diff --git a/src/common.jl b/src/common.jl
index 4146f4ef..e486046c 100644
--- a/src/common.jl
+++ b/src/common.jl
@@ -139,8 +139,6 @@ __init_u0_from_Ab(::SMatrix{S1, S2}, b) where {S1, S2} = zeros(SVector{S2, eltyp
 
 function SciMLBase.init(prob::LinearProblem, alg::SciMLLinearSolveAlgorithm,
         args...;
-        alias_A = default_alias_A(alg, prob.A, prob.b),
-        alias_b = default_alias_b(alg, prob.A, prob.b),
         abstol = default_tol(real(eltype(prob.b))),
         reltol = default_tol(real(eltype(prob.b))),
         maxiters::Int = length(prob.b),
@@ -149,23 +147,50 @@ function SciMLBase.init(prob::LinearProblem, alg::SciMLLinearSolveAlgorithm,
         Pr = nothing,
         assumptions = OperatorAssumptions(issquare(prob.A)),
         sensealg = LinearSolveAdjoint(),
-        alias = LinearAliases(),
+        alias = LinearAliasSpecifier(),
         kwargs...)
     (;A, b, u0, p) = prob
 
-    if isnothing(alias.alias_A)
-        to_alias_A = alias_A
+    has_A = haskey(kwargs,:alias_A)
+    has_b = haskey(kwargs,:alias_b)
+
+    if has_A || has_b
+        aliases = LinearAliasSpecifier()
+        if has_A
+            Base.depwarn("alias_A keyword argument is deprecated, to set `alias_A`,
+            please use a LinearAliasSpecifier, e.g. `solve(prob, alias = LinearAliasSpecifier(alias_A = true))", :alias_A)
+            SciMLBase.@reset aliases.alias_A = values(kwargs).alias_A
+        else
+            SciMLBase.@reset aliases.alias_A = default_alias_A(alg, prob.A, prob.b)
+        end
+        
+        if has_b
+            Base.depwarn("alias_b keyword argument is deprecated, to set `alias_b`,
+            please use an LinearAliasSpecifier, e.g. `solve(prob, alias = LinearAliasSpecifier(alias_b = true))", :alias_b)
+            SciMLBase.@reset aliases.alias_b = values(kwargs).alias_b
+        else
+            SciMLBase.@reset aliases.alias_b = default_alias_b(alg, prob.A, prob.b)
+        end
+
+        aliases
     else
-        to_alias_A = alias.alias_A
+      # If alias isa Bool, all fields of ODEAliases set to alias
+        if alias isa Bool
+            aliases = LinearAliasSpecifier(alias = alias)
+        elseif alias isa LinearAliasSpecifier || isnothing(alias)
+            aliases = alias
+        end
+
+        if isnothing(aliases.alias_A)
+            SciMLBase.@reset aliases.alias_A = default_alias_A(alg,prob.A,prob.b)
+        end
+        if isnothing(aliases.alias_b)
+            SciMLBase.@reset aliases.alias_b = default_alias_b(alg,prob.A,prob.b)
+        end
+        aliases
     end
 
-    if isnothing(alias.alias_b)
-        to_alias_b = alias_b
-    else
-        to_alias_b = alias.alias_b
-    end
-
-    A = if to_alias_A || A isa SMatrix
+    A = if aliases.alias_A || A isa SMatrix
         A
     elseif A isa Array
         copy(A)
@@ -177,7 +202,7 @@ function SciMLBase.init(prob::LinearProblem, alg::SciMLLinearSolveAlgorithm,
 
     b = if b isa SparseArrays.AbstractSparseArray && !(A isa Diagonal)
         Array(b) # the solution to a linear solve will always be dense!
-    elseif to_alias_b || b isa SVector
+    elseif aliases.alias_b || b isa SVector
         b
     elseif b isa Array
         copy(b)