diff --git a/developer/19.0/whatsnew.md b/developer/19.0/whatsnew.md
index 1005476c3..a0541ad51 100644
--- a/developer/19.0/whatsnew.md
+++ b/developer/19.0/whatsnew.md
@@ -3,3 +3,13 @@ title: What's new in Keyman Developer 19.0
 ---
 
 Keyman Developer 19 has the following significant changes:
+
+- Updated to Unicode 17.0 (#14728)
+- Updated langtags.json, ISO639-3, language-subtag-registry (#16371)
+- Validate a keyboard or lexical model project frmo within Keyman Developer (#16076)
+- Support for line numbers in LDML keyboard compiler messages (#13375)
+- Convert from .keylayout (macOS keyboards, Ukelele) into .kmn (#12191)
+- Compiler improvements - prevent illegal constructs (#16723, #16726, #36710, #16717)
+- Various improvements to touch layout editor (#16572, #16520, #16517, #16516, #16509, #16456, #16370, #16347, #16129, #15371, #15338, #15243, #15060, #14228)
+- Support output folder and `--continue-on-error` in kmc (#16453)
+- About [400 other fixes and changes](https://keyman.com/go/app/whatsnew/developer/19.0)