diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 000000000..d60f0707f
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,7 @@
+# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+version: 2
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "monthly"
diff --git a/.github/workflows/Documentation.yml b/.github/workflows/Documentation.yml
index e47f93896..09a92853a 100644
--- a/.github/workflows/Documentation.yml
+++ b/.github/workflows/Documentation.yml
@@ -11,7 +11,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: julia-actions/setup-julia@latest
         with:
           version: '1'
diff --git a/.github/workflows/Downstream.yml b/.github/workflows/Downstream.yml
index 196ed216b..f09362284 100644
--- a/.github/workflows/Downstream.yml
+++ b/.github/workflows/Downstream.yml
@@ -25,14 +25,14 @@ jobs:
           - {user: SciML, repo: ModelOrderReduction.jl, group: All}
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.julia-version }}
           arch: x64
       - uses: julia-actions/julia-buildpkg@latest
       - name: Clone Downstream
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
         with:
           repository: ${{ matrix.package.user }}/${{ matrix.package.repo }}
           path: downstream
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index cc1a6f479..cefa73be8 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -19,7 +19,7 @@ jobs:
           - '1'
           - '1.6'
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           fetch-depth: 0
       - run: |
@@ -27,7 +27,7 @@ jobs:
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
-      - uses: actions/cache@v1
+      - uses: actions/cache@v3
         env:
           cache-name: cache-artifacts
         with:
@@ -42,6 +42,6 @@ jobs:
         env:
           GROUP: ${{ matrix.group }}
       - uses: julia-actions/julia-processcoverage@v1
-      - uses: codecov/codecov-action@v1
+      - uses: codecov/codecov-action@v3
         with:
           file: lcov.info
diff --git a/src/Symbolics.jl b/src/Symbolics.jl
index d30cd5d6c..1b7e0c066 100644
--- a/src/Symbolics.jl
+++ b/src/Symbolics.jl
@@ -16,7 +16,7 @@ using Setfield
 import DomainSets: Domain
 @reexport using SymbolicUtils
 
-import SymbolicUtils: similarterm, istree, operation, arguments, symtype
+import SymbolicUtils: similarterm, istree, operation, arguments, symtype, metadata
 
 import SymbolicUtils: Term, Add, Mul, Pow, Sym, Div, BasicSymbolic,
                       FnType, @rule, Rewriters, substitute,
diff --git a/src/arrays.jl b/src/arrays.jl
index 19aab684d..5aecc990b 100644
--- a/src/arrays.jl
+++ b/src/arrays.jl
@@ -88,7 +88,7 @@ function operation(a::ArrayOp)
 end
 function arguments(a::ArrayOp)
     isnothing(a.term) ? [a.output_idx, a.expr, a.reduce,
-                         a.term, a.shape, a.ranges, a.metadata] :
+                         a.term, a.shape, a.ranges, metadata(a)] :
     arguments(a.term)
 end
 
@@ -723,7 +723,7 @@ function scalarize(arr)
     elseif arr isa Num
         wrap(scalarize(unwrap(arr)))
     elseif istree(arr) && symtype(arr) <: Number
-        t = similarterm(arr, operation(arr), map(scalarize, arguments(arr)), symtype(arr), metadata=arr.metadata)
+        t = similarterm(arr, operation(arr), map(scalarize, arguments(arr)), symtype(arr), metadata=metadata(arr))
         istree(t) ? scalarize_op(operation(t), t) : t
     else
         arr
diff --git a/src/build_function.jl b/src/build_function.jl
index 457078c95..d641f0bac 100644
--- a/src/build_function.jl
+++ b/src/build_function.jl
@@ -113,11 +113,11 @@ function _build_function(target::JuliaTarget, op, args...;
     expr = if cse
         fun = Func(dargs, [], Code.cse(unwrap(op)))
         (wrap_code !== nothing) && (fun = wrap_code(fun))
-        toexpr(fun, states)
+        conv(fun, states)
     else
         fun = Func(dargs, [], op)
         (wrap_code !== nothing) && (fun = wrap_code(fun))
-        toexpr(fun, states)
+        conv(fun, states)
     end
 
     if expression == Val{true}
@@ -142,14 +142,14 @@ function _build_function(target::JuliaTarget, op::Union{Arr, ArrayOp}, args...;
                                   Symbol("ˍ₋arg$(x[1])")), enumerate([args...]))
 
     expr = if cse
-        toexpr(Func(dargs, [], Code.cse(unwrap(op))), states)
+        conv(Func(dargs, [], Code.cse(unwrap(op))), states)
     else
-        toexpr(Func(dargs, [], op), states)
+        conv(Func(dargs, [], op), states)
     end
 
     outsym = Symbol("ˍ₋out")
     body = inplace_expr(unwrap(op), outsym)
-    oop_expr = toexpr(Func([outsym, dargs...], [], body), states)
+    oop_expr = conv(Func([outsym, dargs...], [], body), states)
 
     N = length(shape(op))
     op = unwrap(op)
@@ -161,7 +161,7 @@ function _build_function(target::JuliaTarget, op::Union{Arr, ArrayOp}, args...;
               $outsym
           end) |> LiteralExpr
     end
-    ip_expr = toexpr(Func(dargs, [], op_body), states)
+    ip_expr = conv(Func(dargs, [], op_body), states)
     if expression == Val{true}
         oop_expr, ip_expr
     else
@@ -194,11 +194,28 @@ function fill_array_with_zero!(x::AbstractArray)
 end
 
 """
+    _build_function(target::JuliaTarget, rhss::AbstractArray, args...;
+                       conv=toexpr,
+                       expression = Val{true},
+                       expression_module = @__MODULE__(),
+                       checkbounds = false,
+                       postprocess_fbody=ex -> ex,
+                       linenumbers = false,
+                       outputidxs=nothing,
+                       skipzeros = false,
+                       force_SA = false,
+                       wrap_code = (nothing, nothing),
+                       fillzeros = skipzeros && !(rhss isa SparseMatrixCSC),
+                       states = LazyState(),
+                       iip_config = (true, true),
+                       parallel=nothing, cse = false, kwargs...)
+
 Build function target: `JuliaTarget`
 
 ```julia
 function _build_function(target::JuliaTarget, rhss, args...;
-                         conv = toexpr, expression = Val{true},
+                         conv = toexpr, 
+                         expression = Val{true},
                          checkbounds = false,
                          linenumbers = false,
                          headerfun = addheader, outputidxs=nothing,
@@ -250,6 +267,7 @@ Special Keyword Arguments:
   safety with `skipzeros`.
 """
 function _build_function(target::JuliaTarget, rhss::AbstractArray, args...;
+                       conv=toexpr,
                        expression = Val{true},
                        expression_module = @__MODULE__(),
                        checkbounds = false,
@@ -303,10 +321,10 @@ function _build_function(target::JuliaTarget, rhss::AbstractArray, args...;
     end
 
     if expression == Val{true}
-        return toexpr(oop_expr, states), toexpr(ip_expr, states)
+        return conv(oop_expr, states), conv(ip_expr, states)
     else
-        return _build_and_inject_function(expression_module, toexpr(oop_expr, states)),
-        _build_and_inject_function(expression_module, toexpr(ip_expr, states))
+        return _build_and_inject_function(expression_module, conv(oop_expr, states)),
+        _build_and_inject_function(expression_module, conv(ip_expr, states))
     end
 end
 
diff --git a/src/complex.jl b/src/complex.jl
index e063f709f..832d2816a 100644
--- a/src/complex.jl
+++ b/src/complex.jl
@@ -21,6 +21,7 @@ symtype(a::ComplexTerm{T}) where T = Complex{T}
 istree(a::ComplexTerm) = true
 operation(a::ComplexTerm{T}) where T = Complex{T}
 arguments(a::ComplexTerm) = [a.re, a.im]
+metadata(a::ComplexTerm) = a.re.metadata
 
 function similarterm(t::ComplexTerm, f, args, symtype; metadata=nothing)
     if f <: Complex
diff --git a/src/utils.jl b/src/utils.jl
index 29424c7d8..94b9433a7 100644
--- a/src/utils.jl
+++ b/src/utils.jl
@@ -323,6 +323,8 @@ function coeff(p, sym=nothing)
         else
             @views prod(Iterators.flatten((coeffs[findall(!iszero, coeffs)], args[findall(iszero, coeffs)])))
         end
+    elseif isdiv(p)
+        throw(DomainError(p, "coeff on expressions with division is not yet implemented."))
     else
         p isa Number && return sym === nothing ? p : 0
         p isa Symbolic && return coeff(p, sym)
diff --git a/test/complex.jl b/test/complex.jl
index 2a24d3304..47a10b9c6 100644
--- a/test/complex.jl
+++ b/test/complex.jl
@@ -1,4 +1,6 @@
 using Symbolics, Test
+using SymbolicUtils: metadata
+using Symbolics: unwrap
 
 @variables a b::Real z::Complex (Z::Complex)[1:10]
 
@@ -26,3 +28,10 @@ end
     @test repr(z) == "z"
     @test repr(a + b*im) == "a + b*im"
 end
+
+@testset "metadata" begin
+    z1 = z+1.0
+    @test_nowarn substitute(z1, z=>1.0im)
+    @test metadata(z1) == unwrap(z1.im).metadata
+    @test metadata(z1) == unwrap(z1.re).metadata
+end