Bump mixpanel from 0.18.1 to 0.19.1

[dependabot]

Bumps mixpanel from 0.18.1 to 0.19.1.

Release notes

Sourced from mixpanel's releases.

Support for Mixpanel Feature Flags

The SDK can now be used to load and evaluate Mixpanel Feature Flags (see https://docs.mixpanel.com/docs/featureflags). It supports two modes of operation, remote evaluation and local evaluation.

Remote Evaluation

const mixpanel = Mixpanel.init(`<YOUR_TOKEN>`, {
  remote_flags_config: {
    // optional configuration
    request_timeout_in_seconds: 5,
  },
});
// or to enable remote evaluation with no custom configuration:
const mixpanel = Mixpanel.init(&lt;YOUR_TOKEN&gt;, {
remote_flags_config: {},
});
// A network call is made to fetch the assigned variant for a user
const variantValue = await mixpanel.remote_flags.getVariantValue(&lt;YOUR_FLAG_KEY&gt;, &lt;FALLBACK_VARIANT&gt;, {
distinct_id : &lt;USER DISTINCT ID&gt;,
});

Local Evaluation

const mixpanel = Mixpanel.init(`YOUR_PROJECT_TOKEN`, {
  local_flags_config: {
    enable_polling: true,
    polling_interval_in_seconds: 60,
  },
});
// or to enable local evaluation with no custom configuration:
const mixpanel = Mixpanel.init(<YOUR_TOKEN>, {
local_flags_config: {},
});
// Polls the endpoint for flag definitions
mixpanel.local_flags.startPollingForDefinitions();
// User is quickly assigned to a variant based on polled flag definitions
const variantValue = mixpanel.local_flags.getVariantValue(<YOUR_FLAG_KEY>, <FALLBACK_VARIANT>, {
distinct_id : <USER_DISTINCT_ID,
});

Further Node.js-specific Feature Flags documentation is available at https://docs.mixpanel.com/docs/tracking-methods/sdks/nodejs/nodejs-flags.

Changelog

Sourced from mixpanel's changelog.

0.19.1 / 2025-11-13

• fix for .d.ts issue introduced in v0.19.0

0.19.0 / 2025-11-12

• initial support for Feature Flags

Commits

• e5742a3 0.19.1
• 89139e1 changelog
• 1e926b3 fix .d.ts and add a basic typechecking example/CI
• 5215633 changelog
• 73dfea6 0.19.0
• 27942b9 updating deceiving comment
• ca44f61 install deps after merge
• 34df629 Merge remote-tracking branch 'origin/master' into efahk_flags
• b2874d3 removing version bump from packages lock file
• fb7e2e9 Update deps (#245)
• Additional commits viewable in compare view

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