Changelog

We ship small, often, and tell you exactly what changed.

Reverse-chronological list of product changes. No marketing — just what shipped.

Releases in 2025 24
Avg. days between releases 15
Current version v0.9.1
2026-04-28 v0.9.1

Deploy webhook improvements + INP attribution depth

  • Deploy correlation webhook now accepts GitHub Actions and CircleCI event payloads natively — no custom adapter required
  • INP attribution now surfaces the specific event handler chain contributing to long tasks, not just the element
  • Fixed edge case where SPAs using hash-based routing missed some route transitions in session path
  • Dashboard load time reduced from 1.4s to 0.6s on Growth tier by lazy-loading segment breakdowns
2026-03-11 v0.9.0

Session Replay Lite — general availability

  • Session Replay Lite now GA on Teams tier — path-and-timing replay for all captured sessions
  • Privacy controls: form input fields excluded by default; opt-in selective capture per field class
  • Replay viewer supports click-through to the exact session's LCP and INP events in the same view
  • Snippet updated to v0.9.0 — existing installs auto-update; no re-installation required
2026-01-30 v0.8.5

PagerDuty integration + custom alert thresholds by segment

  • PagerDuty webhook integration for regression alerts — configure incident priority and routing key per alert rule
  • Alert thresholds can now be set per segment (e.g. alert only on Mobile / 4G / checkout path)
  • Slack alert messages redesigned — now include the correlated deploy timestamp and percent change inline
  • p95 percentile added to all metric views alongside p50 / p75
2025-12-05 v0.8.3

Script attribution depth — now resolves to script owner

  • Third-party script attribution now maps domains to known vendor categories (tag manager, consent, analytics, A/B testing)
  • Top offenders list sortable by median delay, session impact, or affected-session percentage
  • CSV export for attribution report added to Growth and Teams tiers
  • Fixed: attribution occasionally over-counted scripts loaded by tag managers as separate entries
2025-10-18 v0.8.0

Custom marks + TTFB geographic segmentation

  • Custom performance.mark() calls now automatically captured and surfaced in the metrics dashboard
  • Mark-to-mark delta timing (e.g. hydration window) shown as derived metric
  • TTFB now segmented by city/region — surfaces CDN edge gap issues across geographies
  • API v1 endpoints for metric export added to documentation
2025-08-22 v0.7.4

INP support (replaces FID) + connection-type segmentation

  • INP (Interaction to Next Paint) replaces FID across all dashboards and alerts — aligns with Core Web Vitals update
  • Historical FID data preserved and viewable in legacy mode
  • Connection type segmentation (4G / 3G / wifi / unknown) added to all metric breakdowns
  • Snippet size reduced from 4.1KB to 2.9KB gzip with tree-shaking update
2025-06-10 v0.7.0

Regression alerts — deploy-correlated p75 alerting

  • Regression alert engine released — fires when p75 LCP, INP, or CLS crosses configurable thresholds after a detected deploy event
  • Slack webhook integration included — alert message links directly to the affected metric's time window
  • Deploy events can be submitted via API or inferred from sudden session cohort changes
  • Alert history and suppression controls available in dashboard settings
2025-04-14 v0.6.0

Third-party script attribution — initial release

  • Script attribution engine identifies render-blocking third-party scripts and quantifies their median delay per session
  • Attribution table shows top offenders by domain, median delay, and percentage of affected sessions
  • Available in Growth and Teams tiers
  • Snippet v0.6.0 required — includes updated ResourceTiming observer integration