2026.06.30

What's Changed

• Build: test ephemeral builders approach by @humitos in #13117
• Update common by @stsewd in #13148
• Squash core migrations by @stsewd in #13150
• Use django's content_disposition_header utility by @stsewd in #13136
• Nginx: avoid sending Cookie header to S3 when using sendfile by @humitos in #13152
• Dependencies: all packages updated via pip-tools by @github-actions[bot] in #13158
• Build: don't sync or install dev dependencies when using uv run by @humitos in #13154
• Proxito: add max-age= to redirects by @humitos in #13144
• Build: update build tool versions by @humitos in #13156
• Docs: update GitHub App mentions by @stsewd in #13153

Full Changelog: 2026.06.23...2026.06.30