1## `jwt-go` Version History
2
3#### 3.2.0
4
5* Added method `ParseUnverified` to allow users to split up the tasks of parsing and validation
6* HMAC signing method returns `ErrInvalidKeyType` instead of `ErrInvalidKey` where appropriate
7* Added options to `request.ParseFromRequest`, which allows for an arbitrary list of modifiers to parsing behavior. Initial set include `WithClaims` and `WithParser`. Existing usage of this function will continue to work as before.
8* Deprecated `ParseFromRequestWithClaims` to simplify API in the future.
9
10#### 3.1.0
11
12* Improvements to `jwt` command line tool
13* Added `SkipClaimsValidation` option to `Parser`
14* Documentation updates
15
16#### 3.0.0
17
18* **Compatibility Breaking Changes**: See MIGRATION_GUIDE.md for tips on updating your code
19	* Dropped support for `[]byte` keys when using RSA signing methods.  This convenience feature could contribute to security vulnerabilities involving mismatched key types with signing methods.
20	* `ParseFromRequest` has been moved to `request` subpackage and usage has changed
21	* The `Claims` property on `Token` is now type `Claims` instead of `map[string]interface{}`.  The default value is type `MapClaims`, which is an alias to `map[string]interface{}`.  This makes it possible to use a custom type when decoding claims.
22* Other Additions and Changes
23	* Added `Claims` interface type to allow users to decode the claims into a custom type
24	* Added `ParseWithClaims`, which takes a third argument of type `Claims`.  Use this function instead of `Parse` if you have a custom type you'd like to decode into.
25	* Dramatically improved the functionality and flexibility of `ParseFromRequest`, which is now in the `request` subpackage
26	* Added `ParseFromRequestWithClaims` which is the `FromRequest` equivalent of `ParseWithClaims`
27	* Added new interface type `Extractor`, which is used for extracting JWT strings from http requests.  Used with `ParseFromRequest` and `ParseFromRequestWithClaims`.
28	* Added several new, more specific, validation errors to error type bitmask
29	* Moved examples from README to executable example files
30	* Signing method registry is now thread safe
31	* Added new property to `ValidationError`, which contains the raw error returned by calls made by parse/verify (such as those returned by keyfunc or json parser)
32
33#### 2.7.0
34
35This will likely be the last backwards compatible release before 3.0.0, excluding essential bug fixes.
36
37* Added new option `-show` to the `jwt` command that will just output the decoded token without verifying
38* Error text for expired tokens includes how long it's been expired
39* Fixed incorrect error returned from `ParseRSAPublicKeyFromPEM`
40* Documentation updates
41
42#### 2.6.0
43
44* Exposed inner error within ValidationError
45* Fixed validation errors when using UseJSONNumber flag
46* Added several unit tests
47
48#### 2.5.0
49
50* Added support for signing method none.  You shouldn't use this.  The API tries to make this clear.
51* Updated/fixed some documentation
52* Added more helpful error message when trying to parse tokens that begin with `BEARER `
53
54#### 2.4.0
55
56* Added new type, Parser, to allow for configuration of various parsing parameters
57	* You can now specify a list of valid signing methods.  Anything outside this set will be rejected.
58	* You can now opt to use the `json.Number` type instead of `float64` when parsing token JSON
59* Added support for [Travis CI](https://travis-ci.org/dgrijalva/jwt-go)
60* Fixed some bugs with ECDSA parsing
61
62#### 2.3.0
63
64* Added support for ECDSA signing methods
65* Added support for RSA PSS signing methods (requires go v1.4)
66
67#### 2.2.0
68
69* Gracefully handle a `nil` `Keyfunc` being passed to `Parse`.  Result will now be the parsed token and an error, instead of a panic.
70
71#### 2.1.0
72
73Backwards compatible API change that was missed in 2.0.0.
74
75* The `SignedString` method on `Token` now takes `interface{}` instead of `[]byte`
76
77#### 2.0.0
78
79There were two major reasons for breaking backwards compatibility with this update.  The first was a refactor required to expand the width of the RSA and HMAC-SHA signing implementations.  There will likely be no required code changes to support this change.
80
81The second update, while unfortunately requiring a small change in integration, is required to open up this library to other signing methods.  Not all keys used for all signing methods have a single standard on-disk representation.  Requiring `[]byte` as the type for all keys proved too limiting.  Additionally, this implementation allows for pre-parsed tokens to be reused, which might matter in an application that parses a high volume of tokens with a small set of keys.  Backwards compatibilty has been maintained for passing `[]byte` to the RSA signing methods, but they will also accept `*rsa.PublicKey` and `*rsa.PrivateKey`.
82
83It is likely the only integration change required here will be to change `func(t *jwt.Token) ([]byte, error)` to `func(t *jwt.Token) (interface{}, error)` when calling `Parse`.
84
85* **Compatibility Breaking Changes**
86	* `SigningMethodHS256` is now `*SigningMethodHMAC` instead of `type struct`
87	* `SigningMethodRS256` is now `*SigningMethodRSA` instead of `type struct`
88	* `KeyFunc` now returns `interface{}` instead of `[]byte`
89	* `SigningMethod.Sign` now takes `interface{}` instead of `[]byte` for the key
90	* `SigningMethod.Verify` now takes `interface{}` instead of `[]byte` for the key
91* Renamed type `SigningMethodHS256` to `SigningMethodHMAC`.  Specific sizes are now just instances of this type.
92    * Added public package global `SigningMethodHS256`
93    * Added public package global `SigningMethodHS384`
94    * Added public package global `SigningMethodHS512`
95* Renamed type `SigningMethodRS256` to `SigningMethodRSA`.  Specific sizes are now just instances of this type.
96    * Added public package global `SigningMethodRS256`
97    * Added public package global `SigningMethodRS384`
98    * Added public package global `SigningMethodRS512`
99* Moved sample private key for HMAC tests from an inline value to a file on disk.  Value is unchanged.
100* Refactored the RSA implementation to be easier to read
101* Exposed helper methods `ParseRSAPrivateKeyFromPEM` and `ParseRSAPublicKeyFromPEM`
102
103#### 1.0.2
104
105* Fixed bug in parsing public keys from certificates
106* Added more tests around the parsing of keys for RS256
107* Code refactoring in RS256 implementation.  No functional changes
108
109#### 1.0.1
110
111* Fixed panic if RS256 signing method was passed an invalid key
112
113#### 1.0.0
114
115* First versioned release
116* API stabilized
117* Supports creating, signing, parsing, and validating JWT tokens
118* Supports RS256 and HS256 signing methods