diff --git a/README/ReleaseNotes/v642/index.md b/README/ReleaseNotes/v642/index.md
index cdf7f70505c99..76b5b10554657 100644
--- a/README/ReleaseNotes/v642/index.md
+++ b/README/ReleaseNotes/v642/index.md
@@ -44,6 +44,7 @@ The following people have contributed to this new version:
   Note that `all=ON` enables several of these options, so building with `-Dall=ON` now requires all of their dependencies to be installed, or the unwanted ones to be disabled explicitly.
   Build options that are enabled by default, such as `pyroot`, `opengl`, `xml`, `sqlite`, `davix`, `curl`, `tmva-cpu` or `tpython` are not affected: they are still disabled automatically when their dependencies are missing.
 * The option `fail-on-missing=OFF` will no longer be honored for CMake ROOT build options that have easy-to-install dependencies (e.g. via homebrew or apt-get), such as those required by options `cfitsio`, `civetweb`, `fftw3`, `imt`, `mathmore`, `nlohmann_json`, `tmva-cpu`, `unuran`, `vdt` or `xrootd`. Before, associated `builtin_option` was automatically turned ON (or the opt-in feature turned to OFF), now, user has to install system package or manually set `builtin_option` to `ON` or opt-in feature to `OFF`.
+* The use of `CINT`-like implicit declarations such as `i = 0` is deprecated since [ROOT 6.32](https://root.cern/doc/v632/release-notes.html#deprecation-and-removal) and emits warnings `declaration without the 'auto' keyword is deprecated`. ROOT 6.44 will be the last release to support this syntax, after ROOT 6.44, the warning will turn into an error. Update those declarations by explicitly using the `auto` keyword: `auto i = 0`.
 * The legacy evaluation backend of RooFit and the related `RooFit::BatchMode()` command argument are deprecated and will be removed in ROOT 6.44. See the RooFit section below for details.
 * The method `RooRealVar::removeRange()` and the corresponding method in `RooErrorVar` that were deprecated in ROOT 6.40 are now removed.
 * The overloads of `RooAbsReal::createChi2()` and `RooAbsReal::chi2FitTo()` that take unbinned **RooDataSet** data objects were deprecated in ROOT 6.40 and are now removed.