diff --git a/Cargo.toml b/Cargo.toml
index d3781f14..8ae71d8c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ members = [
 resolver = "3"
 
 [workspace.package]
-version = "5.9.2"
+version = "5.10.0"
 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 = "5.9.2", path = "./foundations", default-features = false }
-foundations-macros = { version = "=5.9.2", path = "./foundations-macros", default-features = false }
+foundations = { version = "5.10.0", path = "./foundations", default-features = false }
+foundations-macros = { version = "=5.10.0", 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.3", 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 a8d6b8ef..1711d04f 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,5 +1,10 @@
 
+5.10.0
+- 2026-08-28 feat(examples): add span_with_probe demo workload
+- 2026-08-28 feat(telemetry): add span_with_probe! macro and span_fn's end_probe option
+
 5.9.2
+- 2026-08-26 Release 5.9.2 (#259)
 - 2026-08-26 fix(metrics): terminate classic histogram buckets with +Inf
 - 2026-08-25 fix(metrics): pin prometheus's protobuf feature for process metrics