chore: switch release calver to mdd patch

scripts/create-github-release.sh

@@ -14,8 +14,8 @@ Usage:
   ./scripts/create-github-release.sh <version> [--dry-run]
 
 Examples:
-  ./scripts/create-github-release.sh 2026.3.17
-  ./scripts/create-github-release.sh 2026.3.17 --dry-run
+  ./scripts/create-github-release.sh 2026.318.0
+  ./scripts/create-github-release.sh 2026.318.0 --dry-run
 
 Notes:
   - Run this after pushing the stable tag.
@@ -48,7 +48,7 @@ if [ -z "$version" ]; then
 fi
 
 if [[ ! "$version" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
-  echo "Error: version must be a stable calendar version like 2026.3.17." >&2
+  echo "Error: version must be a stable calendar version like 2026.318.0." >&2
   exit 1
 fi
 

scripts/release-lib.sh

@@ -107,7 +107,7 @@ get_current_stable_version() {
   fi
 }
 
-stable_version_for_date() {
+stable_version_slot_for_date() {
   node - "${1:-}" <<'NODE'
 const input = process.argv[2];
 
@@ -117,7 +117,10 @@ if (Number.isNaN(date.getTime())) {
   process.exit(1);
 }
 
-process.stdout.write(`${date.getUTCFullYear()}.${date.getUTCMonth() + 1}.${date.getUTCDate()}`);
+const month = String(date.getUTCMonth() + 1);
+const day = String(date.getUTCDate()).padStart(2, '0');
+
+process.stdout.write(`${date.getUTCFullYear()}.${month}${day}`);
 NODE
 }
 
@@ -131,6 +134,53 @@ process.stdout.write(`${y}-${m}-${d}`);
 NODE
 }
 
+next_stable_version() {
+  local release_date="$1"
+  shift
+
+  node - "$release_date" "$@" <<'NODE'
+const input = process.argv[2];
+const packageNames = process.argv.slice(3);
+const { execSync } = require("node:child_process");
+
+const date = input ? new Date(`${input}T00:00:00Z`) : new Date();
+if (Number.isNaN(date.getTime())) {
+  console.error(`invalid date: ${input}`);
+  process.exit(1);
+}
+
+const stableSlot = `${date.getUTCFullYear()}.${date.getUTCMonth() + 1}${String(date.getUTCDate()).padStart(2, "0")}`;
+const pattern = new RegExp(`^${stableSlot.replace(/\./g, '\\.')}\.(\\d+)$`);
+let max = -1;
+
+for (const packageName of packageNames) {
+  let versions = [];
+
+  try {
+    const raw = execSync(`npm view ${JSON.stringify(packageName)} versions --json`, {
+      encoding: "utf8",
+      stdio: ["ignore", "pipe", "ignore"],
+    }).trim();
+
+    if (raw) {
+      const parsed = JSON.parse(raw);
+      versions = Array.isArray(parsed) ? parsed : [parsed];
+    }
+  } catch {
+    versions = [];
+  }
+
+  for (const version of versions) {
+    const match = version.match(pattern);
+    if (!match) continue;
+    max = Math.max(max, Number(match[1]));
+  }
+}
+
+process.stdout.write(`${stableSlot}.${max + 1}`);
+NODE
+}
+
 next_canary_version() {
   local stable_version="$1"
   shift
@@ -159,7 +209,7 @@ for (const packageName of packageNames) {
   } catch {
     versions = [];
   }
-
+ 
   for (const version of versions) {
     const match = version.match(pattern);
     if (!match) continue;

scripts/release.sh

@@ -10,6 +10,7 @@ channel=""
 release_date=""
 dry_run=false
 skip_verify=false
+print_version_only=false
 tag_name=""
 
 cleanup_on_exit=false
@@ -17,20 +18,23 @@ cleanup_on_exit=false
 usage() {
   cat <<'EOF'
 Usage:
-  ./scripts/release.sh <canary|stable> [--date YYYY-MM-DD] [--dry-run] [--skip-verify]
+  ./scripts/release.sh <canary|stable> [--date YYYY-MM-DD] [--dry-run] [--skip-verify] [--print-version]
 
 Examples:
   ./scripts/release.sh canary
   ./scripts/release.sh canary --date 2026-03-17 --dry-run
   ./scripts/release.sh stable
   ./scripts/release.sh stable --date 2026-03-17 --dry-run
+  ./scripts/release.sh stable --date 2026-03-18 --print-version
 
 Notes:
-  - Canary releases publish YYYY.M.D-canary.N under the npm dist-tag "canary"
-    and create the git tag canary/vYYYY.M.D-canary.N.
-  - Stable releases publish YYYY.M.D under the npm dist-tag "latest" and create
-    the git tag vYYYY.M.D.
-  - Stable release notes must already exist at releases/vYYYY.M.D.md.
+  - Stable versions use YYYY.MDD.P, where M is the UTC month, DD is the
+    zero-padded UTC day, and P is the same-day stable patch slot.
+  - Canary releases publish YYYY.MDD.P-canary.N under the npm dist-tag
+    "canary" and create the git tag canary/vYYYY.MDD.P-canary.N.
+  - Stable releases publish YYYY.MDD.P under the npm dist-tag "latest" and
+    create the git tag vYYYY.MDD.P.
+  - Stable release notes must already exist at releases/vYYYY.MDD.P.md.
   - The script rewrites versions temporarily and restores the working tree on
     exit. Tags always point at the original source commit, not a generated
     release commit.
@@ -94,6 +98,7 @@ while [ $# -gt 0 ]; do
       ;;
     --dry-run) dry_run=true ;;
     --skip-verify) skip_verify=true ;;
+    --print-version) print_version_only=true ;;
     -h|--help)
       usage
       exit 0
@@ -118,15 +123,20 @@ CURRENT_SHA="$(git -C "$REPO_ROOT" rev-parse HEAD)"
 LAST_STABLE_TAG="$(get_last_stable_tag)"
 CURRENT_STABLE_VERSION="$(get_current_stable_version)"
 RELEASE_DATE="${release_date:-$(utc_date_iso)}"
-TARGET_STABLE_VERSION="$(stable_version_for_date "$RELEASE_DATE")"
-TARGET_PUBLISH_VERSION="$TARGET_STABLE_VERSION"
-DIST_TAG="latest"
 
 PUBLIC_PACKAGE_INFO="$(list_public_package_info)"
-mapfile -t PUBLIC_PACKAGE_NAMES < <(printf '%s\n' "$PUBLIC_PACKAGE_INFO" | cut -f2)
+PUBLIC_PACKAGE_NAMES=()
+while IFS= read -r package_name; do
+  [ -n "$package_name" ] || continue
+  PUBLIC_PACKAGE_NAMES+=("$package_name")
+done < <(printf '%s\n' "$PUBLIC_PACKAGE_INFO" | cut -f2)
 
 [ -n "$PUBLIC_PACKAGE_INFO" ] || release_fail "no public packages were found in the workspace."
 
+TARGET_STABLE_VERSION="$(next_stable_version "$RELEASE_DATE" "${PUBLIC_PACKAGE_NAMES[@]}")"
+TARGET_PUBLISH_VERSION="$TARGET_STABLE_VERSION"
+DIST_TAG="latest"
+
 if [ "$channel" = "canary" ]; then
   require_on_master_branch
   TARGET_PUBLISH_VERSION="$(next_canary_version "$TARGET_STABLE_VERSION" "${PUBLIC_PACKAGE_NAMES[@]}")"
@@ -136,6 +146,11 @@ else
   tag_name="$(stable_tag_name "$TARGET_STABLE_VERSION")"
 fi
 
+if [ "$print_version_only" = true ]; then
+  printf '%s\n' "$TARGET_PUBLISH_VERSION"
+  exit 0
+fi
+
 NOTES_FILE="$(release_notes_file "$TARGET_STABLE_VERSION")"
 
 require_clean_worktree

scripts/rollback-latest.sh

@@ -12,8 +12,8 @@ Usage:
   ./scripts/rollback-latest.sh <stable-version> [--dry-run]
 
 Examples:
-  ./scripts/rollback-latest.sh 2026.3.17
-  ./scripts/rollback-latest.sh 2026.3.17 --dry-run
+  ./scripts/rollback-latest.sh 2026.318.0
+  ./scripts/rollback-latest.sh 2026.318.0 --dry-run
 
 Notes:
   - This repoints the npm dist-tag "latest" for every public package.
@@ -45,7 +45,7 @@ if [ -z "$version" ]; then
 fi
 
 if [[ ! "$version" =~ ^[0-9]+\.[0-9]+\.[0-9]+$ ]]; then
-  echo "Error: version must be a stable calendar version like 2026.3.17." >&2
+  echo "Error: version must be a stable calendar version like 2026.318.0." >&2
   exit 1
 fi