I am moving my domains away from Cloudflare and Namecheap. The move takes several days and there will most likely be some downtime as the move is happening.
I am sorry about the unavailability of lemmy.wtf. After doing, what I thought would be a simple update, ended in hours and hours of troubleshooting, trying to get lemmy.wtf online again.
Luckily lemmy.wtf is back up again, however it seems there is issues with uploaded images. Still working on trying to solve that.
This release is very large with almost 400 commits since 0.18.5. As such we can only give a general overview of the major changes in this post, and without going into detail. For more information, read the full changelog and linked issues at the bottom of this post.
This version brings major optimizations to the database queries, which significantly reduces CPU usage. There is also a change to the way federation activities are stored, which reduces database size by around 80%. Special thanks to @phiresky for their work on DB optimizations.
The federation code now includes a check for dead instances which is used when sending activities. This helps to reduce the amount of outgoing POST requests, and also reduce server load.
In terms of security, Lemmy now performs HTML sanitization on all messages which are submitted through the API or received via federation. Together with the tightened content-security-policy from 0.18.2, cross-site scripting attacks are now much more difficult.
Other than that, there are numerous bug fixes and minor enhancements.
Since this will most likely only be merged to main and the upcoming 0.18.1 release (candidates), it will put additional pressure on actual releasing 0.18.1 and updating the existing lemmy instances.
Both the Backend as well as the Frontend have a rather convoluted commit history (UI much worse than BE). It almost looks like git rebase does not exist.
Update: It's not only YT thumbnails which aren't shown. This is your post about the free 24 slot bag as shown on lemmy.wtf (without thumbnail), lemmy.world (without thumbnail) and feddit.de (with thumbnail):