From 8264d88d9d9ce203be3e4bb7a633bcb53112f513 Mon Sep 17 00:00:00 2001
From: Matthew Fishman <mfishman@flatironinstitute.org>
Date: Tue, 4 Aug 2026 16:50:10 -0400
Subject: [PATCH 1/2] Rename FusionStyle to MatricizeStyle

Follows the TensorAlgebra rename of the matricize-strategy trait `FusionStyle` to `MatricizeStyle` (https://github.com/ITensor/TensorAlgebra.jl/pull/219), renaming `SparseArrayFusion` to `SparseArrayMatricize` and requiring TensorAlgebra 0.19.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---
 Project.toml          |  8 ++++++--
 docs/Project.toml     |  2 +-
 examples/Project.toml |  2 +-
 src/tensoralgebra.jl  | 14 +++++++-------
 test/Project.toml     |  4 ++--
 5 files changed, 17 insertions(+), 13 deletions(-)

diff --git a/Project.toml b/Project.toml
index 0a87b20a..0a7c569f 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,6 +1,6 @@
 name = "SparseArraysBase"
 uuid = "0d5efcca-f356-4864-8770-e1ed8d78f208"
-version = "0.10.9"
+version = "0.11.0"
 authors = ["ITensor developers <support@itensor.org> and contributors"]
 
 [workspace]
@@ -19,6 +19,10 @@ Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 TensorAlgebra = "68bd88dc-f39d-4e12-b2ca-f046b68fcc6a"
 
+[sources.TensorAlgebra]
+rev = "mf/matricize-style"
+url = "https://github.com/ITensor/TensorAlgebra.jl"
+
 [compat]
 Accessors = "0.1.41"
 Adapt = "4.3"
@@ -30,5 +34,5 @@ LinearAlgebra = "1.10"
 MapBroadcast = "0.1.5"
 Random = "1.10"
 SparseArrays = "1.10"
-TensorAlgebra = "0.17.5, 0.18"
+TensorAlgebra = "0.19"
 julia = "1.10"
diff --git a/docs/Project.toml b/docs/Project.toml
index 95fe37ed..b43a8924 100644
--- a/docs/Project.toml
+++ b/docs/Project.toml
@@ -13,4 +13,4 @@ Dictionaries = "0.4.4"
 Documenter = "1.8.1"
 ITensorFormatter = "0.2.27"
 Literate = "2.20.1"
-SparseArraysBase = "0.10"
+SparseArraysBase = "0.11"
diff --git a/examples/Project.toml b/examples/Project.toml
index 0c07597a..3e13b167 100644
--- a/examples/Project.toml
+++ b/examples/Project.toml
@@ -8,5 +8,5 @@ path = ".."
 
 [compat]
 Dictionaries = "0.4.4"
-SparseArraysBase = "0.10"
+SparseArraysBase = "0.11"
 Test = "<0.0.1, 1"
diff --git a/src/tensoralgebra.jl b/src/tensoralgebra.jl
index 6859aa5f..0f0a15d4 100644
--- a/src/tensoralgebra.jl
+++ b/src/tensoralgebra.jl
@@ -1,22 +1,22 @@
 using SparseArrays: SparseMatrixCSC
-using TensorAlgebra: TensorAlgebra, FusionStyle, ReshapeFusion, matricize, unmatricize
+using TensorAlgebra: TensorAlgebra, MatricizeStyle, ReshapeMatricize, matricize, unmatricize
 
-struct SparseArrayFusion <: FusionStyle end
-TensorAlgebra.FusionStyle(::Type{<:AnyAbstractSparseArray}) = SparseArrayFusion()
+struct SparseArrayMatricize <: MatricizeStyle end
+TensorAlgebra.MatricizeStyle(::Type{<:AnyAbstractSparseArray}) = SparseArrayMatricize()
 
 function TensorAlgebra.matricize(
-        style::SparseArrayFusion, a::AbstractArray, length_codomain::Val
+        style::SparseArrayMatricize, a::AbstractArray, length_codomain::Val
     )
-    m = matricize(ReshapeFusion(), a, length_codomain)
+    m = matricize(ReshapeMatricize(), a, length_codomain)
     return convert(SparseMatrixCSC, m)
 end
 function TensorAlgebra.unmatricize(
-        style::SparseArrayFusion,
+        style::SparseArrayMatricize,
         m::AbstractMatrix,
         axes_codomain::Tuple{Vararg{AbstractUnitRange}},
         axes_domain::Tuple{Vararg{AbstractUnitRange}}
     )
-    a = unmatricize(ReshapeFusion(), m, axes_codomain, axes_domain)
+    a = unmatricize(ReshapeMatricize(), m, axes_codomain, axes_domain)
     # TODO: Use `similar_type(m)` instead of hardcoding to `SparseArrayDOK`?
     return convert(SparseArrayDOK, a)
 end
diff --git a/test/Project.toml b/test/Project.toml
index 52f11aaa..2b67354e 100644
--- a/test/Project.toml
+++ b/test/Project.toml
@@ -31,8 +31,8 @@ LinearAlgebra = "<0.0.1, 1"
 Random = "<0.0.1, 1"
 SafeTestsets = "0.1"
 SparseArrays = "1.10"
-SparseArraysBase = "0.10"
+SparseArraysBase = "0.11"
 StableRNGs = "1.0.2"
 Suppressor = "0.2.8"
-TensorAlgebra = "0.17.4, 0.18"
+TensorAlgebra = "0.19"
 Test = "<0.0.1, 1"

From 6378172062eeb9d13b06f5c4d83f8a50fdcd9c88 Mon Sep 17 00:00:00 2001
From: Matthew Fishman <mfishman@flatironinstitute.org>
Date: Tue, 4 Aug 2026 17:19:58 -0400
Subject: [PATCH 2/2] Drop the TensorAlgebra [sources] pin now that 0.19 is
 registered

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
---
 Project.toml | 4 ----
 1 file changed, 4 deletions(-)

diff --git a/Project.toml b/Project.toml
index 0a7c569f..935f9368 100644
--- a/Project.toml
+++ b/Project.toml
@@ -19,10 +19,6 @@ Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
 TensorAlgebra = "68bd88dc-f39d-4e12-b2ca-f046b68fcc6a"
 
-[sources.TensorAlgebra]
-rev = "mf/matricize-style"
-url = "https://github.com/ITensor/TensorAlgebra.jl"
-
 [compat]
 Accessors = "0.1.41"
 Adapt = "4.3"