diff --git a/RELEASE-NOTES.md b/RELEASE-NOTES.md
index d44b604e..86dd2219 100644
--- a/RELEASE-NOTES.md
+++ b/RELEASE-NOTES.md
@@ -19,6 +19,11 @@ The app, its skills and the toolkit carry one version.
 
 Everything below is on `main` and reaches no install until a version is cut.
 
+## v1.6.4
+
+2026-09-26. Browse and share projects in the community, and open any of them
+on the web.
+
 - **A community of projects.** The home page's Community tile, and a
   Community section under your projects, list the app clones people shared to
   the community repo, each with a cover drawn like a book's, and the examples.
@@ -28,10 +33,10 @@ Everything below is on `main` and reaches no install until a version is cut.
   link preview.
 - **A board can no longer reach the app.** Every board runs sandboxed, and the
   websites you visit can no longer reach the app's server.
-- **Every project in the community opens on the web.** Its **Open** shows the
-  project's canvas at `superproto.dev/p/<id>`, read-only, for the examples and
-  for projects people shared alike, and **Copy link** copies that address.
-  Old `superproto.dev/demo` links go to the same example, or to the community.
+- **Every project in the community opens on the web.** Each has a read-only
+  canvas at `superproto.dev/p/<id>`, the examples and projects people shared
+  alike. **Copy link** copies that address, and **Open** goes there for a
+  shared project; an example still opens as a tab in the app.
 - **`sp`, `refkit` and `artgen` no longer write into the app.** Python's cache
   files went inside it, which broke the app's signature check.
 
diff --git a/canvas/package.json b/canvas/package.json
index 26d1b71c..37716fd8 100644
--- a/canvas/package.json
+++ b/canvas/package.json
@@ -1,7 +1,7 @@
 {
   "name": "prototyping-canvas",
   "private": true,
-  "version": "1.6.3",
+  "version": "1.6.4",
   "type": "module",
   "scripts": {
     "dev": "vite",
diff --git a/desktop/package.json b/desktop/package.json
index 5152b736..b9fbe1d0 100644
--- a/desktop/package.json
+++ b/desktop/package.json
@@ -1,7 +1,7 @@
 {
   "name": "super-prototyping-desktop",
   "private": true,
-  "version": "1.6.3",
+  "version": "1.6.4",
   "description": "The super-prototyping canvas as a desktop app",
   "author": "ReScience Lab",
   "type": "module",
diff --git a/tools/pyproject.toml b/tools/pyproject.toml
index e85059ba..aa932ba8 100644
--- a/tools/pyproject.toml
+++ b/tools/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "super-prototyping-tools"
-version = "1.6.3"
+version = "1.6.4"
 description = "refkit and artgen: measure a reference capture, shoot mockups, and diff the two"
 readme = "README.md"
 requires-python = ">=3.10"
diff --git a/tools/uv.lock b/tools/uv.lock
index ba3da459..2c7efab0 100644
--- a/tools/uv.lock
+++ b/tools/uv.lock
@@ -326,7 +326,7 @@ wheels = [
 
 [[package]]
 name = "super-prototyping-tools"
-version = "1.6.3"
+version = "1.6.4"
 source = { editable = "." }
 dependencies = [
     { name = "numpy", version = "2.2.6", source = { registry = "https://pypi.org/simple" }, marker = "python_full_version < '3.11'" },