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Postiz

Social media scheduling tool to manage posts, build an audience, and grow a business

Alternative to: buffer, hypefury


About Versions (102)

v2.23.0

2026-08-04

Highlights

This release focuses on reliability and memory efficiency: provider media uploads are now streamed instead of buffered in memory, a new pending-post workflow prevents duplicate posts, and the MCP server got a round of stability and OAuth fixes.

🚀 Performance & Reliability

  • Streamed media uploads — provider media uploads now stream instead of buffering entire files in memory, dramatically reducing worker memory usage for large videos (#1835)
    • X (Twitter) videos upload in 1MB ranged chunks (#1796)
    • LinkedIn videos upload in 2MB ranges (#1786)
  • Duplicate-post protection — a new pending-post workflow (v1.0.6) resolves the state of in-flight posts before publishing, preventing duplicate posts when a publish attempt is interrupted (#1813)

🔒 Security

  • SSRF protection for webhooks and media-path fetches via a safe request dispatcher
  • Hardened streamed-upload paths after a full audit, including guarded Reddit S3 upload response parsing

🔌 MCP Improvements

  • Streamable HTTP is now served statelessly for more reliable connections (#1717)
  • OAuth discovery metadata no longer breaks key-in-URL MCP connectors (#1781)

✨ Features

  • Admins can now apply and cancel coupons for an impersonated user, with full translations (#1801)

🐛 Fixes

  • Email lookups for login, forgot password and impersonation are now case-insensitive (#1805)
  • Pinterest video pins now upload the actual mp4 file instead of the first media item (#1802)