Mortar 0.3.11 · October 22, 2026

Startups explained, errors traced

Each phase of a start and its slowest mods, errors traced to the Harmony patch that threw, and imported profiles keep their local mods.

Startup and in game
Performance Startup and in game Each phase of a start, beside the six slowest mods.
Errors traced to their patch
Problems Errors traced to their patch An error names the Harmony patch, the method it patched and the source line.

What changed in 0.3.11

New

Linux and Windows

  • The AppImage runs on Linux Mint 21 and Ubuntu 22.04 (glibc 2.35 and newer)
  • The Flatpak keeps up with the other builds: switching a mod on or off takes a tenth of a second instead of a second, and the window opens sooner
  • On Windows the window opens straight away, without the long PowerShell pass some PCs saw before it
  • Use the system title bar, in Settings › Appearance, for desktops with their own window decorations

Importing and sharing

  • Gale profiles and r2modman or Gale codes bring the mods that were added from disk, as local mods, and the preview warns before a code's own program files install
  • In the import preview a mod's name opens its page, full names show and can be copied, and the whole tile shows what comes in

Mods and profiles

  • Local mods are marked in cards and the list (Mark local mods, on by default)
  • A selected card is tinted as well as outlined
  • The profile actions menu is grouped under headings and opens the profile folder
  • A mod's Needs and Used by include the libraries its plugins ask for

Performance and diagnostics

  • Performance opens on two cards, Startup and In game, with each phase named on the bar and the six slowest mods with their share of mod time
  • In game measuring starts on any launch, not only a measured one (Mortar BepInEx Bridge 0.3.2)
  • mortar.log times each step of Mortar's start, and Restart and record startup profile in the Mortar menu records the first 30 seconds for a bug report
  • Errors while running say which Harmony patch threw, on what, and at which source line
  • A crash names the native function the game died in, from Unity's and Microsoft's symbol servers

Games

  • Cities: Skylines II cities are listed and backed up per profile

Fixed (8)

  • After a Steam launch, Play now and Measure no longer stay greyed out once the game has closed
  • A library only a local mod's plugin asks for is no longer offered for removal
  • A game opened only for its setup page is no longer listed under Recently played
  • An error while running links to its own guide section
  • A program renamed with .old is refused in an imported profile, like any other program
  • The Flatpak on NVIDIA's proprietary driver gets the same rendering workaround as the other builds
  • Link previews of mortar.rethunk.tech no longer run words together
  • A card no longer shows a stray separator for a mod with no version

Downloads and checksums for 0.3.11 · Every release