# Changelog

## [v3.8.0] - 2020-07-02

### Added:
- **[cli]** cli: add hook on the run command.
- **[dnsprovider]** inwx: Two-Factor-Authentication
- **[dnsprovider]** Add DNS provider for ArvanCloud

### Changed:
- **[dnsprovider]** vultr: bumping govultr version
- **[dnsprovider]** desec: improve error logs.
- **[lib]** Ensures the return of a location during account updates
- **[dnsprovider]** route53: Document all AWS credential environment variables

### Fixed:
- **[dnsprovider]** stackpath: fix subdomain support.
- **[dnsprovider]** arvandcloud: fix record name.
- **[dnsprovider]** fix: multi-va.
- **[dnsprovider]** constellix: fix search records API call.
- **[dnsprovider]** hetzner: fix record name.
- **[lib]** Registrar.ResolveAccountByKey: Fix malformed request

## [v3.7.0] - 2020-05-11

### Added:

- **[dnsprovider]** Add DNS provider for Netlify.
- **[dnsprovider]** Add DNS provider for deSEC.io
- **[dnsprovider]** Add DNS provider for LuaDNS
- **[dnsprovider]** Adding Hetzner DNS provider
- **[dnsprovider]** Add DNS provider for Mythic beasts DNSv2
- **[dnsprovider]** Add DNS provider for Yandex.

### Changed:

- **[dnsprovider]** Upgrade DNSimple client to 0.60.0
- **[dnsprovider]** update aws sdk

### Fixed:

- **[dnsprovider]** autodns: removes TXT records during CleanUp.
- **[dnsprovider]** Fix exoscale HTTP timeout
- **[cli]** fix: renew path information.
- **[cli]** Fix account storage location warning message

## [v3.6.0] - 2020-04-24

### Added:

- **[dnsprovider]** Add DNS provider for CloudDNS.
- **[dnsprovider]** alicloud: add support for domain with punycode
- **[dnsprovider]** cloudns: Add subuser support
- **[cli]** Information about renewed certificates are now passed to the renew hook

### Changed:

- **[dnsprovider]** acmedns: Update cpu/goacmedns v0.0.1 -> v0.0.2
- **[dnsprovider]** alicloud: update sdk dependency version to v1.61.112
- **[dnsprovider]** azure: Allow for the use of MSI
- **[dnsprovider]** constellix: improve challenge.
- **[dnsprovider]** godaddy: allow parallel solve.
- **[dnsprovider]** namedotcom: get the actual registered domain so we can remove just that from the hostname to be created
- **[dnsprovider]** transip: updated the client to v6

### Fixed:

- **[dnsprovider]** ns1: fix missing domain in log 
- **[dnsprovider]** rimuhosting: use HTTP client from config.

## [v3.5.0] - 2020-03-15

### Added:

- **[dnsprovider]** Add DNS provider for Dynu.
- **[dnsprovider]** Add DNS provider for reg.ru
- **[dnsprovider]** Add DNS provider for Zonomi and RimuHosting.
- **[cli]** Building binaries for arm 6 and 5
- **[cli]** Uses CGO_ENABLED=0
- **[cli]** Multi-arch Docker image.
- **[cli]** Adds `--name` flag to list command.

### Changed:

- **[lib]** lib: Improve cleanup log messages.
- **[lib]** Wrap errors.

### Fixed:

- **[dnsprovider]** azure: pass AZURE_CLIENT_SECRET_FILE to autorest.Authorizer
- **[dnsprovider]** gcloud: fixes issues when used with GKE Workload Identity
- **[dnsprovider]** oraclecloud: fix subdomain support

## [v3.4.0] - 2020-02-25

### Added:

- **[dnsprovider]** Add DNS provider for Constellix
- **[dnsprovider]** Add DNS provider for Servercow.
- **[dnsprovider]** Add DNS provider for Scaleway
- **[cli]** Add "LEGO_PATH" environment variable

### Changed:

- **[dnsprovider]** route53: allow custom client to be provided
- **[dnsprovider]** namecheap: allow external domains
- **[dnsprovider]** namecheap: add sandbox support.
- **[dnsprovider]** ovh: Improve provider documentation
- **[dnsprovider]** route53: Improve provider documentation

### Fixed:

- **[dnsprovider]** zoneee: fix subdomains.
- **[dnsprovider]** designate: Don't clean up managed records like SOA and NS
- **[dnsprovider]** dnspod: update lib.
- **[lib]** crypto: Treat CommonName as optional
- **[lib]** chore: update cenkalti/backoff to v4.

## [v3.3.0] - 2020-01-08

### Added:
- **[dnsprovider]** Add DNS provider for Checkdomain
- **[lib]** Add support to update account

### Changed:
- **[dnsprovider]** gcloud: Auto-detection of the project ID.
- **[lib]** Successfully parse private key PEM blocks

### Fixed:
- **[dnsprovider]** Update dnspod, because of API breaking changes.

## [v3.2.0] - 2019-11-10

### Added:
- **[dnsprovider]** Add support for autodns

### Changed:
- **[dnsprovider]** httpreq: Allow use environment vars from a `_FILE` file
- **[lib]** Don't deactivate valid authorizations
- **[lib]** Expose more SOA fields found by dns01.FindZoneByFqdn

### Fixed:
- **[dnsprovider]** use token as unique ID.

## [v3.1.0] - 2019-10-07

### Added:
- **[dnsprovider]** Add DNS provider for Liquid Web
- **[dnsprovider]** cloudflare: add support for API tokens
- **[cli]** feat: ease operation behind proxy servers

### Changed:
- **[dnsprovider]** cloudflare: update client
- **[dnsprovider]** linodev4: propagation timeout configuration.

### Fixed:
- **[dnsprovider]** ovh: fix int overflow.
- **[dnsprovider]** bindman: fix client version.

## [v3.0.2] - 2019-08-15

### Fixed:
- Invalid pseudo version (related to Cloudflare client).

## [v3.0.1] - 2019-08-14

There was a problem when creating the tag v3.0.1, this tag has been invalidate.

## [v3.0.0] - 2019-08-05

### Changed:
- migrate to go module (new import github.com/go-acme/lego/v3/)
- update DNS clients

## [v2.7.2] - 2019-07-30

### Fixed:
- **[dnsprovider]** vultr: quote TXT record

## [v2.7.1] - 2019-07-22

### Fixed:
- **[dnsprovider]** vultr: invalid record type.

## [v2.7.0] - 2019-07-17

### Added:
- **[dnsprovider]** Add DNS provider for namesilo
- **[dnsprovider]** Add DNS provider for versio.nl

### Changed:
- **[dnsprovider]** Update DNS providers libs.
- **[dnsprovider]** joker: support username and password.
- **[dnsprovider]** Vultr: Switch to official client

### Fixed:
- **[dnsprovider]** otc: Prevent sending empty body.

## [v2.6.0] - 2019-05-27

### Added:
- **[dnsprovider]** Add support for Joker.com DMAPI
- **[dnsprovider]** Add support for Bindman DNS provider
- **[dnsprovider]** Add support for EasyDNS
- **[lib]** Get an existing certificate by URL

### Changed:
- **[dnsprovider]** digitalocean: LEGO_EXPERIMENTAL_CNAME_SUPPORT support
- **[dnsprovider]** gcloud: Use fqdn to get zone Present/CleanUp
- **[dnsprovider]** exec: serial behavior
- **[dnsprovider]** manual: serial behavior.
- **[dnsprovider]** Strip newlines when reading environment variables from `_FILE` suffixed files.

### Fixed:
- **[cli]** fix: cli disable-cp option.
- **[dnsprovider]** gcloud: fix zone visibility.

## [v2.5.0] - 2019-04-17

### Added:
- **[cli]** Adds renew hook
- **[dnsprovider]** Adds 'Since' to DNS providers documentation

### Changed:
- **[dnsprovider]** gcloud: use public DNS zones
- **[dnsprovider]** route53: enhance documentation.

### Fixed:
- **[dnsprovider]** cloudns: fix TTL and status validation
- **[dnsprovider]** sakuracloud: supports concurrent update
- **[dnsprovider]** Disable authz when solve fail.
- Add tzdata to the Docker image.

## [v2.4.0] - 2019-03-25

- Migrate from xenolf/lego to go-acme/lego.

### Added:
- **[dnsprovider]** Add DNS Provider for Domain Offensive (do.de)
- **[dnsprovider]** Adds information about '_FILE' suffix.

### Fixed:
- **[cli,dnsprovider]** Add 'manual' provider to the output of dnshelp
- **[dnsprovider]** hostingde: Use provided ZoneName instead of domain
- **[dnsprovider]** pdns: fix wildcard with SANs

## [v2.3.0] - 2019-03-11

### Added:
- **[dnsprovider]** Add DNS Provider for ClouDNS.net
- **[dnsprovider]** Add DNS Provider for Oracle Cloud

### Changed:
- **[cli]** Adds log when no renewal.
- **[dnsprovider,lib]** Add a mechanism to wrap a PreCheckFunc
- **[dnsprovider]** oraclecloud: better way to get private key.
- **[dnsprovider]** exoscale: update library

### Fixed:
- **[dnsprovider]** OVH: Refresh zone after deleting challenge record
- **[dnsprovider]** oraclecloud: ttl config and timeout 
- **[dnsprovider]** hostingde: fix client fails if customer has no access to dns-groups
- **[dnsprovider]** vscale: getting sub-domain
- **[dnsprovider]** selectel: getting sub-domain
- **[dnsprovider]** vscale: fix TXT records clean up
- **[dnsprovider]** selectel: fix TXT records clean up

## [v2.2.0] - 2019-02-08

### Added:
- **[dnsprovider]** Add support for Openstack Designate as a DNS provider
- **[dnsprovider]** gcloud: Option to specify gcloud service account json by env as string
- **[experimental feature]** Resolve CNAME when creating dns-01 challenge. To enable: set `LEGO_EXPERIMENTAL_CNAME_SUPPORT` to `true`.
 
### Changed:
- **[cli]** Applies Let’s Encrypt’s recommendation about renew. The option `--days` of the command `renew` has a new default value (`30`)
- **[lib]** Uses a jittered exponential backoff

### Fixed:
- **[cli]** CLI and key type.
- **[dnsprovider]** httpreq: Endpoint with path.
- **[dnsprovider]** fastdns: Do not overwrite existing TXT records
- Log wildcard domain correctly in validation

## [v2.1.0] - 2019-01-24

### Added:
- **[dnsprovider]** Add support for zone.ee as a DNS provider.

### Changed:
- **[dnsprovider]** nifcloud: Change DNS base url.
- **[dnsprovider]** gcloud: More detailed information about Google Cloud DNS.

### Fixed:
- **[lib]** fix: OCSP, set HTTP client.
- **[dnsprovider]** alicloud: fix pagination.
- **[dnsprovider]** namecheap: fix panic.

## [v2.0.0] - 2019-01-09

### Added:
- **[cli,lib]** Option to disable the complete propagation Requirement
- **[lib,cli]** Support non-ascii domain name (punnycode)
- **[cli,lib]** Add configurable timeout when obtaining certificates
- **[cli]** Archive revoked certificates
- **[cli]** Add command to list certificates.
- **[cli]** support for renew with CSR
- **[cli]** add SAN on renew
- **[lib]** Adds `Remove` for challenges
- **[lib]** Add version to xenolf-acme in User-Agent.
- **[dnsprovider]** The ability for a DNS provider to solve the challenge sequentially
- **[dnsprovider]** Add DNS provider for "HTTP request".
- **[dnsprovider]** Add DNS Provider for Vscale
- **[dnsprovider]** Add DNS Provider for TransIP
- **[dnsprovider]** Add DNS Provider for inwx
- **[dnsprovider]** alidns: add support to handle more than 20 domains

### Changed:
- **[lib]** Check all challenges in a predictable order
- **[lib]** Poll authz URL instead of challenge URL
- **[lib]** Check all nameservers in a predictable order
- **[lib]** Logs every iteration of waiting for the propagation
- **[cli]** `--http`: enable HTTP challenge **important**
- **[cli]** `--http.port`: previously named `--http`
- **[cli]** `--http.webroot`: previously named `--webroot`
- **[cli]** `--http.memcached-host`: previously named `--memcached-host`
- **[cli]** `--tls`: enable TLS challenge **important**
- **[cli]** `--tls.port`:  previously named `--tls`
- **[cli]** `--dns.resolvers`: previously named `--dns-resolvers`
- **[cli]** the option `--days` of the command `renew` has default value (`15`)
- **[dnsprovider]** gcloud: Use GCE_PROJECT for project always, if specified

### Removed:
- **[lib]** Remove `SetHTTP01Address`
- **[lib]** Remove `SetTLSALPN01Address`
- **[lib]** Remove `Exclude`
- **[cli]** Remove `--exclude`, `-x` 

### Fixed:
- **[lib]** Fixes revocation for subdomains and non-ascii domains
- **[lib]** Disable pending authorizations
- **[dnsprovider]** transip: concurrent access to the API.
- **[dnsprovider]** gcloud: fix for wildcard
- **[dnsprovider]** Azure: Do not overwrite existing TXT records
- **[dnsprovider]** fix: Cloudflare error.

## [v1.2.0] - 2018-11-04

### Added:
- **[dnsprovider]** Add DNS Provider for ConoHa DNS
- **[dnsprovider]** Add DNS Provider for MyDNS.jp
- **[dnsprovider]** Add DNS Provider for Selectel

### Fixed:
- **[dnsprovider]** netcup: make unmarshalling of api-responses more lenient.

### Changed:
- **[dnsprovider]** aurora: change DNS client
- **[dnsprovider]** azure: update auth to support instance metadata service
- **[dnsprovider]** dnsmadeeasy: log response body on error
- **[lib]** TLS-ALPN-01: Update idPeAcmeIdentifierV1, draft refs.
- **[lib]** Do not send a JWS body when POSTing challenges.
- **[lib]** Support POST-as-GET.

## [v1.1.0] - 2018-10-16

### Added:
- **[lib]** TLS-ALPN-01 Challenge
- **[cli]** Add filename parameter
- **[dnsprovider]** Allow to configure TTL, interval and timeout
- **[dnsprovider]** Add support for reading DNS provider setup from files
- **[dnsprovider]** Add DNS Provider for ACME-DNS
- **[dnsprovider]** Add DNS Provider for ALIYUN DNS
- **[dnsprovider]** Add DNS Provider for DreamHost
- **[dnsprovider]** Add DNS provider for hosting.de
- **[dnsprovider]** Add DNS Provider for IIJ
- **[dnsprovider]** Add DNS Provider for netcup
- **[dnsprovider]** Add DNS Provider for NIFCLOUD DNS
- **[dnsprovider]** Add DNS Provider for SAKURA Cloud
- **[dnsprovider]** Add DNS Provider for Stackpath
- **[dnsprovider]** Add DNS Provider for VegaDNS
- **[dnsprovider]** exec: add EXEC_MODE=RAW support.
- **[dnsprovider]** cloudflare: support for CF_API_KEY and CF_API_EMAIL

### Fixed:
- **[lib]** Don't trust identifiers order.
- **[lib]** Fix missing issuer certificates from Let's Encrypt
- **[dnsprovider]** duckdns: fix TXT record update url
- **[dnsprovider]** duckdns: fix subsubdomain
- **[dnsprovider]** gcloud: update findTxtRecords to use Name=fqdn and Type=TXT
- **[dnsprovider]** lightsail: Fix Domain does not exist error
- **[dnsprovider]** ns1: use the authoritative zone and not the domain name
- **[dnsprovider]** ovh: check error to avoid panic due to nil client

### Changed:
- **[lib]** Submit all dns records up front, then validate serially

## [v1.0.0] - 2018-05-30

### Changed:
- **[lib]** ACME v2 Support.
- **[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.

## [v0.5.0] - 2018-05-29

### Added:
- **[dnsprovider]** Add DNS challenge provider `exec`
- **[dnsprovider]** Add DNS Provider for Akamai FastDNS
- **[dnsprovider]** Add DNS Provider for Bluecat DNS
- **[dnsprovider]** Add DNS Provider for CloudXNS
- **[dnsprovider]** Add DNS Provider for Duck DNS
- **[dnsprovider]** Add DNS Provider for Gandi Beta Platform (LiveDNS)
- **[dnsprovider]** Add DNS Provider for GleSYS API
- **[dnsprovider]** Add DNS Provider for GoDaddy
- **[dnsprovider]** Add DNS Provider for Lightsail
- **[dnsprovider]** Add DNS Provider for Name.com

### Fixed:
- **[dnsprovider]** Azure: Added missing environment variable in the comments
- **[dnsprovider]** PowerDNS: Fix zone URL, add leading slash.
- **[dnsprovider]** DNSimple: Fix api
- **[cli]** Correct help text for `--dns-resolvers` default.
- **[cli]** renew/revoke - don't panic on wrong account.
- **[lib]** Fix zone detection for cross-zone cnames.
- **[lib]** Use proxies from environment when making outbound http connections.

### Changed:
- **[lib]** Users of an effective top-level domain can use the DNS challenge.
- **[dnsprovider]** Azure: Refactor to work with new Azure SDK version.
- **[dnsprovider]** Cloudflare and Azure: Adding output of which envvars are missing.
- **[dnsprovider]** Dyn DNS: Slightly improve provider error reporting.
- **[dnsprovider]** Exoscale: update to latest egoscale version.
- **[dnsprovider]** Route53: Use NewSessionWithOptions instead of deprecated New.

## [0.4.1] - 2017-09-26

### Added:
- lib: A new DNS provider for OTC.
- lib: The `AWS_HOSTED_ZONE_ID` environment variable for the Route53 DNS provider to directly specify the zone.
- lib: The `RFC2136_TIMEOUT` enviroment variable to make the timeout for the RFC2136 provider configurable.
- lib: The `GCE_SERVICE_ACCOUNT_FILE` environment variable to specify a service account file for the Google Cloud DNS provider.

### Fixed:
- lib: Fixed an authentication issue with the latest Azure SDK.

## [0.4.0] - 2017-07-13

### Added:
- 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.

## [0.3.1] - 2016-04-19

### Added:
- lib: A new DNS provider for Vultr.

### Fixed:
- lib: DNS Provider for DigitalOcean could not handle subdomains properly.
- lib: handleHTTPError should only try to JSON decode error messages with the right content type.
- lib: The propagation checker for the DNS challenge would not retry on send errors.


## [0.3.0] - 2016-03-19

### Added:
- 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 `--accept-tos`  switch. Indicates your acceptance of the Let's Encrypt terms of service without prompting you.
- 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: A new type for challenge identifiers `Challenge`
- lib: A new interface for custom challenge providers `acme.ChallengeProvider`
- lib: A new interface for DNS-01 providers to allow for custom timeouts for the validation function `acme.ChallengeProviderTimeout`
- lib: SetChallengeProvider function. Pass a challenge identifier and a Provider to replace the default behaviour of a challenge.
- 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.

### Changed
- lib: ExcludeChallenges now expects to be passed an array of `Challenge` types.
- lib: HTTP-01 now supports custom solvers using the `ChallengeProvider` interface.
- lib: TLS-SNI-01 now supports custom solvers using the `ChallengeProvider` interface.
- 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.
 
### Removed
- CLI: The `rsa-key-size` switch was removed in favor of `key-type` to support EC keys.

### Fixed
- lib: Fixed a race condition in HTTP-01
- lib: Fixed an issue where status codes on ACME challenge responses could lead to no action being taken.
- lib: Fixed a regression when calling the Renew function with a SAN certificate.

## [0.2.0] - 2016-01-09

### Added:
- CLI: The `--exclude` or `-x` switch. To exclude a challenge from being solved.
- CLI: The `--http` switch. To set the listen address and port of HTTP based challenges. Supports `host:port` and `:port` for any interface.
- CLI: The `--tls` switch. To set the listen address and port of TLS based challenges. Supports `host:port` and `:port` for any interface.
- CLI: The `--reuse-key` switch for the `renew` operation. This lets you reuse an existing private key for renewals.
- lib: ExcludeChallenges function. Pass an array of challenge identifiers to exclude them from solving.
- lib: SetHTTPAddress function. Pass a port to set the listen port for HTTP based challenges.
- lib: SetTLSAddress function. Pass a port to set the listen port of TLS based challenges.
- lib: acme.UserAgent variable. Use this to customize the user agent on all requests sent by lego.

### Changed:
- lib: NewClient does no longer accept the optPort parameter
- lib: ObtainCertificate now returns a SAN certificate if you pass more then one domain.
- lib: GetOCSPForCert now returns the parsed OCSP response instead of just the status.
- lib: ObtainCertificate has a new parameter `privKey crypto.PrivateKey` which lets you reuse an existing private key for new certificates.
- lib: RenewCertificate now expects the PrivateKey property of the CertificateResource to be set only if you want to reuse the key.

### Removed:
- CLI: The `--port` switch was removed.
- lib: RenewCertificate does no longer offer to also revoke your old certificate.

### Fixed:
- CLI: Fix logic using the `--days` parameter for renew

## [0.1.1] - 2015-12-18

### Added:
- CLI: Added a way to automate renewal through a cronjob using the --days parameter to renew

### Changed:
- lib: Improved log output on challenge failures.

### Fixed:
- CLI: The short parameter for domains would not get accepted
- CLI: The cli did not return proper exit codes on error library errors.
- lib: RenewCertificate did not properly renew SAN certificates.

### Security
- lib: Fix possible DOS on GetOCSPForCert

## [0.1.0] - 2015-12-03
- Initial release

[0.3.1]: https://github.com/go-acme/lego/compare/v0.3.0...v0.3.1
[0.3.0]: https://github.com/go-acme/lego/compare/v0.2.0...v0.3.0
[0.2.0]: https://github.com/go-acme/lego/compare/v0.1.1...v0.2.0
[0.1.1]: https://github.com/go-acme/lego/compare/v0.1.0...v0.1.1
[0.1.0]: https://github.com/go-acme/lego/tree/v0.1.0