diff --git a/Cargo.toml b/Cargo.toml
index 6d86266e..e97f4992 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ members = [
 resolver = "3"
 
 [workspace.package]
-version = "5.11.0"
+version = "5.11.1"
 repository = "https://github.com/cloudflare/foundations"
 edition = "2024"
 authors = ["Cloudflare"]
@@ -42,8 +42,8 @@ check-cfg = [
 [workspace.dependencies]
 anyhow = "1.0.102"
 backtrace = "0.3.76"
-foundations = { version = "5.11.0", path = "./foundations", default-features = false }
-foundations-macros = { version = "=5.11.0", path = "./foundations-macros", default-features = false }
+foundations = { version = "5.11.1", path = "./foundations", default-features = false }
+foundations-macros = { version = "=5.11.1", path = "./foundations-macros", default-features = false }
 foundations-metrics-registry = { version = "1.0.0", path = "./foundations-metrics-registry", default-features = false }
 foundations-metrics = { version = "0.1.0-beta.4", path = "./foundations-metrics", default-features = false }
 bindgen = { version = "0.72.1", default-features = false }
diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index 7da8fc29..016562be 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,4 +1,10 @@
 
+5.11.1
+- 2026-10-19 deps: update libc to 0.2.191 and remove upper bound
+- 2026-10-15 foundations/derive: add derive to the platform-common-default feature set
+- 2026-10-14 metrics: add #[automatically_derived] to LowCardinalityLabel impls
+- 2026-10-13 foundations: add Display derive for trivial struct/enum Display
+
 5.11.0
 - 2026-10-09 feat(telemetry): skip RwLock for unsampled SharedSpanHandles
 - 2026-10-09 refactor(telemetry): share user span sampling state between handles