X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=README.PERL;h=184b3771a06b752cb5e1dc6710526ae41b5597ad;hp=c2db0190ab5b1515affede930c4fefb541adff4b;hb=687237e93dd21e4656f1e166c098da1c67d99485;hpb=fe072ed77cd80a73cfc0d25ff3f18753dc054207

diff --git a/README.PERL b/README.PERL
index c2db0190ab..184b3771a0 100644
--- a/README.PERL
+++ b/README.PERL
@@ -23,8 +23,9 @@
  - on Linux distributions based on RPMs, you will need to install
    'perl-core' rather than just 'perl'.
 
- It is highly recommended that you have at least Perl version 5.10
- installed.
+ You MUST have at least Perl version 5.10.0 installed.  This minimum
+ requirement is due to our use of regexp backslash sequence \R among
+ other features that didn't exist in core Perl before that version.
 
  Notes on Perl on Windows
  ------------------------