Merge branch 'jk/save-getenv-result'

diff --git a/RelNotes b/RelNotes
index cd6bf00d34d73467951baab5e55364ecdf867c05..31e21359a89066faf934359889ac76924dd86893 120000 (symlink)
--- a/RelNotes
+++ b/RelNotes
@@ -1 +1 @@
-Documentation/RelNotes/1.7.7.5.txt
\ No newline at end of file
+Documentation/RelNotes/2.21.0.txt
\ No newline at end of file