diff --git a/README.md b/README.md
index 3274c15271..415c5fc245 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@
 About
 -----
 
-- **Important**: This is Lean 3.17.1c, a fork of Lean 3 maintained and updated by the Lean community. The last official release of Lean 3.x was Lean 3.4.2, which can be found [here](https://github.com/leanprover/lean). The Lean developers are currently developing [Lean 4](https://github.com/leanprover/lean4).
+- **Important**: This is Lean 3.18.0c, a fork of Lean 3 maintained and updated by the Lean community. The last official release of Lean 3.x was Lean 3.4.2, which can be found [here](https://github.com/leanprover/lean). The Lean developers are currently developing [Lean 4](https://github.com/leanprover/lean4).
 - [Lean Homepage](http://leanprover.github.io)
 - [Lean Prover Community Homepage](https://leanprover-community.github.io)
 - [Theorem Proving in Lean](https://leanprover.github.io/theorem_proving_in_lean/index.html)
diff --git a/doc/changes.md b/doc/changes.md
index 01199fd5a4..8f44dd4775 100644
--- a/doc/changes.md
+++ b/doc/changes.md
@@ -1,3 +1,22 @@
+3.18.0c (28 July 2020)
+----------------------
+
+Features:
+- Notation for set replacement (#402)
+
+Bug fixes:
+- Drop non-local-constant exprs from `cases` output (#390)
+- Freeze local instances for definition parameters (#403, fixes #397)
+- Freeze local instances in `#check` (#404, fixes #398)
+- Honor `as_is` attribute for functions (#399)
+- Fix VM environment issue (#405)
+- Remove `tactic.norm_num` (#406)
+- Fix injection introducing too many hyps (#407, fixes #400)
+- Handle corner cases in `by_cases` (#409)
+
+Changes:
+- Use a structure for `well_founded` (#408)
+
 3.17.1c (8 July 2020)
 ---------------------
 
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 91a08c218d..90d9829638 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -4,8 +4,8 @@ if ((${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 3.1) OR (${CMAKE_MAJO
 endif()
 project(LEAN CXX C)
 set(LEAN_VERSION_MAJOR 3)
-set(LEAN_VERSION_MINOR 17)
-set(LEAN_VERSION_PATCH 1)
+set(LEAN_VERSION_MINOR 18)
+set(LEAN_VERSION_PATCH 0)
 set(LEAN_VERSION_IS_RELEASE 1)  # This number is 1 in the release revision, and 0 otherwise.
 set(LEAN_SPECIAL_VERSION_DESC "" CACHE STRING "Additional version description like 'nightly-2018-03-11'")
 set(LEAN_VERSION_STRING "${LEAN_VERSION_MAJOR}.${LEAN_VERSION_MINOR}.${LEAN_VERSION_PATCH}")