v2026.06.18.1

What's Changed

• Revert "Route oversized PDF shards through S3 for MinerU" by @suguanYang in #130
• Move production release flow to GitHub Releases by @suguanYang in #137
• chore: sync staging into main by @EricNGOntos in #138
• docs: add ultra-long PDF parsing news by @EricNGOntos in #140
• feat: unify PDF document profile routing by @EricNGOntos in #141
• feat: page memory parse track, TOC refactor, and usage_task cost tracking by @EricNGOntos in #143
• Add anonymous self-hosted telemetry client by @suguanYang in #142
• fix: update page billing rate by @suguanYang in #146
• Use PostHog SDK for self-hosted telemetry by @suguanYang in #145
• Add official library demo catalog by @suguanYang in #153
• Resolve Issue #158: Page-Memory PR4 modules, Excel table pathing, evidence renderer optimization by @EricNGOntos in #159
• Fix PR159 contract tests by @EricNGOntos in #161
• Fix PR 160 CodeQL comments by @suguanYang in #162
• Add research papers to Official Library by @suguanYang in #164
• chore: unify default DeepSeek model to deepseek-v4-flash by @EricNGOntos in #166
• feat: page-based-4 heading hierarchy with preceding context and thinking toggle by @EricNGOntos in #167

Full Changelog: 2026.06.04.1...2026.06.18.1