# Changelog

## Unreleased
[0.21.0...main](https://github.com/rust-lang/git2-rs/compare/git2-0.21.0...main)

### Added

- Added `Config::create_from_str()` for building an in-memory configuration from a string.
  [#1249](https://github.com/rust-lang/git2-rs/pull/1249)
- `Branch` now implements `PartialEq`, `Eq`, `PartialOrd`, and `Ord`,
  comparing the underlying `Reference`s.
  [#1234](https://github.com/rust-lang/git2-rs/pull/1234)
- Added `DiffDelta::similarity()`.
  [#1285](https://github.com/rust-lang/git2-rs/pull/1285)
- Implemented `Default` for `ApplyOptions`, `CherrypickOptions`, `DiffPatchidOptions`,
  `RepositoryInitOptions`, `RevertOptions`, `WorktreeAddOptions`, and `WorktreePruneOptions`.
  [#1291](https://github.com/rust-lang/git2-rs/pull/1291)
- Added `is_empty()` to `MessageTrailersStrs`, `MessageTrailersBytes`, `OdbObject`, and `Rebase`.
  [#1291](https://github.com/rust-lang/git2-rs/pull/1291)

### Changed

- ❗ `Branch::name()` now returns `Result<&str, Error>` instead of `Result<Option<&str>, Error>`,
  and a non-UTF-8 name is an error.
  [#1274](https://github.com/rust-lang/git2-rs/pull/1274)
- ❗ `Repository::get_attr()` now returns an error for a non-UTF-8 value instead of `Ok(None)`.
  [#1274](https://github.com/rust-lang/git2-rs/pull/1274)
- ❗ `StringArray` iterators now yield `Result<&str, Error>` instead of `Result<Option<&str>, Error>`.
  [#1266](https://github.com/rust-lang/git2-rs/pull/1266)
- ❗ The `Refspec` returned by `Remote::get_refspec()` now borrows the `Remote`
  instead of the `Repository`.
  Holding it past the `Remote` was a use-after-free.
  [#1287](https://github.com/rust-lang/git2-rs/pull/1287)
- ❗ `CloneLocal` is now `#[non_exhaustive]`, and the hidden `__Nonexhaustive` variant is removed.
  [#1291](https://github.com/rust-lang/git2-rs/pull/1291)
- ❗ Removed deprecated APIs:
  - `Diff::format_email()`, replaced by `Email::from_diff()`
  - `Oid::zero()`, replaced by `Oid::ZERO_SHA1`
  - `PackBuilder::hash()`, replaced by `PackBuilder::name()`
  - `RepoBuilder::hardlinks()`, replaced by `RepoBuilder::clone_local()`
  - `RepoBuilder::local()`, replaced by `RepoBuilder::clone_local()`
  - `Submodule::url_bytes()`, replaced by `Submodule::opt_url_bytes()`
  - `TransportProgress`, replaced by `IndexerProgress`
  <!-- -->
  [#1326](https://github.com/rust-lang/git2-rs/pull/1326)
  [#1327](https://github.com/rust-lang/git2-rs/pull/1327)
- `TreeWalkResult` now implements `From` instead of `Into` for its conversions to `i32` and `raw::git_treewalk_mode`.
  [#1291](https://github.com/rust-lang/git2-rs/pull/1291)
- Declared the minimum supported Rust version as 1.87.
  [#1277](https://github.com/rust-lang/git2-rs/pull/1277)

### Fixed

- These functions now return `false`, `None`, or an error instead of panicking
  when a string argument contains a NUL byte:
  - `ObjectType::from_str()`
  - `Refspec::src_matches()`
  - `Refspec::dst_matches()`
  - `Refspec::transform()`
  - `Refspec::rtransform()`
  - `Transaction::lock_ref()`
  - `Transaction::set_target()`
  - `Transaction::set_symbolic_target()`
  - `Transaction::set_reflog()`
  - `Transaction::remove()`
  - `Tree::get_name()`
  - `Tree::get_name_bytes()`
  - `Remote::is_valid_name()`
  - `Tag::is_valid_name()`
  <!-- -->
  [#1290](https://github.com/rust-lang/git2-rs/pull/1290)
  [#1294](https://github.com/rust-lang/git2-rs/pull/1294)
  [#1308](https://github.com/rust-lang/git2-rs/pull/1308)
- Fixed `merge_file()` failing with an empty error message
  when called before anything else initialized libgit2.
  [#1315](https://github.com/rust-lang/git2-rs/pull/1315)
- Fixed assertion failures in `Blame::blame_buffer()` with an empty buffer.
  [#1289](https://github.com/rust-lang/git2-rs/pull/1289)
- Fixed unsoundness in `MergeFileResult::content()` and `DiffBinaryFile::data()` for empty content.
  [#1279](https://github.com/rust-lang/git2-rs/pull/1279)
  [#1282](https://github.com/rust-lang/git2-rs/pull/1282)
- The `Index::add_all()`, `Index::remove_all()`, and `Index::update_all()` callbacks
  no longer panic when the matched pathspec is empty;
  they receive an empty slice instead.
  [#1267](https://github.com/rust-lang/git2-rs/pull/1267)
  [#1273](https://github.com/rust-lang/git2-rs/pull/1273)

### Documentation

- Fixed `RepoBuilder` documentation indentation.
  [#1298](https://github.com/rust-lang/git2-rs/pull/1298)
- Fixed intra-doc links.
  [#1319](https://github.com/rust-lang/git2-rs/pull/1319)

### Internals

- Skipped the `git_rebase_operation` check in systest, which fails to compile with clang 21.
  [#1261](https://github.com/rust-lang/git2-rs/pull/1261)
- Fixed changelogs and `html_root_url` missed in the 0.21.0 release.
  [#1264](https://github.com/rust-lang/git2-rs/pull/1264)
- Reduced the amount of code in `unsafe` blocks.
  [#1271](https://github.com/rust-lang/git2-rs/pull/1271)
  [#1306](https://github.com/rust-lang/git2-rs/pull/1306)
- Added clippy to CI and addressed its lints.
  [#1280](https://github.com/rust-lang/git2-rs/pull/1280)
  [#1292](https://github.com/rust-lang/git2-rs/pull/1292)
  [#1293](https://github.com/rust-lang/git2-rs/pull/1293)
  [#1299](https://github.com/rust-lang/git2-rs/pull/1299)
  [#1318](https://github.com/rust-lang/git2-rs/pull/1318)
- Switched to trusted publishing.
  [#1312](https://github.com/rust-lang/git2-rs/pull/1312)

## 0.21.0 - 2026-05-18
[0.20.4...main](https://github.com/rust-lang/git2-rs/compare/git2-0.20.4...main)

### Added

- Added experimental SHA256 repository support behind the new `unstable-sha256` Cargo feature,
  along with `*_ext` API variants that accept an `ObjectFormat`.
  [#1206](https://github.com/rust-lang/git2-rs/pull/1206)
- Added `opts::set_cache_max_size()` and `opts::get_cached_memory()`.
  [#1188](https://github.com/rust-lang/git2-rs/pull/1188)
- Added `Repository::object_format()` and a new `ObjectFormat` enum.
  [#1204](https://github.com/rust-lang/git2-rs/pull/1204)
- Added `Repository::set_config()`.
  [#1208](https://github.com/rust-lang/git2-rs/pull/1208)
- Added `merge_file()` along with `MergeFileInput`.
  [#1210](https://github.com/rust-lang/git2-rs/pull/1210)
- Added `Repository::refdb_compress()` for packing loose refs.
  [#1221](https://github.com/rust-lang/git2-rs/pull/1221)
- Added public `Refdb` type, along with `Repository::refdb()` and `Repository::set_refdb()`. `Repository::refdb_compress()` now delegates to `Refdb::compress()`.
  [#1228](https://github.com/rust-lang/git2-rs/pull/1228)
- Added `Revspec::into_objects()`.
  [#1230](https://github.com/rust-lang/git2-rs/pull/1230)
- Added `BlameHunk::final_committer()`, `BlameHunk::orig_committer()`, `BlameHunk::summary()`, and `BlameHunk::summary_bytes()`.
  [#1231](https://github.com/rust-lang/git2-rs/pull/1231)
- Implemented `Clone` for `Reference`.
  [#1233](https://github.com/rust-lang/git2-rs/pull/1233)
- Added `Repository::author_from_env()` and `Repository::committer_from_env()`.
  [#1237](https://github.com/rust-lang/git2-rs/pull/1237)
- Added `impl From<Utf8Error> for Error`.
  [#1239](https://github.com/rust-lang/git2-rs/pull/1239)

### Changed

- ❗ The `ssh`, `https`, and `cred` Cargo features are no longer enabled by default.
  Previously `default = ["ssh", "https"]`; now `default = []`.
  Enable them explicitly if you rely on credential helpers or transport support.
  [#1168](https://github.com/rust-lang/git2-rs/pull/1168)
- ❗ `CredentialHelper` and the `url` dependency are now gated behind the new `cred` Cargo feature.
  Enabling `ssh` or `https` transitively enables `cred`.
  [#1168](https://github.com/rust-lang/git2-rs/pull/1168)
- ❗ Updated to the 2021 edition.
  [#1173](https://github.com/rust-lang/git2-rs/pull/1173)
- ❗ Many string accessors that previously returned `Option<&str>`
  now return `Result<&str, Error>` or `Result<Option<&str>, Error>`,
  so callers can distinguish a missing value from a non-UTF-8 one.
  [#1241](https://github.com/rust-lang/git2-rs/pull/1241)
- ❗ `BlameHunk::final_signature`, `BlameHunk::final_committer`, `BlameHunk::orig_signature`, and `BlameHunk::orig_committer`
  now return `Option` to avoid segfaults when signature information is missing.
  [#1254](https://github.com/rust-lang/git2-rs/pull/1254)
- Bumped requirement to libgit2-sys 0.18.4, which updates libgit2 to 1.9.3.
  [#1242](https://github.com/rust-lang/git2-rs/pull/1242)

### Fixed

- Fixed `MergeOptions::skip_reuc()` to use the correct `GIT_MERGE_SKIP_REUC` flag.
  [#1194](https://github.com/rust-lang/git2-rs/pull/1194)
- `Repository::submodules()` now returns an `Error` when the underlying `git_submodule_lookup()` call to libgit2 fails, rather than panicking with a failed assertion.
  [#1220](https://github.com/rust-lang/git2-rs/pull/1220)
- `Reference::is_valid_name()` now propagates errors from `CString` conversion instead of panicking.
  [#1229](https://github.com/rust-lang/git2-rs/pull/1229)
- Fixed `Remote::list()` to return an empty list instead of erroring
  when the remote advertises no refs.
  [#1250](https://github.com/rust-lang/git2-rs/pull/1250)
- `ReferenceNames` now returns an `Err` for non-UTF-8 branch names instead of panicking.
  [#1239](https://github.com/rust-lang/git2-rs/pull/1239)

### Documentation

- Added note regarding potentially confusing behavior of `git_checkout_head`.
  [#1149](https://github.com/rust-lang/git2-rs/pull/1149)
- Added comments describing the `IndexAddOption` flags.
  [#1163](https://github.com/rust-lang/git2-rs/pull/1163)
- Updated README note about the `ssh` feature.
  [#1187](https://github.com/rust-lang/git2-rs/pull/1187)
- Improved function docs for `Repository::tag_foreach()`.
  [#1190](https://github.com/rust-lang/git2-rs/pull/1190)
- Fixed doc comment typo in `StatusOptions`.
  [#1199](https://github.com/rust-lang/git2-rs/pull/1199)
- Fixed missing period in module documentation.
  [#1219](https://github.com/rust-lang/git2-rs/pull/1219)
- Small wording fix in `Signature::from_raw_const()` docs.
  [#1222](https://github.com/rust-lang/git2-rs/pull/1222)
- Replaced discussion of missing gist in README.
  [#1223](https://github.com/rust-lang/git2-rs/pull/1223)
- Documented the bitflag methods for checking flags.
  [#1224](https://github.com/rust-lang/git2-rs/pull/1224)
- Clarified `CheckoutBuilder::update_index()` documentation.
  [#1232](https://github.com/rust-lang/git2-rs/pull/1232)
- Added more missing documentation.
  [#1235](https://github.com/rust-lang/git2-rs/pull/1235)
- Fixed typo in `Repository::stash_save_ext()` docs.
  [#1245](https://github.com/rust-lang/git2-rs/pull/1245)
- Added example showing retrieval of the latest commit for a file.
  [#1243](https://github.com/rust-lang/git2-rs/pull/1243)
- Replaced comma with period in `CheckoutBuilder::refresh()` docs.
  [#1252](https://github.com/rust-lang/git2-rs/pull/1252)

### Internals

- Dropped `civet`/`conduit` from dev-dependencies.
  [#1170](https://github.com/rust-lang/git2-rs/pull/1170)
- Updated dependencies.
  [#1171](https://github.com/rust-lang/git2-rs/pull/1171)
- Fixed lockfile verification in CI.
  [#1177](https://github.com/rust-lang/git2-rs/pull/1177)
- Updated CI and documentation to cover feature combinations.
  [#1182](https://github.com/rust-lang/git2-rs/pull/1182)
- Listed all examples that may need HTTP and SSH.
  [#1196](https://github.com/rust-lang/git2-rs/pull/1196)
- Allowed publishing from any ref in the publish workflow.
  [#1198](https://github.com/rust-lang/git2-rs/pull/1198)
- Bumped `time` from 0.3.41 to 0.3.47.
  [#1215](https://github.com/rust-lang/git2-rs/pull/1215)
- Added end-to-end test for branch name on initialization.
  [#1244](https://github.com/rust-lang/git2-rs/pull/1244)
- Added end-to-end test for stash count.
  [#1246](https://github.com/rust-lang/git2-rs/pull/1246)
- Added end-to-end tests demonstrating use of `Repository::statuses()`.
  [#1251](https://github.com/rust-lang/git2-rs/pull/1251)
- Internal refactors preparing for experimental SHA256 OID support.
  [#1201](https://github.com/rust-lang/git2-rs/pull/1201)
  [#1205](https://github.com/rust-lang/git2-rs/pull/1205)

## 0.20.4 - 2026-02-02
[0.20.3...0.20.4](https://github.com/rust-lang/git2-rs/compare/git2-0.20.3...git2-0.20.4)

### Fixed

- Fix undefined behavior when dereferencing empty `Buf`.
  [#1213](https://github.com/rust-lang/git2-rs/pull/1213)

## 0.20.3 - 2025-12-06
[0.20.2...0.20.3](https://github.com/rust-lang/git2-rs/compare/git2-0.20.2...git2-0.20.3)

### Changed

- Bumped requirement to libgit2-sys 0.18.3, which updates libgit2 from 1.9.0 to 1.9.2.
  [#1197](https://github.com/rust-lang/git2-rs/pull/1197)

## 0.20.2 - 2025-05-05
[0.20.1...0.20.2](https://github.com/rust-lang/git2-rs/compare/git2-0.20.1...git2-0.20.2)

### Added

- Added `Status::WT_UNREADABLE`.
  [#1151](https://github.com/rust-lang/git2-rs/pull/1151)

### Fixed

- Added missing codes for `GIT_EDIRECTORY`, `GIT_EMERGECONFLICT`, `GIT_EUNCHANGED`, `GIT_ENOTSUPPORTED`, and `GIT_EREADONLY` to `Error::raw_code`.
  [#1153](https://github.com/rust-lang/git2-rs/pull/1153)
- Fixed missing initialization in `Indexer::new`.
  [#1160](https://github.com/rust-lang/git2-rs/pull/1160)

## 0.20.1 - 2025-03-17
[0.20.0...0.20.1](https://github.com/rust-lang/git2-rs/compare/git2-0.20.0...git2-0.20.1)

### Added

- Added `Repository::branch_upstream_merge()`
  [#1131](https://github.com/rust-lang/git2-rs/pull/1131)
- Added `Index::conflict_get()`
  [#1134](https://github.com/rust-lang/git2-rs/pull/1134)
- Added `Index::conflict_remove()`
  [#1133](https://github.com/rust-lang/git2-rs/pull/1133)
- Added `opts::set_cache_object_limit()`
  [#1118](https://github.com/rust-lang/git2-rs/pull/1118)
- Added `Repo::merge_file_from_index()` and associated `MergeFileOptions` and `MergeFileResult`.
  [#1062](https://github.com/rust-lang/git2-rs/pull/1062)

### Changed

- The `url` dependency minimum raised to 2.5.4
  [#1128](https://github.com/rust-lang/git2-rs/pull/1128)
- Changed the tracing callback to abort the process if the callback panics instead of randomly detecting the panic in some other function.
  [#1121](https://github.com/rust-lang/git2-rs/pull/1121)
- Credential helper config (loaded with `CredentialHelper::config`) now checks for helpers that start with something that looks like an absolute path, rather than checking for a `/` or `\` anywhere in the helper string (which resolves an issue if the helper had arguments with `/` or `\`).
  [#1137](https://github.com/rust-lang/git2-rs/pull/1137)

### Fixed

- Fixed panic in `Remote::url_bytes` if the url is empty.
  [#1120](https://github.com/rust-lang/git2-rs/pull/1120)
- Fixed incorrect lifetimes on `Patch::delta`, `Patch::hunk`, and `Patch::line_in_hunk`. The return values must not outlive the `Patch`.
  [#1141](https://github.com/rust-lang/git2-rs/pull/1141)
- Bumped requirement to libgit2-sys 0.18.1, which fixes linking of advapi32 on Windows.
  [#1143](https://github.com/rust-lang/git2-rs/pull/1143)


## 0.20.0 - 2025-01-04
[0.19.0...0.20.0](https://github.com/rust-lang/git2-rs/compare/git2-0.19.0...git2-0.20.0)

### Added

- `Debug` is now implemented for `transport::Service`
  [#1074](https://github.com/rust-lang/git2-rs/pull/1074)
- Added `Repository::commondir`
  [#1079](https://github.com/rust-lang/git2-rs/pull/1079)
- Added `Repository::merge_base_octopus`
  [#1088](https://github.com/rust-lang/git2-rs/pull/1088)
- Restored impls for `PartialOrd`, `Ord`, and `Hash` for bitflags types that were inadvertently removed in a prior release.
  [#1096](https://github.com/rust-lang/git2-rs/pull/1096)
- Added `CheckoutBuilder::disable_pathspec_match`
  [#1107](https://github.com/rust-lang/git2-rs/pull/1107)
- Added `PackBuilder::write`
  [#1110](https://github.com/rust-lang/git2-rs/pull/1110)

### Changed

- ❗ Updated to libgit2 [1.9.0](https://github.com/libgit2/libgit2/releases/tag/v1.9.0)
  [#1111](https://github.com/rust-lang/git2-rs/pull/1111)
- ❗ Removed the `ssh_key_from_memory` Cargo feature, it was unused.
  [#1087](https://github.com/rust-lang/git2-rs/pull/1087)
- ❗ Errors from `Tree::walk` are now correctly reported to the caller.
  [#1098](https://github.com/rust-lang/git2-rs/pull/1098)
- ❗ The `trace_set` callback now takes a `&[u8]` instead of a `&str`.
  [#1071](https://github.com/rust-lang/git2-rs/pull/1071)
- ❗ `Error::last_error` now returns `Error` instead of `Option<Error>`.
  [#1072](https://github.com/rust-lang/git2-rs/pull/1072)

### Fixed

- Fixed `OdbReader::read` return value.
  [#1061](https://github.com/rust-lang/git2-rs/pull/1061)
- When a credential helper executes a shell command, don't pop open a console window on Windows.
  [#1075](https://github.com/rust-lang/git2-rs/pull/1075)

## 0.19.0 - 2024-06-13
[0.18.3...0.19.0](https://github.com/rust-lang/git2-rs/compare/git2-0.18.3...git2-0.19.0)

### Added

- Added `opts` functions to control server timeouts (`get_server_connect_timeout_in_milliseconds`, `set_server_connect_timeout_in_milliseconds`, `get_server_timeout_in_milliseconds`, `set_server_timeout_in_milliseconds`), and add `ErrorCode::Timeout`.
  [#1052](https://github.com/rust-lang/git2-rs/pull/1052)

### Changed

- ❗ Updated to libgit2 [1.8.1](https://github.com/libgit2/libgit2/releases/tag/v1.8.1)
  [#1032](https://github.com/rust-lang/git2-rs/pull/1032)
- Reduced size of the `Error` struct.
  [#1053](https://github.com/rust-lang/git2-rs/pull/1053)

### Fixed

- Fixed some callbacks to relay the error from the callback to libgit2.
  [#1043](https://github.com/rust-lang/git2-rs/pull/1043)

## 0.18.3 - 2024-03-18
[0.18.2...0.18.3](https://github.com/rust-lang/git2-rs/compare/git2-0.18.2...git2-0.18.3)

### Added

- Added `opts::` functions to get / set libgit2 mwindow options
  [#1035](https://github.com/rust-lang/git2-rs/pull/1035)


### Changed

- Updated examples to use clap instead of structopt
  [#1007](https://github.com/rust-lang/git2-rs/pull/1007)

## 0.18.2 - 2024-02-06
[0.18.1...0.18.2](https://github.com/rust-lang/git2-rs/compare/git2-0.18.1...git2-0.18.2)

### Added

- Added `opts::set_ssl_cert_file` and `opts::set_ssl_cert_dir` for setting Certificate Authority file locations.
  [#997](https://github.com/rust-lang/git2-rs/pull/997)
- Added `TreeIter::nth` which makes jumping ahead in the iterator more efficient.
  [#1004](https://github.com/rust-lang/git2-rs/pull/1004)
- Added `Repository::find_commit_by_prefix` to find a commit by a shortened hash.
  [#1011](https://github.com/rust-lang/git2-rs/pull/1011)
- Added `Repository::find_tag_by_prefix` to find a tag by a shortened hash.
  [#1015](https://github.com/rust-lang/git2-rs/pull/1015)
- Added `Repository::find_object_by_prefix` to find an object by a shortened hash.
  [#1014](https://github.com/rust-lang/git2-rs/pull/1014)

### Changed

- ❗ Updated to libgit2 [1.7.2](https://github.com/libgit2/libgit2/releases/tag/v1.7.2).
  This fixes [CVE-2024-24575](https://github.com/libgit2/libgit2/security/advisories/GHSA-54mf-x2rh-hq9v) and [CVE-2024-24577](https://github.com/libgit2/libgit2/security/advisories/GHSA-j2v7-4f6v-gpg8).
  [#1017](https://github.com/rust-lang/git2-rs/pull/1017)

## 0.18.1 - 2023-09-20
[0.18.0...0.18.1](https://github.com/rust-lang/git2-rs/compare/git2-0.18.0...git2-0.18.1)

### Added

- Added `FetchOptions::depth` to set the depth of a fetch or clone, adding support for shallow clones.
  [#979](https://github.com/rust-lang/git2-rs/pull/979)

### Fixed

- Fixed an internal data type (`TreeWalkCbData`) to not assume it is a transparent type while casting.
  [#989](https://github.com/rust-lang/git2-rs/pull/989)
- Fixed so that `DiffPatchidOptions` and `StashSaveOptions` are publicly exported allowing the corresponding APIs to actually be used.
  [#988](https://github.com/rust-lang/git2-rs/pull/988)

## 0.18.0 - 2023-08-28
[0.17.2...0.18.0](https://github.com/rust-lang/git2-rs/compare/0.17.2...git2-0.18.0)

### Added

- Added `Blame::blame_buffer` for getting blame data for a file that has been modified in memory.
  [#981](https://github.com/rust-lang/git2-rs/pull/981)

### Changed

- Updated to libgit2 [1.7.0](https://github.com/libgit2/libgit2/releases/tag/v1.7.0).
  [#968](https://github.com/rust-lang/git2-rs/pull/968)
- Updated to libgit2 [1.7.1](https://github.com/libgit2/libgit2/releases/tag/v1.7.1).
  [#982](https://github.com/rust-lang/git2-rs/pull/982)
- Switched from bitflags 1.x to 2.1. This brings some small changes to types generated by bitflags.
  [#973](https://github.com/rust-lang/git2-rs/pull/973)
- Changed `Revwalk::with_hide_callback` to take a mutable reference to its callback to enforce type safety.
  [#970](https://github.com/rust-lang/git2-rs/pull/970)
- Implemented `FusedIterator` for many iterators that can support it.
  [#955](https://github.com/rust-lang/git2-rs/pull/955)

### Fixed

- Fixed builds with cargo's `-Zminimal-versions`.
  [#960](https://github.com/rust-lang/git2-rs/pull/960)

## 0.17.2 - 2023-05-27
[0.17.1...0.17.2](https://github.com/rust-lang/git2-rs/compare/0.17.1...0.17.2)

### Added
- Added support for stashing with options (which can support partial stashing).
  [#930](https://github.com/rust-lang/git2-rs/pull/930)

## 0.17.1 - 2023-04-13
[0.17.0...0.17.1](https://github.com/rust-lang/git2-rs/compare/0.17.0...0.17.1)

### Changed

- Updated to libgit2 [1.6.4](https://github.com/libgit2/libgit2/releases/tag/v1.6.4).
  [#948](https://github.com/rust-lang/git2-rs/pull/948)

## 0.17.0 - 2023-04-02
[0.16.1...0.17.0](https://github.com/rust-lang/git2-rs/compare/0.16.1...0.17.0)

### Added

- Added `IntoIterator` implementation for `Statuses`.
  [#880](https://github.com/rust-lang/git2-rs/pull/880)
- Added `Reference::symbolic_set_target`
  [#893](https://github.com/rust-lang/git2-rs/pull/893)
- Added `Copy`, `Clone`, `Debug`, `PartialEq`, and `Eq` implementations for `AutotagOption` and `FetchPrune`.
  [#889](https://github.com/rust-lang/git2-rs/pull/889)
- Added `Eq` and `PartialEq` implementations for `Signature`.
  [#890](https://github.com/rust-lang/git2-rs/pull/890)
- Added `Repository::discover_path`.
  [#883](https://github.com/rust-lang/git2-rs/pull/883)
- Added `Submodule::repo_init`.
  [#914](https://github.com/rust-lang/git2-rs/pull/914)
- Added `Tag::is_valid_name`.
  [#882](https://github.com/rust-lang/git2-rs/pull/882)
- Added `Repository::set_head_bytes`.
  [#931](https://github.com/rust-lang/git2-rs/pull/931)
- Added the `Indexer` type which is a low-level API for storing and indexing pack files.
  [#911](https://github.com/rust-lang/git2-rs/pull/911)
- Added `Index::find_prefix`.
  [#903](https://github.com/rust-lang/git2-rs/pull/903)
- Added support for the deprecated group-writeable blob mode. This adds a new variant to `FileMode`.
  [#887](https://github.com/rust-lang/git2-rs/pull/887)
- Added `PushCallbacks::push_negotiation` callback and the corresponding `PushUpdate` type for getting receiving information about the updates to perform.
  [#926](https://github.com/rust-lang/git2-rs/pull/926)

### Changed

- Updated to libgit2 [1.6.3](https://github.com/libgit2/libgit2/blob/main/docs/changelog.md#v163).
  This brings in many changes, including better SSH host key support on Windows and better SSH host key algorithm negotiation.
  1.6.3 is now the minimum supported version.
  [#935](https://github.com/rust-lang/git2-rs/pull/935)
- Updated libssh2-sys from 0.2 to 0.3.
  This brings in numerous changes, including SHA2 algorithm support with RSA.
  [#919](https://github.com/rust-lang/git2-rs/pull/919)
- Changed `RemoteCallbacks::credentials` callback error handler to correctly set the libgit2 error class.
  [#918](https://github.com/rust-lang/git2-rs/pull/918)
- `DiffOptions::flag` now takes a `git_diff_option_t` type.
  [#935](https://github.com/rust-lang/git2-rs/pull/935)


## 0.16.1 - 2023-01-20
[0.16.0...0.16.1](https://github.com/rust-lang/git2-rs/compare/0.16.0...0.16.1)

### Changed
- Updated to [libgit2-sys 0.14.2+1.5.1](libgit2-sys/CHANGELOG.md#0142151---2023-01-20)

## 0.16.0 - 2023-01-10
[0.15.0...0.16.0](https://github.com/rust-lang/git2-rs/compare/0.15.0...0.16.0)

### Changed
- Added ability to get the SSH host key and its type.
  This includes an API breaking change to the `certificate_check` callback.
  [#909](https://github.com/rust-lang/git2-rs/pull/909)
- Updated to [libgit2-sys 0.14.1+1.5.0](libgit2-sys/CHANGELOG.md#0141150---2023-01-10)

## 0.15.0 - 2022-07-28
[0.14.4...0.15.0](https://github.com/rust-lang/git2-rs/compare/0.14.4...0.15.0)

### Added
- Added `Repository::tag_annotation_create` binding `git_tag_annotation_create`.
  [#845](https://github.com/rust-lang/git2-rs/pull/845)
- Added the `Email` type which represents a patch in mbox format for sending via email.
  Added the `EmailCreateOptions` struct to control formatting of the email.
  Deprecates `Diff::format_email`, use `Email::from_diff` instead.
  [#847](https://github.com/rust-lang/git2-rs/pull/847)
- Added `ErrorCode::Owner` to map to the new `GIT_EOWNER` errors.
  [#839](https://github.com/rust-lang/git2-rs/pull/839)
- Added `opts::set_verify_owner_validation` to set whether or not ownership validation is performed.
  [#839](https://github.com/rust-lang/git2-rs/pull/839)

### Changed
- Updated to [libgit2-sys 0.14.0+1.5.0](libgit2-sys/CHANGELOG.md#0140150---2022-07-28)
- Removed the `Iterator` implementation for `ConfigEntries` due to the unsound usage of the API which allowed values to be used after free.
  Added `ConfigEntries::next` and `ConfigEntries::for_each` for iterating over all entries in a safe manor.
  [#854](https://github.com/rust-lang/git2-rs/pull/854)

## 0.14.4 - 2022-05-19
[0.14.3...0.14.4](https://github.com/rust-lang/git2-rs/compare/0.14.3...0.14.4)

### Added
- Added `Commit::body` and `Commit::body_bytes` for retrieving the commit message body.
  [#835](https://github.com/rust-lang/git2-rs/pull/835)
- Added `Tree::get_name_bytes` to handle non-UTF-8 entry names.
  [#841](https://github.com/rust-lang/git2-rs/pull/841)

### Changed
- Updated to [libgit2-sys 0.13.4+1.4.2](libgit2-sys/CHANGELOG.md#0134142---2022-05-10)

## 0.14.3 - 2022-04-27
[0.14.2...0.14.3](https://github.com/rust-lang/git2-rs/compare/0.14.2...0.14.3)

### Changed
- Updated to [libgit2-sys 0.13.3+1.4.2](libgit2-sys/CHANGELOG.md#0133142---2022-04-27)

### Fixed
- Fixed the lifetime of `Remote::create_detached`.
  [#825](https://github.com/rust-lang/git2-rs/pull/825)

## 0.14.2 - 2022-03-10
[0.14.1...0.14.2](https://github.com/rust-lang/git2-rs/compare/0.14.1...0.14.2)

### Added
- Added `Odb::exists_ext` to checks if an object database has an object, with extended flags.
  [#818](https://github.com/rust-lang/git2-rs/pull/818)

### Changed
- Updated to [libgit2-sys 0.13.2+1.4.2](libgit2-sys/CHANGELOG.md#0132142---2022-03-10)

## 0.14.1 - 2022-02-28
[0.14.0...0.14.1](https://github.com/rust-lang/git2-rs/compare/0.14.0...0.14.1)

### Changed
- Updated to [libgit2-sys 0.13.1+1.4.2](libgit2-sys/CHANGELOG.md#0131142---2022-02-28)

## 0.14.0 - 2022-02-24
[0.13.25...0.14.0](https://github.com/rust-lang/git2-rs/compare/0.13.25...0.14.0)

### Added
- Added `opts::get_extensions` and `opts::set_extensions` to support git extensions.
  [#791](https://github.com/rust-lang/git2-rs/pull/791)
- Added `PackBuilder::name` and `PackBuilder::name_bytes`.
  [#806](https://github.com/rust-lang/git2-rs/pull/806)
    - Deprecated `PackBuilder::hash`, use `PackBuilder::name` instead.
- Added `FetchOptions::follow_redirects` and `PushOptions::follow_redirects`.
  [#806](https://github.com/rust-lang/git2-rs/pull/806)
- Added `StatusOptions::rename_threshold`.
  [#806](https://github.com/rust-lang/git2-rs/pull/806)

### Changed
- Updated to [libgit2-sys 0.13.0+1.4.1](libgit2-sys/CHANGELOG.md#0130141---2022-02-24)
  [#806](https://github.com/rust-lang/git2-rs/pull/806)
  [#811](https://github.com/rust-lang/git2-rs/pull/811)