Features, performance work, and fixes from the Crawltic engineering team. Each entry maps to a tagged release of the API, CLI, SDKs, and MCP server.
Filter by type. The rail fills in as you scroll.
Peek at results anytime without inflating your false-positive rate. Sequential testing is now the default for all new experiments; existing ones can opt in from the API.
Sample ratio mismatch alerts now post straight to the Slack channel attached to an experiment, with the chi-square result, the observed split, and the most likely cause.
The Crawltic MCP server is GA with an SLA. Adds ship_winner and get_results tools, plus streaming updates while an experiment is running.
Daily experiment facts were bucketed in UTC regardless of project settings. Rollups now honor the project timezone, and historical facts were backfilled automatically.
Set allocation: "thompson" and Crawltic re-weights traffic toward the best-performing arm every minute, while keeping a guaranteed exploration floor for every variant.
Rewrote the assignment path to resolve entirely at the edge. p99 latency dropped from 22ms to 4ms globally.
Attach guardrail metrics to any experiment. Crawltic alerts and can auto-pause a rollout if a guardrail regresses past your threshold.
Fully typed experiment and metric definitions generated from your project schema, a 4.1kb edge bundle, and first-class React Server Components support.
Every REST resource is now also available over GraphQL at /v1/graphql, including live subscriptions on experiment results.
Pin a project to eu-central and every assignment, event, and result stays in Frankfurt. Processing, storage, and backups never leave the region.
Crawltic now detects and flags sample ratio mismatches automatically, surfacing likely causes (bot traffic, redirect bugs, caching issues).
Every release is tagged, signed, and published to the changelog feed, the CLI, and a webhook you can subscribe to.
crawltic changelog --since v2.2 in any shellrelease.published webhook with semver and diffGet an API key and every release above is already yours.