MultiMC

Go to multimc.org to get the binaries. See changelog for changes.

This release brings initial support for Microsoft accounts, along with a nice pile of modpack platform changes and improved Java runtime detection. What comes next:• Bug fixes for Microsoft authentication (broken offline play, overzealous token refreshing, etc.).• Fixes for the current issues with Forge 1.17.x and newer.• Complete rework of Java runtime management. The game now requires different versions of the JRE and our current approach no longer works.• Full debranding of the MultiMC codebase and removal of API keys. Microsoft accounts This is the first release with Microsoft accounts in. Implementation is loosely based on documentation available from wiki.vg with some notable changes:• More complete implementation including getting and displaying GamerTags (see XR-046).• Using the OAuth Device Flow instead of closely integrating with a browser engine. MultiMC asks you to open a Microsoft login web page and put in a code that lets MultiMC authenticate. This lets you authenticate on a completely separate device like your phone, leaving code we ship and the computer you may not even trust out of the picture. As part of this, the skin fetching no longer uses a third party service and instead gets skins directly from Mojang. Capes can also be selected in MultiMC now. With how many people will now get one for migrating their accounts, it only makes sense. macOS update Because of issues with the Microsoft accounts, we now have two builds on macOS:• The old build with Qt 5.6 that does not work with Microsoft accounts, but can run on macOS older than 10.13.• A new build with Qt 5.15.2 that does work with Microsoft accounts, can use the new macOS dark theme and highlight colors, but requires at least macOS 10.13. MultiMC will update to the 5.15.2 builds when it detects that this is possible. It may look like it is updating twice, just let it do its thing. Similar approach got attempted on Windows, aiming to fix various display scaling and theming iss…

After roughly one year of maintenance and development work by various contributors, we're just calling it a good time to release. What got added since the last time? Quite a bit! But in general, this is more of a spring cleaning before the major changes that we need to make come in. What comes next after this:• Rework of the account system to add support for Microsoft accounts• Rework of the Mojang accounts to allow them to co-exist with Microsoft accounts• General fixes to dealing with account state and skins -- currently, we use a third party service to fetch skins and we only do it on application start.• Complete rework of Java runtime management. The game will soon require different versions of the JRE and our approach will no longer work in that environment. We'll probably call it 0.7 once all these are in place. Modpack platforms We've added a whole bunch of new modpack platforms to pick from right into the new instance dialog. If you run into any unusual issues with the imported packs, report them on the bug tracker.• Added a CurseForge pack browser• GH-3095: Added an FTB pack browser Temporarily, MultiMC ignores download failures for FTB packs (GH-3304). This is because the platform has consistency issues.• GH-469: Added a Technic/Solder pack browser• GH-405: Added a ATLauncher pack browser Other changes• Added the option to not use OpenAL and/or GLFW libraries bundled with the game. This is interesting if you have ones that come with your system and work better.• Skins (the part used for account icons) are now rendered with the overlay on.• GH-3130: Skin upload has been switched over to the new Mojang API and should have less issues.• MultiMC now shows world icons and allows resetting world icons in View Worlds.• GH-3229: Copy seed button has been updated to be compatible with newer versions of the game.• GH-3427: View Worlds now has a very simple Datapacks button - it just opens the system file browser.• GH-3189: Updated nbt library - this…

Yep. That is all.

Translation workflow has been completely changed to use crowdin. Half-broken twitch URL import has been removed - download the zip files and import them manually instead. Also, bugfixes, and a pile of small changes! See full changelog: https://github.com/MultiMC/MultiMC5/blob/d58481e0de15ec4f1eb60de9a42c6cc9ec330d86/changelog.md

• Mod list performance massively improved• MultiMC now uses toolbars instead of layouts with large buttons in the various options/instance pages See full changelog: https://github.com/MultiMC/MultiMC5/blob/c291946d2a8c3e03940da4070533e124283d303c/changelog.md

Changelog: https://github.com/MultiMC/MultiMC5/blob/5110b58def7e3e3118e6624959d6e5d561002c74/changelog.md

This is a release mostly aimed at getting all the small changes and fixes out of the door. Potentially breaking changes• Local libraries are only loaded from inside the instances now. Before, MultiMC allowed loading local libraries from the main libraries folder. This in turn allowed existence of instances which could not be transported from one installation of MultiMC to another. GH-2475: A bug that allowed the launch to continue with missing local libraries has also been fixed. Effectively, you will get errors from launching such instances. You can fix the errors by copying the libraries to the locations indicated in the error log. New or changed features• FTB import now has support for third party modpack codes. Better late than never?• Instance creation can now be interrupted / aborted.• GH-2053: You can now inspect and change the servers.dat file from MultiMC.• MultiMC now uses the https protocol for many more network requests.• GH-2352: There is now a button to open the .minecraft folder inside the selected instance.• GH-2232: MultiMC can now use .gif icons (not animated).• GH-2101: Instance renaming is now done inline, in the actual instance list.• GH-2452: When deleting a group, MultiMC asks for confirmation.• GH-1552: PermGen is no longer shown when it's not appropriate (java 8 and up).• GH-2144: When changing versions of a component like Forge, the current version is marked with (installed).• GH-2374: World list has been improved:• Alternating line background colors have been added.• The world game type is now shown in a column.• GH-2384: When installing a mod, existing mod with the same file name will be replaced.• The background cat sometimes wears a silly hat. Bugfixes• GH-2252: Fixed odd drag and drop behaviour on Windows Drag and drop of URLs from a browser locked up the browser. This needs further fixes on macOS.• Instance naming fixes:• GH-2355: Whitespace prefix or suffix is no longer allowed.• GH-2238: Newlines in instance name…