T4rk1n · Oct 29, 2026 · Oct 29, 2026 · Oct 29, 2026
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -2,7 +2,7 @@
 All notable changes to `dash` will be documented in this file.
 This project adheres to [Semantic Versioning](https://semver.org/).
 
-## [Unreleased]
+## [4.5.0] - 2026-10-29
 
 ### Added
 - [#4099](https://github.com/plotly/dash/pull/4099) Streaming callbacks over HTTP now require shared storage and fail at server setup without it, instead of falling back to one connection per stream; WebSocket streaming callbacks do not need it.
@@ -16,14 +16,14 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 - [#3931](https://github.com/plotly/dash/pull/3931) Add streaming callbacks: an `async def` generator callback streams its yields to the browser as they are produced (`dash.Patch` yields apply incrementally). A browser's streams share one SharedWorker-hosted connection so they do not count against the per-host connection limit; closing a tab cancels its streams.
 - [#3977](https://github.com/plotly/dash/pull/3977) Add partial WebSocket prop reads with `get_prop(..., path=...)`. Closes [#3975](https://github.com/plotly/dash/issues/3975).
 - [#3765](https://github.com/plotly/dash/pull/3765) Add opt-in partial pattern matching for callback `Input`, `Output`, and `State` via `partial_pattern=True`, so dictionary ID patterns can match component IDs with extra keys and combine with `ALL`/`MATCH` wildcards. Fixes [#3764](https://github.com/plotly/dash/issues/3764).
-- [#3646](https://github.com/plotly/dash/pull/3646) Add experimental support for React 19 (default stays React 18.3.1); opt in with `REACT_VERSION=19.2.4` or `dash._dash_renderer._set_react_version("19.2.4")`. Dash serves the [`umd-react`](https://www.npmjs.com/package/umd-react) package with a compatibility shim so component libraries built against React <=18 keep working; see `.ai/ARCHITECTURE.md`.
+- [#3880](https://github.com/plotly/dash/pull/3880) Add experimental support for React 19 (default stays React 18.3.1); opt in with `REACT_VERSION=19.2.4` or `dash._dash_renderer._set_react_version("19.2.4")`. Dash serves the [`umd-react`](https://www.npmjs.com/package/umd-react) package with a compatibility shim so component libraries built against React <=18 keep working; see `.ai/ARCHITECTURE.md`.
 - [#3925](https://github.com/plotly/dash/pull/3925) Add optional callback request payload compression via `compress_payload` and `compress_threshold` callback parameters (default threshold 5,000 bytes), sending gzip payloads that Dash decompresses on Flask, FastAPI, and Quart. Fixes [#3924](https://github.com/plotly/dash/issues/3924).
 - [#3961](https://github.com/plotly/dash/pull/3961) Added cursor position data (`xPixel`, `yPixel`) to `dcc.Graph` `hoverData` and `clickData` when `hoveranywhere` or `clickanywhere` is enabled in the figure.
 - [#3960](https://github.com/plotly/dash/pull/3960) Rewrite `dcc.Markdown` and `dcc.Link` as Typescript components
 - [#3881](https://github.com/plotly/dash/pull/3881) Added `dash.remount`, a wrapper for a callback-returned component that forces the renderer to remount it (resetting its internal state) instead of reconciling in place: the explicit way to reset a stateful component from a callback without changing its `id`.
 
 ### Removed
-- [#3646](https://github.com/plotly/dash/pull/3646) Remove React 16 support (`16.14.0` is no longer an accepted value for `REACT_VERSION` / `_set_react_version`).
+- [#3880](https://github.com/plotly/dash/pull/3880) Remove React 16 support (`16.14.0` is no longer an accepted value for `REACT_VERSION` / `_set_react_version`).
 - [#4039](https://github.com/plotly/dash/pull/4039) Remove unnecessary Python version checks (pre 3.9).
 
 ### Changed
@@ -49,20 +49,23 @@ This project adheres to [Semantic Versioning](https://semver.org/).
 - [#3941](https://github.com/plotly/dash/pull/3941) Fix the FastAPI and Quart backends opening a WebSocket connection on every page load even for apps with no WebSocket callbacks; the socket now opens only when actually needed. Fixes [#3939](https://github.com/plotly/dash/issues/3939).
 - [#3916](https://github.com/plotly/dash/pull/3916) Fixed a regression where dragging multiple files into `dcc.Upload` would upload only the first file when `multiple=True`
 - [#3922](https://github.com/plotly/dash/pull/3922) Fix `dcc.Input(type="number")` stepper behavior when only `min` is set.
-- [#3925](https://github.com/plotly/dash/pull/3925) Use the proxied url as the Jupyter server url so `DASH_PROXY` is honored by the external url and inline iframe in notebooks.
+- [#3936](https://github.com/plotly/dash/pull/3936) Use the proxied url as the Jupyter server url so `DASH_PROXY` is honored by the external url and inline iframe in notebooks. Fixes [#3401](https://github.com/plotly/dash/issues/3401).
 - [#3938](https://github.com/plotly/dash/pull/3938) Fix `dcc.Patch()` re-running the initial callbacks of components already on the page (including every `MATCH`/`ALL` element) and wiping their user-edited persisted values. Fixes [#3681](https://github.com/plotly/dash/issues/3681) and [#3937](https://github.com/plotly/dash/issues/3937)
 - [#3960](https://github.com/plotly/dash/pull/3960) Fix `dcc.Markdown` not rendering `<dccLink />` by using newer dependencies
-- [#3846](https://github.com/plotly/dash/issues/3846) Fix callback-returned children being unmounted and remounted on every update instead of reconciled in place, which reset component state and slowed large subtrees 3-4x (regression introduced in 4.2.0 by [#3570](https://github.com/plotly/dash/pull/3570)); use `dash.remount` to force a remount.
+- [#3881](https://github.com/plotly/dash/pull/3881) Fix callback-returned children being unmounted and remounted on every update instead of reconciled in place, which reset component state and slowed large subtrees 3-4x (regression introduced in 4.2.0 by [#3570](https://github.com/plotly/dash/pull/3570)); use `dash.remount` to force a remount. Fixes [#3846](https://github.com/plotly/dash/issues/3846).
 - [#3881](https://github.com/plotly/dash/pull/3881) Fix components rendered as props (eg. `dcc.Dropdown` option labels, `dcc.Tab` labels) crashing or failing to update when the host subtree was replaced by a callback; out-of-tree `ExternalWrapper` components now re-insert themselves and update in place.
-- [#3929](https://github.com/plotly/dash/issues/3929) Fix components that set their own initial state on mount (eg. `dash-bootstrap-components` `Tabs`) not applying it on first render, because descendant layout hashes were reset on the first fresh render (regression introduced in 4.2.0 by [#3570](https://github.com/plotly/dash/pull/3570)).
-- [#3948](https://github.com/plotly/dash/issues/3948) Fix page getting progressively slower as callbacks append children
+- [#3881](https://github.com/plotly/dash/pull/3881) Fix components that set their own initial state on mount (eg. `dash-bootstrap-components` `Tabs`) not applying it on first render, because descendant layout hashes were reset on the first fresh render (regression introduced in 4.2.0 by [#3570](https://github.com/plotly/dash/pull/3570)). Fixes [#3929](https://github.com/plotly/dash/issues/3929).
+- [#3948](https://github.com/plotly/dash/pull/3948) Fix page getting progressively slower as callbacks append children.
+- [#3915](https://github.com/plotly/dash/pull/3915) Fix MCP tool results erroring when a figure cannot be rendered to an image (eg. Kaleido without Chrome); the image is now skipped. Fixes [#3914](https://github.com/plotly/dash/issues/3914).
+- [#3621](https://github.com/plotly/dash/pull/3621) Fix component generation crashing when the path to `extract-meta.js` contains a space.
+- [#3895](https://github.com/plotly/dash/pull/3895) Component generation errors from `extract-meta.js` now name the file, prop path and line where they originate. Fixes [#3362](https://github.com/plotly/dash/issues/3362).
 - [#4014](https://github.com/plotly/dash/pull/4014) Disable autocomplete in DatePickerSingle and DatePickerRange inputs. Fixes [#4009](https://github.com/plotly/dash/issues/4009).
 - [#4007](https://github.com/plotly/dash/pull/4007) Fix page loads failing with a 500 error on Windows when Dash is imported from an extended-length (`\\?\`) path, as in JupyterLab Desktop. Package resource paths are now joined with the OS separator instead of `/`. Fixes [#3002](https://github.com/plotly/dash/issues/3002).
 - [#4023](https://github.com/plotly/dash/pull/4023) Fix extra callback registrations when an app runs from the parent directory: `python app/app.py`, where the script shares its folder's name, registered its callbacks twice, and `python app/main.py` imported a sibling `app/app.py` as the parent package and registered its callbacks too (regression introduced in 4.4.1 by [#3883](https://github.com/plotly/dash/pull/3883)). Fixes [#4011](https://github.com/plotly/dash/issues/4011).
 - [#4057](https://github.com/plotly/dash/pull/4057) Fixed background callbacks to update `set_props` instead of replacing. Fixes [#3104](https://github.com/plotly/dash/issues/3104).
 - [#3923](https://github.com/plotly/dash/pull/3923) Fix a blank page and `SyntaxError` in the browser when a dict component ID has a dot in one of its values. Fixes [#3480](https://github.com/plotly/dash/issues/3480).
 - [#4074](https://github.com/plotly/dash/pull/4074) Fix Pages passing percent-encoded path variables to `layout` and `title`, and the 404 page for paths with spaces or non-ASCII characters. Fixes [#2360](https://github.com/plotly/dash/issues/2360).
-- [#4012](https://github.com/plotly/dash/pull/4012) Fix `InvalidCallbackReturnValue` raised when a no-output background callback's error handler returns `None` (or the job is cancelled), by treating `None` returns from error handlers and the cancelled-job branch the same way — as `NoUpdate()` only when there are outputs, `None` otherwise. Fixes [#3628](https://github.com/plotly/dash/issues/3628).
+- [#4012](https://github.com/plotly/dash/pull/4012) Fix `InvalidCallbackReturnValue` raised when a no-output background callback's error handler returns `None` (or the job is cancelled), by treating `None` returns from error handlers and the cancelled-job branch the same way: `NoUpdate()` only when there are outputs, `None` otherwise. Fixes [#3628](https://github.com/plotly/dash/issues/3628).
 
 ## [4.4.1] - 2026-07-21
 

diff --git a/components/dash-core-components/package-lock.json b/components/dash-core-components/package-lock.json
diff --git a/components/dash-core-components/package.json b/components/dash-core-components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "dash-core-components",
-  "version": "4.5.2",
+  "version": "4.5.3",
   "description": "Core component suite for Dash",
   "repository": {
     "type": "git",

diff --git a/components/dash-html-components/package-lock.json b/components/dash-html-components/package-lock.json
diff --git a/components/dash-html-components/package.json b/components/dash-html-components/package.json
@@ -1,6 +1,6 @@
 {
   "name": "dash-html-components",
-  "version": "4.5.2",
+  "version": "4.5.3",
   "description": "Vanilla HTML components for Dash",
   "main": "lib/index.js",
   "repository": {

diff --git a/components/dash-table/package-lock.json b/components/dash-table/package-lock.json
diff --git a/components/dash-table/package.json b/components/dash-table/package.json
@@ -1,6 +1,6 @@
 {
   "name": "dash-table",
-  "version": "7.5.2",
+  "version": "7.5.3",
   "description": "Dash table",
   "repository": {
     "type": "git",

diff --git a/dash/_dash_renderer.py b/dash/_dash_renderer.py
@@ -1,7 +1,7 @@
 import os
 from typing import Any, List, Dict
 
-__version__ = "3.5.2"
+__version__ = "3.5.3"
 
 _available_react_versions = {"18.3.1", "18.2.0", "19.2.4"}
 _available_reactdom_versions = {"18.3.1", "18.2.0", "19.2.4"}
@@ -85,7 +85,7 @@ def _set_react_version(v_react, v_reactdom=None):
     {
         "relative_package_path": "dash-renderer/build/dash_renderer.min.js",
         "dev_package_path": "dash-renderer/build/dash_renderer.dev.js",
-        "external_url": "https://unpkg.com/dash-renderer@3.5.2"
+        "external_url": "https://unpkg.com/dash-renderer@3.5.3"
         "/build/dash_renderer.min.js",
         "namespace": "dash",
     },

diff --git a/dash/dash-renderer/package-lock.json b/dash/dash-renderer/package-lock.json
diff --git a/dash/dash-renderer/package.json b/dash/dash-renderer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "dash-renderer",
-  "version": "3.5.2",
+  "version": "3.5.3",
   "description": "render dash components in react",
   "main": "build/dash_renderer.min.js",
   "scripts": {

diff --git a/dash/version.py b/dash/version.py
@@ -1 +1 @@
-__version__ = "4.5.0rc2"
+__version__ = "4.5.0"