diff --git a/.github/workflows/flatpak-pages.yml b/.github/workflows/flatpak-pages.yml
index 06e5e6a2e..4cc41f698 100644
--- a/.github/workflows/flatpak-pages.yml
+++ b/.github/workflows/flatpak-pages.yml
@@ -21,6 +21,8 @@ concurrency:
 jobs:
   publish:
     name: Request the combined docs, web, and Flatpak deployment
+    # A pre-release stays off the Flatpak feed: the feed's one branch is what `flatpak update` offers.
+    if: github.event_name == 'workflow_dispatch' || !github.event.release.prerelease
     runs-on: ubuntu-24.04
     env:
       GH_TOKEN: ${{ github.token }}
diff --git a/Cargo.lock b/Cargo.lock
index 6c3be32fa..469b79015 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4071,7 +4071,7 @@ dependencies = [
 
 [[package]]
 name = "solidcraft"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "block2 0.6.2",
  "eframe",
@@ -4108,11 +4108,11 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-3dx-client"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 
 [[package]]
 name = "solidcraft-cli"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "image",
  "log",
@@ -4126,7 +4126,7 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-derive"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -4135,7 +4135,7 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-doc"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "log",
  "serde",
@@ -4154,7 +4154,7 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-engine"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "image",
  "log",
@@ -4177,7 +4177,7 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-geom"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "serde",
  "serde_json",
@@ -4187,7 +4187,7 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-gpu"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "image",
  "log",
@@ -4208,7 +4208,7 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-io"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "cadmpeg-core",
  "cadmpeg-ir",
@@ -4235,7 +4235,7 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-kernel"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "log",
  "proptest",
@@ -4254,7 +4254,7 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-mcp"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "image",
  "serde_json",
@@ -4264,7 +4264,7 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-profile"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "serde_json",
  "web-time",
@@ -4272,7 +4272,7 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-render"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "image",
  "moxcms",
@@ -4288,7 +4288,7 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-sketch"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "harfrust",
  "serde",
@@ -4302,7 +4302,7 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-smlib"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "flate2",
  "log",
@@ -4315,14 +4315,14 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-space-mouse"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "serde",
 ]
 
 [[package]]
 name = "solidcraft-step"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "solidcore-record",
  "solidcraft-geom",
@@ -4331,11 +4331,11 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-testkit"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 
 [[package]]
 name = "solidcraft-ui-egui"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "arboard",
  "egui",
@@ -4367,7 +4367,7 @@ dependencies = [
 
 [[package]]
 name = "solidcraft-web"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "eframe",
  "egui",
@@ -5774,7 +5774,7 @@ checksum = "e450f9b2ed1dff33c94c12589a87338689467b9c4f5d8a5710bd09a847d2c8a7"
 
 [[package]]
 name = "xtask"
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 dependencies = [
  "flate2",
  "proc-macro2",
diff --git a/Cargo.toml b/Cargo.toml
index 328440f10..365da62d7 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ members = ["crates/*", "apps/*", "xtask"]
 exclude = ["vendor"]
 
 [workspace.package]
-version = "0.40.0-rc.1"
+version = "0.40.0-rc.2"
 edition = "2024"
 license = "MIT OR Apache-2.0"
 rust-version = "1.95"
diff --git a/crates/doc/src/format/pending/align-frames.rs b/crates/doc/src/format/v50/align-frames.rs
similarity index 100%
rename from crates/doc/src/format/pending/align-frames.rs
rename to crates/doc/src/format/v50/align-frames.rs
diff --git a/crates/doc/src/format/pending/thread-nominal-size.rs b/crates/doc/src/format/v50/thread-nominal-size.rs
similarity index 100%
rename from crates/doc/src/format/pending/thread-nominal-size.rs
rename to crates/doc/src/format/v50/thread-nominal-size.rs