diff --git a/.gitignore b/.gitignore
index 1b7be7dbbc..364b8ecf03 100644
--- a/.gitignore
+++ b/.gitignore
@@ -49,6 +49,11 @@ wget-log
 local/reference/linux-*/
 local/reference/seL4/
 
+# Per-fork upstream content fingerprint cache. Built by
+# verify-fork-versions.sh on each preflight run; reproducible from
+# a fork upgrade, not source of truth.
+.redbear-fork-verify/
+
 # Compiled objects
 *.o
 *.so
diff --git a/.redbear-fork-verify/installer-0.2.42.files b/.redbear-fork-verify/installer-0.2.42.files
deleted file mode 100644
index 585d449de3..0000000000
--- a/.redbear-fork-verify/installer-0.2.42.files
+++ /dev/null
@@ -1,21 +0,0 @@
-Cargo.toml
-config/default.toml
-config/minimal.toml
-.gitignore
-.gitlab-ci.yml
-LICENSE
-README.md
-res/test.toml
-res/update.sh
-src/bin/installer.rs
-src/bin/installer_tui.rs
-src/config/file_impl.rs
-src/config/file.rs
-src/config/general.rs
-src/config/mod.rs
-src/config/package.rs
-src/config/user.rs
-src/disk_wrapper.rs
-src/installer.rs
-src/lib.rs
-test.sh
diff --git a/.redbear-fork-verify/installer-0.2.42.fingerprint b/.redbear-fork-verify/installer-0.2.42.fingerprint
deleted file mode 100644
index 35be8a8ba7..0000000000
--- a/.redbear-fork-verify/installer-0.2.42.fingerprint
+++ /dev/null
@@ -1 +0,0 @@
-ed6013c2953c7e2117bd2d1c9cfd13425cb59741
diff --git a/.redbear-fork-verify/libredox-0.1.18.files b/.redbear-fork-verify/libredox-0.1.18.files
deleted file mode 100644
index 5a12fcf37c..0000000000
--- a/.redbear-fork-verify/libredox-0.1.18.files
+++ /dev/null
@@ -1,4 +0,0 @@
-Cargo.toml
-.gitignore
-LICENSE
-src/lib.rs
diff --git a/.redbear-fork-verify/libredox-0.1.18.fingerprint b/.redbear-fork-verify/libredox-0.1.18.fingerprint
deleted file mode 100644
index 43b0ea69ec..0000000000
--- a/.redbear-fork-verify/libredox-0.1.18.fingerprint
+++ /dev/null
@@ -1 +0,0 @@
-bedf0129b9ad533c3c094b9648f4bac8936d7c99