diff --git a/client/src-tauri/Cargo.toml b/client/src-tauri/Cargo.toml
index 74c6263b..6cd11f0c 100644
--- a/client/src-tauri/Cargo.toml
+++ b/client/src-tauri/Cargo.toml
@@ -64,10 +64,12 @@ nnnoiseless = { version = "0.5", default-features = false }
 # Linux pipewire backend, breaking the Linux build. Our fork (commit 4d1304e9)
 # adapts the Linux backend to the new enum structure plus a Windows typo fix.
 #
-# Upstream PR that would fix this: https://github.com/CapSoftware/scap/pull/178
-# (open since 2025-10-26, broader scope: adds sequence numbers + SystemTime +
-# latest-buffer grab). Once merged and released, drop this git dep and pin to
-# the next scap release. Track in #TODO (or file an issue).
+# Upstream tracking:
+# - CapSoftware/scap#178 — broader fix, open since 2025-10-26, no updates
+# - Last re-check 2026-04-12: upstream main HEAD still fails Linux build
+#   (see closed PR #520 for the test run)
+# - Issue #521 tracks periodic re-checks — drop this git dep when upstream
+#   publishes a new release with the Linux fix
 scap = { git = "https://github.com/Detair/scap.git", branch = "fix/linux-frame-enum" }
 
 # Webcam capture