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@@ -96,6 +96,17 @@ fetchmail-6.4.24 (not yet released):
* Bison 3.8 dropped yytoknum altogether, breaking compilation due to a
warning workaround. Remove the cast of yytoknum to void. This may cause
a compiler warning to reappear with older Bison versions.
+* OpenSSL 1.0.2: Workaround for systems that keep the expired DST Root CA X3
+ certificate in its trust store because OpenSSL by default prefers the
+ untrusted certificate and fails. Fetchmail now sets the
+ X509_V_FLAG_TRUSTED_FIRST flag (on OpenSSL 1.0.2 only).
+ This is workaround #2 from the OpenSSL Blog. For details, see both:
+ https://www.openssl.org/blog/blog/2021/09/13/LetsEncryptRootCertExpire/
+ https://letsencrypt.org/docs/dst-root-ca-x3-expiration-september-2021/
+
+ NOTE: OpenSSL 1.0.2 is end of life, it is assumed that the OpenSSL library
+ is kept up to date by a distributor or via OpenSSL support contract.
+ Where this is not the case, please upgrade to a supported OpenSSL version.
# TRANSLATIONS: language translations were updated by these fine people:
* sv: Göran Uddeborg [Swedish]