diff --git a/crates/stackable-operator/CHANGELOG.md b/crates/stackable-operator/CHANGELOG.md
index 22f82faa6..e5526d5b4 100644
--- a/crates/stackable-operator/CHANGELOG.md
+++ b/crates/stackable-operator/CHANGELOG.md
@@ -7,8 +7,11 @@ All notable changes to this project will be documented in this file.
 ### Added
 
 - Add the Cargo feature `kube-cel` that enables the `cel` feature on the `kube` crate ([1259]).
+- [v2]: Make `ResourceNames::ensure_max_length` public ([#1260]).
+- [v2]: Add `MAX_ANNOTATION_NAME_LENGTH` constant with a value of `63` ([#1260]).
 
-[1259]: https://github.com/stackabletech/operator-rs/pull/1259
+[#1259]: https://github.com/stackabletech/operator-rs/pull/1259
+[#1260]: https://github.com/stackabletech/operator-rs/pull/1260
 
 ## [0.115.0] - 2026-08-04
 
diff --git a/crates/stackable-operator/src/v2/macros/attributed_string_type.rs b/crates/stackable-operator/src/v2/macros/attributed_string_type.rs
index e3cfbd689..b7c457446 100644
--- a/crates/stackable-operator/src/v2/macros/attributed_string_type.rs
+++ b/crates/stackable-operator/src/v2/macros/attributed_string_type.rs
@@ -6,6 +6,9 @@ use strum::{EnumDiscriminants, IntoStaticStr};
 /// Duplicates the private constant [`crate::kvp::LABEL_VALUE_MAX_LEN`]
 pub const MAX_LABEL_VALUE_LENGTH: usize = 63;
 
+/// Maximum length of annotation names
+pub const MAX_ANNOTATION_NAME_LENGTH: usize = 63;
+
 #[derive(Debug, EnumDiscriminants, Snafu)]
 #[snafu(visibility(pub))]
 #[strum_discriminants(derive(IntoStaticStr))]
diff --git a/crates/stackable-operator/src/v2/role_group_utils.rs b/crates/stackable-operator/src/v2/role_group_utils.rs
index 1b25d2266..0c83ff459 100644
--- a/crates/stackable-operator/src/v2/role_group_utils.rs
+++ b/crates/stackable-operator/src/v2/role_group_utils.rs
@@ -99,7 +99,11 @@ impl ResourceNames {
     /// `max_length < 1 /* character */ + 1 /* dash */ + hash_length`.
     ///
     /// Kubernetes object names cannot contain non-ASCII characters.
-    fn ensure_max_length(resource_name: String, max_length: usize, hash_length: usize) -> String {
+    pub fn ensure_max_length(
+        resource_name: String,
+        max_length: usize,
+        hash_length: usize,
+    ) -> String {
         assert!(resource_name.is_ascii());
         assert!(max_length >= 1 /* character */ + 1 /* dash */ + hash_length);