chore(typescript): release 3.64.0

Author: github-actions[bot]

…es/unreleased/add-comma-array-format.yml …hanges/3.64.0/add-comma-array-format.ymlgenerators/typescript/sdk/changes/unreleased/add-comma-array-format.yml renamed to generators/typescript/sdk/changes/3.64.0/add-comma-array-format.yml generators/typescript/sdk/changes/unreleased/add-comma-array-format.yml renamed to generators/typescript/sdk/changes/3.64.0/add-comma-array-format.yml

@@ -1,4 +1,15 @@
 # yaml-language-server: $schema=../../../fern-versions-yml.schema.json
+- version: 3.64.0
+  changelogEntry:
+    - summary: |
+        Add queryBuilder() for query parameter serialization with per-parameter format control.
+        The generator now emits a fluent builder pattern (`core.url.queryBuilder()`) for query string
+        construction, where each parameter's serialization format is decided at code-gen time via
+        `.add(key, value, { style: "comma" })`. OpenAPI query parameters with `explode: false` use
+        the comma style to produce comma-separated values (e.g., `tags=a,b,c`).
+      type: feat
+  createdAt: "2026-04-17"
+  irVersion: 66
 - version: 3.63.8
   changelogEntry:
     - summary: |