diff --git a/AUDIODSP_PIN b/AUDIODSP_PIN
index 852b598..6982c0a 100644
--- a/AUDIODSP_PIN
+++ b/AUDIODSP_PIN
@@ -397,5 +397,11 @@
 # Frequency jumps to the bottom (audiocomponents#162). Static renders are
 # byte-identical to rc8's; only renders across a coefficient move change.
 #
+# Moved to v0.6.6 (5ef58a4) on 2026-10-15: the release itself, for the
+# audioeffects and audioinstruments 0.4.0 release. `git diff v0.6.6rc9
+# v0.6.6` is VERSION and CHANGELOG.md, no source file, so every gate that
+# ran at rc9 ran on this node tree. The pyproject floors rise to >=0.6.6,
+# the release-time change the earlier entries left to Phase 7.
+#
 # <ref> <commit>   -- ref is what CI installs (git+https://...@<ref>)
-v0.6.6rc9 96abd345344eb356f1af5de24e320bfcf778cb8d
+v0.6.6 5ef58a489f538edceed2d9cd3fd0737f0cc954fa
diff --git a/CHANGELOG.md b/CHANGELOG.md
index cd8245d..13d1ddf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,12 @@ there, and are recorded in its changelog.
 
 ## Unreleased
 
+### Changed
+
+- **The audiodsp pin moves to v0.6.6, and the floor to `>=0.6.6`** in both
+  packages. The release is source-identical to v0.6.6rc9, the pin the gates
+  already ran at.
+
 ### Added
 
 - **`Limiter` patch 6, *Delivery Ceiling - lean*:** Delivery Ceiling for an
diff --git a/lib/audioeffects/pyproject.toml b/lib/audioeffects/pyproject.toml
index 7aae9de..19b5bbb 100644
--- a/lib/audioeffects/pyproject.toml
+++ b/lib/audioeffects/pyproject.toml
@@ -23,7 +23,7 @@ classifiers = [
 # 0.5.1 is the first release the core PUBLISHED under this name: it was renamed
 # on 2026-09-21, and v0.5.0 was tagged that day and published nothing. So there
 # is no older pydevices-audiodsp to be compatible with.
-dependencies = ["pydevices-audiodsp>=0.5.1"]
+dependencies = ["pydevices-audiodsp>=0.6.6"]
 
 [project.urls]
 Repository = "https://github.com/PyDevices/audiocomponents"
diff --git a/lib/audioinstruments/pyproject.toml b/lib/audioinstruments/pyproject.toml
index 44a39f9..b3bbb1d 100644
--- a/lib/audioinstruments/pyproject.toml
+++ b/lib/audioinstruments/pyproject.toml
@@ -23,7 +23,7 @@ classifiers = [
 # 0.5.1 is the first release the core PUBLISHED under this name: it was renamed
 # on 2026-09-21, and v0.5.0 was tagged that day and published nothing. So there
 # is no older pydevices-audiodsp to be compatible with.
-dependencies = ["pydevices-audiodsp>=0.5.1"]
+dependencies = ["pydevices-audiodsp>=0.6.6"]
 
 [project.urls]
 Repository = "https://github.com/PyDevices/audiocomponents"