diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5f09bf9..297d912 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,15 +3,24 @@
 Version numbers are shared between libloadorder and libloadorder-ffi. This
 changelog does not include libloadorder-ffi changes.
 
+## [18.0.0] - 2024-08-24
+
+Same as 17.1.0: the breaking changes intended for this release were accidentally
+in that release. The changelog entry for 17.1.0 has been updated to include
+those changes.
+
 ## [17.1.0] - 2024-08-23
 
 ### Added
 
 - Support for blueprint masters, as introduced by Starfield.
 - Starfield's `SFBGS004.esm` plugin is now treated as implicitly active.
+- `Error::InvalidBlueprintPluginPosition`, which is used when attempting to put
+  a blueprint plugin in a load order position that is invalid.
 
 ### Changed
 
+- The `Error`, `GameId` and `LoadOrderMethod` enums are now non-exhaustive.
 - Updated esplugin to 6.1.0.
 - Updated regex to 1.10.6.
 - Updated rust-ini to 0.21.1.
@@ -22,6 +31,11 @@ changelog does not include libloadorder-ffi changes.
 - The wrong insert position could be calculated for a plugin being inserted into
   a load order that contains one or more hoisted non-masters.
 
+### Removed
+
+- `Error::SystemTimeError`, `Error::NotUtf8` and
+  `Error::GameMasterMustLoadFirst` as they are unused.
+
 ## [17.0.1] - 2024-06-29
 
 ### Changed
diff --git a/Cargo.lock b/Cargo.lock
index dec6c7f..51a2716 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -400,7 +400,7 @@ checksum = "d8adc4bb1803a324070e64a98ae98f38934d91957a99cfb3a43dcbc01bc56439"
 
 [[package]]
 name = "libloadorder"
-version = "17.1.0"
+version = "18.0.0"
 dependencies = [
  "criterion",
  "dirs",
@@ -417,7 +417,7 @@ dependencies = [
 
 [[package]]
 name = "libloadorder-ffi"
-version = "17.1.0"
+version = "18.0.0"
 dependencies = [
  "libc",
  "libloadorder",
diff --git a/Cargo.toml b/Cargo.toml
index 1e5b8e0..470bbec 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "libloadorder"
-version = "17.1.0"
+version = "18.0.0"
 authors = ["Oliver Hamlet <oliver@ortham.io>"]
 description = "A cross-platform library for manipulating the load order and active status of plugins for the Elder Scrolls and Fallout games."
 documentation = "https://docs.rs/libloadorder"
diff --git a/ffi/CHANGELOG.md b/ffi/CHANGELOG.md
index d2ca053..8c0db42 100644
--- a/ffi/CHANGELOG.md
+++ b/ffi/CHANGELOG.md
@@ -3,12 +3,23 @@
 Version numbers are shared between libloadorder and libloadorder-ffi. This
 changelog only contains libloadorder-ffi changes.
 
+## [18.0.0] - 2024-08-23
+
+### Changed
+
+- Updated to libloadorder v18.0.0.
+
 ## [17.1.0] - 2024-08-23
 
 ### Changed
 
 - Updated to libloadorder v17.1.0.
 
+### Removed
+
+- `LIBLO_ERROR_FILE_NOT_UTF8` and `LIBLO_ERROR_TIMESTAMP_WRITE_FAIL` as they are
+  unused.
+
 ## [17.0.1] - 2024-06-29
 
 ### Changed
diff --git a/ffi/Cargo.toml b/ffi/Cargo.toml
index 3c8231c..35429b9 100644
--- a/ffi/Cargo.toml
+++ b/ffi/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "libloadorder-ffi"
-version = "17.1.0"
+version = "18.0.0"
 authors = ["Oliver Hamlet <oliver@ortham.io>"]
 description = "A wrapper library providing a C FFI for libloadorder."
 documentation = "https://docs.rs/libloadorder-ffi"