Introduce heatmap visualizations for Application Metrics
ReactJS changelog updates
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Fixed numerous edge‑case bugs: watch‑poll handling, selector parsing, preflight outline overrides, theme color resolution, @source rule scanning, and @vite reload behavior.
Adds a new sentry_grpc package to instrument outgoing gRPC calls in Dart and Flutter apps
Added optional "no save" flag to deno add, min dependency age alias, and HTTP2 max header size option for fetch; introduced aarch64-pc-windows-msvc compile target.
Introduces a new “Low-Value Spans” issue type (beta) that identifies high‑volume, low‑signal spans
Introduced new desktop capabilities (React Router autodetection, HMR for Vite/Nuxt, window opacity/transparency, framework build step) and added APIs like v8.setHeapSnapshotNearHeapLimit and getTestContext() in ext/node.
Custom Dashboards can now display visualizations based on Application Metrics equations
Published the @next/swc wasm web package that was unintentionally omitted since v15.5.15.