diff --git a/CHANGES.md b/CHANGES.md
new file mode 100644
index 0000000..58a5256
--- /dev/null
+++ b/CHANGES.md
@@ -0,0 +1,71 @@
+## v0.5.0
+
+This release includes:
+
+* Bug fix for `parallel_for_reduce` on empty loops.
+* Make Chan.t and Task.promise injective #69
+* Add lockfree dependency #70
+* CI fixes (#73, #76)
+* Breaking change: Rename `num_additional_domains` to `num_domains` for setup_pool
+* Documentation updates (#80, #81, #82)
+
+## v0.4.2
+
+Includes Effect.eff -> Effect.t change from OCaml trunk. (#65)
+
+## v0.4.1
+
+This release fixes compatibility with OCaml 5.00.0+trunk in #61. Breaks compatibility with older Multicore variants 4.12.0+domains and 4.12.0+domains+effects
+
+## v0.4.0
+
+This release includes:
+
+* Usage of effect handlers for task creation. This introduces a breaking change; all computations need to be enclosed in a Task.run function. See #51.
+* Multi_channel uses a per-channel domain-local key, removing the global key. #50
+* Bug fixes in parallel_scan. #60
+
+## v0.3.2
+
+Corresponding updates for breaking changes introduced in ocaml-multicore/ocaml-multicore#704
+
+* Updated with the new interface Domain.cpu_relax
+* Domain.timer_ticks replaced with Mirage clock.
+
+## v0.3.1
+
+* #45 adds support for named pools. This is a breaking change with setup_pool taking an optional name parameter and an extra unit parameter.
+* A minor bug fix in parallel_for_reduce.
+
+## v0.3.0
+
+This release includes:
+
+* A breaking change for Task pools where the num_domains argument has been renamed num_additional_domains to clear up potential confusion; see #31.
+* A new work-stealing scheduler for Task pools using domain local Chase Lev deques #29; this can improve performance significantly for some workloads.
+* A removal of closure allocation in Chan #28.
+* A move to using the Mutex & Condition modules for the implementation of Chan #24.
+* Various documentation and packaging improvements (#21, #27, #30, #32).
+
+## v0.2.2
+
+Updates to:
+
+* parallel_for to use new task distribution algorithm and allow default chunk_size (#16)
+* parallel_for_reduce to use new task distribution algorithm and allow default chunk_size parameter (#18)
+
+## v0.2.1
+
+* `recv_poll` made non-allocating
+* Addition of parallel_scan #5
+
+## v0.2.0
+
+* New Tasks library with support for async/await parallelism and parallel for loops.
+* Adds support for non-blocking Chan.send_poll and Chan.recv_poll.
+
+Thanks to @gasche for API design discussions.
+
+## v0.1.0
+
+Initial release
\ No newline at end of file
diff --git a/README.md b/README.md
index 32c23e0..78a7319 100644
--- a/README.md
+++ b/README.md
@@ -40,7 +40,7 @@ let rec fib_par pool n =
     fib n
 
 let main () =
-  let pool = T.setup_pool ~num_additional_domains:(num_domains - 1) () in
+  let pool = T.setup_pool ~num_domains:(num_domains - 1) () in
   let res = T.run pool (fun _ -> fib_par pool n) in
   T.teardown_pool pool;
   Printf.printf "fib(%d) = %d\n" n res