v4.5.2

Signed-off-by: Andrew Stein <steinlink@gmail.com>

Author: texodus

CHANGELOG.md

@@ -1,3 +1,17 @@
+# [v4.5.2](https://github.com/perspective-dev/perspective/releases/tag/v4.5.2)
+
+_9 July 2026_ ([Full changelog](https://github.com/finos/perspective/compare/v4.5.1...v4.5.2))
+
+Features
+
+- PEP 783 (pypi emscripten wheels) [#3191](https://github.com/finos/perspective/pull/3191)
+- Add `page_to_disk` option, disk-backed columns via OPFS, `mmap` or `node:fs`. [#3185](https://github.com/finos/perspective/pull/3185)
+
+Fixes
+
+- Fix `viewer-charts` context sharing and misc bugs [#3190](https://github.com/finos/perspective/pull/3190)
+- Fix memory safety issues [#3188](https://github.com/finos/perspective/pull/3188)
+
 # [v4.5.1](https://github.com/perspective-dev/perspective/releases/tag/v4.5.1)
 
 _30 May 2026_ ([Full changelog](https://github.com/finos/perspective/compare/v4.5.0...v4.5.1))

Cargo.lock

@@ -1,6 +1,6 @@
 {
     "name": "@perspective-dev/docs",
-    "version": "4.5.1",
+    "version": "4.5.2",
     "private": true,
     "type": "module",
     "scripts": {

docs/package.json

@@ -1,7 +1,7 @@
 {
     "name": "blocks",
     "private": true,
-    "version": "4.5.1",
+    "version": "4.5.2",
     "description": "A collection of simple client-side Perspective examples for `http://bl.ocks.org`.",
     "scripts": {
         "start": "mkdir -p dist && node --experimental-modules server.mjs",

examples/blocks/package.json

@@ -33,7 +33,7 @@
     },
     "viewers": {
         "PERSPECTIVE_GENERATED_ID_0": {
-            "version": "4.5.1",
+            "version": "4.5.2",
             "plugin": "Datagrid",
             "plugin_config": {
                 "columns": {},
@@ -64,7 +64,7 @@
             "settings": false
         },
         "PERSPECTIVE_GENERATED_ID_1": {
-            "version": "4.5.1",
+            "version": "4.5.2",
             "plugin": "Y Area",
             "plugin_config": {},
             "columns_config": {},
@@ -82,7 +82,7 @@
             "aggregates": {}
         },
         "PERSPECTIVE_GENERATED_ID_2": {
-            "version": "4.5.1",
+            "version": "4.5.2",
             "plugin": "Y Line",
             "plugin_config": {},
             "columns_config": {},

examples/blocks/src/dataset/layout.json

@@ -97,7 +97,7 @@
         "aggregates": { "bucket(\"timestamp\", 'm')": "dominant" }
     },
     {
-        "version": "4.5.1",
+        "version": "4.5.2",
         "columns_config": {
             "Diff from market open": {
                 "number_fg_mode": "bar",
@@ -140,7 +140,7 @@
         "aggregates": {}
     },
     {
-        "version": "4.5.1",
+        "version": "4.5.2",
         "columns_config": {
             "if(\"side\"=='buy'){-1}else{1}": {
                 "aggregate_depth": 1,

examples/blocks/src/market/layouts.json

@@ -1,7 +1,7 @@
 {
     "name": "esbuild-clickhouse-virtual",
     "private": true,
-    "version": "4.5.1",
+    "version": "4.5.2",
     "type": "module",
     "description": "Example of a custom VirtualServer for ClickHouse running in a Web Worker",
     "scripts": {

examples/esbuild-clickhouse-virtual/package.json

@@ -1,7 +1,7 @@
 {
     "name": "esbuild-duckdb-virtual",
     "private": true,
-    "version": "4.5.1",
+    "version": "4.5.2",
     "type": "module",
     "description": "Example of a custom VirtualServer running in a Web Worker",
     "scripts": {

examples/esbuild-duckdb-virtual/package.json

@@ -1,7 +1,7 @@
 {
     "name": "esbuild-example",
     "private": true,
-    "version": "4.5.1",
+    "version": "4.5.2",
     "description": "An esbuild example app built using `@perspective-dev/viewer`.",
     "scripts": {
         "build": "node build.js",

examples/esbuild-example/package.json

@@ -1,7 +1,7 @@
 {
     "name": "esbuild-remote",
     "private": true,
-    "version": "4.5.1",
+    "version": "4.5.2",
     "description": "An example of 2 Perspectives, one client and one server, streaming via Apache Arrow.",
     "scripts": {
         "start": "node build.js && node server/index.mjs"