version_number.parse_from_string(version);
+        version_number
+    }
+
     /// Parse a version number from a string and return if it was successful
     pub fn parse_from_string(&mut self, version: &str) -> bool {
         let parts: Vec<&str> = version.split('.').collect();
@@ -45,4 +52,18 @@ impl VersionNumber {
         }
         false
     }
+
+    /// Check if this version number is older than the other
+    pub fn is_older(&self, other: &VersionNumber) -> bool {
+        if self.major < other.major {
+            return true;
+        }
+        if self.major == other.major && self.minor < other.minor {
+            return true;
+        }
+        if self.major == other.major && self.minor == other.minor && self.patch < other.patch {
+            return true;
+        }
+        false
+    }
 }