diff --git a/CHANGELOG.md b/CHANGELOG.md
index e221176b22..5fefb17afc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,18 @@
 > The early pre-release track was abandoned due to build incompatibility problems.
 release info (#2491))
 
+### v4.0.0-alpha.8
+
+- Update supported-features.md (#2525)
+- chore(tile-converter): preprocess stage for I3SConverter (#2520)
+- chore(tile-converter): i3s-converter - mitigate "tiles" module dependency (#2517)
+- chore(3d-tiles): tile content type (#2516)
+- feat(i3s): Add an option to multiply colors by attribute (#2519)
+- feat(tile-converter): support attributes data from textures (#2511)
+- chore(3d-tiles): improve JSON types (#2509)
+- chore(slpk): slpk mode for server implemented (#2486)
+- fix(tile-converter): node workers error (#2504)
+
 ### v4.0.0-alpha.7
 
 - fix(tile-converter): reject POINT mesh type (#2501)
diff --git a/lerna.json b/lerna.json
index 012eea79b7..46bbf7e4ae 100644
--- a/lerna.json
+++ b/lerna.json
@@ -1,6 +1,6 @@
 {
   "lerna": "2.9.1",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "command": {
     "publish": {},
     "bootstrap": {}
diff --git a/modules/3d-tiles/package.json b/modules/3d-tiles/package.json
index 1ff8a547c6..c983466936 100644
--- a/modules/3d-tiles/package.json
+++ b/modules/3d-tiles/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/3d-tiles",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "3D Tiles, an open standard for streaming massive heterogeneous 3D geospatial datasets.",
   "license": "MIT",
   "publishConfig": {
@@ -34,11 +34,11 @@
     "build-bundle": "esbuild src/bundle.ts --bundle --outfile=dist/dist.min.js"
   },
   "dependencies": {
-    "@loaders.gl/draco": "4.0.0-alpha.7",
-    "@loaders.gl/gltf": "4.0.0-alpha.7",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/math": "4.0.0-alpha.7",
-    "@loaders.gl/tiles": "4.0.0-alpha.7",
+    "@loaders.gl/draco": "4.0.0-alpha.8",
+    "@loaders.gl/gltf": "4.0.0-alpha.8",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/math": "4.0.0-alpha.8",
+    "@loaders.gl/tiles": "4.0.0-alpha.8",
     "@math.gl/core": "^3.5.1",
     "@math.gl/geospatial": "^3.5.1",
     "long": "^5.2.1"
diff --git a/modules/arrow/package.json b/modules/arrow/package.json
index 24728168dc..942d687f81 100644
--- a/modules/arrow/package.json
+++ b/modules/arrow/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/arrow",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Simple columnar table loader for the Apache Arrow format",
   "license": "MIT",
   "publishConfig": {
@@ -39,8 +39,8 @@
     "build-worker2": "esbuild src/workers/arrow-worker.ts --bundle --outfile=dist/arrow-worker.js --platform=browser --external:{stream}"
   },
   "dependencies": {
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
     "apache-arrow": "^9.0.0"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
diff --git a/modules/bson/package.json b/modules/bson/package.json
index 8d72a6755c..e72e4522c6 100644
--- a/modules/bson/package.json
+++ b/modules/bson/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/bson",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loader for JSON and streaming JSON formats",
   "license": "MIT",
   "publishConfig": {
@@ -34,9 +34,9 @@
     "build-bundle": "esbuild src/bundle.ts --bundle --outfile=dist/dist.min.js"
   },
   "dependencies": {
-    "@loaders.gl/gis": "4.0.0-alpha.7",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
+    "@loaders.gl/gis": "4.0.0-alpha.8",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
     "@types/bson": "4.2.0",
     "bson": "4.2.0"
   },
diff --git a/modules/compression/package.json b/modules/compression/package.json
index 49962f1802..0dee8c129e 100644
--- a/modules/compression/package.json
+++ b/modules/compression/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/compression",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Decompression and compression plugins for loaders.gl",
   "license": "MIT",
   "publishConfig": {
@@ -39,8 +39,8 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.3.1",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/worker-utils": "4.0.0-alpha.7",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/worker-utils": "4.0.0-alpha.8",
     "@types/brotli": "^1.3.0",
     "@types/pako": "^1.0.1",
     "fflate": "0.7.4",
diff --git a/modules/core/package.json b/modules/core/package.json
index 016a3c64a8..52ac835cfa 100644
--- a/modules/core/package.json
+++ b/modules/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/core",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "The core API for working with loaders.gl loaders and writers",
   "license": "MIT",
   "publishConfig": {
@@ -43,8 +43,8 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.3.1",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/worker-utils": "4.0.0-alpha.7",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/worker-utils": "4.0.0-alpha.8",
     "@probe.gl/log": "^4.0.2"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
diff --git a/modules/crypto/package.json b/modules/crypto/package.json
index af4e7510f2..e05d4111c1 100644
--- a/modules/crypto/package.json
+++ b/modules/crypto/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/crypto",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Cryptographic/hashing plugins for loaders.gl",
   "license": "MIT",
   "publishConfig": {
@@ -34,8 +34,8 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.3.1",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/worker-utils": "4.0.0-alpha.7",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/worker-utils": "4.0.0-alpha.8",
     "@types/crypto-js": "^4.0.2"
   },
   "devDependencies": {
diff --git a/modules/csv/package.json b/modules/csv/package.json
index 9d692f1500..831c525152 100644
--- a/modules/csv/package.json
+++ b/modules/csv/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/csv",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loader for CSV and DSV table formats",
   "license": "MIT",
   "publishConfig": {
@@ -30,8 +30,8 @@
     "build-bundle": "esbuild src/bundle.ts --bundle --outfile=dist/dist.min.js"
   },
   "dependencies": {
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7"
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8"
   },
   "devDependencies": {
     "d3-dsv": "^1.2.0"
diff --git a/modules/draco/package.json b/modules/draco/package.json
index b4bd33e336..61a19dfd31 100644
--- a/modules/draco/package.json
+++ b/modules/draco/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/draco",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loader and writer for Draco compressed meshes and point clouds",
   "license": "MIT",
   "publishConfig": {
@@ -42,13 +42,13 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.3.1",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
-    "@loaders.gl/worker-utils": "4.0.0-alpha.7",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
+    "@loaders.gl/worker-utils": "4.0.0-alpha.8",
     "draco3d": "1.5.5"
   },
   "devDependencies": {
-    "@loaders.gl/polyfills": "4.0.0-alpha.7"
+    "@loaders.gl/polyfills": "4.0.0-alpha.8"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
 }
diff --git a/modules/excel/package.json b/modules/excel/package.json
index 0ec5822e85..bac5642ca9 100644
--- a/modules/excel/package.json
+++ b/modules/excel/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/excel",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loader for Excel files",
   "license": "MIT",
   "publishConfig": {
@@ -35,8 +35,8 @@
     "build-worker": "esbuild src/workers/excel-worker.ts --bundle --outfile=dist/excel-worker.js --define:__VERSION__=\\\"$npm_package_version\\\""
   },
   "dependencies": {
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
     "xlsx": "^0.17.0"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
diff --git a/modules/flatgeobuf/package.json b/modules/flatgeobuf/package.json
index 097350c10a..5950d31b84 100644
--- a/modules/flatgeobuf/package.json
+++ b/modules/flatgeobuf/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@loaders.gl/flatgeobuf",
   "description": "Loader for FlatGeobuf",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "license": "MIT",
   "publishConfig": {
     "access": "public"
@@ -32,8 +32,8 @@
     "build-worker": "esbuild src/workers/flatgeobuf-worker.ts --bundle --outfile=dist/flatgeobuf-worker.js --define:__VERSION__=\\\"$npm_package_version\\\""
   },
   "dependencies": {
-    "@loaders.gl/gis": "4.0.0-alpha.7",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
+    "@loaders.gl/gis": "4.0.0-alpha.8",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
     "@math.gl/proj4": "^3.3.1",
     "flatgeobuf": "3.6.5"
   },
diff --git a/modules/geopackage/package.json b/modules/geopackage/package.json
index 2876ebf7f0..1f1cefc106 100644
--- a/modules/geopackage/package.json
+++ b/modules/geopackage/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@loaders.gl/geopackage",
   "description": "GeoPackage data loaders",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "license": "MIT",
   "publishConfig": {
     "access": "public"
@@ -25,9 +25,9 @@
   ],
   "dependencies": {
     "@babel/runtime": "^7.3.1",
-    "@loaders.gl/gis": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
-    "@loaders.gl/wkt": "4.0.0-alpha.7",
+    "@loaders.gl/gis": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
+    "@loaders.gl/wkt": "4.0.0-alpha.8",
     "@math.gl/proj4": "^3.5.1",
     "@types/sql.js": "^1.4.2",
     "sql.js": "1.5.0"
diff --git a/modules/geotiff/package.json b/modules/geotiff/package.json
index ac7beca2f4..b8318e479c 100644
--- a/modules/geotiff/package.json
+++ b/modules/geotiff/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/geotiff",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loaders for tiff and geotiff",
   "license": "MIT",
   "publishConfig": {
diff --git a/modules/gis/package.json b/modules/gis/package.json
index 93af4f335b..f4a7ac1781 100644
--- a/modules/gis/package.json
+++ b/modules/gis/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@loaders.gl/gis",
   "description": "Helpers for GIS category data",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "license": "MIT",
   "publishConfig": {
     "access": "public"
@@ -24,8 +24,8 @@
     "README.md"
   ],
   "dependencies": {
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
     "@mapbox/vector-tile": "^1.3.1",
     "@math.gl/polygon": "^3.5.1",
     "pbf": "^3.2.1"
diff --git a/modules/gltf/package.json b/modules/gltf/package.json
index a05f864f43..281359b782 100644
--- a/modules/gltf/package.json
+++ b/modules/gltf/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/gltf",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loader for the glTF format",
   "license": "MIT",
   "publishConfig": {
@@ -34,10 +34,10 @@
     "build-bundle": "esbuild src/bundle.ts --bundle --outfile=dist/dist.min.js"
   },
   "dependencies": {
-    "@loaders.gl/draco": "4.0.0-alpha.7",
-    "@loaders.gl/images": "4.0.0-alpha.7",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/textures": "4.0.0-alpha.7",
+    "@loaders.gl/draco": "4.0.0-alpha.8",
+    "@loaders.gl/images": "4.0.0-alpha.8",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/textures": "4.0.0-alpha.8",
     "@math.gl/core": "^3.5.1"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
diff --git a/modules/i3s/package.json b/modules/i3s/package.json
index 5deff9e224..922a874554 100644
--- a/modules/i3s/package.json
+++ b/modules/i3s/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/i3s",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "i3s .",
   "license": "MIT",
   "publishConfig": {
@@ -33,13 +33,13 @@
     "build-worker-node": "esbuild src/workers/i3s-content-worker-node.ts --outfile=dist/i3s-content-worker-node.js --platform=node --target=node16 --minify --bundle --sourcemap --define:__VERSION__=\\\"$npm_package_version\\\""
   },
   "dependencies": {
-    "@loaders.gl/compression": "4.0.0-alpha.7",
-    "@loaders.gl/draco": "4.0.0-alpha.7",
-    "@loaders.gl/images": "4.0.0-alpha.7",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
-    "@loaders.gl/textures": "4.0.0-alpha.7",
-    "@loaders.gl/tiles": "4.0.0-alpha.7",
+    "@loaders.gl/compression": "4.0.0-alpha.8",
+    "@loaders.gl/draco": "4.0.0-alpha.8",
+    "@loaders.gl/images": "4.0.0-alpha.8",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
+    "@loaders.gl/textures": "4.0.0-alpha.8",
+    "@loaders.gl/tiles": "4.0.0-alpha.8",
     "@luma.gl/constants": "^8.5.4",
     "@math.gl/core": "^3.5.1",
     "@math.gl/culling": "^3.5.1",
diff --git a/modules/images/package.json b/modules/images/package.json
index 839cb6d844..878e315e23 100644
--- a/modules/images/package.json
+++ b/modules/images/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/images",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loaders and writers for images (PNG, JPG, ...)",
   "license": "MIT",
   "publishConfig": {
@@ -32,7 +32,7 @@
     "build-bundle": "esbuild src/bundle.ts --outfile=dist/dist.min.js --bundle --minify --sourcemap"
   },
   "dependencies": {
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7"
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5",
   "devDependencies": {
diff --git a/modules/json/package.json b/modules/json/package.json
index cfd2e2baa5..7abf8320bd 100644
--- a/modules/json/package.json
+++ b/modules/json/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/json",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loader for JSON and streaming JSON formats",
   "license": "MIT",
   "publishConfig": {
@@ -35,9 +35,9 @@
     "build-worker": "esbuild src/workers/geojson-worker.ts --bundle --outfile=dist/geojson-worker.js --define:__VERSION__=\\\"$npm_package_version\\\""
   },
   "dependencies": {
-    "@loaders.gl/gis": "4.0.0-alpha.7",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7"
+    "@loaders.gl/gis": "4.0.0-alpha.8",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
 }
diff --git a/modules/kml/package.json b/modules/kml/package.json
index 6520a17bcd..614f39f0a7 100644
--- a/modules/kml/package.json
+++ b/modules/kml/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/kml",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loader for the KML format",
   "license": "MIT",
   "publishConfig": {
@@ -32,9 +32,9 @@
     "build-bundle": "esbuild src/bundle.ts --bundle --outfile=dist/dist.min.js"
   },
   "dependencies": {
-    "@loaders.gl/gis": "4.0.0-alpha.7",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
+    "@loaders.gl/gis": "4.0.0-alpha.8",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
     "@tmcw/togeojson": "^4.5.0",
     "@xmldom/xmldom": "^0.7.5"
   },
diff --git a/modules/las/package.json b/modules/las/package.json
index 24cc4dd937..352ce68fe5 100644
--- a/modules/las/package.json
+++ b/modules/las/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/las",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loader for the LAS and LAZ formats",
   "license": "MIT",
   "publishConfig": {
@@ -41,8 +41,8 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.3.1",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
     "apache-arrow": "^9.0.0"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
diff --git a/modules/loader-utils/package.json b/modules/loader-utils/package.json
index ecda2fd392..e22a688f26 100644
--- a/modules/loader-utils/package.json
+++ b/modules/loader-utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/loader-utils",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loaders for 3D graphics formats",
   "license": "MIT",
   "publishConfig": {
@@ -38,7 +38,7 @@
   "scripts": {},
   "dependencies": {
     "@babel/runtime": "^7.3.1",
-    "@loaders.gl/worker-utils": "4.0.0-alpha.7",
+    "@loaders.gl/worker-utils": "4.0.0-alpha.8",
     "@probe.gl/stats": "^4.0.2"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
diff --git a/modules/math/package.json b/modules/math/package.json
index dff06e7057..7e7f2454fd 100644
--- a/modules/math/package.json
+++ b/modules/math/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/math",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Experimental math classes for loaders.gl",
   "license": "MIT",
   "publishConfig": {
@@ -31,8 +31,8 @@
     "pre-build": "echo \"Nothing to build in @loaders.gl/math\""
   },
   "dependencies": {
-    "@loaders.gl/images": "4.0.0-alpha.7",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
+    "@loaders.gl/images": "4.0.0-alpha.8",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
     "@math.gl/core": "^3.5.1"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
diff --git a/modules/mvt/package.json b/modules/mvt/package.json
index c70f658ebf..1be98d6dcc 100644
--- a/modules/mvt/package.json
+++ b/modules/mvt/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@loaders.gl/mvt",
   "description": "Loader for Mapbox Vector Tiles",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "license": "MIT",
   "publishConfig": {
     "access": "public"
@@ -32,9 +32,9 @@
     "build-worker": "esbuild src/workers/mvt-worker.ts --bundle --outfile=dist/mvt-worker.js --define:__VERSION__=\\\"$npm_package_version\\\""
   },
   "dependencies": {
-    "@loaders.gl/gis": "4.0.0-alpha.7",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
+    "@loaders.gl/gis": "4.0.0-alpha.8",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
     "@math.gl/polygon": "^3.5.1",
     "pbf": "^3.2.1"
   },
diff --git a/modules/netcdf/package.json b/modules/netcdf/package.json
index 1d2b857b85..6af860ad50 100644
--- a/modules/netcdf/package.json
+++ b/modules/netcdf/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@loaders.gl/netcdf",
   "description": "Loader for NetCDF",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "license": "MIT",
   "publishConfig": {
     "access": "public"
@@ -30,7 +30,7 @@
     "build-bundle": "esbuild src/bundle.ts --bundle --outfile=dist/dist.min.js"
   },
   "dependencies": {
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7"
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
 }
diff --git a/modules/obj/package.json b/modules/obj/package.json
index 4f08226fc1..812484aed9 100644
--- a/modules/obj/package.json
+++ b/modules/obj/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/obj",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loader for the OBJ format",
   "license": "MIT",
   "publishConfig": {
@@ -34,8 +34,8 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.3.1",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7"
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
 }
diff --git a/modules/parquet/package.json b/modules/parquet/package.json
index b01b63fb7c..d5e76e2f74 100644
--- a/modules/parquet/package.json
+++ b/modules/parquet/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/parquet",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loader for Apache Parquet files",
   "license": "MIT",
   "publishConfig": {
@@ -41,10 +41,10 @@
     "./src/lib/wasm/load-wasm/load-wasm-node.ts": "./src/lib/wasm/load-wasm/load-wasm-browser.ts"
   },
   "dependencies": {
-    "@loaders.gl/bson": "4.0.0-alpha.7",
-    "@loaders.gl/compression": "4.0.0-alpha.7",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
+    "@loaders.gl/bson": "4.0.0-alpha.8",
+    "@loaders.gl/compression": "4.0.0-alpha.8",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
     "async-mutex": "^0.2.2",
     "brotli": "^1.3.2",
     "int53": "^0.2.4",
diff --git a/modules/pcd/package.json b/modules/pcd/package.json
index 5499f6176d..b10b9979d4 100644
--- a/modules/pcd/package.json
+++ b/modules/pcd/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/pcd",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loader for the PCD format",
   "license": "MIT",
   "publishConfig": {
@@ -33,8 +33,8 @@
     "build-worker": "esbuild src/workers/pcd-worker.ts --bundle --outfile=dist/pcd-worker.js --define:__VERSION__=\\\"$npm_package_version\\\""
   },
   "dependencies": {
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7"
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
 }
diff --git a/modules/ply/package.json b/modules/ply/package.json
index 0ef0bd8d24..414fc1be7a 100644
--- a/modules/ply/package.json
+++ b/modules/ply/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/ply",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loader for the PLY format",
   "license": "MIT",
   "publishConfig": {
@@ -34,8 +34,8 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.3.1",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7"
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
 }
diff --git a/modules/polyfills/package.json b/modules/polyfills/package.json
index 04c4ee2c65..c4aaf6c268 100644
--- a/modules/polyfills/package.json
+++ b/modules/polyfills/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/polyfills",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Polyfills for TextEncoder/TextDecoder",
   "license": "MIT",
   "publishConfig": {
diff --git a/modules/potree/package.json b/modules/potree/package.json
index 60da3f1e94..13c910676a 100644
--- a/modules/potree/package.json
+++ b/modules/potree/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/potree",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "potree loaders for large point clouds.",
   "license": "MIT",
   "publishConfig": {
@@ -35,7 +35,7 @@
     "build-bundle": "esbuild src/bundle.ts --bundle --outfile=dist/dist.min.js"
   },
   "dependencies": {
-    "@loaders.gl/math": "4.0.0-alpha.7",
+    "@loaders.gl/math": "4.0.0-alpha.8",
     "@math.gl/core": "^3.5.1"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
diff --git a/modules/schema/package.json b/modules/schema/package.json
index ce58c1872b..66ab745a3a 100644
--- a/modules/schema/package.json
+++ b/modules/schema/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/schema",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Table format APIs for JSON, CSV, etc...",
   "license": "MIT",
   "publishConfig": {
diff --git a/modules/shapefile/package.json b/modules/shapefile/package.json
index 94607ad722..5a20cb04bf 100644
--- a/modules/shapefile/package.json
+++ b/modules/shapefile/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@loaders.gl/shapefile",
   "description": "Loader for the Shapefile Format",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "license": "MIT",
   "publishConfig": {
     "access": "public"
@@ -37,9 +37,9 @@
     "build-worker-dbf": "esbuild src/workers/dbf-worker.ts --bundle --outfile=dist/dbf-worker.js --define:__VERSION__=\\\"$npm_package_version\\\""
   },
   "dependencies": {
-    "@loaders.gl/gis": "4.0.0-alpha.7",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
+    "@loaders.gl/gis": "4.0.0-alpha.8",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
     "@math.gl/proj4": "^3.5.1"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
diff --git a/modules/terrain/package.json b/modules/terrain/package.json
index 7aa190af67..1c67acb74e 100644
--- a/modules/terrain/package.json
+++ b/modules/terrain/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/terrain",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loader for terrain raster formats",
   "license": "MIT",
   "publishConfig": {
@@ -35,9 +35,9 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.3.1",
-    "@loaders.gl/images": "4.0.0-alpha.7",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
+    "@loaders.gl/images": "4.0.0-alpha.8",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
     "@mapbox/martini": "^0.2.0"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
diff --git a/modules/textures/package.json b/modules/textures/package.json
index 4e1a9867c9..2ed467ef40 100644
--- a/modules/textures/package.json
+++ b/modules/textures/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/textures",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loaders for compressed and super compressed (basis) textures ",
   "license": "MIT",
   "publishConfig": {
@@ -45,15 +45,15 @@
     "build-crunch-worker": "esbuild src/workers/crunch-worker.ts --outfile=dist/crunch-worker.js --target=esnext --bundle --define:__VERSION__=\\\"$npm_package_version\\\""
   },
   "dependencies": {
-    "@loaders.gl/images": "4.0.0-alpha.7",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
-    "@loaders.gl/worker-utils": "4.0.0-alpha.7",
+    "@loaders.gl/images": "4.0.0-alpha.8",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
+    "@loaders.gl/worker-utils": "4.0.0-alpha.8",
     "ktx-parse": "^0.0.4",
     "texture-compressor": "^1.0.2"
   },
   "devDependencies": {
-    "@loaders.gl/polyfills": "4.0.0-alpha.7"
+    "@loaders.gl/polyfills": "4.0.0-alpha.8"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
 }
diff --git a/modules/tile-converter/package.json b/modules/tile-converter/package.json
index 1b7e8bca5d..bc643129d2 100644
--- a/modules/tile-converter/package.json
+++ b/modules/tile-converter/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/tile-converter",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Converter",
   "license": "MIT",
   "publishConfig": {
@@ -44,18 +44,18 @@
     "build-3d-tiles-attributes-worker": "esbuild src/workers/3d-tiles-attributes-worker.ts --outfile=dist/3d-tiles-attributes-worker.js --platform=node --target=esnext,node14 --external:join-images --minify --bundle --sourcemap --define:__VERSION__=\\\"$npm_package_version\\\""
   },
   "dependencies": {
-    "@loaders.gl/3d-tiles": "4.0.0-alpha.7",
-    "@loaders.gl/crypto": "4.0.0-alpha.7",
-    "@loaders.gl/draco": "4.0.0-alpha.7",
-    "@loaders.gl/gltf": "4.0.0-alpha.7",
-    "@loaders.gl/i3s": "4.0.0-alpha.7",
-    "@loaders.gl/images": "4.0.0-alpha.7",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/polyfills": "4.0.0-alpha.7",
-    "@loaders.gl/textures": "4.0.0-alpha.7",
-    "@loaders.gl/tiles": "4.0.0-alpha.7",
-    "@loaders.gl/worker-utils": "4.0.0-alpha.7",
-    "@loaders.gl/zip": "4.0.0-alpha.7",
+    "@loaders.gl/3d-tiles": "4.0.0-alpha.8",
+    "@loaders.gl/crypto": "4.0.0-alpha.8",
+    "@loaders.gl/draco": "4.0.0-alpha.8",
+    "@loaders.gl/gltf": "4.0.0-alpha.8",
+    "@loaders.gl/i3s": "4.0.0-alpha.8",
+    "@loaders.gl/images": "4.0.0-alpha.8",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/polyfills": "4.0.0-alpha.8",
+    "@loaders.gl/textures": "4.0.0-alpha.8",
+    "@loaders.gl/tiles": "4.0.0-alpha.8",
+    "@loaders.gl/worker-utils": "4.0.0-alpha.8",
+    "@loaders.gl/zip": "4.0.0-alpha.8",
     "@math.gl/core": "^3.5.1",
     "@math.gl/culling": "^3.5.1",
     "@math.gl/geoid": "^3.5.1",
diff --git a/modules/tiles/package.json b/modules/tiles/package.json
index c599dce902..5a48bed65f 100644
--- a/modules/tiles/package.json
+++ b/modules/tiles/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/tiles",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Common components for different tiles loaders.",
   "license": "MIT",
   "publishConfig": {
@@ -33,8 +33,8 @@
     "build-bundle": "esbuild src/bundle.ts --bundle --outfile=dist/dist.min.js"
   },
   "dependencies": {
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/math": "4.0.0-alpha.7",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/math": "4.0.0-alpha.8",
     "@math.gl/core": "^3.5.1",
     "@math.gl/culling": "^3.5.1",
     "@math.gl/geospatial": "^3.5.1",
diff --git a/modules/video/package.json b/modules/video/package.json
index d66af26b52..b6242a9307 100644
--- a/modules/video/package.json
+++ b/modules/video/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/video",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loaders and writers for video (MP4, WEBM, ...)",
   "license": "MIT",
   "publishConfig": {
@@ -32,8 +32,8 @@
     "build-bundle": "esbuild src/bundle.ts --bundle --outfile=dist/dist.min.js"
   },
   "dependencies": {
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/worker-utils": "4.0.0-alpha.7",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/worker-utils": "4.0.0-alpha.8",
     "gifshot": "^0.4.5"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
diff --git a/modules/wkt/package.json b/modules/wkt/package.json
index eb073fca5e..aa3a6fb834 100644
--- a/modules/wkt/package.json
+++ b/modules/wkt/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@loaders.gl/wkt",
   "description": "Loader and Writer for the WKT (Well Known Text) Format",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "license": "MIT",
   "publishConfig": {
     "access": "public"
@@ -35,8 +35,8 @@
     "fuzzer": "^0.2.1"
   },
   "dependencies": {
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7"
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8"
   },
   "gitHead": "c95a4ff72512668a93d9041ce8636bac09333fd5"
 }
diff --git a/modules/wms/package.json b/modules/wms/package.json
index 87a98e912c..121d6974c2 100644
--- a/modules/wms/package.json
+++ b/modules/wms/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/wms",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loaders for the WMS (Web Map Service) standard",
   "license": "MIT",
   "publishConfig": {
@@ -39,10 +39,10 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.3.1",
-    "@loaders.gl/images": "4.0.0-alpha.7",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
-    "@loaders.gl/xml": "4.0.0-alpha.7",
+    "@loaders.gl/images": "4.0.0-alpha.8",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
+    "@loaders.gl/xml": "4.0.0-alpha.8",
     "@turf/rewind": "^5.1.5",
     "deep-strict-equal": "^0.2.0",
     "lerc": "^4.0.1"
diff --git a/modules/worker-utils/package.json b/modules/worker-utils/package.json
index e8706f47f4..5271fe8fc4 100644
--- a/modules/worker-utils/package.json
+++ b/modules/worker-utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/worker-utils",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Utilities for running tasks on worker threads",
   "license": "MIT",
   "publishConfig": {
diff --git a/modules/xml/package.json b/modules/xml/package.json
index a4a1037e5d..f4a609df76 100644
--- a/modules/xml/package.json
+++ b/modules/xml/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/xml",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loaders for the XML (eXtensible Markup Language) format",
   "license": "MIT",
   "publishConfig": {
@@ -33,8 +33,8 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.3.1",
-    "@loaders.gl/loader-utils": "4.0.0-alpha.7",
-    "@loaders.gl/schema": "4.0.0-alpha.7",
+    "@loaders.gl/loader-utils": "4.0.0-alpha.8",
+    "@loaders.gl/schema": "4.0.0-alpha.8",
     "fast-xml-parser": "^4.1.3"
   },
   "devDependencies": {
diff --git a/modules/zarr/package.json b/modules/zarr/package.json
index 95635ec831..eb5c04bb0e 100644
--- a/modules/zarr/package.json
+++ b/modules/zarr/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/zarr",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Framework-independent loaders for Zarr",
   "license": "MIT",
   "publishConfig": {
diff --git a/modules/zip/package.json b/modules/zip/package.json
index b2bff10bc3..0f00d30104 100644
--- a/modules/zip/package.json
+++ b/modules/zip/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@loaders.gl/zip",
-  "version": "4.0.0-alpha.7",
+  "version": "4.0.0-alpha.8",
   "description": "Zip Archive Loader",
   "license": "MIT",
   "publishConfig": {
diff --git a/yarn.lock b/yarn.lock
index 174e8722a4..8ecb097a99 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -4050,9 +4050,9 @@ camelcase@^5.0.0, camelcase@^5.3.1:
   integrity sha512-L28STB170nwWS63UjtlEOE3dldQApaJXZkOI1uMFfzf3rRuPegHaHesyee+YxQ+W6SvRDQV6UrdOdRiR153wJg==
 
 caniuse-lite@^1.0.30001449:
-  version "1.0.30001505"
-  resolved "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001505.tgz"
-  integrity sha512-jaAOR5zVtxHfL0NjZyflVTtXm3D3J9P15zSJ7HmQF8dSKGA6tqzQq+0ZI3xkjyQj46I4/M0K2GbMpcAFOcbr3A==
+  version "1.0.30001508"
+  resolved "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001508.tgz"
+  integrity sha512-sdQZOJdmt3GJs1UMNpCCCyeuS2IEGLXnHyAo9yIO5JJDjbjoVRij4M1qep6P6gFpptD1PqIYgzM+gwJbOi92mw==
 
 caseless@~0.12.0:
   version "0.12.0"