update release notes

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

Author: NikolajBjorner

RELEASE_NOTES.md

@@ -7,10 +7,16 @@ Version 4.next
     - CDCL core for SMT queries. It extends the SAT engine with theory solver plugins.
   - add global incremental pre-processing for the legacy core.
 
-Version 4.14.1
+
+Version 4.14.2
 ==============
 - Improved integer cut algorithms for linear integer arithmetic.
 
+Version 4.14.1
+==============
+- Add ubv_to_int, sbv_to_int, int_to_bv to SMTLIB2 API.
+- Fix nuget package regression omitting Microsoft.Z3.* files
+
 Version 4.14.0
 ==============
 - [SLS modulo theories](https://microsoft.github.io/z3guide/programming/Local%20Search/) engine v1 release.