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v1.2: changelog

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docs/changelog.md
vNext v1.2
----- -----
### Changes or improvements This is release v1.2.0, "Absacker". This release includes many new features: in particular, support for commit graphs, multi-pack indexes, and `core.longpaths` support.
* Branch and tag name validation functions have been introduced: This is meant to be the final minor release in the v1 lineage. v2.0 will be the next major release and will remove deprecated APIs and may include breaking changes.
`git_branch_name_is_valid` will check if a branch name is valid,
and `git_tag_name_is_valid` will check if a tag name is valid. ## Deprecated APIs
* Some remote and reference validity checking functions have been * revspec: rename git_revparse_mode_t to git_revspec_t by @ethomson in https://github.com/libgit2/libgit2/pull/5786
introduced with error reporting semantics. `git_remote_name_is_valid` * tree: deprecate `git_treebuilder_write_with_buffer` by @ethomson in https://github.com/libgit2/libgit2/pull/5815
replaces `git_remote_is_valid_name`. `git_reference_name_is_valid` * Deprecate `is_valid_name` functions; replace with `name_is_valid` functions by @ethomson in https://github.com/libgit2/libgit2/pull/5659
replaces `git_reference_is_valid_name`. Tthe former functions are * filter: stop taking git_buf as user input by @ethomson in https://github.com/libgit2/libgit2/pull/5859
deprecated. * remote: introduce remote_ready_cb, deprecate resolve_url callback by @ethomson in https://github.com/libgit2/libgit2/pull/6012
* Introduce `create_commit_cb`, deprecate `signing_cb` by @ethomson in https://github.com/libgit2/libgit2/pull/6016
### Breaking CMake configuration changes * filter: filter drivers stop taking git_buf as user input by @ethomson in https://github.com/libgit2/libgit2/pull/6011
* buf: deprecate public git_buf writing functions by @ethomson in https://github.com/libgit2/libgit2/pull/6017
The `MVSC_CRTDBG` configuration option is now `WIN32_LEAKCHECK`.
## New features
* winhttp: support optional client cert by @ianhattendorf in https://github.com/libgit2/libgit2/pull/5384
* Add support for additional SSH hostkey types. by @arroz in https://github.com/libgit2/libgit2/pull/5750
* Handle ipv6 addresses by @ethomson in https://github.com/libgit2/libgit2/pull/5741
* zlib: Add support for building with Chromium's zlib implementation by @lhchavez in https://github.com/libgit2/libgit2/pull/5748
* commit-graph: Introduce a parser for commit-graph files by @lhchavez in https://github.com/libgit2/libgit2/pull/5762
* patch: add owner accessor by @KOLANICH in https://github.com/libgit2/libgit2/pull/5731
* commit-graph: Support lookups of entries in a commit-graph by @lhchavez in https://github.com/libgit2/libgit2/pull/5763
* commit-graph: Introduce `git_commit_graph_needs_refresh()` by @lhchavez in https://github.com/libgit2/libgit2/pull/5764
* Working directory path validation by @ethomson in https://github.com/libgit2/libgit2/pull/5823
* Support `core.longpaths` on Windows by @ethomson in https://github.com/libgit2/libgit2/pull/5857
* git_reference_create_matching: Treat all-zero OID as "must be absent" by @novalis in https://github.com/libgit2/libgit2/pull/5842
* diff:add option to ignore blank line changes by @yuuri in https://github.com/libgit2/libgit2/pull/5853
* [Submodule] Git submodule dup by @lolgear in https://github.com/libgit2/libgit2/pull/5890
* commit-graph: Use the commit-graph in revwalks by @lhchavez in https://github.com/libgit2/libgit2/pull/5765
* commit-graph: Introduce `git_commit_list_generation_cmp` by @lhchavez in https://github.com/libgit2/libgit2/pull/5766
* graph: Create `git_graph_reachable_from_any()` by @lhchavez in https://github.com/libgit2/libgit2/pull/5767
* Support reading attributes from a specific commit by @ethomson in https://github.com/libgit2/libgit2/pull/5952
* [Branch] Branch upstream with format by @lolgear in https://github.com/libgit2/libgit2/pull/5861
* Dynamically load OpenSSL (optionally) by @ethomson in https://github.com/libgit2/libgit2/pull/5974
* Set refs/remotes/origin/HEAD to default branch when branch is specified by @A-Ovchinnikov-mx in https://github.com/libgit2/libgit2/pull/6010
* midx: Add a way to write multi-pack-index files by @lhchavez in https://github.com/libgit2/libgit2/pull/5404
* Use error code GIT_EAUTH for authentication failures by @josharian in https://github.com/libgit2/libgit2/pull/5395
* midx: Introduce git_odb_write_multi_pack_index() by @lhchavez in https://github.com/libgit2/libgit2/pull/5405
* Checkout dry-run by @J0Nes90 in https://github.com/libgit2/libgit2/pull/5841
* mbedTLS: Fix setting certificate directory by @mikezackles in https://github.com/libgit2/libgit2/pull/6004
* remote: introduce remote_ready_cb, deprecate resolve_url callback by @ethomson in https://github.com/libgit2/libgit2/pull/6012
* Introduce `create_commit_cb`, deprecate `signing_cb` by @ethomson in https://github.com/libgit2/libgit2/pull/6016
* commit-graph: Add a way to write commit-graph files by @lhchavez in https://github.com/libgit2/libgit2/pull/5778
## Bug fixes
* Define `git___load` when building with `-DTHREADSAFE=OFF` by @lhchavez in https://github.com/libgit2/libgit2/pull/5664
* Make the Windows leak detection more robust by @lhchavez in https://github.com/libgit2/libgit2/pull/5661
* Refactor "global" state by @ethomson in https://github.com/libgit2/libgit2/pull/5546
* threadstate: rename tlsdata when building w/o threads by @ethomson in https://github.com/libgit2/libgit2/pull/5668
* Include `${MBEDTLS_INCLUDE_DIR}` when compiling `crypt_mbedtls.c` by @staticfloat in https://github.com/libgit2/libgit2/pull/5685
* Fix the `-DTHREADSAFE=OFF` build by @lhchavez in https://github.com/libgit2/libgit2/pull/5690
* Add missing worktree_dir check and test case by @rbmclean in https://github.com/libgit2/libgit2/pull/5692
* msvc crtdbg -> win32 leakcheck by @ethomson in https://github.com/libgit2/libgit2/pull/5580
* Introduce GIT_ASSERT macros by @ethomson in https://github.com/libgit2/libgit2/pull/5327
* Also add the raw hostkey to `git_cert_hostkey` by @lhchavez in https://github.com/libgit2/libgit2/pull/5704
* Make the odb race-free by @lhchavez in https://github.com/libgit2/libgit2/pull/5595
* Make the pack and mwindow implementations data-race-free by @lhchavez in https://github.com/libgit2/libgit2/pull/5593
* Thread-free implementation by @ethomson in https://github.com/libgit2/libgit2/pull/5719
* Thread-local storage: a generic internal library (with no allocations) by @ethomson in https://github.com/libgit2/libgit2/pull/5720
* Friendlier getting started in the lack of git_libgit2_init by @ethomson in https://github.com/libgit2/libgit2/pull/5578
* Make git__strntol64() ~70%* faster by @lhchavez in https://github.com/libgit2/libgit2/pull/5735
* Cache the parsed submodule config when diffing by @lhchavez in https://github.com/libgit2/libgit2/pull/5727
* pack: continue zlib while we can make progress by @ethomson in https://github.com/libgit2/libgit2/pull/5740
* Avoid using `__builtin_mul_overflow` with the clang+32-bit combo by @lhchavez in https://github.com/libgit2/libgit2/pull/5742
* repository: use intptr_t's in the config map cache by @ethomson in https://github.com/libgit2/libgit2/pull/5746
* Build with NO_MMAP by @0xdky in https://github.com/libgit2/libgit2/pull/5583
* Add documentation for git_blob_filter_options.version by @JoshuaS3 in https://github.com/libgit2/libgit2/pull/5759
* blob: fix name of `GIT_BLOB_FILTER_ATTRIBUTES_FROM_HEAD` by @ethomson in https://github.com/libgit2/libgit2/pull/5760
* Cope with empty default branch by @ethomson in https://github.com/libgit2/libgit2/pull/5770
* README: instructions for using libgit2 without compiling by @ethomson in https://github.com/libgit2/libgit2/pull/5772
* Use `p_pwrite`/`p_pread` consistently throughout the codebase by @lhchavez in https://github.com/libgit2/libgit2/pull/5769
* midx: Fix a bug in `git_midx_needs_refresh()` by @lhchavez in https://github.com/libgit2/libgit2/pull/5768
* mwindow: Fix a bug in the LRU window finding code by @lhchavez in https://github.com/libgit2/libgit2/pull/5783
* refdb_fs: Check git_sortedcache wlock/rlock errors by @mamapanda in https://github.com/libgit2/libgit2/pull/5800
* index: Check git_vector_dup error in write_entries by @mamapanda in https://github.com/libgit2/libgit2/pull/5801
* Fix documentation formating on repository.h by @punkymaniac in https://github.com/libgit2/libgit2/pull/5806
* include: fix typos in comments by @tniessen in https://github.com/libgit2/libgit2/pull/5805
* Fix some typos by @aaronfranke in https://github.com/libgit2/libgit2/pull/5797
* Check git_signature_dup failure by @mamapanda in https://github.com/libgit2/libgit2/pull/5817
* merge: Check insert_head_ids error in create_virtual_base by @mamapanda in https://github.com/libgit2/libgit2/pull/5818
* winhttp: skip certificate check if unable to send request by @ianhattendorf in https://github.com/libgit2/libgit2/pull/5814
* Default to GIT_BRANCH_DEFAULT if init.defaultBranch is empty string by @ianhattendorf in https://github.com/libgit2/libgit2/pull/5832
* Fix diff_entrycount -> diff_num_deltas doc typo by @mjsir911 in https://github.com/libgit2/libgit2/pull/5838
* repo: specify init.defaultbranch is meant to be a branch name by @carlosmn in https://github.com/libgit2/libgit2/pull/5835
* repo: remove an inappropriate use of PASSTHROUGH by @carlosmn in https://github.com/libgit2/libgit2/pull/5834
* src: fix typos in header files by @tniessen in https://github.com/libgit2/libgit2/pull/5843
* test: clean up memory leaks by @ethomson in https://github.com/libgit2/libgit2/pull/5858
* buf: remove unnecessary buf_text namespace by @ethomson in https://github.com/libgit2/libgit2/pull/5860
* Fix bug in git_diff_find_similar. by @staktrace in https://github.com/libgit2/libgit2/pull/5839
* Fix issues with Proxy Authentication after httpclient refactor by @implausible in https://github.com/libgit2/libgit2/pull/5852
* tests: clean up memory leak, fail on leak for win32 by @ethomson in https://github.com/libgit2/libgit2/pull/5892
* Tolerate readlink size less than st_size by @dtolnay in https://github.com/libgit2/libgit2/pull/5900
* Define WINHTTP_NO_CLIENT_CERT_CONTEXT if needed by @jacquesg in https://github.com/libgit2/libgit2/pull/5929
* Update from regex to pcre licensing information in docs/contributing.md by @boretrk in https://github.com/libgit2/libgit2/pull/5916
* Consider files executable only if the user can execute them by @novalis in https://github.com/libgit2/libgit2/pull/5915
* git__timer: Limit ITimer usage to AmigaOS4 by @boretrk in https://github.com/libgit2/libgit2/pull/5936
* Fix memory leak in git_smart__connect by @punkymaniac in https://github.com/libgit2/libgit2/pull/5908
* config: fix included configs not refreshed more than once by @Batchyx in https://github.com/libgit2/libgit2/pull/5926
* Fix wrong time_t used in function by @NattyNarwhal in https://github.com/libgit2/libgit2/pull/5938
* fix check for ignoring of negate rules by @palmin in https://github.com/libgit2/libgit2/pull/5824
* Make `FIND_PACKAGE(PythonInterp)` prefer `python3` by @lhchavez in https://github.com/libgit2/libgit2/pull/5913
* git__timer: Allow compilation on systems without CLOCK_MONOTONIC by @boretrk in https://github.com/libgit2/libgit2/pull/5945
* stdintification: use int64_t and INT64_C instead of long long by @NattyNarwhal in https://github.com/libgit2/libgit2/pull/5941
* Optional stricter allocation checking (for `malloc(0)` cases) by @ethomson in https://github.com/libgit2/libgit2/pull/5951
* Variadic arguments aren't in C89 by @NattyNarwhal in https://github.com/libgit2/libgit2/pull/5948
* Fix typo in general.c by @Crayon2000 in https://github.com/libgit2/libgit2/pull/5954
* common.h: use inline when compiling for C99 and later by @boretrk in https://github.com/libgit2/libgit2/pull/5953
* Fix one memory leak in master by @lhchavez in https://github.com/libgit2/libgit2/pull/5957
* tests: reset odb backend priority by @ethomson in https://github.com/libgit2/libgit2/pull/5961
* cmake: extended futimens checking on macOS by @ethomson in https://github.com/libgit2/libgit2/pull/5962
* amiga: use ';' as path list separator on AmigaOS by @boretrk in https://github.com/libgit2/libgit2/pull/5978
* Respect the force flag on refspecs in git_remote_fetch by @alexjg in https://github.com/libgit2/libgit2/pull/5854
* Fix LIBGIT2_FILENAME not being passed to the resource compiler by @jairbubbles in https://github.com/libgit2/libgit2/pull/5994
* sha1dc: remove conditional for <sys/types.h> by @boretrk in https://github.com/libgit2/libgit2/pull/5997
* openssl: don't fail when we can't customize allocators by @ethomson in https://github.com/libgit2/libgit2/pull/5999
* C11 warnings by @boretrk in https://github.com/libgit2/libgit2/pull/6005
* open: input validation for empty segments in path by @boretrk in https://github.com/libgit2/libgit2/pull/5950
* Introduce GIT_WARN_UNUSED_RESULT by @lhchavez in https://github.com/libgit2/libgit2/pull/5802
* GCC C11 warnings by @boretrk in https://github.com/libgit2/libgit2/pull/6006
* array: check dereference from void * type by @boretrk in https://github.com/libgit2/libgit2/pull/6007
* Homogenize semantics for atomic-related functions by @lhchavez in https://github.com/libgit2/libgit2/pull/5747
* git_array_alloc: return objects of correct type by @boretrk in https://github.com/libgit2/libgit2/pull/6008
* CMake. hash sha1 header has been added. by @lolgear in https://github.com/libgit2/libgit2/pull/6013
* tests: change comments to c89 style by @boretrk in https://github.com/libgit2/libgit2/pull/6015
* Set Host Header to match CONNECT authority target by @lollipopman in https://github.com/libgit2/libgit2/pull/6022
* Fix worktree iteration when repository has no common directory by @kcsaul in https://github.com/libgit2/libgit2/pull/5943
## Documentation improvements
* Update README.md for additional Delphi bindings by @todaysoftware in https://github.com/libgit2/libgit2/pull/5831
* Fix documentation formatting by @punkymaniac in https://github.com/libgit2/libgit2/pull/5850
* docs: fix incorrect comment marker by @tiennou in https://github.com/libgit2/libgit2/pull/5897
* Patch documentation by @punkymaniac in https://github.com/libgit2/libgit2/pull/5903
* Fix misleading doc for `git_index_find` by @arxanas in https://github.com/libgit2/libgit2/pull/5910
* docs: stop mentioning libgit2's "master" branch by @Batchyx in https://github.com/libgit2/libgit2/pull/5925
* docs: fix some missing includes that cause Docurium to error out by @tiennou in https://github.com/libgit2/libgit2/pull/5917
* Patch documentation by @punkymaniac in https://github.com/libgit2/libgit2/pull/5940
## Development improvements
* WIP: .devcontainer: settings for a codespace workflow by @ethomson in https://github.com/libgit2/libgit2/pull/5508
## CI Improvements
* Add a ThreadSanitizer build by @lhchavez in https://github.com/libgit2/libgit2/pull/5597
* ci: more GitHub Actions by @ethomson in https://github.com/libgit2/libgit2/pull/5706
* ci: run coverity in the nightly builds by @ethomson in https://github.com/libgit2/libgit2/pull/5707
* ci: only report main branch in README status by @ethomson in https://github.com/libgit2/libgit2/pull/5708
* Fix the `ENABLE_WERROR=ON` build in Groovy Gorilla (gcc 10.2) by @lhchavez in https://github.com/libgit2/libgit2/pull/5715
* Re-enable the RC4 test by @carlosmn in https://github.com/libgit2/libgit2/pull/4418
* ci: run codeql by @ethomson in https://github.com/libgit2/libgit2/pull/5709
* github-actions: Also rename the main branch here by @lhchavez in https://github.com/libgit2/libgit2/pull/5771
* ci: don't use ninja on macOS by @ethomson in https://github.com/libgit2/libgit2/pull/5780
* ci: use GitHub for storing mingw-w64 build dependency by @ethomson in https://github.com/libgit2/libgit2/pull/5855
* docker: remove the entrypoint by @ethomson in https://github.com/libgit2/libgit2/pull/5980
* http: don't require a password by @ethomson in https://github.com/libgit2/libgit2/pull/5972
* ci: update nightly to use source path by @ethomson in https://github.com/libgit2/libgit2/pull/5989
* ci: add centos 7 and centos 8 by @ethomson in https://github.com/libgit2/libgit2/pull/5992
* ci: update centos builds by @ethomson in https://github.com/libgit2/libgit2/pull/5995
* ci: tag new containers with the latest tag by @ethomson in https://github.com/libgit2/libgit2/pull/6000
## Dependency updates
* ntlm: [ntlmclient](https://github.com/ethomson/ntlmclient) is now v0.9.1
**Full Changelog**: https://github.com/libgit2/libgit2/compare/v1.1.0...v1.2.0
v1.1 v1.1
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