diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4006c65405..b67ad5d76d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,15 @@ 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).
 
 ## [Unreleased]
+
+### Breaking changes
+
+### New features
+
+### Fixed bugs
+
+## [0.9.0] - 2023-09-06
+
 * `jj diff --stat` has been implemented. It shows a histogram of the changes,
   same as `git diff --stat`. Fixes [#2066](https://github.com/martinvonz/jj/issues/2066)
 
@@ -150,6 +159,37 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   repository.
   [#2011](https://github.com/martinvonz/jj/issues/2011)
 
+### Contributors
+
+Thanks to the people who made this release happen!
+
+* Alexander Potashev (@aspotashev)
+* Anton Bulakh (@necauqua)
+* Austin Seipp (@thoughtpolice)
+* Benjamin Brittain (@benbrittain)
+* Benjamin Saunders (@Ralith)
+* Christophe Poucet (@poucet)
+* Emily Kyle Fox (@emilykfox)
+* Glen Choo (@chooglen)
+* Ilya Grigoriev (@ilyagr)
+* Kevin Liao (@kevincliao)
+* Linus Arver (@listx)
+* Martin Clausen (@maacl)
+* Martin von Zweigbergk (@martinvonz)
+* Matt Freitas-Stavola (@mbStavola)
+* Oscar Bonilla (@ob)
+* Philip Metzger (@PhilipMetzger)
+* Piotr Kufel (@qfel)
+* Preston Van Loon (@prestonvanloon)
+* Tal Pressman (@talpr)
+* Vamsi Avula (@avamsi)
+* Vincent Breitmoser (@Valodim)
+* Vladimir (@0xdeafbeef)
+* Waleed Khan (@arxanas)
+* Yuya Nishihara (@yuja)
+* Zachary Dremann (@Dr-Emann)
+
+
 ## [0.8.0] - 2023-07-09
 
 ### Breaking changes
diff --git a/Cargo.lock b/Cargo.lock
index 77f07fa6e0..0c471b1a18 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -791,7 +791,7 @@ dependencies = [
 
 [[package]]
 name = "gen-protos"
-version = "0.8.0"
+version = "0.9.0"
 dependencies = [
  "prost-build",
 ]
@@ -1013,7 +1013,7 @@ checksum = "af150ab688ff2122fcef229be89cb50dd66af9e01a4ff320cc137eecc9bacc38"
 
 [[package]]
 name = "jj-cli"
-version = "0.8.0"
+version = "0.9.0"
 dependencies = [
  "anyhow",
  "assert_cmd",
@@ -1060,7 +1060,7 @@ dependencies = [
 
 [[package]]
 name = "jj-lib"
-version = "0.8.0"
+version = "0.9.0"
 dependencies = [
  "assert_matches",
  "backoff",
@@ -2130,7 +2130,7 @@ dependencies = [
 
 [[package]]
 name = "testutils"
-version = "0.8.0"
+version = "0.9.0"
 dependencies = [
  "config",
  "git2",
diff --git a/Cargo.toml b/Cargo.toml
index 065c5d5c06..f8cc8c584f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,7 +5,7 @@ resolver = "2"
 members = ["cli", "lib", "lib/testutils", "lib/gen-protos"]
 
 [workspace.package]
-version = "0.8.0"
+version = "0.9.0"
 license = "Apache-2.0"
 rust-version = "1.71"                                 # NOTE: remember to update CI, contributing.md, changelog.md, and flake.nix
 edition = "2021"
diff --git a/docs/revsets.md b/docs/revsets.md
index 1d78f1b2fa..e4c71b0578 100644
--- a/docs/revsets.md
+++ b/docs/revsets.md
@@ -58,8 +58,8 @@ only symbols.
 * `x:`: Descendants of `x`, including the commits in `x` itself.
 * `x:y`: Descendants of `x` that are also ancestors of `y`. Equivalent
    to `x: & :y`. This is what `git log` calls `--ancestry-path x..y`.
-* `::x`, `x::`, and `x::y`: New versions of for `:x`, `x:`, and `x:y` to be
-  released in jj 0.9.0. We plan to delete the latter in jj 0.15+.
+* `::x`, `x::`, and `x::y`: New versions of `:x`, `x:`, and `x:y` released in
+  jj 0.9.0. We plan to delete the latter in jj 0.15+.
 * `::`: All visible commits in the repo. Equivalent to `all()`.
 * `x..y`: Ancestors of `y` that are not also ancestors of `x`. Equivalent to
   `:y ~ :x`. This is what `git log` calls `x..y` (i.e. the same as we call it).