Pss pss… another pre-release 👀

We’re opening up testing for the next batch of changes. This build brings back some highly requested features alongside a number of quality-of-life improvements, and we’re interested to see how it performs in real-world use.

Our full changelog isn’t finalized yet, but here are some highlights:

• Add back FTB modpack support
• Highlight resources incompatible with the Minecraft version
• Track dependencies in the Mods page
• Add support for IBM Semeru Runtime Open Edition(openj9 jvm)

As always, feedback and breakage reports are welcome.

Please note: this is a development build. Bugs are expected—make sure to back up your data and report any issues you encounter.

Changelog

You can find a full list of changes here: 9.4...10.0.0

Added

• Add CLI option to open main window when launching instance by @MatthewCash in #5107
• Add a development container by @getchoo in #5091
• Add back FTB modpack support by @Trial97 in #3559
• Add configurable option on ScrollMessageBox by @dsch7705 in #4335
• Add icons in settings account list by @TheKodeToad in #4684
• Allow moving accounts in list by @Octol1ttle in #4647
• Allow overriding URL for downloading legacy FML libs by @Octol1ttle in #4862
• Ask before deleting saves as part of a Modpack update by @Trial97 in #4622
• Highlight resources incompatible with the Minecraft version by @TheKodeToad in #5010
• JavaChecker: Add support for ppc64 and ppc64le architectures by @runlevel5 in #5212
• Log OS, CPU, RAM and GPUs on all systems by @Octol1ttle in #5169
• Mark accounts with errors in dropdown by @Octol1ttle in #5181
• Print custom environment variables during instance launch by @Octol1ttle in #4832
• Track dependencies in Mods page by @Trial97 in #3738
• URL protocol modpack import for any encoded URL by @Dan4oby in #4990
• Updated Resource Pack Formats by @Trial97 in #5199
• feat+fix: Rework modrinth fallback for blocked mods a bit by @DioEgizio in #4499
• feat: curseforge modpack downloading via binaryname:// uri by @2lay in #4872
• feat: ibm semeru runtime open edition support (openj9 jvm) by @ludgie in #5138
• update local pack by url by @Trial97 in #4474

Changed

• Cache news feed by @Scrumplex in #4964
• Don't manually format UUIDs by @Octol1ttle in #5045
• Download game files during instance creation by @Octol1ttle in #4944
• Enable warnings as errors by @Trial97 and @Octol1ttle in #5101 and #5158
• Make Minecraft resource URL override consistent with other overrides by @Octol1ttle in #4860
• Modrith api optional changelog by @Ryex in #5197
• Refactor global C/CXX flags in CMake by @getchoo in #5133
• Sort modpack versions properly by @TheCourierNV in #5170
• Use LLVM-based stdenv for Nix build/shell by @getchoo in #5155
• handle mod formatting codes by @Trial97 in #4550
• mod versions now list in newest first order by @Trial97 in #5194 and #5213
• ui: making trackpad scrolling smoother across all listing views by @peenutdev in #5029

Fixed

• Actually check for updates on launch by @Octol1ttle in #5076
• Allow -Duser.language to be overriden by @TheKodeToad in #5017
• Do not delete LaunchController before we're done using it by @Octol1ttle in #4822
• Don't show progress dialog when automatically checking for updates by @Octol1ttle in #5075
• Fix #4695: Update java path label and tooltip by @metehanCekci in #5198
• Fix backface culling re-enabling with elytra preview on by @Octol1ttle in #5093
• Fix infinite update by @Trial97 in #5187
• NewsDialog: Save and restore geometry by @Octol1ttle in #5077
• Open correct wiki URL when opened from main window by @Octol1ttle in #5130
• OtherLogsPage: Fix some strings not being translatable by @Octol1ttle in #5074
• OtherLogsPage: Remove CR when removing LF by @Octol1ttle in #5073
• Overwrite component update task when it has different network mode by @Octol1ttle in #5216
• Skin renderer: Do not enable backface culling by @Octol1ttle in #5078
• Stop showing a star on the oldest java by @TheKodeToad in #5056
• Use an owning QByteArray in ByteArraySink by @TheKodeToad in #5050
• fix %INST_JAVA% incorrect path format on windows by @deiseil in #5072
• fix crash with skin format by @Trial97 in #5000
• fix no name instances by @Trial97 in #5055
• fix tweakers by @Trial97 in #4913
• fix zip path traversal by @Trial97 in #5034
  Commit Commit(sha="f2cf982ea86d3963040713cfd4235bc1b3cb7fd0") from fix(flame): avoid double-fail assert in file resolving (#5043) does not have an author
  Commit Commit(sha="3576c2f101cfdefd3072867357694dca42507487") from fix(flame): avoid double-fail assert in file resolving (#5043) does not have an author
• fix(flame): avoid double-fail assert in file resolving by @m0nstrum in #5043
• fix: URL import fix for Linux by @Dan4oby in #5141
• fix: allow disabling gl and vulkan features with an envvar and disable it by default on appimage/portable by @DioEgizio in #5224
• fix: also export LIBGL_KOPPER_DRI2=1 on zink by @DioEgizio in #5222
• fix: parse world_gen_settings.dat for seed by @Trial97 in #5071
• launcher/minecract/auth/AccountList.cpp: add missing QIcon include by @parona-source in #4956

Removed

• Remove XboxProfileStep by @Octol1ttle in #4957
• Remove retrieving Xbox API token for gamertag by @Octol1ttle in #4958