diff --git a/CHANGELOG.md b/CHANGELOG.md
index d85c33735..2ea19ccad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 <!-- links start -->
+[0.9.15]: https://github.com/aviatesk/JET.jl/compare/v0.9.14...v0.9.15
 [0.9.8]: https://github.com/aviatesk/JET.jl/compare/v0.9.7...v0.9.8
 [0.9.6]: https://github.com/aviatesk/JET.jl/compare/v0.9.5...v0.9.6
 [0.9.5]: https://github.com/aviatesk/JET.jl/compare/v0.9.4...v0.9.5
@@ -26,6 +27,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [0.8.0]: https://github.com/aviatesk/JET.jl/compare/v0.7.15...v0.8.0
 <!-- links end -->
 
+## [0.9.15]
+### Changed
+- JET.jl now will not be loaded on nightly version by default. This ensures that JETremains
+  at least loadable on nightly builds, where JET's compatibility is not guaranteed.
+  If you want to load JET on a nightly version, set the `JET_DEV_MODE` configuration of
+  Preferences.jl to `true` and load it as usual (aviatesk/JET.jl#684, aviatesk/JET.jl#686).
+- JET now fully uses [JuliaSyntax.jl](https://github.com/JuliaLang/JuliaSyntax.jl) for reporting syntax errors (aviatesk/JET.jl#685).
+
 ## [0.9.8]
 ### Added
 - An extension that integrates `@report_opt` with Cthulhu (aviatesk/JET.jl#648)
diff --git a/Project.toml b/Project.toml
index 2ba97f1c7..d92c1449b 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "JET"
 uuid = "c3a54625-cd67-489e-a8e7-0a5a0ff4e31b"
 authors = ["Shuhei Kadowaki <aviatesk@gmail.com>"]
-version = "0.9.14"
+version = "0.9.15"
 
 [deps]
 CodeTracking = "da1fd8a2-8d9e-5ec2-8556-3022fb5608a2"