Add prepublish hook to unpin deps only for published version

beachball.config.js

@@ -1,6 +1,6 @@
 // @ts-check
 /** @type {import('beachball').BeachballConfig}*/
-module.exports = {
+const config = {
   groupChanges: true,
   access: "public",
   ignorePatterns: [
@@ -16,4 +16,19 @@ module.exports = {
     // This one is especially important (otherwise dependabot would be blocked by change file requirements)
     "yarn.lock",
   ],
+  hooks: {
+    prepublish: (packagePath, name, version, packageInfos) => {
+      const { packageJsonPath } = packageInfos[name];
+      const packageJson = require(packageJsonPath);
+      for (const [dep, version] of Object.entries(packageJson.dependencies || {})) {
+        // If the dep is a specific version, unpin before publishing.
+        // See the comment towards the end of renovate.json5 for why the deps are pinned to start out.
+        if (/^\d/.test(version)) {
+          packageJson.dependencies[dep] = `^${version}`;
+        }
+      }
+    },
+  },
 };
+
+module.exports = config;