stack.pulse
#stacks/mobx/state

MobX release notes, breaking changes, and upgrade notes.

Simple, scalable state management through reactive programming StackPulse turns upstream changelogs into scannable summaries with risky changes, deprecations, migration notes, and source links.

releases
5
breaking
0
security
0
deprecated
1
migrations
0

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what stackpulse tracks

MobX releases from GitHub

StackPulse watches MobX release notes and keeps the original source link close to every summary.

upgrade risk

Breaking changes and deprecations

Risky changes are separated from normal feature notes so you can scan upgrade impact before changing production dependencies.

migration notes

Source-backed next steps

Migration steps and recommended actions are only shown when the upstream release notes support them.

# latest_releases

source-backed
mobx@6.16.1mediumdeprecationfeatureJun 8, 2026

mobx@6.16.1

This patch release fixes a Stage 3 `@computed` override issue and removes outdated Flow typechecker support artifacts.

affected

Developers using `@computed` overrides with `super` delegation or relying on Flow typechecker artifacts are affected.

action

Update to version 6.16.1 to resolve the `@computed` override issue and clean up outdated artifacts.

view source on github->
mobx-undecorate@1.3.1lowJun 3, 2026

mobx-undecorate@1.3.1

This patch release fixes an issue with CLI resolution of the bundled jscodeshift binary when dependencies are hoisted by npm workspaces.

affected

Users relying on npm workspaces with hoisted dependencies may be affected by CLI resolution issues.

action

Update to version 1.3.1 to resolve CLI resolution issues.

view source on github->
mobx@6.16.0highfeatureJun 3, 2026

mobx@6.16.0

This release introduces lazy initialization for `@computed` and `@observable accessor` decorators, significantly reducing memory usage and construction time for unused properties. It also fixes a regression with `isComputedProp` and adds `getOrInsert` methods to `ObservableMap` for better compatibility with ESNext `Map` typings.

affected

Developers using `@computed` or `@observable accessor` decorators in large-scale applications will benefit from reduced memory usage and faster construction times.

action

Upgrade to version 6.16.0 to take advantage of the performance improvements and compatibility enhancements.

release_signals
+Lazy initialization for `@computed` decorator, reducing memory and construction time
+Lazy initialization for `@observable accessor` decorator, further optimizing memory and construction time
+Added `getOrInsert` and `getOrInsertComputed` methods to `ObservableMap` for ESNext `Map` compatibility
view source on github->
mobx-react@9.2.2lowfeatureMay 25, 2026

mobx-react@9.2.2

This release addresses a minor issue related to Babel-generated React version parsing output to avoid Rolldown invalid PURE annotation warnings.

affected

Developers using Babel with Rolldown may encounter fewer warnings related to PURE annotations.

action

Update to version 9.2.2 to resolve Rolldown PURE annotation warnings.

view source on github->
mobx@6.15.4lowMay 24, 2026

mobx@6.15.4

This patch release addresses a minor issue related to Babel-generated optional chaining output, avoiding Rolldown invalid PURE annotation warnings.

affected

Developers using Rolldown with Babel-generated optional chaining output may be affected.

action

Update to this version to avoid Rolldown warnings.

view source on github->