# Prism Launcher: what changed from 10 to 11

- Product: Prism Launcher (https://whatsnew.fyi/product/prism-launcher)
- Vendor: Prism Launcher
- Range: changelog entries numbered after 10.0.5 up to and including 11.1.0, stable releases only
- Entries below: 5 releases (newest first)
- Resolved: 10 is 10.0.5 and 11 is 11.1.0, the newest stable release of each major we track
- Carrying security changes: 0 · CVEs mentioned: 0 · Mentioning breaking changes: 0 · Removing or deprecating something: 0
- Page: https://whatsnew.fyi/product/prism-launcher/compare/10...11

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

## What changed (66 changes, grouped by kind)

### Added

#### 11.1.0 (2026-09-03)

- Add warning for untrusted mods in imported modpacks

#### 11.0.3 (2026-07-11)

- Add modrinth headers for download source (standalone, modpack, dependency)
- Log components in instance logs

#### 11.0.1 (2026-04-12)

- Allow disabling low RAM warning

#### 11.0.0 (2026-04-09)

- Add CLI option to open main window when launching instance
- Add a development container
- Add back FTB modpack support
- Add back drag and dropping to screenshots page
- Add configurable option on ScrollMessageBox
- Add icons in settings account list
- Allow moving accounts in list
- Allow overriding URL for downloading legacy FML libs
- Ask before deleting saves as part of a Modpack update
- Highlight resources incompatible with the Minecraft version
- Add Javachecker support for ppc64 and ppc64le architectures
- Log OS, CPU, RAM and GPUs on all systems
- Mark accounts with errors in dropdown
- Print custom environment variables during instance launch
- Track dependencies in Mods page
- URL protocol modpack import for any encoded URL
- Updated Resource Pack Formats
- Warn user on launch if there is not enough available RAM
- Rework modrinth fallback for blocked mods
- Curseforge modpack downloading via binaryname:// uri
- IBM Semeru Runtime Open Edition support (openj9 jvm)
- Update local pack by URL

### Changed

#### 11.0.3 (2026-07-11)

- Include Flame API key in CDN downloads
- When auth is down, launch into offline mode

#### 11.0.0 (2026-04-09)

- Cache news feed
- Don't manually format UUIDs
- Download game files during instance creation
- Enable automatic update checking by default
- Enable warnings as errors
- Improve NetJob failure dialog
- Make Minecraft resource URL override consistent with other overrides
- Modrith API optional changelog
- Refactor global C/CXX flags in CMake

### Fixed

#### 11.1.0 (2026-09-03)

- Add missing tab stops and fix their order
- Avoid excessive config writes to reduce freezing especially on HDD
- Cache resource hard link count
- Fix existing instance shortcuts not being detected
- Fix hard to read menu bar colors on macOS
- Fix instance shortcuts breaking when the instance is renamed
- Prevent renaming instance folder while instance is running
- Fix crash when trying to install a disabled modloader

#### 11.0.3 (2026-07-11)

- AccountList: Skip refresh when !shouldRefresh
- Do not open account select dialog if there are no accounts
- Don't delete base directories when evicting metacache
- Don't remove old Microsoft accounts until they're successfully reauthenticated
- Fix Cmd+Q on macOS closing active window instead of quitting
- Fix Copy/Upload buttons not working in ScreenshotsPage
- Fix infinite loop in SkinManageDialog
- Fix memory leak and crash with data packs modal
- Fix offline accounts not being refreshed during launch
- Fix wrong Xbox failure string
- Remove trademark and special characters from instance folder names
- Fixed dependencies not enabling/disabling other dependencies
- Fixes for task abort logic
- Fixes to 'Use system locale'
- Fixes to PrismExternalUpdater
- NetJob: do not automatically retry on 404 Not Found response

#### 11.0.2 (2026-04-12)

- Updater no longer resets current task in finished signal

#### 11.0.1 (2026-04-12)

- Don't count JAR mods when checking offline libraries
- Fix build failing on 32 bit architectures
- Enable modpack changelog for Modrinth page
- Fix modpack upgrade

## Release notes

### 11.1.0 — Prism Launcher 11.1.0

- Date: 2026-09-03
- Version: 11.1.0
- Original notes: https://github.com/PrismLauncher/PrismLauncher/releases/tag/11.1.0
- Permalink: https://whatsnew.fyi/product/prism-launcher/releases/11.1.0

- **added** — Add warning for untrusted mods in imported modpacks
- **fixed** — Add missing tab stops and fix their order
- **fixed** — Avoid excessive config writes to reduce freezing especially on HDD
- **fixed** — Cache resource hard link count
- **fixed** — Fix existing instance shortcuts not being detected
- **fixed** — Fix hard to read menu bar colors on macOS
- **fixed** — Fix instance shortcuts breaking when the instance is renamed
- **fixed** — Prevent renaming instance folder while instance is running
- **fixed** — Fix crash when trying to install a disabled modloader

Greetings! This release includes a fairly small update - the main change being some extra safety with a warning for embedded mods when manually importing Modrinth or CurseForge modpacks.

Some issues with excessive disk activity should also be fixed now - you might find this especially reduces freezing when closing the launcher settings or launching an instance.

##### Added

- Add warning for untrusted mods in imported modpacks by [@TheKodeToad](https://github.com/TheKodeToad) in [#5886](https://github.com/PrismLauncher/PrismLauncher/pull/5886)

##### Fixed

- Added missing tab stops and/or fixed their order by [@D00NIK](https://github.com/D00NIK) in [#5662](https://github.com/PrismLauncher/PrismLauncher/pull/5662)
- Avoid excessive config writes (less freezing especially on HDD!) by [@TheKodeToad](https://github.com/TheKodeToad) and [@Octol1ttle](https://github.com/Octol1ttle) in [#5858](https://github.com/PrismLauncher/PrismLauncher/pull/5858), [#5945](https://github.com/PrismLauncher/PrismLauncher/pull/5945) and [#5913](https://github.com/PrismLauncher/PrismLauncher/pull/5913)
- Cache resource hard link count by [@TheKodeToad](https://github.com/TheKodeToad) in [#5860](https://github.com/PrismLauncher/PrismLauncher/pull/5860)
- Fix existing instance shortcuts not being detected by [@Octol1ttle](https://github.com/Octol1ttle) in [#5818](https://github.com/PrismLauncher/PrismLauncher/pull/5818)
- Fix hard to read menu bar colors on MacOS by [@frigtear](https://github.com/frigtear) in [#4997](https://github.com/PrismLauncher/PrismLauncher/pull/4997)
- Fix instance shortcuts breaking when the instance is renamed by [@Vishrut2403](https://github.com/Vishrut2403) and [@TheKodeToad](https://github.com/TheKodeToad) in [#5816](https://github.com/PrismLauncher/PrismLauncher/pull/5816), [#5930](https://github.com/PrismLauncher/PrismLauncher/pull/5930) and [#5887](https://github.com/PrismLauncher/PrismLauncher/pull/5887)
- Prevent renaming instance folder while instance is running by [@Vishrut2403](https://github.com/Vishrut2403) in [#5822](https://github.com/PrismLauncher/PrismLauncher/pull/5822)
- fix: crash when trying to install a disabled modloader by [@Trial97](https://github.com/Trial97) in [#5779](https://github.com/PrismLauncher/PrismLauncher/pull/5779)

### 11.0.3 — Prism Launcher 11.0.3

- Date: 2026-07-11
- Version: 11.0.3
- Original notes: https://github.com/PrismLauncher/PrismLauncher/releases/tag/11.0.3
- Permalink: https://whatsnew.fyi/product/prism-launcher/releases/11.0.3

- **added** — Add modrinth headers for download source (standalone, modpack, dependency)
- **added** — Log components in instance logs
- **changed** — Include Flame API key in CDN downloads
- **changed** — When auth is down, launch into offline mode
- **fixed** — AccountList: Skip refresh when !shouldRefresh
- **fixed** — Do not open account select dialog if there are no accounts
- **fixed** — Don't delete base directories when evicting metacache
- **fixed** — Don't remove old Microsoft accounts until they're successfully reauthenticated
- **fixed** — Fix Cmd+Q on macOS closing active window instead of quitting
- **fixed** — Fix Copy/Upload buttons not working in ScreenshotsPage
- **fixed** — Fix infinite loop in SkinManageDialog
- **fixed** — Fix memory leak and crash with data packs modal
- **fixed** — Fix offline accounts not being refreshed during launch
- **fixed** — Fix wrong Xbox failure string
- **fixed** — Remove trademark and special characters from instance folder names
- **fixed** — Fixed dependencies not enabling/disabling other dependencies
- **fixed** — Fixes for task abort logic
- **fixed** — Fixes to 'Use system locale'
- **fixed** — Fixes to PrismExternalUpdater
- **fixed** — NetJob: do not automatically retry on 404 Not Found response

Hi again!
In this new release we fixed a few bugs, we made offline mode more easy to use when authentication servers are down and we [fixed CurseForge support after July 16th](https://blog.curseforge.com/introducing-api-key-authentication-for-curseforge-file-downloads/).

Grab the latest download [here](https://prismlauncher.org/download), and read on to see the full list of changes.

#### Added

- Add modrinth headers for download source (standalone, modpack, dependency) by [@Trial97](https://github.com/Trial97) in [#5506](https://github.com/PrismLauncher/PrismLauncher/pull/5506)
- Log components in instance logs by [@Octol1ttle](https://github.com/Octol1ttle) in [#5560](https://github.com/PrismLauncher/PrismLauncher/pull/5560)

##### Changed

- Include Flame API key in CDN downloads by [@Octol1ttle](https://github.com/Octol1ttle) in [#5671](https://github.com/PrismLauncher/PrismLauncher/pull/5671)
- When auth is down, launch into offline mode by [@TayouVR](https://github.com/TayouVR) in [#5647](https://github.com/PrismLauncher/PrismLauncher/pull/5647)

##### Fixed

- AccountList: Skip refresh when !shouldRefresh by [@catfromplan9](https://github.com/catfromplan9) in [#5614](https://github.com/PrismLauncher/PrismLauncher/pull/5614)
- Do not open account select dialog if there are no accounts by [@Octol1ttle](https://github.com/Octol1ttle) in [#5535](https://github.com/PrismLauncher/PrismLauncher/pull/5535)
- Don't delete base directories when evicting metacache by [@Octol1ttle](https://github.com/Octol1ttle) in [#5513](https://github.com/PrismLauncher/PrismLauncher/pull/5513)
- Don't remove old Microslop accounts until they're successfully reauthenticated by [@Octol1ttle](https://github.com/Octol1ttle) in [#5620](https://github.com/PrismLauncher/PrismLauncher/pull/5620)
- Fix Cmd+Q on macOS closing active window instead of quitting by [@dannydjdk](https://github.com/dannydjdk) in [#5427](https://github.com/PrismLauncher/PrismLauncher/pull/5427)
- Fix Copy/Upload buttons not working in ScreenshotsPage by [@Octol1ttle](https://github.com/Octol1ttle) in [#5387](https://github.com/PrismLauncher/PrismLauncher/pull/5387)
- Fix infinite loop in SkinManageDialog by [@Octol1ttle](https://github.com/Octol1ttle) in [#5388](https://github.com/PrismLauncher/PrismLauncher/pull/5388)
- Fix memory leak and crash with data packs modal by [@TheKodeToad](https://github.com/TheKodeToad) in [#5551](https://github.com/PrismLauncher/PrismLauncher/pull/5551)
- Fix offline accounts not being refreshed during launch by [@Octol1ttle](https://github.com/Octol1ttle) in [#5542](https://github.com/PrismLauncher/PrismLauncher/pull/5542)
- Fix wrong Xbox failure string by [@Octol1ttle](https://github.com/Octol1ttle) in [#5492](https://github.com/PrismLauncher/PrismLauncher/pull/5492)
- Fix: Remove trademark and special characters from instance folder names by [@Trial97](https://github.com/Trial97) in [#5204](https://github.com/PrismLauncher/PrismLauncher/pull/5204)
- Fixed dependencies not enabling/disabling other dependencies by [@jzhou-dev](https://github.com/jzhou-dev) in [#5717](https://github.com/PrismLauncher/PrismLauncher/pull/5717)
- Fixes for task abort logic by [@0x189D7997](https://github.com/0x189D7997) in [#5415](https://github.com/PrismLauncher/PrismLauncher/pull/5415)
- Fixes to 'Use system locale' by [@Octol1ttle](https://github.com/Octol1ttle) in [#5485](https://github.com/PrismLauncher/PrismLauncher/pull/5485)
- Fixes to PrismExternalUpdater by [@Octol1ttle](https://github.com/Octol1ttle) in [#5486](https://github.com/PrismLauncher/PrismLauncher/pull/5486)
- Fixes to translations by [@Octol1ttle](https://github.com/Octol1ttle) in [#5512](https://github.com/PrismLauncher/PrismLauncher/pull/5512)
- Low RAM warning fixes by [@Octol1ttle](https://github.com/Octol1ttle) in [#5392](https://github.com/PrismLauncher/PrismLauncher/pull/5392)
- NetJob: do not automatically retry on `404 Not Found` response by [@0x189

_[Truncated at 4000 characters — full notes: https://github.com/PrismLauncher/PrismLauncher/releases/tag/11.0.3]_

### 11.0.2 — Prism Launcher 11.0.2

- Date: 2026-04-12
- Version: 11.0.2
- Original notes: https://github.com/PrismLauncher/PrismLauncher/releases/tag/11.0.2
- Permalink: https://whatsnew.fyi/product/prism-launcher/releases/11.0.2

- **fixed** — Updater no longer resets current task in finished signal

##### [MANUAL UPDATE REQUIRED] Prism Launcher Release 11.0.2

It seems we've made enough releases to subtly break our updater with the last release. This patch lets us go even further beyond.
Please manually update the launcher if you are on Windows, AppImage or Linux Portable.

Grab the latest download [here](https://prismlauncher.org/download/), and read on to see the full list of changes.

##### Changelog

You can also see the individual changes [here](https://github.com/PrismLauncher/PrismLauncher/compare/11.0.1...11.0.2).

##### Fixed

- Updater: Do not reset current task in finished signal [@Octol1ttle](https://github.com/Octol1ttle) in [#5370](https://github.com/PrismLauncher/PrismLauncher/pull/5370)

### 11.0.1 — Prism Launcher 11.0.1

- Date: 2026-04-12
- Version: 11.0.1
- Original notes: https://github.com/PrismLauncher/PrismLauncher/releases/tag/11.0.1
- Permalink: https://whatsnew.fyi/product/prism-launcher/releases/11.0.1

- **added** — Allow disabling low RAM warning
- **fixed** — Don't count JAR mods when checking offline libraries
- **fixed** — Fix build failing on 32 bit architectures
- **fixed** — Enable modpack changelog for Modrinth page
- **fixed** — Fix modpack upgrade

##### Prism Launcher 11.0.1 is Ready

Hello again everyone. As is usually the case, when a new release of a long running code base goes live the wider userbase can find more issues.

This is a patch release to fix a few fairly critical bugs with launching older Minecraft versions and fix Modpack updates. We've also restored the ability to view changelogs of Modrinth modpacks on the Instance's pack page.

#### Changelog

You can find a full list of changes here: https://github.com/PrismLauncher/PrismLauncher/compare/11.0.0...11.0.1

##### Added

- Allow disabling low RAM warning by [@Octol1ttle](https://github.com/Octol1ttle) in [#5333](https://github.com/PrismLauncher/PrismLauncher/pull/5333)

##### Fixed

- Don't count JAR mods when checking offline libraries by [@Octol1ttle](https://github.com/Octol1ttle) in [#5334](https://github.com/PrismLauncher/PrismLauncher/pull/5334)
- Fix build failing on 32 bit architectures by [@Octol1ttle](https://github.com/Octol1ttle) in [#5332](https://github.com/PrismLauncher/PrismLauncher/pull/5332)
- enable modpack changelog for modrinth page by [@Trial97](https://github.com/Trial97) in [#5354](https://github.com/PrismLauncher/PrismLauncher/pull/5354)
- fix modpack upgrade by [@Trial97](https://github.com/Trial97) in [#5345](https://github.com/PrismLauncher/PrismLauncher/pull/5345)

### 11.0.0 — Prism Launcher 11.0.0

- Date: 2026-04-09
- Version: 11.0.0
- Original notes: https://github.com/PrismLauncher/PrismLauncher/releases/tag/11.0.0
- Permalink: https://whatsnew.fyi/product/prism-launcher/releases/11.0.0

- **added** — Add CLI option to open main window when launching instance
- **added** — Add a development container
- **added** — Add back FTB modpack support
- **added** — Add back drag and dropping to screenshots page
- **added** — Add configurable option on ScrollMessageBox
- **added** — Add icons in settings account list
- **added** — Allow moving accounts in list
- **added** — Allow overriding URL for downloading legacy FML libs
- **added** — Ask before deleting saves as part of a Modpack update
- **added** — Highlight resources incompatible with the Minecraft version
- **added** — Add Javachecker support for ppc64 and ppc64le architectures
- **added** — Log OS, CPU, RAM and GPUs on all systems
- **added** — Mark accounts with errors in dropdown
- **added** — Print custom environment variables during instance launch
- **added** — Track dependencies in Mods page
- **added** — URL protocol modpack import for any encoded URL
- **added** — Updated Resource Pack Formats
- **added** — Warn user on launch if there is not enough available RAM
- **added** — Rework modrinth fallback for blocked mods
- **added** — Curseforge modpack downloading via binaryname:// uri
- **added** — IBM Semeru Runtime Open Edition support (openj9 jvm)
- **added** — Update local pack by URL
- **changed** — Cache news feed
- **changed** — Don't manually format UUIDs
- **changed** — Download game files during instance creation
- **changed** — Enable automatic update checking by default
- **changed** — Enable warnings as errors
- **changed** — Improve NetJob failure dialog
- **changed** — Make Minecraft resource URL override consistent with other overrides
- **changed** — Modrith API optional changelog
- **changed** — Refactor global C/CXX flags in CMake

Hello again!

Following a short hibernation ~~and a few unpublished releases~~, the Prism Launcher team is proud to announce **11.0!** 🍾

With it being ~3 months since 10.0, 11.0 is our fastest major release yet. But not to worry! We've been working on an awesome amount of features - and especially fixes! - for everybody to have some fun with. We even have a nice blogpost about it all: https://prismlauncher.org/news/release-11/

As always, feel free to grab the latest download [here](https://prismlauncher.org/download/) for your respective platform. Until next time! 🌈

#### Changelog

You can find a full list of changes here: https://github.com/PrismLauncher/PrismLauncher/compare/10.0.5...11.0.0

##### Added

- Add CLI option to open main window when launching instance by [@MatthewCash](https://github.com/MatthewCash) in [#5107](https://github.com/PrismLauncher/PrismLauncher/pull/5107)
- Add a development container by [@getchoo](https://github.com/getchoo) in [#5091](https://github.com/PrismLauncher/PrismLauncher/pull/5091)
- Add back FTB modpack support by [@Trial97](https://github.com/Trial97) in [#3559](https://github.com/PrismLauncher/PrismLauncher/pull/3559)
- Add back drag and dropping to screenshots page by [@leia-uwu](https://github.com/leia-uwu) in [#5300](https://github.com/PrismLauncher/PrismLauncher/pull/5300)
- Add configurable option on ScrollMessageBox by [@dsch7705](https://github.com/dsch7705) in [#4335](https://github.com/PrismLauncher/PrismLauncher/pull/4335)
- Add icons in settings account list by [@TheKodeToad](https://github.com/TheKodeToad) in [#4684](https://github.com/PrismLauncher/PrismLauncher/pull/4684)
- Allow moving accounts in list by [@Octol1ttle](https://github.com/Octol1ttle) in [#4647](https://github.com/PrismLauncher/PrismLauncher/pull/4647)
- Allow overriding URL for downloading legacy FML libs by [@Octol1ttle](https://github.com/Octol1ttle) in [#4862](https://github.com/PrismLauncher/PrismLauncher/pull/4862)
- Ask before deleting saves as part of a Modpack update by [@Trial97](https://github.com/Trial97) in [#4622](https://github.com/PrismLauncher/PrismLauncher/pull/4622)
- Highlight resources incompatible with the Minecraft version by [@TheKodeToad](https://github.com/TheKodeToad) in [#5010](https://github.com/PrismLauncher/PrismLauncher/pull/5010)
- Add Javachecker support for ppc64 and ppc64le architectures by [@runlevel5](https://github.com/runlevel5) in [#5212](https://github.com/PrismLauncher/PrismLauncher/pull/5212)
- Log OS, CPU, RAM and GPUs on all systems by [@Octol1ttle](https://github.com/Octol1ttle) in [#5169](https://github.com/PrismLauncher/PrismLauncher/pull/5169)
- Mark accounts with errors in dropdown by [@Octol1ttle](https://github.com/Octol1ttle) in [#5181](https://github.com/PrismLauncher/PrismLauncher/pull/5181)
- Print custom environment variables during instance launch by [@Octol1ttle](https://github.com/Octol1ttle) in [#4832](https://github.com/PrismLauncher/PrismLauncher/pull/4832)
- Track dependencies in Mods page by [@Trial97](https://github.com/Trial97) in [#3738](https://github.com/PrismLauncher/PrismLauncher/pull/3738)
- URL protocol modpack import for any encoded URL by [@Dan4oby](https://github.com/Dan4oby) in [#4990](https://github.com/PrismLauncher/PrismLauncher/pull/4990)
- Updated Resource Pack Formats by [@Trial97](https://github.com/Trial97) in [#5199](https://github.com/PrismLauncher/PrismLauncher/pull/5199)
- Warn user on launch if there is not enough available RAM by [@Octol1ttle](https://github.com/Octol1ttle) in [#5249](https://github.com/PrismLauncher/PrismLauncher/pull/5249)
- Rework modrinth fallback for blocked mods a bit by [@DioEgizio](https://github.com/DioEgizio) in [#4499](https://github.com/PrismLauncher/PrismLauncher/pull/4499)
- Curseforge modpack downloading via binaryname:// uri by [@2lay](https://github.com/2lay) in [#4872](https://github.com/PrismLauncher/PrismLauncher/pull/4872)
- IBM Semeru Ru

_[Truncated at 4000 characters — full notes: https://github.com/PrismLauncher/PrismLauncher/releases/tag/11.0.0]_