v4.5.0

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

Author: texodus

CHANGELOG.md

@@ -1,3 +1,30 @@
+# [v4.5.0](https://github.com/perspective-dev/perspective/releases/tag/v4.5.0)
+
+_21 May 2026_ ([Full changelog](https://github.com/finos/perspective/compare/v4.4.1...v4.5.0))
+
+**Breaking**
+
+- New plugin API, `viewer-charts` features, replace `@perspective-dev/viewer-openlayers` [#3176](https://github.com/finos/perspective/pull/3176)
+- Rename `@perspective-dev/viewer-charts`, add missing chart types [#3166](https://github.com/finos/perspective/pull/3166)
+
+Features
+
+- Add `coalesce` [#3172](https://github.com/finos/perspective/pull/3172)
+- Multi-chart rendering for `@perspective-dev/charts` [#3168](https://github.com/finos/perspective/pull/3168)
+- Add `View::with_typed_arrays` API [#3165](https://github.com/finos/perspective/pull/3165)
+
+Fixes
+
+- Fix `expressions` memory leak [#3177](https://github.com/finos/perspective/pull/3177)
+- Fix multi-batch Arrow null validity bug [#3171](https://github.com/finos/perspective/pull/3171)
+- Fix Safari rendering bug [#3162](https://github.com/finos/perspective/pull/3162)
+- Fix multi-column aggregates by expressions [#3161](https://github.com/finos/perspective/pull/3161)
+
+Misc
+
+- Update security docs [#3173](https://github.com/finos/perspective/pull/3173)
+- Add WebGL chart plugin with scatter, line, and treemap [#3160](https://github.com/finos/perspective/pull/3160)
+
 # [v4.4.1](https://github.com/perspective-dev/perspective/releases/tag/v4.4.1)
 
 _14 April 2026_ ([Full changelog](https://github.com/finos/perspective/compare/v4.4.0...v4.4.1))

Cargo.lock

@@ -1,6 +1,6 @@
 {
     "name": "@perspective-dev/docs",
-    "version": "4.4.1",
+    "version": "4.5.0",
     "private": true,
     "type": "module",
     "scripts": {

docs/package.json

@@ -1,7 +1,7 @@
 {
     "name": "blocks",
     "private": true,
-    "version": "4.4.1",
+    "version": "4.5.0",
     "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": "4.4.1",
+            "version": "4.5.0",
             "plugin": "Datagrid",
             "plugin_config": {
                 "columns": {},
@@ -64,7 +64,7 @@
             "settings": false
         },
         "PERSPECTIVE_GENERATED_ID_1": {
-            "version": "4.4.1",
+            "version": "4.5.0",
             "plugin": "Y Area",
             "plugin_config": {},
             "columns_config": {},
@@ -82,7 +82,7 @@
             "aggregates": {}
         },
         "PERSPECTIVE_GENERATED_ID_2": {
-            "version": "4.4.1",
+            "version": "4.5.0",
             "plugin": "Y Line",
             "plugin_config": {},
             "columns_config": {},

examples/blocks/src/dataset/layout.json

@@ -97,7 +97,7 @@
         "aggregates": { "bucket(\"timestamp\", 'm')": "dominant" }
     },
     {
-        "version": "4.4.1",
+        "version": "4.5.0",
         "columns_config": {
             "Diff from market open": {
                 "number_fg_mode": "bar",
@@ -140,7 +140,7 @@
         "aggregates": {}
     },
     {
-        "version": "4.4.1",
+        "version": "4.5.0",
         "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": "4.4.1",
+    "version": "4.5.0",
     "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": "4.4.1",
+    "version": "4.5.0",
     "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": "4.4.1",
+    "version": "4.5.0",
     "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": "4.4.1",
+    "version": "4.5.0",
     "description": "An example of 2 Perspectives, one client and one server, streaming via Apache Arrow.",
     "scripts": {
         "start": "node build.js && node server/index.mjs"