doc: expand openssl instructions

Refs: #36541 Expand the instructions to cover what is needed when updates are required across all active release lines PR-URL: #36554 Reviewed-By: Richard Lau <[email protected]> Reviewed-By: Myles Borins <[email protected]>
nodejs · Jan 12, 2021 · dcc93d3 · dcc93d3
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diff --git a/doc/guides/maintaining-openssl.md b/doc/guides/maintaining-openssl.md
@@ -2,6 +2,21 @@
 
 This document describes how to update `deps/openssl/`.
 
+If you need to provide updates across all active release lines you will
+currently need to generate three PRs as follows:
+
+* a PR for master which is generated following the instructions
+  below which include the QUIC patch.
+* a PR for 14.x following the instruction below based on the
+  14,x branch but skipping the step to apply the QUICK patch.
+  This PR should cherry pick back to the active release lines
+  except for the 10.x line.
+* a PR which uses the same commit from the second PR to apply the
+  updates to the openssl source code, with a new commit generated
+  by following steps 2 onwards on the 10.x line. This is
+  necessary because differences in 10.x requires that the
+  configuration files be regenerated specifically for 10.x.
+
 ## Requirements
 * Linux environment.
 * `perl` Only Perl version 5 is tested.