diff --git a/package.json b/package.json
index 7d3efca29..4a88d5eb7 100644
--- a/package.json
+++ b/package.json
@@ -34,6 +34,7 @@
     "package:mac:arm64": "electron-forge make --skip-package --platform=darwin --arch=arm64",
     "package:windows": "electron-forge make --skip-package --platform=win32",
     "release:package": "npx -y zx ./scripts/prepare-release-packages.mjs",
+    "post-release:milestones": "npx -y zx ./scripts/post-release-milestones.mjs",
     "generate-icons": "node ./scripts/generate-icons.js",
     "download-vue-devtools": "node ./scripts/download-vue-devtools.mjs",
     "lint": "eslint --ext .js,.vue src/ --fix",
diff --git a/scripts/post-release-milestones.mjs b/scripts/post-release-milestones.mjs
new file mode 100644
index 000000000..bbcb35a6a
--- /dev/null
+++ b/scripts/post-release-milestones.mjs
@@ -0,0 +1,124 @@
+/*
+ * SPDX-FileCopyrightText: 2025 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+const { blue, green, yellow, gray, red } = chalk
+
+const confirm = async (message) => {
+	if (!argv.y && await question(yellow(`${message} (y/N)`)) !== 'y') {
+		process.exit(0)
+	}
+}
+
+if (os.platform() === 'win32') {
+	usePwsh()
+}
+
+// Verify that GitHub CLI is available and authenticated
+await $`gh auth status`
+
+/********
+ * Help *
+ ********/
+
+if (argv.help) {
+	echo`Update milestones after the release:
+	1. Renames the current milestone to the release milestone (Next Release -> v1.2.3)
+	2. Creates the next milestone as a replacement for the current (Next Release)
+	3. Moves all open issues and PRs from the current=release milestone to the new milestone (v1.2.3 -> Next Release)
+	4. Closes the current=release milestone
+
+USAGE:
+	npm run post-release:milestones
+	npm run post-release:milestones -- -y --current="🪴 Next Release" --release="v1.2.3" --next="🌵 Next Release"
+
+ARGS:
+	--help - show help
+	-y - skip confirmation
+	--current - Optionally the current milestone to rename. Default is "🪴 Next Release".
+	--release - Optionally the release version to rename the source milestone to. Default is the v + package.json version.
+	--next - Optionally the new milestone to create. Default is --source, which is "🪴 Next Release".
+`
+	process.exit(0)
+}
+
+// Read the package.json
+const packageJson = await fs.readJson(path.join(__dirname, '../package.json'))
+// Read args with defaults
+const currentMilestone = argv.current ?? '🪴 Next Release'
+const releaseMilestone = argv.release ?? 'v' + packageJson.version
+const nextMilestone = argv.next ?? currentMilestone
+
+const { nameWithOwner, milestones } = await $`gh repo view --json nameWithOwner,milestones`.json()
+echo(blue(`Maintain milestones after a release in ${nameWithOwner}`))
+
+/**************************************
+ * 1. Rename (Next Release -> v1.2.3) *
+ **************************************/
+
+const existingCurrentMilestone = milestones.find((milestone) => milestone.title === currentMilestone)
+const existingReleaseMilestone = milestones.find((milestone) => milestone.title === releaseMilestone)
+
+echo`1. Renaming milestone '${blue(currentMilestone)}' to '${blue(releaseMilestone)}'`
+if (existingReleaseMilestone) {
+	echo(yellow(`   Skipping: milestone '${blue(releaseMilestone)}' already exists`))
+} else if (existingCurrentMilestone) {
+	await confirm(`   Rename milestone '${blue(currentMilestone)}' to '${blue(releaseMilestone)}'?`)
+	await $`gh api 'repos/{owner}/{repo}/milestones/${existingCurrentMilestone.number}' --method PATCH --field title=${releaseMilestone}`
+	existingCurrentMilestone.title = releaseMilestone
+	echo(green(`   Renamed milestone '${blue(currentMilestone)}' to '${blue(releaseMilestone)}'`))
+} else {
+	echo(red(`Error: neither milestone '${blue(currentMilestone)}' nor '${blue(releaseMilestone)}' exist`))
+	process.exit(1)
+}
+
+/********************************
+ * 2. Create new 'Next Release' *
+ ********************************/
+
+const existingNextMilestone = milestones.find((milestone) => milestone.title === nextMilestone)
+
+echo`2. Create a new milestone '${blue(nextMilestone)}'`
+if (existingNextMilestone) {
+	echo(yellow(`   Skipping: the next milestone '${blue(nextMilestone)}' already exists`))
+} else {
+	await confirm(`   Create a new milestone '${blue(nextMilestone)}'?`)
+	await $`gh api '/repos/{owner}/{repo}/milestones' --method POST --field title=${nextMilestone}`
+	echo(green(`   Created a new milestone '${blue(nextMilestone)}'`))
+}
+
+/******************************************
+ * 3. Move items (v1.2.3 -> Next Release) *
+ ******************************************/
+
+echo`3. Moving all issues and PRs to ${blue(nextMilestone)}`
+
+const issues = await $`gh issue list --state=open --milestone=${releaseMilestone} --json=number,title --limit=1000`.json()
+const prs = await $`gh pr list --state=open --search='milestone:"${releaseMilestone}"' --json=number,title --limit=1000`.json()
+echo(gray(`   Found ${issues.length} issues and ${prs.length} PRs:`))
+echo(gray(prs.map((pr) => `   - PR #${pr.number}: ${pr.title}`).join('\n')))
+echo(gray(issues.map((issue) => `   - Issue #${issue.number}: ${issue.title}`).join('\n')))
+
+await confirm(`   Move ${issues.length + prs.length} items to '${blue(nextMilestone)}'?`)
+// Sleep for a bit to avoid rate limiting (90 requests per minute)
+await spinner(yellow('   Moving...'), async () => {
+	for (const issue of issues) {
+		await $`gh issue edit ${issue.number} --milestone=${nextMilestone}`
+		await sleep(100)
+	}
+	for (const pr of prs) {
+		await $`gh pr edit ${pr.number} --milestone=${nextMilestone}`
+		await sleep(100)
+	}
+})
+echo(green(`    ${issues.length + prs.length} items moved to '${blue(nextMilestone)}'`))
+
+/*******************************
+ * 4. Close milestone (v1.2.3) *
+ *******************************/
+
+echo`4. Closing milestone '${blue(releaseMilestone)}'`
+await confirm(`   Close milestone '${blue(releaseMilestone)}'?`)
+await $`gh api 'repos/{owner}/{repo}/milestones/${existingReleaseMilestone.number}' --method PATCH --field state=closed`
+echo(green(`   Closed milestone '${releaseMilestone}'`))