diff --git a/Makefile b/Makefile
index 22e0f7e152859..ba96b5c71697c 100644
--- a/Makefile
+++ b/Makefile
@@ -282,6 +282,7 @@ else ifeq ($(JULIA_BUILD_MODE),debug)
 	-$(INSTALL_M) $(build_libdir)/libjulia-internal-debug.dll.a $(DESTDIR)$(libdir)/
 endif
 	-$(INSTALL_M) $(wildcard $(build_private_libdir)/*.a) $(DESTDIR)$(private_libdir)/
+	-rm -f $(DESTDIR)$(private_libdir)/sys-o.a
 
 	# We have a single exception; we want 7z.dll to live in private_libexecdir,
 	# not bindir, so that 7z.exe can find it.
diff --git a/base/boot.jl b/base/boot.jl
index 561be564d58f4..7199a0f158dbc 100644
--- a/base/boot.jl
+++ b/base/boot.jl
@@ -624,8 +624,8 @@ eval(Core, :(NamedTuple{names}(args::Tuple) where {names} =
 
 using .Intrinsics: sle_int, add_int
 
-eval(Core, :(NamedTuple{names,T}(args::T) where {names, T <: Tuple} =
-             $(Expr(:splatnew, :(NamedTuple{names,T}), :args))))
+eval(Core, :((NT::Type{NamedTuple{names,T}})(args::T) where {names, T <: Tuple} =
+             $(Expr(:splatnew, :NT, :args))))
 
 # constructors for built-in types
 
diff --git a/base/compiler/abstractinterpretation.jl b/base/compiler/abstractinterpretation.jl
index ab1d8c7c570f9..1bdba2a5d8924 100644
--- a/base/compiler/abstractinterpretation.jl
+++ b/base/compiler/abstractinterpretation.jl
@@ -2565,7 +2565,7 @@ function refine_partial_type(@nospecialize t)
         # if the first/second parameter of `NamedTuple` is known to be empty,
         # the second/first argument should also be empty tuple type,
         # so refine it here
-        return Const(NamedTuple())
+        return Const((;))
     end
     return t
 end
diff --git a/base/namedtuple.jl b/base/namedtuple.jl
index e489508bc55ea..94bd3e87fd55c 100644
--- a/base/namedtuple.jl
+++ b/base/namedtuple.jl
@@ -112,24 +112,24 @@ Core.NamedTuple
 
 if nameof(@__MODULE__) === :Base
 
-@eval function NamedTuple{names,T}(args::Tuple) where {names, T <: Tuple}
+@eval function (NT::Type{NamedTuple{names,T}})(args::Tuple) where {names, T <: Tuple}
     if length(args) != length(names::Tuple)
         throw(ArgumentError("Wrong number of arguments to named tuple constructor."))
     end
     # Note T(args) might not return something of type T; e.g.
     # Tuple{Type{Float64}}((Float64,)) returns a Tuple{DataType}
-    $(Expr(:splatnew, :(NamedTuple{names,T}), :(T(args))))
+    $(Expr(:splatnew, :NT, :(T(args))))
 end
 
-function NamedTuple{names, T}(nt::NamedTuple) where {names, T <: Tuple}
+function (NT::Type{NamedTuple{names, T}})(nt::NamedTuple) where {names, T <: Tuple}
     if @generated
-        Expr(:new, :(NamedTuple{names, T}),
-             Any[ :(let Tn = fieldtype(T, $n),
+        Expr(:new, :NT,
+             Any[ :(let Tn = fieldtype(NT, $n),
                       ntn = getfield(nt, $(QuoteNode(names[n])))
                       ntn isa Tn ? ntn : convert(Tn, ntn)
                   end) for n in 1:length(names) ]...)
     else
-        NamedTuple{names, T}(map(Fix1(getfield, nt), names))
+        NT(map(Fix1(getfield, nt), names))
     end
 end
 
@@ -145,14 +145,11 @@ function NamedTuple{names}(nt::NamedTuple) where {names}
     end
 end
 
-NamedTuple{names, T}(itr) where {names, T <: Tuple} = NamedTuple{names, T}(T(itr))
-NamedTuple{names}(itr) where {names} = NamedTuple{names}(Tuple(itr))
+(NT::Type{NamedTuple{names, T}})(itr) where {names, T <: Tuple} = NT(T(itr))
+(NT::Type{NamedTuple{names}})(itr) where {names} = NT(Tuple(itr))
 
 NamedTuple(itr) = (; itr...)
 
-# avoids invalidating Union{}(...)
-NamedTuple{names, Union{}}(itr::Tuple) where {names} = throw(MethodError(NamedTuple{names, Union{}}, (itr,)))
-
 end # if Base
 
 # Like NamedTuple{names, T} as a constructor, but omits the additional
diff --git a/base/reshapedarray.jl b/base/reshapedarray.jl
index bcb47a9359392..70fb18b511710 100644
--- a/base/reshapedarray.jl
+++ b/base/reshapedarray.jl
@@ -228,7 +228,8 @@ offset_if_vec(i::Integer, axs::Tuple) = i
 
 @inline function isassigned(A::ReshapedArrayLF, index::Int)
     @boundscheck checkbounds(Bool, A, index) || return false
-    @inbounds ret = isassigned(parent(A), index)
+    indexparent = index - firstindex(A) + firstindex(parent(A))
+    @inbounds ret = isassigned(parent(A), indexparent)
     ret
 end
 @inline function isassigned(A::ReshapedArray{T,N}, indices::Vararg{Int, N}) where {T,N}
@@ -241,7 +242,8 @@ end
 
 @inline function getindex(A::ReshapedArrayLF, index::Int)
     @boundscheck checkbounds(A, index)
-    @inbounds ret = parent(A)[index]
+    indexparent = index - firstindex(A) + firstindex(parent(A))
+    @inbounds ret = parent(A)[indexparent]
     ret
 end
 @inline function getindex(A::ReshapedArray{T,N}, indices::Vararg{Int,N}) where {T,N}
@@ -265,7 +267,8 @@ end
 
 @inline function setindex!(A::ReshapedArrayLF, val, index::Int)
     @boundscheck checkbounds(A, index)
-    @inbounds parent(A)[index] = val
+    indexparent = index - firstindex(A) + firstindex(parent(A))
+    @inbounds parent(A)[indexparent] = val
     val
 end
 @inline function setindex!(A::ReshapedArray{T,N}, val, indices::Vararg{Int,N}) where {T,N}
diff --git a/deps/JuliaSyntax.version b/deps/JuliaSyntax.version
index 7f124715024ce..e7c119e7442a6 100644
--- a/deps/JuliaSyntax.version
+++ b/deps/JuliaSyntax.version
@@ -1,4 +1,4 @@
-JULIASYNTAX_BRANCH = main
+JULIASYNTAX_BRANCH = release-0.4
 JULIASYNTAX_SHA1 = 4f1731d6ce7c2465fc21ea245110b7a39f34658a
 JULIASYNTAX_GIT_URL := https://github.com/JuliaLang/JuliaSyntax.jl.git
 JULIASYNTAX_TAR_URL = https://api.github.com/repos/JuliaLang/JuliaSyntax.jl/tarball/$1
diff --git a/deps/checksums/NetworkOptions-0bd33455cf3c77f2f87bf64167b64611dc5ff128.tar.gz/md5 b/deps/checksums/NetworkOptions-0bd33455cf3c77f2f87bf64167b64611dc5ff128.tar.gz/md5
deleted file mode 100644
index 36c148c3deeba..0000000000000
--- a/deps/checksums/NetworkOptions-0bd33455cf3c77f2f87bf64167b64611dc5ff128.tar.gz/md5
+++ /dev/null
@@ -1 +0,0 @@
-193abc96d1ea3a83096ba8401acbc5fa
diff --git a/deps/checksums/NetworkOptions-0bd33455cf3c77f2f87bf64167b64611dc5ff128.tar.gz/sha512 b/deps/checksums/NetworkOptions-0bd33455cf3c77f2f87bf64167b64611dc5ff128.tar.gz/sha512
deleted file mode 100644
index 26f1e116e4e6f..0000000000000
--- a/deps/checksums/NetworkOptions-0bd33455cf3c77f2f87bf64167b64611dc5ff128.tar.gz/sha512
+++ /dev/null
@@ -1 +0,0 @@
-17f7567be44c2ff3e2c567311cd716191127d0d0f9a4a226d7c06003a5b455343dd8e308032f942bb0a5b95e4b5defc530cc2cda9dfff482aab6f688080c20e7
diff --git a/deps/checksums/NetworkOptions-8eec5cb0acec4591e6db3c017f7499426cd8e352.tar.gz/md5 b/deps/checksums/NetworkOptions-8eec5cb0acec4591e6db3c017f7499426cd8e352.tar.gz/md5
new file mode 100644
index 0000000000000..7f391aac1e64d
--- /dev/null
+++ b/deps/checksums/NetworkOptions-8eec5cb0acec4591e6db3c017f7499426cd8e352.tar.gz/md5
@@ -0,0 +1 @@
+d2ccb9b91b0700bfb5ac7c01a03b4322
diff --git a/deps/checksums/NetworkOptions-8eec5cb0acec4591e6db3c017f7499426cd8e352.tar.gz/sha512 b/deps/checksums/NetworkOptions-8eec5cb0acec4591e6db3c017f7499426cd8e352.tar.gz/sha512
new file mode 100644
index 0000000000000..b7db226225d75
--- /dev/null
+++ b/deps/checksums/NetworkOptions-8eec5cb0acec4591e6db3c017f7499426cd8e352.tar.gz/sha512
@@ -0,0 +1 @@
+051223ab45dce692c0bbea0755cc0057bb3322a40659c092007799932a10cc23e80ee6b88fa0d86f28af5e7fe5a455cc9fb8267c76af0cd2b425cf2718629e91
diff --git a/deps/checksums/Pkg-70525539d3157891445abe806962f780f64143cd.tar.gz/md5 b/deps/checksums/Pkg-70525539d3157891445abe806962f780f64143cd.tar.gz/md5
deleted file mode 100644
index 59643e2d8da35..0000000000000
--- a/deps/checksums/Pkg-70525539d3157891445abe806962f780f64143cd.tar.gz/md5
+++ /dev/null
@@ -1 +0,0 @@
-8a7db649c8ee8f4506925d1364af66ce
diff --git a/deps/checksums/Pkg-70525539d3157891445abe806962f780f64143cd.tar.gz/sha512 b/deps/checksums/Pkg-70525539d3157891445abe806962f780f64143cd.tar.gz/sha512
deleted file mode 100644
index eb8207f429689..0000000000000
--- a/deps/checksums/Pkg-70525539d3157891445abe806962f780f64143cd.tar.gz/sha512
+++ /dev/null
@@ -1 +0,0 @@
-53c74a0630e1e57e7cf1dac0de84297de6a623ff913affbaf2a887c5b6ea68782985dff5f453a4fddc662b12e8b3a11e61a2a29bb72afde3bbc5d1f5c00bb0bd
diff --git a/deps/checksums/Pkg-f487626b090b91493828cbcde30eed96fb9f8e8f.tar.gz/md5 b/deps/checksums/Pkg-f487626b090b91493828cbcde30eed96fb9f8e8f.tar.gz/md5
new file mode 100644
index 0000000000000..87f249089c1e2
--- /dev/null
+++ b/deps/checksums/Pkg-f487626b090b91493828cbcde30eed96fb9f8e8f.tar.gz/md5
@@ -0,0 +1 @@
+9ebc3751d48af21e9f932cfcb3b18781
diff --git a/deps/checksums/Pkg-f487626b090b91493828cbcde30eed96fb9f8e8f.tar.gz/sha512 b/deps/checksums/Pkg-f487626b090b91493828cbcde30eed96fb9f8e8f.tar.gz/sha512
new file mode 100644
index 0000000000000..c41c5df61579f
--- /dev/null
+++ b/deps/checksums/Pkg-f487626b090b91493828cbcde30eed96fb9f8e8f.tar.gz/sha512
@@ -0,0 +1 @@
+adeedc81fee8360d427e3870d7b7861d0e653128c59c877ab1173284f19506ff2beeea063281ced3f5411be6a25dcca7c566e16eba21b7e91bbdcb2f5de8e268
diff --git a/deps/checksums/SHA-2d1f84e6f8417a1a368de48318640d948b023e7a.tar.gz/md5 b/deps/checksums/SHA-2d1f84e6f8417a1a368de48318640d948b023e7a.tar.gz/md5
deleted file mode 100644
index f682cf3518658..0000000000000
--- a/deps/checksums/SHA-2d1f84e6f8417a1a368de48318640d948b023e7a.tar.gz/md5
+++ /dev/null
@@ -1 +0,0 @@
-de53629eb0b1ce98ac6b245bdbf14e9d
diff --git a/deps/checksums/SHA-2d1f84e6f8417a1a368de48318640d948b023e7a.tar.gz/sha512 b/deps/checksums/SHA-2d1f84e6f8417a1a368de48318640d948b023e7a.tar.gz/sha512
deleted file mode 100644
index 870098ef7aada..0000000000000
--- a/deps/checksums/SHA-2d1f84e6f8417a1a368de48318640d948b023e7a.tar.gz/sha512
+++ /dev/null
@@ -1 +0,0 @@
-71cdc58b03cc4f42f8c4b9c2353d6f94d77b4ac5c9d374387d435c57ba85e966f3be4e8c8447b34e184cb8e665c42b3cd2c9d9742c86f7fb5c71a85df5087966
diff --git a/deps/checksums/SHA-e1af7dd0863dee14a83550faf4b6e08971993ce8.tar.gz/md5 b/deps/checksums/SHA-e1af7dd0863dee14a83550faf4b6e08971993ce8.tar.gz/md5
new file mode 100644
index 0000000000000..13396f419845b
--- /dev/null
+++ b/deps/checksums/SHA-e1af7dd0863dee14a83550faf4b6e08971993ce8.tar.gz/md5
@@ -0,0 +1 @@
+75f38189d82446a19495d79daf5e2ed8
diff --git a/deps/checksums/SHA-e1af7dd0863dee14a83550faf4b6e08971993ce8.tar.gz/sha512 b/deps/checksums/SHA-e1af7dd0863dee14a83550faf4b6e08971993ce8.tar.gz/sha512
new file mode 100644
index 0000000000000..de4244eea7021
--- /dev/null
+++ b/deps/checksums/SHA-e1af7dd0863dee14a83550faf4b6e08971993ce8.tar.gz/sha512
@@ -0,0 +1 @@
+f3bddf45ae180a00f51d04b5307b993220be7ddaef01cd36bc921a19e70c8268f302d39dd08b8fe7367763fde61c05fb9dab80d5374cc029262ce3640bab5037
diff --git a/deps/checksums/compilersupportlibraries b/deps/checksums/compilersupportlibraries
index 2dcfecfb56b26..48843f21c0feb 100644
--- a/deps/checksums/compilersupportlibraries
+++ b/deps/checksums/compilersupportlibraries
@@ -1,92 +1,92 @@
-CompilerSupportLibraries.v1.1.0+0.aarch64-apple-darwin-libgfortran5.tar.gz/md5/20ebaad57850393b6ac9fa924e511fe4
-CompilerSupportLibraries.v1.1.0+0.aarch64-apple-darwin-libgfortran5.tar.gz/sha512/020de4d8b0ff6bedbadaa305ff8445e6849f12053762ea4aa68412d1ec763dbd86f479587a2fbb862487f1feb04d976c38099ddf3887817a3d32b3f029cf85b1
-CompilerSupportLibraries.v1.1.0+0.aarch64-linux-gnu-libgfortran3.tar.gz/md5/e084a4374be45ba52279682c640449bc
-CompilerSupportLibraries.v1.1.0+0.aarch64-linux-gnu-libgfortran3.tar.gz/sha512/d4aedf5c08e13fd9596476330f69e374af64373f7bca0e4df6cbb4d1710d695dce23f2655ee368c3df2049b7b0ca1848c9e01a437fadc0eb08937c6a7cdf2a27
-CompilerSupportLibraries.v1.1.0+0.aarch64-linux-gnu-libgfortran4.tar.gz/md5/6b3975f25be16ea1370ef0bf353ac752
-CompilerSupportLibraries.v1.1.0+0.aarch64-linux-gnu-libgfortran4.tar.gz/sha512/d6298517be1ce350a61d1c1a1bf9b27a541382aa8ccf3e86eeadd7c47e2fe88facd17139a3878adb939df869a330264a942d280e3468d53b61325df7e31daaad
-CompilerSupportLibraries.v1.1.0+0.aarch64-linux-gnu-libgfortran5.tar.gz/md5/7134b79b71059d4da79224df1ca0853e
-CompilerSupportLibraries.v1.1.0+0.aarch64-linux-gnu-libgfortran5.tar.gz/sha512/e66590a37e756ff33a84514a7ca2bbe2e1517f3e901bc66e40139e8a318d6cd8e329e0c2a7c557ea39e6db2f56802d485ab81b87be1373717b78474b1c7bf7d7
-CompilerSupportLibraries.v1.1.0+0.aarch64-linux-musl-libgfortran3.tar.gz/md5/fd37789f5745a17cc9a85902cebf4698
-CompilerSupportLibraries.v1.1.0+0.aarch64-linux-musl-libgfortran3.tar.gz/sha512/9ff4e9be39f115af2e5bb6a5c88b3940f15a010952cebf39da22e7a5c6744be2f905bebccba092db0a89cf82e8c0e1a3e61b74d4204d2a6648b5469f3ccb0d12
-CompilerSupportLibraries.v1.1.0+0.aarch64-linux-musl-libgfortran4.tar.gz/md5/e9286ae9299c57d5df7b795997b4adf5
-CompilerSupportLibraries.v1.1.0+0.aarch64-linux-musl-libgfortran4.tar.gz/sha512/ea64858481095e0374be330aa2ac84b394bc3e5351b9326137c9cd5d15e6bec47d6e5f672a216572dcb80c3aa6fcb08950cc10157c264f429a93c235028d79a4
-CompilerSupportLibraries.v1.1.0+0.aarch64-linux-musl-libgfortran5.tar.gz/md5/b19c6cbc5b2a62ea76dea64b0f8ae488
-CompilerSupportLibraries.v1.1.0+0.aarch64-linux-musl-libgfortran5.tar.gz/sha512/090d659f7e4a7034117e2bb2dcad0ef544cdca898bf032222cdb81d32af6e6528be842d2cf55839fe397c2ace05dd4ce920cf98cc96324ae18832016516e6cc3
-CompilerSupportLibraries.v1.1.0+0.armv6l-linux-gnueabihf-libgfortran3.tar.gz/md5/26fb41031e1b797373aea7a7c4d7be3c
-CompilerSupportLibraries.v1.1.0+0.armv6l-linux-gnueabihf-libgfortran3.tar.gz/sha512/8fd0b6c990681789caec528067b4bcb9661f9c0a5e0268927d4e88565fa7005db3b592fb8e7830cf32b3fb4ce54d6db747dfde896f93bd38f65b7a1290a2399a
-CompilerSupportLibraries.v1.1.0+0.armv6l-linux-gnueabihf-libgfortran4.tar.gz/md5/6ed3f3e94f662177c3cf3c3734a5c1ec
-CompilerSupportLibraries.v1.1.0+0.armv6l-linux-gnueabihf-libgfortran4.tar.gz/sha512/b8165630cced0f7880cb6fd6263cf39bbbbda668eccc94219720078a85a641c3b1b20648960041aa3a51108ab6df087b909c572d0690aacf8b99dc5496ff7db6
-CompilerSupportLibraries.v1.1.0+0.armv6l-linux-gnueabihf-libgfortran5.tar.gz/md5/86060cbbe966a59f18f92a9b2fab95d4
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+CompilerSupportLibraries.v1.1.1+0.i686-w64-mingw32-libgfortran3.tar.gz/sha512/0b7907811a13d09b7b33203c7e46888308c7d6fcf5d69790babafc39f640541551f784264247f159a552f15df1ddd061c421a93b983d838d3bd7f85ba6427f70
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+CompilerSupportLibraries.v1.1.1+0.i686-w64-mingw32-libgfortran4.tar.gz/sha512/d7285691fbe1318e48e061d678e54890762cc16996652a34b190924cc1462d24ab0b08729945eb25f4bef60e60d50f3e78db57d4cda0302b8ba579db8a1311e1
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+CompilerSupportLibraries.v1.1.1+0.powerpc64le-linux-gnu-libgfortran3.tar.gz/sha512/a0dd93905f0ede4da5e2fbacf2579154db8ac8e9963c77fb62284489686f2aa372925b3341742d86430a839267421af55f6e1e413473d17f13a1a199e6a904a0
+CompilerSupportLibraries.v1.1.1+0.powerpc64le-linux-gnu-libgfortran4.tar.gz/md5/06ee6aaeca78b3e9005f53f1fa32731f
+CompilerSupportLibraries.v1.1.1+0.powerpc64le-linux-gnu-libgfortran4.tar.gz/sha512/ff0e33ce9f93b3a867cf409b95e763efbc8f4dde65ed19107eb14d29460d084f253e03ebd6375f1da996182b3d96e1fda4abff06507258da9a89ece36663db84
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+CompilerSupportLibraries.v1.1.1+0.powerpc64le-linux-gnu-libgfortran5.tar.gz/sha512/a7c9053a8c1b784cb6459762f26e0c2106a9758cbe2aefe8975a14aaaf61b8a08e51c465e733e44d01537beb59d467c57e536ebd8b27b7b68f46945174c469c7
+CompilerSupportLibraries.v1.1.1+0.x86_64-apple-darwin-libgfortran3.tar.gz/md5/a147bf3a6d6550c177b8a784b9b02e21
+CompilerSupportLibraries.v1.1.1+0.x86_64-apple-darwin-libgfortran3.tar.gz/sha512/c6f7a13f0195eae8f7ad980a4b24de9b155be69c4437522723411f9866a4aee3c5b350ee2f0c95f41f19aba43acaca78309881157e8498df0664c902d0c05a5d
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+CompilerSupportLibraries.v1.1.1+0.x86_64-apple-darwin-libgfortran4.tar.gz/sha512/5752bac310d80ed2dc1fc3d6580300d185787b9b933e31c8e0f572099abd0727d9483da8f9af858f706e96a183d2b10702c44381a080438cbb17d6459321ccfb
+CompilerSupportLibraries.v1.1.1+0.x86_64-apple-darwin-libgfortran5.tar.gz/md5/ad0f0e2fe3e7d147a0a27271a2aba0fc
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+CompilerSupportLibraries.v1.1.1+0.x86_64-linux-gnu-libgfortran3.tar.gz/sha512/0e9d6dcc4b8fddaaa94a26a46e915d33fb474f8a8ee14edd4d1c7e774846c44c5c5d852649a4f70409c99ac0e1d458077b7f0eb7dc0b0326ee8b625644d7074d
+CompilerSupportLibraries.v1.1.1+0.x86_64-linux-gnu-libgfortran4.tar.gz/md5/039d37f813b183c75feebadd21011eb6
+CompilerSupportLibraries.v1.1.1+0.x86_64-linux-gnu-libgfortran4.tar.gz/sha512/05e7291de1fd2520247402f0db9d348fdd7a02d8dd9133ac65701f88d237110a3cc6c6e2c5717364ab786b6e6063038ec10c9605e77bc4dbe1064a0e77617f5d
+CompilerSupportLibraries.v1.1.1+0.x86_64-linux-gnu-libgfortran5.tar.gz/md5/a985f13a85eb14d1b6339ba4983dc372
+CompilerSupportLibraries.v1.1.1+0.x86_64-linux-gnu-libgfortran5.tar.gz/sha512/27468ccd5642e6e11bd5972684518a0fb883bf4835ac18f5279c3fce97b1779131c7d9e39d8de26a15c293c832946334e964919f51d7679cd0569ce82b938579
+CompilerSupportLibraries.v1.1.1+0.x86_64-linux-musl-libgfortran3.tar.gz/md5/9d86ce2fe481ea97a1fd098bd47d524c
+CompilerSupportLibraries.v1.1.1+0.x86_64-linux-musl-libgfortran3.tar.gz/sha512/a865a4127bacaedd81b6c81279f6a44bc3497ab29a0401f66da1abfc0738ea459be9f158d06969c161a65925739665084bec5f8650a8cd1e8f0d08f1f44d729f
+CompilerSupportLibraries.v1.1.1+0.x86_64-linux-musl-libgfortran4.tar.gz/md5/86d9db869a7af6c96dea39f5d9d90505
+CompilerSupportLibraries.v1.1.1+0.x86_64-linux-musl-libgfortran4.tar.gz/sha512/01e0c69b04138989200ded92eddae6ff1873d3a440d17273d08bee40d53b2929e35bfd14be051074fe78671cac34ac2dd7360c1571790ee52f94a5921de42a65
+CompilerSupportLibraries.v1.1.1+0.x86_64-linux-musl-libgfortran5.tar.gz/md5/e72d28df4bcb60ab2f3389046e7c83a8
+CompilerSupportLibraries.v1.1.1+0.x86_64-linux-musl-libgfortran5.tar.gz/sha512/cac193a26328ddeff5f7bcc3d7207101c574f9bdb1bff5c2b925315c5c2404a2fdb6591d1968f30931373fbfcae9bda784c72e65580ad3acc398448cd193f65d
+CompilerSupportLibraries.v1.1.1+0.x86_64-unknown-freebsd-libgfortran3.tar.gz/md5/35642304a9a2f435cf5214b2715198fe
+CompilerSupportLibraries.v1.1.1+0.x86_64-unknown-freebsd-libgfortran3.tar.gz/sha512/a67f41ba31c99a064f504f508711537f9e90089ca5352bfc2698c3fcd3e499ca716f07ffeac4fb1b88c2c934f7f380f262af8c863d3b16ac7e805d5c805ab358
+CompilerSupportLibraries.v1.1.1+0.x86_64-unknown-freebsd-libgfortran4.tar.gz/md5/01df0fbb265e5ff1a480a7a5e23b0835
+CompilerSupportLibraries.v1.1.1+0.x86_64-unknown-freebsd-libgfortran4.tar.gz/sha512/57a79f2b8e846c1514dcb18420f26ae2889962040f410b746836cab4395749155fa9cd9d00d4c25954c0ffa72f9f3823b1b50688a20ddf675301f64e0d4b5c7e
+CompilerSupportLibraries.v1.1.1+0.x86_64-unknown-freebsd-libgfortran5.tar.gz/md5/1f1f6380ce8815cc9cedcea0b40860e7
+CompilerSupportLibraries.v1.1.1+0.x86_64-unknown-freebsd-libgfortran5.tar.gz/sha512/a88ea8af8c8df792861812bfdf7f1bcaae31582ab78ce78b47a0dc6fd57b93441c0471f529ce23877131ac9701c6eed72ce89241746e18271f3686fbd718138c
+CompilerSupportLibraries.v1.1.1+0.x86_64-w64-mingw32-libgfortran3.tar.gz/md5/38fc8c445a1a610db40a7609155e22d6
+CompilerSupportLibraries.v1.1.1+0.x86_64-w64-mingw32-libgfortran3.tar.gz/sha512/085652c7ca583c3623611ca9262b70765c9936c9feb5f9034b2c6b6d6677a7a1d7d201b83d82d0d268f3190bd1a62eab0124e8fae3625407dee7f1df89d4106c
+CompilerSupportLibraries.v1.1.1+0.x86_64-w64-mingw32-libgfortran4.tar.gz/md5/f3f89eb3c2e441fde6e6b9c1c1a61183
+CompilerSupportLibraries.v1.1.1+0.x86_64-w64-mingw32-libgfortran4.tar.gz/sha512/c53f79e20ad043ab099873f38ece98c6bed22950610ba88b9c178a4bd943039cc426473828d509deb8c65c93309da1de87bdf36fb3954b8f8047277c418fe2e0
+CompilerSupportLibraries.v1.1.1+0.x86_64-w64-mingw32-libgfortran5.tar.gz/md5/024f7133425db23e215dc55589bb9171
+CompilerSupportLibraries.v1.1.1+0.x86_64-w64-mingw32-libgfortran5.tar.gz/sha512/819945496ea48dd44d8c0f12a11a358b7d1ebf198d60fbad576d74ddee68cdea98070cdd11ca96567d0c772ec007c03cbc83ff5c7d2ad737cbd486fe0c9afcd5
diff --git a/deps/checksums/openblas b/deps/checksums/openblas
index dd7c493c22941..0d176cafe7aca 100644
--- a/deps/checksums/openblas
+++ b/deps/checksums/openblas
@@ -91,4 +91,4 @@ OpenBLAS.v0.3.23+4.x86_64-w64-mingw32-libgfortran4.tar.gz/sha512/03099f50dc81427
 OpenBLAS.v0.3.23+4.x86_64-w64-mingw32-libgfortran5.tar.gz/md5/92f18261534ceb1e3181c4b6071b0063
 OpenBLAS.v0.3.23+4.x86_64-w64-mingw32-libgfortran5.tar.gz/sha512/38894868b7d7638e61a503a30c88ddf910af4e0ff8b9480b97f4ee7598088ba5c4735d1d85575deb1e593d8b6baf8fc549c85c8ba8d1b9683eb58cffb3f9e670
 openblas-394a9fbafe9010b76a2615c562204277a956eb52.tar.gz/md5/7ccaaaafc8176b87dc59d4e527ca4d9f
-openblas-394a9fbafe9010b76a2615c562204277a956eb52.tar.gz/sha512/12235f0459469b483a393844c228be5ad4bc60575bbe4b3238198f2480b7b457e4b0609730ce6d99530bb82e1d16fdd2338ceed6d28c952e6fff0da7f571f863
+openblas-394a9fbafe9010b76a2615c562204277a956eb52.tar.gz/sha512/3d1a096a738aa70c6c6c15acb9ac7fb77f3c8f9684c7f22dac1ceb7921c85131e3a7e55c893b6aed01f85f1bdff124d0b3a3fae3ca2dc5c0aae192c38c012417
diff --git a/src/aotcompile.cpp b/src/aotcompile.cpp
index 5fc9a30fc35c3..e2a2fb20b419f 100644
--- a/src/aotcompile.cpp
+++ b/src/aotcompile.cpp
@@ -1492,7 +1492,13 @@ void jl_dump_native_impl(void *native_code,
         TheTriple.setObjectFormat(Triple::COFF);
     } else if (TheTriple.isOSDarwin()) {
         TheTriple.setObjectFormat(Triple::MachO);
-        TheTriple.setOS(llvm::Triple::MacOSX);
+        SmallString<16> Str;
+        Str += "macosx";
+        if (TheTriple.isAArch64())
+            Str += "11.0.0"; // Update this if MACOSX_VERSION_MIN changes
+        else
+            Str += "10.14.0";
+        TheTriple.setOSName(Str);
     }
     Optional<Reloc::Model> RelocModel;
     if (TheTriple.isOSLinux() || TheTriple.isOSFreeBSD()) {
diff --git a/src/builtins.c b/src/builtins.c
index 6d32c439d5b6e..e4bc75bdcd28d 100644
--- a/src/builtins.c
+++ b/src/builtins.c
@@ -1125,6 +1125,8 @@ static jl_value_t *get_fieldtype(jl_value_t *t, jl_value_t *f, int dothrow)
             tt = ((jl_tvar_t*)tt)->ub;
         if (tt == (jl_value_t*)jl_any_type)
             return (jl_value_t*)jl_any_type;
+        if (tt == (jl_value_t*)jl_bottom_type)
+            return (jl_value_t*)jl_bottom_type;
         JL_GC_PUSH1(&f);
         if (jl_is_symbol(f))
             f = jl_box_long(field_index+1);
diff --git a/src/codegen-stubs.c b/src/codegen-stubs.c
index de5f2a2770c04..b48ad7b98791f 100644
--- a/src/codegen-stubs.c
+++ b/src/codegen-stubs.c
@@ -38,7 +38,7 @@ JL_DLLEXPORT void jl_register_fptrs_fallback(uint64_t image_base, const struct _
     (void)image_base; (void)fptrs; (void)linfos; (void)n;
 }
 
-JL_DLLEXPORT jl_code_instance_t *jl_generate_fptr_fallback(jl_method_instance_t *mi JL_PROPAGATES_ROOT, size_t world)
+JL_DLLEXPORT jl_code_instance_t *jl_generate_fptr_fallback(jl_method_instance_t *mi JL_PROPAGATES_ROOT, size_t world, int *did_compile)
 {
     return NULL;
 }
diff --git a/src/codegen.cpp b/src/codegen.cpp
index 53a278d42d102..dd3376c334a37 100644
--- a/src/codegen.cpp
+++ b/src/codegen.cpp
@@ -5031,7 +5031,7 @@ static void emit_phinode_assign(jl_codectx_t &ctx, ssize_t idx, jl_value_t *r)
             Value *ptr = ctx.builder.CreateSelect(isboxed,
                 maybe_bitcast(ctx, decay_derived(ctx, ptr_phi), getInt8PtrTy(ctx.builder.getContext())),
                 maybe_bitcast(ctx, decay_derived(ctx, phi), getInt8PtrTy(ctx.builder.getContext())));
-            jl_cgval_t val = mark_julia_slot(ptr, phiType, Tindex_phi, ctx.tbaa().tbaa_stack); // XXX: this TBAA is wrong for ptr_phi
+            jl_cgval_t val = mark_julia_slot(ptr, phiType, Tindex_phi, best_tbaa(ctx.tbaa(), phiType));
             val.Vboxed = ptr_phi;
             ctx.PhiNodes.push_back(std::make_tuple(val, BB, dest, ptr_phi, r));
             ctx.SAvalues.at(idx) = val;
@@ -6679,6 +6679,7 @@ static jl_cgval_t emit_cfunction(jl_codectx_t &ctx, jl_value_t *output_type, con
     if (ctx.emission_context.TargetTriple.isAArch64() || ctx.emission_context.TargetTriple.isARM() || ctx.emission_context.TargetTriple.isPPC64()) {
         if (nest) {
             emit_error(ctx, "cfunction: closures are not supported on this platform");
+            JL_GC_POP();
             return jl_cgval_t();
         }
     }
diff --git a/src/gc.c b/src/gc.c
index 272fe42a43958..0a456eced511e 100644
--- a/src/gc.c
+++ b/src/gc.c
@@ -2719,9 +2719,7 @@ void gc_mark_and_steal(jl_ptls_t ptls)
     jl_gc_markqueue_t *mq = &ptls->mark_queue;
     jl_gc_markqueue_t *mq_master = NULL;
     int master_tid = jl_atomic_load(&gc_master_tid);
-    if (master_tid == -1) {
-        return;
-    }
+    assert(master_tid != -1);
     mq_master = &gc_all_tls_states[master_tid]->mark_queue;
     void *new_obj;
     jl_gc_chunk_t c;
@@ -2812,61 +2810,49 @@ size_t gc_count_work_in_queue(jl_ptls_t ptls) JL_NOTSAFEPOINT
  * Correctness argument for the mark-loop termination protocol.
  *
  * Safety properties:
- * - No work items shall be in any thread's queues when `gc_mark_loop_barrier` observes
+ * - No work items shall be in any thread's queues when `gc_should_mark` observes
  * that `gc_n_threads_marking` is zero.
  *
  * - No work item shall be stolen from the master thread (i.e. mutator thread which started
  * GC and which helped the `jl_n_markthreads` - 1 threads to mark) after
- * `gc_mark_loop_barrier` observes that `gc_n_threads_marking` is zero. This property is
+ * `gc_should_mark` observes that `gc_n_threads_marking` is zero. This property is
  * necessary because we call `gc_mark_loop_serial` after marking the finalizer list in
  * `_jl_gc_collect`, and want to ensure that we have the serial mark-loop semantics there,
  * and that no work is stolen from us at that point.
  *
  * Proof:
- * - Suppose the master thread observes that `gc_n_threads_marking` is zero in
- * `gc_mark_loop_barrier` and there is a work item left in one thread's queue at that point.
- * Since threads try to steal from all threads' queues, this implies that all threads must
- * have tried to steal from the queue which still has a work item left, but failed to do so,
- * which violates the semantics of Chase-Lev's work-stealing queue.
- *
- * - Let E1 be the event "master thread writes -1 to gc_master_tid" and E2 be the even
- * "master thread observes that `gc_n_threads_marking` is zero". Since we're using
- * sequentially consistent atomics, E1 => E2. Now suppose one thread which is spinning in
- * `gc_should_mark` tries to enter the mark-loop after E2. In order to do so, it must
- * increment `gc_n_threads_marking` to 1 in an event E3, and then read `gc_master_tid` in an
- * event E4. Since we're using sequentially consistent atomics, E3 => E4. Since we observed
- * `gc_n_threads_marking` as zero in E2, then E2 => E3, and we conclude E1 => E4, so that
- * the thread which is spinning in `gc_should_mark` must observe that `gc_master_tid` is -1
- * and therefore won't enter the mark-loop.
+ * - If a thread observes that `gc_n_threads_marking` is zero inside `gc_should_mark`, that
+ * means that no thread has work on their queue, this is guaranteed because a thread may only exit
+ * `gc_mark_and_steal` when its own queue is empty, this information is synchronized by the
+ * seq-cst fetch_add to a thread that is in `gc_should_mark`. `gc_queue_observer_lock`
+ * guarantees that once `gc_n_threads_marking` reaches zero, no thread will increment it again,
+ * because incrementing is only legal from inside the lock. Therefore, no thread will reenter
+ * the mark-loop after `gc_n_threads_marking` reaches zero.
  */
 
-int gc_should_mark(jl_ptls_t ptls)
+int gc_should_mark(void)
 {
     int should_mark = 0;
-    int n_threads_marking = jl_atomic_load(&gc_n_threads_marking);
-    // fast path
-    if (n_threads_marking == 0) {
-        return 0;
-    }
     uv_mutex_lock(&gc_queue_observer_lock);
     while (1) {
-        int tid = jl_atomic_load(&gc_master_tid);
-        // fast path
-        if (tid == -1) {
-            break;
-        }
-        n_threads_marking = jl_atomic_load(&gc_n_threads_marking);
-        // fast path
+        int n_threads_marking = jl_atomic_load(&gc_n_threads_marking);
         if (n_threads_marking == 0) {
             break;
         }
+        int tid = jl_atomic_load_relaxed(&gc_master_tid);
+        assert(tid != -1);
         size_t work = gc_count_work_in_queue(gc_all_tls_states[tid]);
         for (tid = gc_first_tid; tid < gc_first_tid + jl_n_markthreads; tid++) {
-            work += gc_count_work_in_queue(gc_all_tls_states[tid]);
+            jl_ptls_t ptls2 = gc_all_tls_states[tid];
+            if (ptls2 == NULL) {
+                continue;
+            }
+            work += gc_count_work_in_queue(ptls2);
         }
         // if there is a lot of work left, enter the mark loop
         if (work >= 16 * n_threads_marking) {
-            jl_atomic_fetch_add(&gc_n_threads_marking, 1);
+            jl_atomic_fetch_add(&gc_n_threads_marking, 1); // A possibility would be to allow a thread that found lots
+                                                           // of work to increment this
             should_mark = 1;
             break;
         }
@@ -2878,9 +2864,7 @@ int gc_should_mark(jl_ptls_t ptls)
 
 void gc_wake_all_for_marking(jl_ptls_t ptls)
 {
-    jl_atomic_store(&gc_master_tid, ptls->tid);
     uv_mutex_lock(&gc_threads_lock);
-    jl_atomic_fetch_add(&gc_n_threads_marking, 1);
     uv_cond_broadcast(&gc_threads_cond);
     uv_mutex_unlock(&gc_threads_lock);
 }
@@ -2888,12 +2872,14 @@ void gc_wake_all_for_marking(jl_ptls_t ptls)
 void gc_mark_loop_parallel(jl_ptls_t ptls, int master)
 {
     if (master) {
+        jl_atomic_store(&gc_master_tid, ptls->tid);
+        jl_atomic_fetch_add(&gc_n_threads_marking, 1);
         gc_wake_all_for_marking(ptls);
         gc_mark_and_steal(ptls);
         jl_atomic_fetch_add(&gc_n_threads_marking, -1);
     }
     while (1) {
-        int should_mark = gc_should_mark(ptls);
+        int should_mark = gc_should_mark();
         if (!should_mark) {
             break;
         }
diff --git a/src/gf.c b/src/gf.c
index 1b6251078fa1f..186f8787cf519 100644
--- a/src/gf.c
+++ b/src/gf.c
@@ -2477,7 +2477,8 @@ jl_code_instance_t *jl_compile_method_internal(jl_method_instance_t *mi, size_t
         }
     }
 
-    codeinst = jl_generate_fptr(mi, world);
+    int did_compile = 0;
+    codeinst = jl_generate_fptr(mi, world, &did_compile);
     if (!codeinst) {
         jl_method_instance_t *unspec = jl_get_unspecialized_from_mi(mi);
         jl_code_instance_t *ucache = jl_get_method_inferred(unspec, (jl_value_t*)jl_any_type, 1, ~(size_t)0);
@@ -2517,7 +2518,7 @@ jl_code_instance_t *jl_compile_method_internal(jl_method_instance_t *mi, size_t
         jl_atomic_store_release(&codeinst->invoke, ucache_invoke);
         jl_mi_cache_insert(mi, codeinst);
     }
-    else {
+    else if (did_compile) {
         record_precompile_statement(mi);
     }
     jl_atomic_store_relaxed(&codeinst->precompile, 1);
diff --git a/src/jitlayers.cpp b/src/jitlayers.cpp
index 099d74ccb37c1..d55090e161523 100644
--- a/src/jitlayers.cpp
+++ b/src/jitlayers.cpp
@@ -463,8 +463,10 @@ void jl_extern_c_impl(jl_value_t *declrt, jl_tupletype_t *sigt)
 
 // this compiles li and emits fptr
 extern "C" JL_DLLEXPORT_CODEGEN
-jl_code_instance_t *jl_generate_fptr_impl(jl_method_instance_t *mi JL_PROPAGATES_ROOT, size_t world)
+jl_code_instance_t *jl_generate_fptr_impl(jl_method_instance_t *mi JL_PROPAGATES_ROOT, size_t world, int *did_compile)
 {
+    if (did_compile != NULL)
+        *did_compile = 0;
     auto ct = jl_current_task;
     bool timed = (ct->reentrant_timing & 1) == 0;
     if (timed)
@@ -518,6 +520,8 @@ jl_code_instance_t *jl_generate_fptr_impl(jl_method_instance_t *mi JL_PROPAGATES
         _jl_compile_codeinst(codeinst, src, world, *jl_ExecutionEngine->getContext(), is_recompile);
         if (jl_atomic_load_relaxed(&codeinst->invoke) == NULL)
             codeinst = NULL;
+        else if (did_compile != NULL)
+            *did_compile = 1;
     }
     else {
         codeinst = NULL;
@@ -605,7 +609,7 @@ jl_value_t *jl_dump_method_asm_impl(jl_method_instance_t *mi, size_t world,
         char emit_mc, char getwrapper, const char* asm_variant, const char *debuginfo, char binary)
 {
     // printing via disassembly
-    jl_code_instance_t *codeinst = jl_generate_fptr(mi, world);
+    jl_code_instance_t *codeinst = jl_generate_fptr(mi, world, NULL);
     if (codeinst) {
         uintptr_t fptr = (uintptr_t)jl_atomic_load_acquire(&codeinst->invoke);
         if (getwrapper)
diff --git a/src/jltypes.c b/src/jltypes.c
index 66db26a575e90..e3089c650eda8 100644
--- a/src/jltypes.c
+++ b/src/jltypes.c
@@ -2065,15 +2065,20 @@ static jl_value_t *inst_datatype_inner(jl_datatype_t *dt, jl_svec_t *p, jl_value
                         jl_errorf("duplicate field name in NamedTuple: \"%s\" is not unique", jl_symbol_name((jl_sym_t*)ni));
                 }
             }
-            if (!jl_is_datatype(values_tt))
-                jl_error("NamedTuple field type must be a tuple type");
-            if (jl_is_va_tuple((jl_datatype_t*)values_tt) || jl_nparams(values_tt) != nf)
-                jl_error("NamedTuple names and field types must have matching lengths");
-            ndt->types = ((jl_datatype_t*)values_tt)->parameters;
+            if (values_tt == jl_bottom_type && nf > 0) {
+                ndt->types = jl_svec_fill(nf, jl_bottom_type);
+            }
+            else {
+                if (!jl_is_datatype(values_tt))
+                    jl_error("NamedTuple field type must be a tuple datatype");
+                if (jl_is_va_tuple((jl_datatype_t*)values_tt) || jl_nparams(values_tt) != nf)
+                    jl_error("NamedTuple names and field types must have matching lengths");
+                ndt->types = ((jl_datatype_t*)values_tt)->parameters;
+            }
             jl_gc_wb(ndt, ndt->types);
         }
         else {
-            ndt->types = jl_emptysvec; // XXX: this is essentially always false
+            ndt->types = jl_emptysvec; // XXX: this is essentially always incorrect
         }
     }
 
diff --git a/src/julia.h b/src/julia.h
index 1f85f06dd35dc..0fbfcd8e4836b 100644
--- a/src/julia.h
+++ b/src/julia.h
@@ -628,11 +628,11 @@ typedef struct _jl_module_t {
     intptr_t hash;
 } jl_module_t;
 
-typedef struct _jl_globalref_t {
+struct _jl_globalref_t {
     jl_module_t *mod;
     jl_sym_t *name;
     jl_binding_t *binding;
-} jl_globalref_t;
+};
 
 // one Type-to-Value entry
 typedef struct _jl_typemap_entry_t {
diff --git a/src/julia_internal.h b/src/julia_internal.h
index 4fa3154b765d1..85ce95b65613d 100644
--- a/src/julia_internal.h
+++ b/src/julia_internal.h
@@ -1661,7 +1661,7 @@ JL_DLLEXPORT uint32_t jl_crc32c(uint32_t crc, const char *buf, size_t len);
 
 // -- exports from codegen -- //
 
-JL_DLLIMPORT jl_code_instance_t *jl_generate_fptr(jl_method_instance_t *mi JL_PROPAGATES_ROOT, size_t world);
+JL_DLLIMPORT jl_code_instance_t *jl_generate_fptr(jl_method_instance_t *mi JL_PROPAGATES_ROOT, size_t world, int *did_compile);
 JL_DLLIMPORT void jl_generate_fptr_for_unspecialized(jl_code_instance_t *unspec);
 JL_DLLIMPORT void jl_generate_fptr_for_oc_wrapper(jl_code_instance_t *unspec);
 JL_DLLIMPORT int jl_compile_extern_c(LLVMOrcThreadSafeModuleRef llvmmod, void *params, void *sysimg, jl_value_t *declrt, jl_value_t *sigt);
diff --git a/src/subtype.c b/src/subtype.c
index 3d874872d6b44..10d2f19ae3209 100644
--- a/src/subtype.c
+++ b/src/subtype.c
@@ -872,10 +872,20 @@ static jl_unionall_t *unalias_unionall(jl_unionall_t *u, jl_stenv_t *e)
     // in the environment, rename to get a fresh var.
     JL_GC_PUSH1(&u);
     while (btemp != NULL) {
-        if (btemp->var == u->var ||
-            // outer var can only refer to inner var if bounds changed
+        int aliased = btemp->var == u->var ||
+            // outer var can only refer to inner var if bounds changed (mainly for subtyping path)
             (btemp->lb != btemp->var->lb && jl_has_typevar(btemp->lb, u->var)) ||
-            (btemp->ub != btemp->var->ub && jl_has_typevar(btemp->ub, u->var))) {
+            (btemp->ub != btemp->var->ub && jl_has_typevar(btemp->ub, u->var));
+        if (!aliased && btemp->innervars != NULL) {
+            for (size_t i = 0; i < jl_array_len(btemp->innervars); i++) {
+                jl_tvar_t *ivar = (jl_tvar_t*)jl_array_ptr_ref(btemp->innervars, i);
+                if (ivar == u->var) {
+                    aliased = 1;
+                    break;
+                }
+            }
+        }
+        if (aliased) {
             u = jl_rename_unionall(u);
             break;
         }
@@ -2833,7 +2843,7 @@ static jl_value_t *finish_unionall(jl_value_t *res JL_MAYBE_UNROOTED, jl_varbind
 
     // I. Handle indirect innervars (make them behave like direct innervars).
     //   1) record if btemp->lb/ub has indirect innervars.
-    //   2) subtitute `vb->var` with `varval`/`varval`
+    //   2) substitute `vb->var` with `varval`/`newvar`
     //   note: We only store the innervar in the outmost `varbinding`,
     //       thus we must check all inner env to ensure the recording/subtitution
     //       is complete
@@ -2897,6 +2907,7 @@ static jl_value_t *finish_unionall(jl_value_t *res JL_MAYBE_UNROOTED, jl_varbind
                     }
                     envind++;
                 }
+                // FIXME: innervar that depend on `ivar` should also be updated.
             }
         }
     }
@@ -3012,7 +3023,8 @@ static jl_value_t *finish_unionall(jl_value_t *res JL_MAYBE_UNROOTED, jl_varbind
     }
 
     if (vb->innervars != NULL) {
-        for (size_t i = 0; i < jl_array_len(vb->innervars); i++) {
+        size_t len = jl_array_len(vb->innervars), count = 0;
+        for (size_t i = 0; i < len; i++) {
             jl_tvar_t *var = (jl_tvar_t*)jl_array_ptr_ref(vb->innervars, i);
             // the `btemp->prev` walk is only giving a sort of post-order guarantee (since we are
             // iterating 2 trees at once), so once we set `wrap`, there might remain other branches
@@ -3026,11 +3038,45 @@ static jl_value_t *finish_unionall(jl_value_t *res JL_MAYBE_UNROOTED, jl_varbind
             if (wrap) {
                 if (wrap->innervars == NULL)
                     wrap->innervars = jl_alloc_array_1d(jl_array_any_type, 0);
+                // FIXME: `var`'s dependence should also be pushed into `wrap->innervars`.
                 jl_array_ptr_1d_push(wrap->innervars, (jl_value_t*)var);
+                jl_array_ptr_set(vb->innervars, i, (jl_value_t*)NULL);
+            }
+        }
+        for (size_t i = 0; i < len; i++) {
+            jl_tvar_t *var = (jl_tvar_t*)jl_array_ptr_ref(vb->innervars, i);
+            if (var) {
+                if (count < i)
+                    jl_array_ptr_set(vb->innervars, count, (jl_value_t*)var);
+                count++;
+            }
+        }
+        if (count != len)
+            jl_array_del_end(vb->innervars, len - count);
+        if (res != jl_bottom_type) {
+            while (count > 1) {
+                int changed = 0;
+                // Now need to re-sort the vb->innervars using the partial-ordering predicate `jl_has_typevar`.
+                // If this is slow, we could possibly switch to a simpler graph sort than this triple loop, such as Tarjan's SCC.
+                // But for now we use a variant on selection sort for partial-orders.
+                for (size_t i = 0; i < count - 1; i++) {
+                    jl_tvar_t *vari = (jl_tvar_t*)jl_array_ptr_ref(vb->innervars, i);
+                    for (size_t j = i+1; j < count; j++) {
+                        jl_tvar_t *varj = (jl_tvar_t*)jl_array_ptr_ref(vb->innervars, j);
+                        if (jl_has_typevar(varj->lb, vari) || jl_has_typevar(varj->ub, vari)) {
+                            jl_array_ptr_set(vb->innervars, j, (jl_value_t*)vari);
+                            jl_array_ptr_set(vb->innervars, i, (jl_value_t*)varj);
+                            changed = 1;
+                            break;
+                        }
+                    }
+                    if (changed) break;
+                }
+                if (!changed) break;
             }
-            else if (res != jl_bottom_type) {
-                if (jl_has_typevar(res, var))
-                    res = jl_type_unionall((jl_tvar_t*)var, res);
+            for (size_t i = 0; i < count; i++) {
+                jl_tvar_t *var = (jl_tvar_t*)jl_array_ptr_ref(vb->innervars, i);
+                res = jl_type_unionall(var, res);
             }
         }
     }
@@ -3050,9 +3096,6 @@ static jl_value_t *finish_unionall(jl_value_t *res JL_MAYBE_UNROOTED, jl_varbind
 static jl_value_t *intersect_unionall_(jl_value_t *t, jl_unionall_t *u, jl_stenv_t *e, int8_t R, int param, jl_varbinding_t *vb)
 {
     jl_varbinding_t *btemp = e->vars;
-    // if the var for this unionall (based on identity) already appears somewhere
-    // in the environment, rename to get a fresh var.
-    // TODO: might need to look inside types in btemp->lb and btemp->ub
     int envsize = 0;
     while (btemp != NULL) {
         envsize++;
@@ -3060,13 +3103,9 @@ static jl_value_t *intersect_unionall_(jl_value_t *t, jl_unionall_t *u, jl_stenv
             vb->limited = 1;
             return t;
         }
-        if (btemp->var == u->var || btemp->lb == (jl_value_t*)u->var ||
-            btemp->ub == (jl_value_t*)u->var) {
-            u = jl_rename_unionall(u);
-            break;
-        }
         btemp = btemp->prev;
     }
+    u = unalias_unionall(u, e);
     JL_GC_PUSH1(&u);
     vb->var = u->var;
     e->vars = vb;
diff --git a/src/work-stealing-queue.h b/src/work-stealing-queue.h
index 5902c2ac6af9f..c444ccb3da682 100644
--- a/src/work-stealing-queue.h
+++ b/src/work-stealing-queue.h
@@ -3,6 +3,8 @@
 #ifndef WORK_STEALING_QUEUE_H
 #define WORK_STEALING_QUEUE_H
 
+#include <stdalign.h>
+
 #include "julia_atomics.h"
 #include "assert.h"
 
@@ -35,10 +37,10 @@ static inline ws_array_t *create_ws_array(size_t capacity, int32_t eltsz) JL_NOT
 }
 
 typedef struct {
-    _Atomic(int64_t) top;
-    char _padding[JL_CACHE_BYTE_ALIGNMENT - sizeof(_Atomic(int64_t))];
-    _Atomic(int64_t) bottom; // put on a separate cache line. conservatively estimate cache line size as 128 bytes
-    _Atomic(ws_array_t *) array;
+    // align to JL_CACHE_BYTE_ALIGNMENT
+    alignas(JL_CACHE_BYTE_ALIGNMENT) _Atomic(int64_t) top;
+    alignas(JL_CACHE_BYTE_ALIGNMENT) _Atomic(int64_t) bottom;
+    alignas(JL_CACHE_BYTE_ALIGNMENT) _Atomic(ws_array_t *) array;
 } ws_queue_t;
 
 static inline ws_array_t *ws_queue_push(ws_queue_t *q, void *elt, int32_t eltsz) JL_NOTSAFEPOINT
diff --git a/stdlib/ArgTools.version b/stdlib/ArgTools.version
index 0ae273bb18db6..4b573703df77a 100644
--- a/stdlib/ArgTools.version
+++ b/stdlib/ArgTools.version
@@ -1,4 +1,4 @@
-ARGTOOLS_BRANCH = master
+ARGTOOLS_BRANCH = release-1.10
 ARGTOOLS_SHA1 = 08b11b2707593d4d7f92e5f1b9dba7668285ff82
 ARGTOOLS_GIT_URL := https://github.com/JuliaIO/ArgTools.jl.git
 ARGTOOLS_TAR_URL = https://api.github.com/repos/JuliaIO/ArgTools.jl/tarball/$1
diff --git a/stdlib/Artifacts/src/Artifacts.jl b/stdlib/Artifacts/src/Artifacts.jl
index 5daf994bfbf10..6b406201f11d6 100644
--- a/stdlib/Artifacts/src/Artifacts.jl
+++ b/stdlib/Artifacts/src/Artifacts.jl
@@ -1,5 +1,11 @@
 # This file is a part of Julia. License is MIT: https://julialang.org/license
 
+"""
+Artifacts.jl is a Julia module that is used for managing and accessing
+artifacts in Julia packages. Artifacts are containers for
+platform-specific binaries, datasets, text, or any other kind of data
+that would be convenient to place within an immutable, life-cycled datastore.
+"""
 module Artifacts
 
 import Base: get, SHA1
diff --git a/stdlib/CompilerSupportLibraries_jll/Project.toml b/stdlib/CompilerSupportLibraries_jll/Project.toml
index 3e15ff6b87b71..5aab865b5f6fc 100644
--- a/stdlib/CompilerSupportLibraries_jll/Project.toml
+++ b/stdlib/CompilerSupportLibraries_jll/Project.toml
@@ -4,7 +4,7 @@ uuid = "e66e0078-7015-5450-92f7-15fbd957f2ae"
 # NOTE: When updating this, also make sure to update the value
 # `CSL_NEXT_GLIBCXX_VERSION` in `Make.inc`, to properly disable
 # automatic usage of BB-built CSLs on extremely up-to-date systems!
-version = "1.1.0+0"
+version = "1.1.1+0"
 
 [deps]
 Libdl = "8f399da3-3557-5675-b5ff-fb832c97cbdb"
diff --git a/stdlib/NetworkOptions.version b/stdlib/NetworkOptions.version
index 7f93eadcf7264..221b9b934f1a1 100644
--- a/stdlib/NetworkOptions.version
+++ b/stdlib/NetworkOptions.version
@@ -1,4 +1,4 @@
 NETWORKOPTIONS_BRANCH = master
-NETWORKOPTIONS_SHA1 = 0bd33455cf3c77f2f87bf64167b64611dc5ff128
+NETWORKOPTIONS_SHA1 = 8eec5cb0acec4591e6db3c017f7499426cd8e352
 NETWORKOPTIONS_GIT_URL := https://github.com/JuliaLang/NetworkOptions.jl.git
 NETWORKOPTIONS_TAR_URL = https://api.github.com/repos/JuliaLang/NetworkOptions.jl/tarball/$1
diff --git a/stdlib/Pkg.version b/stdlib/Pkg.version
index c3a452c1bd32f..2d2683e9e9bb1 100644
--- a/stdlib/Pkg.version
+++ b/stdlib/Pkg.version
@@ -1,4 +1,4 @@
 PKG_BRANCH = release-1.10
-PKG_SHA1 = 70525539d3157891445abe806962f780f64143cd
+PKG_SHA1 = f487626b090b91493828cbcde30eed96fb9f8e8f
 PKG_GIT_URL := https://github.com/JuliaLang/Pkg.jl.git
 PKG_TAR_URL = https://api.github.com/repos/JuliaLang/Pkg.jl/tarball/$1
diff --git a/stdlib/REPL/src/REPLCompletions.jl b/stdlib/REPL/src/REPLCompletions.jl
index 58382e9c10d75..41616edc2a902 100644
--- a/stdlib/REPL/src/REPLCompletions.jl
+++ b/stdlib/REPL/src/REPLCompletions.jl
@@ -1052,7 +1052,7 @@ function complete_identifiers!(suggestions::Vector{Completion}, @nospecialize(ff
                         if ex === nothing
                             ex = arg
                         else
-                            ex = Expr(:., out, QuoteNode(arg))
+                            ex = Expr(:., ex, QuoteNode(arg))
                         end
                     else # invalid expression
                         ex = nothing
diff --git a/stdlib/REPL/test/replcompletions.jl b/stdlib/REPL/test/replcompletions.jl
index ae29812c5f43e..53cf6d364ffac 100644
--- a/stdlib/REPL/test/replcompletions.jl
+++ b/stdlib/REPL/test/replcompletions.jl
@@ -1968,6 +1968,11 @@ let s = "using .Issue52922.Inn"
     @test res
     @test "Inner1" in c
 end
+let s = "using .Issue52922.Inner1."
+    c, r, res = test_complete_context(s)
+    @test res
+    @test "Inner12" in c
+end
 let s = "using .Inner1.Inn"
     c, r, res = test_complete_context(s, Issue52922)
     @test res
diff --git a/stdlib/SHA.version b/stdlib/SHA.version
index f2242a336c6fe..f43d0a118e540 100644
--- a/stdlib/SHA.version
+++ b/stdlib/SHA.version
@@ -1,4 +1,4 @@
-SHA_BRANCH = master
-SHA_SHA1 = 2d1f84e6f8417a1a368de48318640d948b023e7a
+SHA_BRANCH = release-0.7
+SHA_SHA1 = e1af7dd0863dee14a83550faf4b6e08971993ce8
 SHA_GIT_URL := https://github.com/JuliaCrypto/SHA.jl.git
 SHA_TAR_URL = https://api.github.com/repos/JuliaCrypto/SHA.jl/tarball/$1
diff --git a/stdlib/SparseArrays.version b/stdlib/SparseArrays.version
index 8ff55582ca9df..803b6b4c24b15 100644
--- a/stdlib/SparseArrays.version
+++ b/stdlib/SparseArrays.version
@@ -1,4 +1,4 @@
-SPARSEARRAYS_BRANCH = main
+SPARSEARRAYS_BRANCH = release-1.10
 SPARSEARRAYS_SHA1 = 279b363ca8d3129d4742903d37c8b11545fa08a2
 SPARSEARRAYS_GIT_URL := https://github.com/JuliaSparse/SparseArrays.jl.git
 SPARSEARRAYS_TAR_URL = https://api.github.com/repos/JuliaSparse/SparseArrays.jl/tarball/$1
diff --git a/stdlib/Statistics.version b/stdlib/Statistics.version
index 336d7c731bd47..ba6a48e8aaac0 100644
--- a/stdlib/Statistics.version
+++ b/stdlib/Statistics.version
@@ -1,4 +1,4 @@
-STATISTICS_BRANCH = master
+STATISTICS_BRANCH = release-1.10
 STATISTICS_SHA1 = d147f9253aa0f2f71be9c3fed8d51c2215410408
 STATISTICS_GIT_URL := https://github.com/JuliaStats/Statistics.jl.git
 STATISTICS_TAR_URL = https://api.github.com/repos/JuliaStats/Statistics.jl/tarball/$1
diff --git a/stdlib/Tar.version b/stdlib/Tar.version
index 44e829b5fea54..09878004d6cd3 100644
--- a/stdlib/Tar.version
+++ b/stdlib/Tar.version
@@ -1,4 +1,4 @@
-TAR_BRANCH = master
+TAR_BRANCH = release-1.10
 TAR_SHA1 = ff55460f4d329949661a33e6c8168ce6d890676c
 TAR_GIT_URL := https://github.com/JuliaIO/Tar.jl.git
 TAR_TAR_URL = https://api.github.com/repos/JuliaIO/Tar.jl/tarball/$1
diff --git a/stdlib/Test/src/logging.jl b/stdlib/Test/src/logging.jl
index 4e444874d0fb8..7b3838903ce10 100644
--- a/stdlib/Test/src/logging.jl
+++ b/stdlib/Test/src/logging.jl
@@ -149,7 +149,7 @@ function record(ts::DefaultTestSet, t::LogTestFailure)
     if TESTSET_PRINT_ENABLE[]
         printstyled(ts.description, ": ", color=:white)
         print(t)
-        Base.show_backtrace(stdout, scrub_backtrace(backtrace()))
+        Base.show_backtrace(stdout, scrub_backtrace(backtrace(), ts.file, extract_file(t.source)))
         println()
     end
     # Hack: convert to `Fail` so that test summarization works correctly
diff --git a/test/abstractarray.jl b/test/abstractarray.jl
index 6a60dac2e81e1..9691db88b6e99 100644
--- a/test/abstractarray.jl
+++ b/test/abstractarray.jl
@@ -1854,3 +1854,33 @@ f45952(x) = [x;;]
     @test_throws "invalid index: true of type Bool" isassigned(A, 1, true)
     @test_throws "invalid index: true of type Bool" isassigned(A, true)
 end
+
+@testset "reshape for offset arrays" begin
+    p = Base.IdentityUnitRange(3:4)
+    r = reshape(p, :, 1)
+    @test r[eachindex(r)] == UnitRange(p)
+    @test collect(r) == r
+
+    struct ZeroBasedArray{T,N,A<:AbstractArray{T,N}} <: AbstractArray{T,N}
+        a :: A
+        function ZeroBasedArray(a::AbstractArray)
+            Base.require_one_based_indexing(a)
+            new{eltype(a), ndims(a), typeof(a)}(a)
+        end
+    end
+    Base.parent(z::ZeroBasedArray) = z.a
+    Base.size(z::ZeroBasedArray) = size(parent(z))
+    Base.axes(z::ZeroBasedArray) = map(x -> Base.IdentityUnitRange(0:x - 1), size(parent(z)))
+    Base.getindex(z::ZeroBasedArray{<:Any, N}, i::Vararg{Int,N}) where {N} = parent(z)[map(x -> x + 1, i)...]
+    Base.setindex!(z::ZeroBasedArray{<:Any, N}, val, i::Vararg{Int,N}) where {N} = parent(z)[map(x -> x + 1, i)...] = val
+
+    z = ZeroBasedArray(collect(1:4))
+    r2 = reshape(z, :, 1)
+    @test r2[CartesianIndices(r2)] == r2[LinearIndices(r2)]
+    r2[firstindex(r2)] = 34
+    @test z[0] == 34
+    r2[eachindex(r2)] = r2 .* 2
+    for (i, j) in zip(eachindex(r2), eachindex(z))
+        @test r2[i] == z[j]
+    end
+end
diff --git a/test/namedtuple.jl b/test/namedtuple.jl
index 0e9648dbcb9c0..33c30aedd98f6 100644
--- a/test/namedtuple.jl
+++ b/test/namedtuple.jl
@@ -414,3 +414,18 @@ let c = (a=1, b=2),
     d = (b=3, c=(d=1,))
     @test @inferred(mergewith51009((x,y)->y, c, d)) === (a = 1, b = 3, c = (d = 1,))
 end
+
+@test_throws ErrorException NamedTuple{(), Union{}}
+for NT in (NamedTuple{(:a, :b), Union{}}, NamedTuple{(:a, :b), T} where T<:Union{})
+    @test fieldtype(NT, 1) == Union{}
+    @test fieldtype(NT, :b) == Union{}
+    @test_throws ErrorException fieldtype(NT, :c)
+    @test_throws BoundsError fieldtype(NT, 0)
+    @test_throws BoundsError fieldtype(NT, 3)
+    @test Base.return_types((Type{NT},)) do NT; fieldtype(NT, :a); end == Any[Type{Union{}}]
+    @test fieldtype(NamedTuple{<:Any, Union{}}, 1) == Union{}
+end
+let NT = NamedTuple{<:Any, Union{}}
+    @test fieldtype(NT, 100) == Union{}
+    @test only(Base.return_types((Type{NT},)) do NT; fieldtype(NT, 100); end) >: Type{Union{}}
+end
diff --git a/test/subtype.jl b/test/subtype.jl
index cd856b0b7a2ff..3245e0583cda8 100644
--- a/test/subtype.jl
+++ b/test/subtype.jl
@@ -2563,6 +2563,32 @@ let a = Tuple{Union{Nothing, Type{Pair{T1}} where T1}}
     @test !Base.has_free_typevars(typeintersect(a, b))
 end
 
+#issue 53366
+let Y = Tuple{Val{T}, Val{Val{T}}} where T
+    A = Val{Val{T}} where T
+    T = TypeVar(:T, UnionAll(A.var, Val{A.var}))
+    B = UnionAll(T, Val{T})
+    X = Tuple{A, B}
+    @testintersect(X, Y, !Union{})
+end
+
+#issue 53621 (requires assertions enabled)
+abstract type A53621{T, R, C, U} <: AbstractSet{Union{C, U}} end
+struct T53621{T, R<:Real, C, U} <: A53621{T, R, C, U} end
+let
+    U = TypeVar(:U)
+    C = TypeVar(:C)
+    T = TypeVar(:T)
+    R = TypeVar(:R)
+    CC = TypeVar(:CC, Union{C, U})
+    UU = TypeVar(:UU, Union{C, U})
+    S1 = UnionAll(T, UnionAll(R, Type{UnionAll(C, UnionAll(U, T53621{T, R, C, U}))}))
+    S2 = UnionAll(C, UnionAll(U, UnionAll(CC, UnionAll(UU, UnionAll(T, UnionAll(R, T53621{T, R, CC, UU}))))))
+    S = Tuple{S1, S2}
+    T = Tuple{Type{T53621{T, R}}, AbstractSet{T}} where {T, R}
+    @testintersect(S, T, !Union{})
+end
+
 #issue 53371
 struct T53371{A,B,C,D,E} end
 S53371{A} = Union{Int, <:A}