Version 2.12.0-243.0.dev

Merge commit 'df8c80954c316f4d332d85653aa6358188e8a2f0' into 'dev'
diff --git a/CHANGELOG.md b/CHANGELOG.md
index ffeea12..8b3949b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -169,6 +169,12 @@
 [#44072]: https://github.com/dart-lang/sdk/issues/44072
 [dart tool]: https://dart.dev/tools/dart-tool
 
+## 2.10.5 - 2020-01-21
+
+This is a patch release that fixes a crash in the Dart VM. (issue [#44563][]).
+
+[#44563]: https://github.com/dart-lang/sdk/issues/44563
+
 ## 2.10.4 - 2020-11-12
 
 This is a patch release that fixes a crash in the Dart VM (issues [#43941][],
diff --git a/tools/VERSION b/tools/VERSION
index c66c431..2bbd3fd 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -27,5 +27,5 @@
 MAJOR 2
 MINOR 12
 PATCH 0
-PRERELEASE 242
+PRERELEASE 243
 PRERELEASE_PATCH 0
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