• Handle null nextDescription in describeElement, #1378
• Fix cause chain backtraces, #1453
• Fix Api.prototype.configure not merging correctly, #1423
• Tighten rrweb checkout control with watchdog, #1421
• Add is_uncaught attribute, #1409
• Span attribute for replay options, #1407
• Add network bodies to events when enabled, #1404
• Fix re-declared var, #1406