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description: Toolbox App 3.7 enables JVM memory optimizations by default across all operating systems, tuning memory management, code-cache behavior, and garbage collection...
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# Toolbox App 3.7: JVM Memory Optimizations and Update Improvements

**[JetBrains](https://daily.dev/sources/jetbrains)** · 2 min read · 1 upvotes · 0 comments

## Summary

Toolbox App 3.7 enables JVM memory optimizations by default across all operating systems, tuning memory management, code-cache behavior, and garbage collection without configuration. The release also fixes compatibility with Windows Smart App Control, improves patch update reliability on macOS by verifying code signatures, ensures reliable IDE installation on macOS 27, and addresses one cause of premature session expiration notifications. Users on Toolbox App 3.4 or earlier for Windows must update to v3.7 or later to keep signing in to their JetBrains Account, since older versions may fail to store or refresh current credentials.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://blog.jetbrains.com/toolbox-app/2026/08/toolbox-app-3-7-jvm-memory-optimizations-and-update-improvements>

## Questions this post answers

### Do I need to update JetBrains Toolbox App on Windows to keep signing in to my JetBrains Account?

Yes, if running Toolbox App 3.4 or earlier on Windows, upgrading to 3.7 or later is required to keep signing in. Older versions may be unable to store or refresh the credentials currently used by some JetBrains services, which can block authentication until updated.

_Track required tool updates like this Toolbox App change so account sign-in never breaks unexpectedly, via daily.dev._

### What does JVM memory optimization by default mean in JetBrains Toolbox App 3.7?

It means Toolbox App 3.7 automatically tunes memory management, code-cache behavior, and garbage collection for the JVM on all operating systems without requiring any manual configuration. Previously this tuning likely required manual setup; now it applies out of the box for IDEs launched through Toolbox.

_Developers tuning JVM performance can follow daily.dev for changes like this default memory optimization update._

### Why does JetBrains Toolbox App fail to launch on Windows with Smart App Control enabled?

Older versions of Toolbox App had a compatibility issue that prevented correct launching when Windows Smart App Control was enabled. This has been fixed in Toolbox App 3.7, allowing the app to launch correctly under that Windows security feature.

_Windows developers hitting Smart App Control conflicts can watch for fixes like this one on daily.dev._

## Similar posts on daily.dev

- [Toolbox App 3.5: Better Remote Development Observability, More Reliable Enterprise Configuration, and Smoother Everyday Interactions](https://daily.dev/posts/toolbox-app-3-5-better-remote-development-observability-more-reliable-enterprise-configuration-an-ypq9ejglu) · JetBrains · 0 upvotes · 0 comments
- [Toolbox App 3.6: Smarter Storage Cleanup, Windows installation diagnostics, and More](https://daily.dev/posts/toolbox-app-3-6-smarter-storage-cleanup-windows-installation-diagnostics-and-more-x09khdjkm) · JetBrains · 4 upvotes · 0 comments
- [Toolbox App 3.8: Improves IDE Update Handling on macOS and Fixes Keyboard Navigation](https://daily.dev/posts/toolbox-app-3-8-improves-ide-update-handling-on-macos-and-fixes-keyboard-navigation-hopxinjin) · JetBrains · 0 upvotes · 0 comments
- [Toolbox App 3.4: Remote IDE Lifecycle Hooks, macOS Fullscreen Fix, UTF-8 Support, and More](https://daily.dev/posts/toolbox-app-3-4-remote-ide-lifecycle-hooks-macos-fullscreen-fix-utf-8-support-and-more-pfxik3e5u) · JetBrains · 0 upvotes · 0 comments

---

Tags: [#windows](https://daily.dev/tags/windows), [#mac](https://daily.dev/tags/mac), [#jvm](https://daily.dev/tags/jvm)

[View this post on daily.dev](https://daily.dev/posts/toolbox-app-3-7-jvm-memory-optimizations-and-update-improvements-zc6kr8zzu)

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