What changed in 0.3.15

Simplified Chinese is open for translation on Weblate, and joins the language picker once part of it is translated
Update in all profiles downloads a version you have not downloaded yet, then updates every profile that had the old one, and says which profiles it could not update
In the Flatpak, account keys go to your desktop's keyring when the Secret portal is missing, and Settings › Accounts warns when neither is there and keys are kept unencrypted
Add game shows each loader's own icon

Paired computers must both run 0.3.15 to keep syncing configs and local archives: a computer now proves it holds the pairing key before Mortar sends it anything
The command line's backups trim, history trim, data cleanup and store remove need --yes; data cleanup --preview still lists without it
The Problems badge counts only the problems you need to fix
Startup timing for Risk of Rain 2 runs until the main menu is ready, and shows the loading after the title screen
A download that loses its connection tries again on its own before it fails, and a failed one says which site it could not reach
Replace with on a deprecated mod removes the old one once its replacement installs; one Undo brings both back
Merge offers Undo, and counts version changes as updates
On a narrow window, Home's buttons turn into icons
clamd scans trust only a clamd socket that root or the clamav user owns

Importing a Gale or r2modman profile no longer marks mods as no longer available when they ask for an old BepInExPack, depend on each other, or name BepInEx's pack another way; a mod whose dependency is gone imports without it and the profile's notes say so
Mortar sees Risk of Rain 2 running, so its in-game performance can be measured
Stardew Valley's per-profile game settings apply: Mortar reads and writes the file the game uses, and the window mode keeps the fullscreen settings in step
Test launch uses the launch options shown, and cancelling the dialog no longer saves them
The config text editor picks up a file the game rewrote, and asks before dropping unsaved edits when you switch mods
New badges on Nexus mods stay until you have looked at the mod
Two local archives with the same name each have their own favourite star
Endorse and Abstain show your choice when you reopen a mod
The Steam folders you added are searched when Mortar looks for Proton
A file over clamd's size limit is reported as too large instead of failing the scan
The New mod form's own fields are translated