- **[dnsprovider]** Renamed `/providers/dns/googlecloud` to `/providers/dns/gcloud`.
- **[dnsprovider]** Modified Google Cloud provider `gcloud.NewDNSProviderServiceAccount` function to extract the project id directly from the service account file.
- **[dnsprovider]** Made errors more verbose for the Cloudflare provider.
- CLI: The `--http-timeout` switch. This allows for an override of the default client HTTP timeout.
- lib: The `HTTPClient` field. This allows for an override of the default HTTP timeout for library HTTP requests.
- CLI: The `--dns-timeout` switch. This allows for an override of the default DNS timeout for library DNS requests.
- lib: The `DNSTimeout` switch. This allows for an override of the default client DNS timeout.
- lib: The `QueryRegistration` function on `acme.Client`. This performs a POST on the client registration's URI and gets the updated registration info.
- lib: The `DeleteRegistration` function on `acme.Client`. This deletes the registration as currently configured in the client.
- lib: The `ObtainCertificateForCSR` function on `acme.Client`. The function allows to request a certificate for an already existing CSR.
- CLI: The `--csr` switch. Allows to use already existing CSRs for certificate requests on the command line.
- CLI: The `--pem` flag. This will change the certificate output so it outputs a .pem file concatanating the .key and .crt files together.
- CLI: The `--dns-resolvers` flag. Allows for users to override the default DNS servers used for recursive lookup.
- lib: Added a memcached provider for the HTTP challenge.
- CLI: The `--memcached-host` flag. This allows to use memcached for challenge storage.
- CLI: The `--must-staple` flag. This enables OCSP must staple in the generated CSR.
- lib: The library will now honor entries in your resolv.conf.
- lib: Added a field `IssuerCertificate` to the `CertificateResource` struct.
- lib: A new DNS provider for OVH.
- lib: A new DNS provider for DNSMadeEasy.
- lib: A new DNS provider for Linode.
- lib: A new DNS provider for AuroraDNS.
- lib: A new DNS provider for NS1.
- lib: A new DNS provider for Azure DNS.
- lib: A new DNS provider for Rackspace DNS.
- lib: A new DNS provider for Exoscale DNS.
- lib: A new DNS provider for DNSPod.
### Changed:
- lib: Exported the `PreCheckDNS` field so library users can manage the DNS check in tests.
- lib: The library will now skip challenge solving if a valid Authz already exists.
### Removed:
- lib: The library will no longer check for auto renewed certificates. This has been removed from the spec and is not supported in Boulder.
### Fixed:
- lib: Fix a problem with the Route53 provider where it was possible the verification was published to a private zone.
- lib: Loading an account from file should fail if a integral part is nil
- lib: Fix a potential issue where the Dyn provider could resolve to an incorrect zone.
- lib: If a registration encounteres a conflict, the old registration is now recovered.
- CLI: The account.json file no longer has the executable flag set.
- lib: Made the client registration more robust in case of a 403 HTTP response.
- lib: Fixed an issue with zone lookups when they have a CNAME in another zone.
- lib: Fixed the lookup for the authoritative zone for Google Cloud.
- lib: Fixed a race condition in the nonce store.
- lib: The Google Cloud provider now removes old entries before trying to add new ones.
- lib: Fixed a condition where we could stall due to an early error condition.
- lib: Fixed an issue where Authz object could end up in an active state after an error condition.
- CLI: The `--dns` switch. To include the DNS challenge for consideration. When using this switch, all other solvers are disabled. Supported are the following solvers: cloudflare, digitalocean, dnsimple, dyn, gandi, googlecloud, namecheap, route53, rfc2136 and manual.
- CLI: The `--webroot` switch. The HTTP-01 challenge may now be completed by dropping a file into a webroot. When using this switch, all other solvers are disabled.
- CLI: The `--key-type` switch. This replaces the `--rsa-key-size` switch and supports the following key types: EC256, EC384, RSA2048, RSA4096 and RSA8192.
- CLI: The `--dnshelp` switch. This displays a more in-depth help topic for DNS solvers.
- CLI: The `--no-bundle` sub switch for the `run` and `renew` commands. When this switch is set, the CLI will not bundle the issuer certificate with your certificate.
- lib: The DNS-01 challenge has been implemented with modular solvers using the `ChallengeProvider` interface. Included solvers are: cloudflare, digitalocean, dnsimple, gandi, namecheap, route53, rfc2136 and manual.
- lib: The `acme.KeyType` type was added and is used for the configuration of crypto parameters for RSA and EC keys. Valid KeyTypes are: EC256, EC384, RSA2048, RSA4096 and RSA8192.
- lib: The `GetPrivateKey` function in the `acme.User` interface is now expected to return a `crypto.PrivateKey` instead of an `rsa.PrivateKey` for EC compat.
- lib: The `acme.NewClient` function now expects an `acme.KeyType` instead of the keyBits parameter.