diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index e18ee07..37fcefa 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.0.0"
+  ".": "1.0.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..4eb263e
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,25 @@
+# Changelog
+
+## 1.0.0 (2025-12-18)
+
+
+### ⚠ BREAKING CHANGES
+
+* Move bundler guide from docs/ to README.md
+* tsup is no longer maintained and has been replaced
+
+### Bug Fixes
+
+* pin all GitHub Actions to full-length commit SHAs ([#27](https://github.com/gander-templates/node-project-starter/issues/27)) ([88fafd5](https://github.com/gander-templates/node-project-starter/commit/88fafd5dd9cbfe226351cf1037e13e17d978c6ad))
+* remove repository condition and add package-lock.json auto-creation ([#11](https://github.com/gander-templates/node-project-starter/issues/11)) ([69ece38](https://github.com/gander-templates/node-project-starter/commit/69ece38c0cc5aed4da25c11cb89b3dfe209e5246))
+* remove security-events write permission from global workflow permissions ([#25](https://github.com/gander-templates/node-project-starter/issues/25)) ([e7dd245](https://github.com/gander-templates/node-project-starter/commit/e7dd245944e838e158c5fcc9f4ddb9dfb62b813b))
+* remove src/lib directory from project structure ([4b19afa](https://github.com/gander-templates/node-project-starter/commit/4b19afa51e12f6f1bbb75c059bc264ab257fb2c7))
+* skip npm lifecycle scripts when installing production dependencies ([#21](https://github.com/gander-templates/node-project-starter/issues/21)) ([879aa6b](https://github.com/gander-templates/node-project-starter/commit/879aa6bc4ea1975ece66fa1b441de125cf0119da))
+* update scorecard-action from v2 to v2.4.0 ([#23](https://github.com/gander-templates/node-project-starter/issues/23)) ([28183c1](https://github.com/gander-templates/node-project-starter/commit/28183c1d681b4d49146f6cc205d82c1fff6fa02f))
+* use first commit message as PR title in auto-pr workflow ([#7](https://github.com/gander-templates/node-project-starter/issues/7)) ([ec3c9d3](https://github.com/gander-templates/node-project-starter/commit/ec3c9d3d618e66aca6942f80f4b87d6332153acf))
+
+
+### Documentation
+
+* replace tsup with tsdown/pkgroll options and add publint ([0ccf285](https://github.com/gander-templates/node-project-starter/commit/0ccf2851c27f8dbedf39e97b633f44ad3d1063ac))
+* simplify bundler guide and CLAUDE.md references ([#2](https://github.com/gander-templates/node-project-starter/issues/2)) ([63e2b96](https://github.com/gander-templates/node-project-starter/commit/63e2b968d385d24b862704b4aa2e2da1ec47493d))
diff --git a/package.json b/package.json
index 832e0ca..e41e36e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@gander-templates/node-project-starter",
-  "version": "0.0.0",
+  "version": "1.0.0",
   "description": "Production-ready GitHub template for Node.js library/package projects with enterprise-grade CI/CD pipelines, security scanning, and automated release management",
   "type": "module",
   "main": "./dist/index.cjs",