v1.5.21

What's Changed

• Maxsibilla/sankey header update by @maxsibilla in #538
• Maxsibilla/source metadata blood group by @maxsibilla in #539
• Checking source type during has_rui_information by @maxsibilla in #543
• Maxsibilla/update threads by @maxsibilla in #548
• Maxsibilla/issue 541 by @maxsibilla in #546
• Adding url validation to publication schema by @maxsibilla in #550
• Tjmadonna/544 processing information fix by @maxsibilla in #552
• Maxsibilla/entity spec update by @maxsibilla in #554
• Libpitt/556 origin samples by @maxsibilla in #558

Full Changelog: v1.5.20...v1.5.21