v0.21.0

What's Changed

• Docs/Report example update by @dcblundell in #362
• Feature/support perf data in range slider by @dcblundell in #358
• Docs/Add NPE documentation by @dcblundell in #363
• NPE by @aidemsined in #359
• Feature/device operations details by @aidemsined in #361
• Performance Report API by @smountenay-tt in #360

Full Changelog: v0.20.0...v0.21.0