Nov
- Session replay - Session replay playlists- Replay Team - Steady improvements to the session replay tool have made it easier to find interesting replays, but how about collecting them for later reference? We don't want users to resort to bookmarking the page, so we've created the option to save sessions into static playlists. Plus, you can create dynamic playlists by specifying the events you're interested in! 
Oct
- Deployment - PostHog Cloud EU launched- Infrastructure Team - It's the same old PostHog Cloud, but now it's GDPR-ready and hosted in Frankfurt. That means better performance for users in Europe, and not having to worry about [whether Google Analytics is illegal in your country[(https://www.isgoogleanalyticsillegal.com/). Users who host in the US can also switch easily to our EU servers if needed. 
Sep
- Sparks joy 
- Sparks joy - Redesigned calendar and annotations- Product Analytics Team - The 1.40.0 update was all about visual polish, and we start with new calendar and date components. These are some of the most used modals in PostHog, so we gave careful attention to providing an improved and more unified experience. - We also updated our annotations interface! This resolved several layout and interaction issues that had previously been impacting annotations. We also touched up the annotations page to highlight important information better! 
- Feature flags - Turbo feature flags released- Feature Success Team - It used to be that checking a feature flag in client libraries other than - posthog-jsresulted in up to two network requests to our servers. This wasn't ideal for our users because it slowed down their render times and adds load for us. So, we got rid of this problem by introducing turbo feature flags.
Aug
- People & properties - Beta: Combining persons and events- Product Analytics Team - In Update 1.39 we released a new beta which changes how we store Person and Event data, essentially combining the two into a new format. The upside? Significant performance increases for all users on the test. - Following this beta, the work was greenlit and rolled out to all users on PostHog Cloud. 
- Product analytics 
Jul
- Product analytics - Insight subscriptions- Product Analytics Team - We made it possible to export insights and dashboard as images so you can more easily share them with colleagues, as well as adding an option to subscribe to them in Slack and email. This is great if you have an insight or dashboard you want a whole team to monitor on a regular basis! 
Jun
- Event pipelines - Rapid ingestion pipeline- Pipeline Team - We made it faster to load insights and replays. The issue was that some data payloads were quite big, which resulted in the network slowing things down. To improve this, we added compression to a few of the endpoints in the app, and now see at least 50% smaller responses sent to clients. Hurrah! 
May
- Sparks joy 
Apr
- Session replay 
Mar
- More - Offsite: Iceland- People & Ops Team - Once a year, the entire company gets together for a week. We spend the time running sessions about our company values, discussing our strategy and completing a hackathon. Our trip to Iceland also saw the start of our tradition of keeping promises for what each of us will do when we IPO. 
Feb
- More - 7,000 stars on GitHub- Marketing Team - Can you ever truly have enough GitHub stars? We don't think so. That's why we keep asking people to consider giving us more. 
- A/B testing - A/B Testing- Feature Success Team - Update 1.33 added a full experimentation suite, built on the back of our existing Feature Flag setup. The primary feature is the ability to run multivariate A/B tests and analyze the results in PostHog. We immediately started using it to test further product improvements. 
- People & properties - Data Management Suite- Pipeline Team - In Update 1.34 we added a new tool which helps you organize your PostHog data in-house through event definitions, definition tagging and many more features. This is especially useful in large teams, where it can sometimes be difficult to know if your insights are using the right events. 
Jan
- More - 5,000 stars on GitHub- Marketing Team - What does a hedgehog with 5,000 GitHub stars want more than anything else? More stars, of course!