diff --git a/LibLz4/CHANGELOG.md b/LibLz4/CHANGELOG.md
index 80c9510..d5f78da 100644
--- a/LibLz4/CHANGELOG.md
+++ b/LibLz4/CHANGELOG.md
@@ -6,6 +6,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
 ## Unreleased
 
+## [v1.0.0](https://github.com/JuliaIO/ChunkCodecs.jl/tree/LibLz4-v1.0.0) - 2025-08-30
+
+### The API is now stable
+
 ## [v0.3.0](https://github.com/JuliaIO/ChunkCodecs.jl/tree/LibLz4-v0.3.0) - 2025-08-26
 
 - Update to `ChunkCodecCore` 0.6 [#72](https://github.com/JuliaIO/ChunkCodecs.jl/pull/72) [#73](https://github.com/JuliaIO/ChunkCodecs.jl/pull/73)
diff --git a/LibLz4/Project.toml b/LibLz4/Project.toml
index 22db718..c61aed5 100644
--- a/LibLz4/Project.toml
+++ b/LibLz4/Project.toml
@@ -1,14 +1,14 @@
 name = "ChunkCodecLibLz4"
 uuid = "7e9cc85e-5614-42a3-ad86-b78f920b38a5"
 authors = ["nhz2 <nhz2@cornell.edu>"]
-version = "0.3.0"
+version = "1.0.0"
 
 [deps]
 ChunkCodecCore = "0b6fb165-00bc-4d37-ab8b-79f91016dbe1"
 Lz4_jll = "5ced341a-0733-55b8-9ab6-a4889d929147"
 
 [compat]
-ChunkCodecCore = "0.6, 1"
+ChunkCodecCore = "1"
 Lz4_jll = "1"
 julia = "1.6"
 
diff --git a/LibLz4/README.md b/LibLz4/README.md
index dc21295..f53bdc2 100644
--- a/LibLz4/README.md
+++ b/LibLz4/README.md
@@ -1,7 +1,5 @@
 # ChunkCodecLibLz4
 
-## Warning: ChunkCodecLibLz4 is currently a WIP and its API may drastically change at any time.
-
 This package implements the ChunkCodec interface for the following encoders and decoders
 using the lz4 C library <https://lz4.org/>