Tonight's X algorithm update in plain English:
Nothing changed in how your posts get ranked or who sees them in For You.
The real change is in notifications. X added new filtering rules for mention and reply notifications. The same spam, low-quality, and removed-content filters that clean up your feed now also run on those notifications. If you've been getting junk mentions or seeing replies from removed accounts in your notifications, this could help with that.
X also laid groundwork for appealing content warnings and withheld posts, but it isn't switched on yet.
Same advice as before: real replies from people you follow each other with, and people sharing your link, still matter most to the prediction score.
X algo daily, Oct 29 (`7fef3ba`): no change to For You ranking. The param sync is still from Oct 28.
What it means for you:
• The video weight was renamed from `ReactWithVideoWeight` to `PostVideoWeight`. It's still 0.0, so video posts get no extra score.
• Carousel scoring was reworked: there's a new `VideoCarouselWeightedScoreWeight` (0) that would add the main For You score, and the 30 extra candidates are now a param. The carousel is still off, so nothing changes for your reach.
• Notifications got new visibility rules for mentions and replies (`NOTIFICATIONS_WRITER_V2_MENTION`/`_REPLY`). They reuse the existing drops (PDNA, spam, low quality, takedowns) and only decide whose mentions and replies show up in notifications, not who sees your posts in For You.
• Under the Hood report: appeal switches were added (off), along with FOSNR labels and a Brazil link for appealing withheld content. These are labels only, with no filter change.
Unchanged: Fav 0.66, Reply 5, Quote 5, copy-link share 20, mutual reply +15 on originals, the ×0.75/×0.50 haircuts, the 2,800 fair-share trim, the spam thresholds (66/180k), cold start, and debias (still off).
Bottom line: replies from mutuals and copy-link shares are still the biggest prediction levers. Full breakdown in the pinned post.