diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2c0cd81..64c7de2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@
 
 ## Unreleased
 
+## 0.9.0 11-02-24
+
 - *Breaking:* Storage item key must now also be clone
 - Added KeyPointerCache which significantly helps out the map
 
diff --git a/Cargo.toml b/Cargo.toml
index 20838e8..6d19880 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sequential-storage"
-version = "0.8.1"
+version = "0.9.0"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "A crate for storing data in flash with minimal erase cycles."
diff --git a/README.md b/README.md
index d21cd3a..226c926 100644
--- a/README.md
+++ b/README.md
@@ -33,6 +33,12 @@ For any update, consult the changelog to see what changed. Any externally notica
 
 The `_test` feature of the crate is considered private. It and anything it enables is not covered by semver.
 
+The performance of any of the cache types is not covered by semver either. If you use this crate in a
+performance sensitive application, then make sure that everything remains working even when no cache is used.
+That way you've covered the worst-case execution time for that part of your application.
+
+A cache performance regression might be a bug though. Open an issue to discus your situation if you find a regression.
+
 ## Features
 
 - Key value datastore (Map)
@@ -124,7 +130,7 @@ An item is considered erased when its data CRC field is 0.
 *NOTE: This means the data itself is still stored on the flash when it's considered erased.*
 *Depending on your usecase, this might not be secure*
 
-The length is a u16, so any item cannot be longer than 0xFFFF or `page size - the item header (aligned to word boundary) - page state (2 words)`.
+The length is a u16, so any item cannot be longer than 0xFFFF or `page size - the item header (padded to word boundary) - page state (2 words)`.
 
 ### Inner workings for map