when to a/b test #14027
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when to a/b test #14027
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Added section on A/B test metrics to guide experiment design.
raquelmsmith
commented
Dec 9, 2025
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| ### Self-hosted and hobby versions | ||
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| We have [sunset support for our kubernetes and helm chart managed self-hosted offering](/blog/sunsetting-helm-support-posthog). This means we no longer offer support for fixing to specific versions of PostHog. A [docker image is pushed for each commit to master](https://hub.docker.com/r/posthog/posthog). Each of those versions is immediately deployed to PostHog Cloud. | ||
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| The [deploy-hobby script](https://github.com/PostHog/posthog/blob/master/bin/deploy-hobby) allows you to set a `POSTHOG_APP_TAG` environment variable and fix your docker-compose deployed version of PostHog. Or you can edit your docker-compose file to replace each instance of `image: posthog/posthog:$POSTHOG_APP_TAG` with a specific tag e.g. `image: posthog/posthog:9c68581779c78489cfe737cfa965b73f7fc5503c` |
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this section is just moved down from above
danisaza
reviewed
Dec 19, 2025
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| #### A/B test metrics | ||
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| Experiment design is a bit of an art. There are different types of [metrics](/docs/experiments/metrics) you can use in PostHog experiments. Another benefit of running experimeints is forcing yourself to think through what other things your change might impact, which oftentimes doesn't happen in the regular release cycle! |
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Heads up: there's a typo here (experimeints -> experiments)
Really digging this documentation, by the way!
timgl
approved these changes
Jan 5, 2026
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Changes
Describes what categories of A/B tests we tend to run and when it makes sense to run a test.