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-Git 2.26 Release Notes
-======================
-
-Updates since v2.25
--------------------
-
-Backward compatibility notes
-
- * "git rebase" uses a different backend that is based on the 'merge'
-   machinery by default.  There are a few known differences in the
-   behaviour from the traditional machinery based on patch+apply.
-
-   If your workflow is negatively affected by this change, please
-   report it to git@vger.kernel.org so that we can take a look into
-   it.  After doing so, you can set the 'rebase.backend' configuration
-   variable to 'apply', in order to use the old default behaviour in
-   the meantime.
-
-
-UI, Workflows & Features
-
- * Sample credential helper for using .netrc has been updated to work
-   out of the box.
-
- * gpg.minTrustLevel configuration variable has been introduced to
-   tell various signature verification codepaths the required minimum
-   trust level.
-
- * The command line completion (in contrib/) learned to complete
-   subcommands and arguments to "git worktree".
-
- * Disambiguation logic to tell revisions and pathspec apart has been
-   tweaked so that backslash-escaped glob special characters do not
-   count in the "wildcards are pathspec" rule.
-
- * One effect of specifying where the GIT_DIR is (either with the
-   environment variable, or with the "git --git-dir=<where> cmd"
-   option) is to disable the repository discovery.  This has been
-   placed a bit more stress in the documentation, as new users often
-   get confused.
-
- * Two help messages given when "git add" notices the user gave it
-   nothing to add have been updated to use advise() API.
-
- * A new version of fsmonitor-watchman hook has been introduced, to
-   avoid races.
-
- * "git config" learned to show in which "scope", in addition to in
-   which file, each config setting comes from.
-
- * The basic 7 colors learned the brighter counterparts
-   (e.g. "brightred").
-
- * "git sparse-checkout" learned a new "add" subcommand.
-
- * A configuration element used for credential subsystem can now use
-   wildcard pattern to specify for which set of URLs the entry
-   applies.
-
- * "git clone --recurse-submodules --single-branch" now uses the same
-   single-branch option when cloning the submodules.
-
- * "git rm" and "git stash" learns the new "--pathspec-from-file"
-   option.
-
- * "git am --show-current-patch" is a way to show the piece of e-mail
-   for the stopped step, which is not suitable to directly feed "git
-   apply" (it is designed to be a good "git am" input).  It learned a
-   new option to show only the patch part.
-
- * Handling of conflicting renames in merge-recursive have further
-   been made consistent with how existing codepaths try to mimic what
-   is done to add/add conflicts.
-
-
-Performance, Internal Implementation, Development Support etc.
-
- * Tell .editorconfig that in this project, *.txt files are indented
-   with tabs.
-
- * The test-lint machinery knew to check "VAR=VAL shell_function"
-   construct, but did not check "VAR= shell_function", which has been
-   corrected.
-
- * Replace "git config --bool" calls with "git config --type=bool" in
-   sample templates.
-
- * The effort to move "git-add--interactive" to C continues.
-
- * Improve error message generation for "git submodule add".
-
- * Preparation of test scripts for the day when the object names will
-   use SHA-256 continues.
-
- * Warn programmers about pretend_object_file() that allows the code
-   to tentatively use in-core objects.
-
- * The way "git pack-objects" reuses objects stored in existing pack
-   to generate its result has been improved.
-
- * The transport protocol version 2 becomes the default one.
-
- * Traditionally, we avoided threaded grep while searching in objects
-   (as opposed to files in the working tree) as accesses to the object
-   layer is not thread-safe.  This limitation is getting lifted.
-
- * "git rebase -i" (and friends) used to unnecessarily check out the
-   tip of the branch to be rebased, which has been corrected.
-
- * A low-level API function get_oid(), that accepts various ways to
-   name an object, used to issue end-user facing error messages
-   without l10n, which has been updated to be translatable.
-
- * Unneeded connectivity check is now disabled in a partial clone when
-   fetching into it.
-
- * Some rough edges in the sparse-checkout feature, especially around
-   the cone mode, have been cleaned up.
-
- * The diff-* plumbing family of subcommands now pay attention to the
-   diff.wsErrorHighlight configuration, which has been ignored before;
-   this allows "git add -p" to also show the whitespace problems to
-   the end user.
-
- * Some codepaths were given a repository instance as a parameter to
-   work in the repository, but passed the_repository instance to its
-   callees, which has been cleaned up (somewhat).
-
- * Memory footprint and performance of "git name-rev" has been
-   improved.
-
- * The object reachability bitmap machinery and the partial cloning
-   machinery were not prepared to work well together, because some
-   object-filtering criteria that partial clones use inherently rely
-   on object traversal, but the bitmap machinery is an optimization
-   to bypass that object traversal.  There however are some cases
-   where they can work together, and they were taught about them.
-
- * "git rebase" has learned to use the merge backend (i.e. the
-   machinery that drives "rebase -i") by default, while allowing
-   "--apply" option to use the "apply" backend (e.g. the moral
-   equivalent of "format-patch piped to am").  The rebase.backend
-   configuration variable can be set to customize.
-
- * Underlying machinery of "git bisect--helper" is being refactored
-   into pieces that are more easily reused.
-
-
-Fixes since v2.25
------------------
-
- * "git commit" gives output similar to "git status" when there is
-   nothing to commit, but without honoring the advise.statusHints
-   configuration variable, which has been corrected.
-
- * has_object_file() said "no" given an object registered to the
-   system via pretend_object_file(), making it inconsistent with
-   read_object_file(), causing lazy fetch to attempt fetching an
-   empty tree from promisor remotes.
-
- * Complete an update to tutorial that encourages "git switch" over
-   "git checkout" that was done only half-way.
-
- * C pedantry ;-) fix.
-
- * The code that tries to skip over the entries for the paths in a
-   single directory using the cache-tree was not careful enough
-   against corrupt index file.
-
- * Reduce unnecessary round-trip when running "ls-remote" over the
-   stateless RPC mechanism.
-
- * "git restore --staged" did not correctly update the cache-tree
-   structure, resulting in bogus trees to be written afterwards, which
-   has been corrected.
-
- * The code recently added to move to the entry beyond the ones in the
-   same directory in the index in the sparse-cone mode did not count
-   the number of entries to skip over incorrectly, which has been
-   corrected.
-
- * Rendering by "git log --graph" of ancestry lines leading to a merge
-   commit were made suboptimal to waste vertical space a bit with a
-   recent update, which has been corrected.
-
- * Work around test breakages caused by custom regex engine used in
-   libasan, when address sanitizer is used with more recent versions
-   of gcc and clang.
-
- * Minor bugfixes to "git add -i" that has recently been rewritten in C.
-
- * "git fetch --refmap=" option has got a better documentation.
-
- * "git checkout X" did not correctly fail when X is not a local
-   branch but could name more than one remote-tracking branches
-   (i.e. to be dwimmed as the starting point to create a corresponding
-   local branch), which has been corrected.
-   (merge fa74180d08 am/checkout-file-and-ref-ref-ambiguity later to maint).
-
- * Corner case bugs in "git clean" that stems from a (necessarily for
-   performance reasons) awkward calling convention in the directory
-   enumeration API has been corrected.
-
- * A fetch that is told to recursively fetch updates in submodules
-   inevitably produces reams of output, and it becomes hard to spot
-   error messages.  The command has been taught to enumerate
-   submodules that had errors at the end of the operation.
-   (merge 0222540827 es/fetch-show-failed-submodules-atend later to maint).
-
- * The "--recurse-submodules" option of various subcommands did not
-   work well when run in an alternate worktree, which has been
-   corrected.
-
- * Futureproofing a test not to depend on the current implementation
-   detail.
-
- * Running "git rm" on a submodule failed unnecessarily when
-   .gitmodules is only cache-dirty, which has been corrected.
-
- * C pedantry ;-) fix.
-
- * "git grep --no-index" should not get affected by the contents of
-   the .gitmodules file but when "--recurse-submodules" is given or
-   the "submodule.recurse" variable is set, it did.  Now these
-   settings are ignored in the "--no-index" mode.
-
- * Technical details of the bundle format has been documented.
-
- * Unhelpful warning messages during documentation build have been squelched.
-
- * "git rebase -i" identifies existing commits in its todo file with
-   their abbreviated object name, which could become ambiguous as it
-   goes to create new commits, and has a mechanism to avoid ambiguity
-   in the main part of its execution.  A few other cases however were
-   not covered by the protection against ambiguity, which has been
-   corrected.
-
- * Allow the rebase.missingCommitsCheck configuration to kick in when
-   "rebase --edit-todo" and "rebase --continue" restarts the procedure.
-   (merge 5a5445d878 ag/edit-todo-drop-check later to maint).
-
- * The way "git submodule status" reports an initialized but not yet
-   populated submodule has not been reimplemented correctly when a
-   part of the "git submodule" command was rewritten in C, which has
-   been corrected.
-   (merge f38c92452d pk/status-of-uncloned-submodule later to maint).
-
- * The code to automatically shrink the fan-out in the notes tree had
-   an off-by-one bug, which has been killed.
-
- * The index-pack code now diagnoses a bad input packstream that
-   records the same object twice when it is used as delta base; the
-   code used to declare a software bug when encountering such an
-   input, but it is an input error.
-
-
- * The code to compute the commit-graph has been taught to use a more
-   robust way to tell if two object directories refer to the same
-   thing.
-   (merge a7df60cac8 tb/commit-graph-object-dir later to maint).
-
- * "git remote rename X Y" needs to adjust configuration variables
-   (e.g. branch.<name>.remote) whose value used to be X to Y.
-   branch.<name>.pushRemote is now also updated.
-
- * Update to doc-diff.
-
- * Doc markup fix.
-
- * "git check-ignore" did not work when the given path is explicitly
-   marked as not ignored with a negative entry in the .gitignore file.
-
- * The merge-recursive machinery failed to refresh the cache entry for
-   a merge result in a couple of places, resulting in an unnecessary
-   merge failure, which has been fixed.
-
- * Fix for a bug revealed by a recent change to make the protocol v2
-   the default.
-
- * In rare cases "git worktree add <path>" could think that <path>
-   was already a registered worktree even when it wasn't and refuse
-   to add the new worktree. This has been corrected.
-   (merge bb69b3b009 es/worktree-avoid-duplication-fix later to maint).
-
- * "git push" should stop from updating a branch that is checked out
-   when receive.denyCurrentBranch configuration is set, but it failed
-   to pay attention to checkouts in secondary worktrees.  This has
-   been corrected.
-   (merge 4d864895a2 hv/receive-denycurrent-everywhere later to maint).
-
- * "git rebase BASE BRANCH" rebased/updated the tip of BRANCH and
-   checked it out, even when the BRANCH is checked out in a different
-   worktree.  This has been corrected.
-   (merge b5cabb4a96 es/do-not-let-rebase-switch-to-protected-branch later to maint).
-
- * "git describe" in a repository with multiple root commits sometimes
-   gave up looking for the best tag to describe a given commit with
-   too early, which has been adjusted.
-
- * "git merge signed-tag" while lacking the public key started to say
-   "No signature", which was utterly wrong.  This regression has been
-   reverted.
-
- * MinGW's poll() emulation has been improved.
-
- * "git show" and others gave an object name in raw format in its
-   error output, which has been corrected to give it in hex.
-
- * "git fetch" over HTTP walker protocol did not show any progress
-   output.  We inherently do not know how much work remains, but still
-   we can show something not to bore users.
-   (merge 7655b4119d rs/show-progress-in-dumb-http-fetch later to maint).
-
- * Both "git ls-remote -h" and "git grep -h" give short usage help,
-   like any other Git subcommand, but it is not unreasonable to expect
-   that the former would behave the same as "git ls-remote --head"
-   (there is no other sensible behaviour for the latter).  The
-   documentation has been updated in an attempt to clarify this.
-
- * Other code cleanup, docfix, build fix, etc.
-   (merge d0d0a357a1 am/update-pathspec-f-f-tests later to maint).
-   (merge f94f7bd00d am/test-pathspec-f-f-error-cases later to maint).
-   (merge c513a958b6 ss/t6025-modernize later to maint).
-   (merge b441717256 dl/test-must-fail-fixes later to maint).
-   (merge d031049da3 mt/sparse-checkout-doc-update later to maint).
-   (merge 145136a95a jc/skip-prefix later to maint).
-   (merge 5290d45134 jk/alloc-cleanups later to maint).
-   (merge 7a9f8ca805 rs/parse-options-concat-dup later to maint).
-   (merge 517b60564e rs/strbuf-insertstr later to maint).
-   (merge f696a2b1c8 jk/mailinfo-cleanup later to maint).
-   (merge de26f02db1 js/test-avoid-pipe later to maint).
-   (merge a2dc43414c es/doc-mentoring later to maint).
-   (merge 02bbbe9df9 es/worktree-cleanup later to maint).
-   (merge 2ce6d075fa rs/micro-cleanups later to maint).
-   (merge 27f182b3fc rs/blame-typefix-for-fingerprint later to maint).
-   (merge 3c29e21eb0 ma/test-cleanup later to maint).
-   (merge 240fc04f81 ag/rebase-remove-redundant-code later to maint).
-   (merge d68ce906c7 rs/commit-graph-code-simplification later to maint).
-   (merge a51d9e8f07 rj/t1050-use-test-path-is-file later to maint).
-   (merge fd0bc17557 kk/complete-diff-color-moved later to maint).
-   (merge 65bf820d0e en/test-cleanup later to maint).