diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,9 @@
 # Changelog
 All changes to the project will be documented in this file.
 
+## [1.34.8] - not yet released
+* Update to Roslyn `3.5.0-beta1-19564-02` (PR:[#1652](https://github.com/OmniSharp/omnisharp-roslyn/pull/1652))
+
 ## [1.34.7] - 2019-11-06
 * Updated the embedded Mono to 6.4.0 (PR:[#1640](https://github.com/OmniSharp/omnisharp-roslyn/pull/1640))
 * Update to Roslyn `3.4.0-beta3-19551-02` to align with the upcoming .NET Core 3.1 Preview 3 (PR:[#1644](https://github.com/OmniSharp/omnisharp-roslyn/pull/1644))