Add release notes for 2.35.0

RELEASE-NOTES.txt

@@ -1,6 +1,25 @@
 STANC3 RELEASE NOTES
 ======================================================================
 
+v2.35.0 (3 June 2024)
+======================================================================
+
+ - Rename `sampling statement (~)` to `distribution statement (~)` to be consistent with the docs changes. (#1426)
+ - The generated C++ no longer assumes that the RNG used in Stan is specifically the `boost::ecuyer1988` generator, but uses a type alias defined in the Stan library. (#1395)
+ - Fixed an issue where multiple `reject` statements could cause the C++ compiler to fail. (#1396)
+ - Giving a variable the name `jacobian` is now deprecated. This name is being reserved for future language extensions. (#1397)
+ - When encountering an unknown identifier that matches a known suffixed function without its suffix, add the known function name to the error message. (#1401)
+ - Added `fatal_error()`, which is similar to `reject()` but rather than signaling an error which is recoverable, signals an error which should terminate execution immediately. `fatal_error` is now a reserved word. (#1402)
+ - Exposed the new overloads of `wiener_lpdf` added to Stan Math by @Franzi2114. (#1411)
+ - Added a better error message when a program attempts to use the removed array syntax. (#1413)
+ - Use tabs to position error message cursor when appropriate. (#1414)
+ - Replaced the link show when the deprecated `lkj_cov` distribution is used with the new link (see https://github.com/stan-dev/docs/pull/694). (#1415)
+ - The compiler should display a cleaner error if it encounters an internal error. (#1416)
+ - Clarified the error messages generated by a syntax error on the right side of an assignment statement. (#1417)
+ - Removed code following the last round of syntax deprecations that is currently scheduled. The final one (use of `real` values in conditionals) is now a type error and can no longer be automatically canonicalized. (#1420)
+ - Fixed an issue where `operator/` was not generating the correct C++ for complex linear algebra types. (#1421)
+ - Rollback js_of_ocaml to 5.4.0 for compatibility with QuickJS. (#1427) 
+
 v2.34.0 (16 January 2024)
 ======================================================================