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Update to go1.15

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Ludovic Fernandez 2020-08-17 12:02:03 +02:00 committed by GitHub
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@ -317,6 +317,17 @@ Since `v2.2.5` this rule has been removed, and you should not use it anymore.
## v2.2 to v2.3
### X.509 CommonName Deprecation
The deprecated, legacy behavior of treating the CommonName field on X.509 certificates as a host name when no Subject Alternative Names are present, is now disabled by default.
It means that if one is using https with your backend servers, and a certificate with only a CommonName,
Traefik will not try to match the server name indication with the CommonName anymore.
It can be temporarily re-enabled by adding the value `x509ignoreCN=0` to the `GODEBUG` environment variable.
More information: https://golang.org/doc/go1.15#commonname
### File Provider
The file parser has been changed, since v2.3 the unknown options/fields in a dynamic configuration file are treated as errors.