diff --git a/stdlib/LibGit2/src/config.jl b/stdlib/LibGit2/src/config.jl
index 46b826d1ae04a..c0fe4d17aeba8 100644
--- a/stdlib/LibGit2/src/config.jl
+++ b/stdlib/LibGit2/src/config.jl
@@ -3,19 +3,19 @@
 """
     GitConfig(path::AbstractString, level::Consts.GIT_CONFIG=Consts.CONFIG_LEVEL_APP, force::Bool=false)
 
-Create a new `GitConfig` by loading configuration information from the file at
-`path`. See [`addfile`](@ref) for more information about the `level` and `force`
-options.
+Create a new `GitConfig` by loading configuration information from the file at `path`. See
+[`addfile`](@ref) for more information about the `level`, `repo` and `force` options.
 """
 function GitConfig(path::AbstractString,
                    level::Consts.GIT_CONFIG = Consts.CONFIG_LEVEL_APP,
+                   repo::Union{GitRepo, Nothing}=nothing,
                    force::Bool=false)
     # create new config object
     cfg_ptr_ptr = Ref{Ptr{Cvoid}}(C_NULL)
     @check ccall((:git_config_new, :libgit2), Cint, (Ptr{Ptr{Cvoid}},), cfg_ptr_ptr)
     cfg = GitConfig(cfg_ptr_ptr[])
     try
-        addfile(cfg, path, level, force)
+        addfile(cfg, path, level, repo, force)
     catch ex
         close(cfg)
         rethrow(ex)
@@ -65,22 +65,36 @@ function GitConfig(level::Consts.GIT_CONFIG = Consts.CONFIG_LEVEL_DEFAULT)
 end
 
 """
-    addfile(cfg::GitConfig, path::AbstractString, level::Consts.GIT_CONFIG=Consts.CONFIG_LEVEL_APP, force::Bool=false)
+    addfile(cfg::GitConfig, path::AbstractString,
+            level::Consts.GIT_CONFIG=Consts.CONFIG_LEVEL_APP,
+            repo::Union{GitRepo, Nothing} = nothing,
+            force::Bool=false)
 
 Add an existing git configuration file located at `path` to the current
 `GitConfig` `cfg`. If the file does not exist, it will be created.
-`level` sets the git configuration priority level and is determined by
-[`Consts.GIT_CONFIG`](@ref). If `force` is `false` and a configuration for
-the given priority level already exists, `addfile` will error. If `force` is
-`true`, the existing configuration will be replaced by the one in the file at
-`path`.
+
+ - `level` sets the git configuration priority level and is determined by
+[`Consts.GIT_CONFIG`](@ref).
+ - `repo` is an optional repository to allow parsing of conditional includes.
+ - If `force` is `false` and a configuration for the given priority level already exists,
+`addfile` will error. If `force` is `true`, the existing configuration will be replaced by
+the one in the file at `path`.
+
 """
 function addfile(cfg::GitConfig, path::AbstractString,
                  level::Consts.GIT_CONFIG = Consts.CONFIG_LEVEL_APP,
+                 repo::Union{GitRepo, Nothing} = nothing,
                  force::Bool=false)
-    @check ccall((:git_config_add_file_ondisk, :libgit2), Cint,
-                  (Ptr{Ptr{Cvoid}}, Cstring, Cint, Cint),
-                   cfg.ptr, path, Cint(level), Cint(force))
+    @static if LibGit2.VERSION >= v"0.27.0"
+        @check ccall((:git_config_add_file_ondisk, :libgit2), Cint,
+                     (Ptr{Ptr{Cvoid}}, Cstring, Cint, Ptr{Cvoid}, Cint),
+                     cfg.ptr, path, Cint(level), isa(repo, GitRepo) ? repo.ptr : C_NULL, Cint(force))
+    else
+        repo === nothing || error("repo argument is not supported in this version of LibGit2")
+        @check ccall((:git_config_add_file_ondisk, :libgit2), Cint,
+                     (Ptr{Ptr{Cvoid}}, Cstring, Cint, Cint),
+                     cfg.ptr, path, Cint(level), Cint(force))
+    end
 end
 
 function get(::Type{<:AbstractString}, c::GitConfig, name::AbstractString)
diff --git a/stdlib/LibGit2/src/types.jl b/stdlib/LibGit2/src/types.jl
index f4de1601036a7..d33e663691714 100644
--- a/stdlib/LibGit2/src/types.jl
+++ b/stdlib/LibGit2/src/types.jl
@@ -45,6 +45,9 @@ Matches the [`git_time`](https://libgit2.github.com/libgit2/#HEAD/type/git_time)
 struct TimeStruct
     time::Int64     # time in seconds from epoch
     offset::Cint    # timezone offset in minutes
+    @static if LibGit2.VERSION >= v"0.27.0"
+        sign::Cchar
+    end
 end
 
 """
@@ -830,6 +833,8 @@ The fields represent:
   * `flags`: flags for controlling any callbacks used in a status call.
   * `pathspec`: an array of paths to use for path-matching. The behavior of the path-matching
     will vary depending on the values of `show` and `flags`.
+  * The `baseline` is the tree to be used for comparison to the working directory and
+    index; defaults to HEAD.
 """
 @kwdef struct StatusOptions
     version::Cuint           = 1
@@ -839,6 +844,9 @@ The fields represent:
                                Consts.STATUS_OPT_RENAMES_HEAD_TO_INDEX |
                                Consts.STATUS_OPT_SORT_CASE_SENSITIVELY
     pathspec::StrArrayStruct
+    @static if LibGit2.VERSION >= v"0.27.0"
+        baseline::Ptr{Cvoid}
+    end
 end
 
 """