diff --git a/.github/workflows/comment_trigger_benchmark.yml b/.github/workflows/comment_trigger_benchmark.yml
deleted file mode 100644
index 2c836f2b92..0000000000
--- a/.github/workflows/comment_trigger_benchmark.yml
+++ /dev/null
@@ -1,44 +0,0 @@
-name: Run benchmarks from comment trigger
-
-# https://dev.to/zirkelc/trigger-github-workflow-for-comment-on-pull-request-45l2
-
-on:
-  issue_comment:
-    types: [created]
-
-jobs:
-  benchmark:
-    if: github.event.issue.pull_request && contains(github.event.comment.body, '[benchmark]')
-    runs-on: ubuntu-latest
-    env:
-      JULIA_NUM_THREADS: 2
-    steps:
-      - name: Get PR branch
-        uses: xt0rted/pull-request-comment-branch@v1
-        id: comment-branch
-      - name: Set latest commit status as pending
-        uses: myrotvorets/set-commit-status-action@master
-        with:
-          sha: ${{ steps.comment-branch.outputs.head_sha }}
-          token: ${{ secrets.GITHUB_TOKEN }}
-          status: pending
-      - name: Checkout PR branch
-        uses: actions/checkout@v3
-        with:
-          # https://github.com/actions/checkout/issues/331#issuecomment-1438220926
-          ref: refs/pull/${{ github.event.issue.number }}/head
-      - name: Setup Node.js 16
-        uses: actions/setup-node@v3
-        with:
-          node-version: 16
-      - uses: julia-actions/setup-julia@latest
-        with:
-          version: 1
-      - name: Install dependencies
-        run: julia -e 'using Pkg; pkg"add PkgBenchmark BenchmarkCI@0.1"'
-      - name: Run benchmarks
-        run: julia -e 'using Pkg; using BenchmarkCI; BenchmarkCI.judge(; baseline="origin/main")'
-      - name: Post results
-        run: julia -e 'using BenchmarkCI; BenchmarkCI.postjudge()'
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/Checklists.txt b/Checklists.txt
index c678af307d..f12962187e 100644
--- a/Checklists.txt
+++ b/Checklists.txt
@@ -21,10 +21,3 @@ Checklist for Updating the Version of Documenter.jl Used
   number for Documenter (under the [compat] section).
 - Create a new PR to confirm that the docs build correctly
   with the new version.
-
-Checklist for Updating the Benchmark CI for New Dependencies
-----------------------------------------------------------
-- If you update the dependencies of the NDTensors or ITensors
-module, the changes need to get reflected in the benchmark
-CI setup.
-- See benchmark/README.md for detailed instructions.
diff --git a/Project.toml b/Project.toml
index 1842bc3b43..1766c6bd56 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "ITensors"
 uuid = "9136182c-28ba-11e9-034c-db9fb085ebd5"
 authors = ["Matthew Fishman <mfishman@flatironinstitute.org>", "Miles Stoudenmire <mstoudenmire@flatironinstitute.org>"]
-version = "0.5.3"
+version = "0.5.4"
 
 [deps]
 Adapt = "79e6a3ab-5dfb-504d-930d-738a2a938a0e"
diff --git a/benchmark/.gitignore b/benchmark/.gitignore
deleted file mode 100644
index bd5ff4fe7f..0000000000
--- a/benchmark/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-dmrg
-2ddmrg
-*.o
diff --git a/benchmark/Manifest.toml b/benchmark/Manifest.toml
deleted file mode 100644
index 020f11955a..0000000000
--- a/benchmark/Manifest.toml
+++ /dev/null
@@ -1,728 +0,0 @@
-# This file is machine-generated - editing it directly is not advised
-
-julia_version = "1.9.3"
-manifest_format = "2.0"
-project_hash = "311c1b8568425b5001e5052f098847bd1c9846a5"
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-
-    [deps.Accessors.extensions]
-    AccessorsAxisKeysExt = "AxisKeys"
-    AccessorsIntervalSetsExt = "IntervalSets"
-    AccessorsStaticArraysExt = "StaticArrays"
-    AccessorsStructArraysExt = "StructArrays"
-
-    [deps.Accessors.weakdeps]
-    AxisKeys = "94b1ba4f-4ee9-5380-92f1-94cde586c3c5"
-    IntervalSets = "8197267c-284f-5f27-9208-e0e47529a953"
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-
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-    BangBangStaticArraysExt = "StaticArrays"
-    BangBangStructArraysExt = "StructArrays"
-    BangBangTypedTablesExt = "TypedTables"
-
-    [deps.BangBang.weakdeps]
-    ChainRulesCore = "d360d2e6-b24c-11e9-a2a3-2a2ae2dbcce4"
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-    [deps.Compat.extensions]
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-
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-
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-[[deps.Dates]]
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diff --git a/benchmark/Project.toml b/benchmark/Project.toml
deleted file mode 100644
index b199dc3c5f..0000000000
--- a/benchmark/Project.toml
+++ /dev/null
@@ -1,4 +0,0 @@
-[deps]
-BenchmarkTools = "6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf"
-ITensors = "9136182c-28ba-11e9-034c-db9fb085ebd5"
-NDTensors = "23ae76d9-e61a-49c4-8f12-3f1a16adf9cf"
diff --git a/benchmark/README.md b/benchmark/README.md
deleted file mode 100644
index ae6b580ca9..0000000000
--- a/benchmark/README.md
+++ /dev/null
@@ -1,57 +0,0 @@
-# ITensor automated benchmarks
-
-These benchmarks run for every PR. They compare a set of benchmarks (such as basic ITensor operations like contraction) between the PR and the main branch of ITensor.
-
-To run the benchmarks, you should go to the benchmark folder and activate the benchmarks project, and run the benchmarks:
-```julia
-julia> using ITensors
-
-julia> cd(joinpath(pkgdir(ITensors), "benchmark"))
-
-julia> using Pkg
-
-julia> Pkg.activate(".")
-
-julia> include("benchmarks.jl")
-
-julia> SUITE
-[...]
-```
-The benchmark results will be stored in the "SUITE" object.
-
-Then you can run the benchmark suite using the [interface from BenchmarkTools](https://juliaci.github.io/BenchmarkTools.jl/stable/manual/#Tuning-and-running-a-BenchmarkGroup).
-```julia
-tune!(SUITE);
-results = run(SUITE; verbose=true, seconds=1)
-```
-
-Alternatively, you can run the benchmarks with the [BencharmkCI interface](https://github.com/tkf/BenchmarkCI.jl#running-benchmarkci-interactively=).
-```julia
-cd(pkgdir(ITensors))
-using BenchmarkCI
-BenchmarkCI.judge()
-BenchmarkCI.displayjudgement()
-```
-
-## Development
-
-If you are developing the ITensors.jl or NDTensors.jl packages, and any of the dependencies of either of those get updated, you will need to update the Manifest.toml file.
-
-You can do that by removing the Manifest.toml file, checking out the ITensors and NDTensors modules for development, and then create a new Manifest.toml file with `Pkg.resolve`:
-```julia
-julia> using ITensors
-
-julia> cd(joinpath(pkgdir(ITensors), "benchmark"))
-
-julia> rm("Manifest.toml"; force=true)
-
-julia> using Pkg
-
-julia> Pkg.activate(".")
-
-julia> Pkg.develop(path=joinpath("..", "NDTensors")) # Develop NDTensors
-
-julia> Pkg.develop(path="..") # Develop ITensors
-
-julia> Pkg.resolve()
-```
diff --git a/benchmark/artifacts/2d_hubbard_conserve_momentum.h5 b/benchmark/artifacts/2d_hubbard_conserve_momentum.h5
deleted file mode 100644
index 4c09583a88..0000000000
Binary files a/benchmark/artifacts/2d_hubbard_conserve_momentum.h5 and /dev/null differ
diff --git a/benchmark/bench_autompo.jl b/benchmark/bench_autompo.jl
deleted file mode 100644
index 4a7f94374a..0000000000
--- a/benchmark/bench_autompo.jl
+++ /dev/null
@@ -1,41 +0,0 @@
-module BenchOpSum
-
-using BenchmarkTools
-using ITensors
-using LinearAlgebra
-
-BLAS.set_num_threads(1)
-ITensors.Strided.set_num_threads(1)
-ITensors.enable_threaded_blocksparse(false)
-
-suite = BenchmarkGroup()
-
-let N = 30
-  s = siteinds("S=1/2", N; conserve_qns=false)
-  a = OpSum()
-  for k in 1:N, l in 1:N, m in 1:N, n in 1:N
-    a .+= "projDn", k, "projDn", l, "projDn", m, "projDn", n
-  end
-
-  # Precompile
-  MPO(a, s)
-
-  suite["Quartic Hamiltonian"] = @benchmarkable MPO($a, $s)
-end
-
-let N = 30
-  s = siteinds("S=1/2", N; conserve_qns=true)
-  a = OpSum()
-  for k in 1:N, l in 1:N, m in 1:N, n in 1:N
-    a .+= "projDn", k, "projDn", l, "projDn", m, "projDn", n
-  end
-
-  # Precompile
-  MPO(a, s)
-
-  suite["Quartic QN Hamiltonian"] = @benchmarkable MPO($a, $s)
-end
-
-end
-
-BenchOpSum.suite
diff --git a/benchmark/bench_contract.jl b/benchmark/bench_contract.jl
deleted file mode 100644
index d14f574bd5..0000000000
--- a/benchmark/bench_contract.jl
+++ /dev/null
@@ -1,119 +0,0 @@
-module BenchContract
-
-using BenchmarkTools
-using ITensors
-using ITensors.HDF5
-using LinearAlgebra
-
-BLAS.set_num_threads(1)
-ITensors.Strided.set_num_threads(1)
-ITensors.enable_threaded_blocksparse(false)
-
-suite = BenchmarkGroup()
-
-suite["matmul"] = BenchmarkGroup()
-suite["matmul"]["allocating"] = BenchmarkGroup()
-suite["matmul"]["inplace"] = BenchmarkGroup()
-for d in 20:20:100
-  i = Index(d)
-  A = randomITensor(i, i')
-  B = randomITensor(i', i'')
-  C = randomITensor(i, i'')
-
-  suite["matmul"]["allocating"]["$d"] = @benchmarkable $A * $B
-  suite["matmul"]["inplace"]["$d"] = @benchmarkable $C .= $A .* $B
-end
-
-suite["heff_2site"] = BenchmarkGroup()
-let
-  s1 = Index(2, "s1,Site")
-  s2 = Index(2, "s2,Site")
-  h1 = Index(10, "h1,Link,H")
-  h2 = Index(10, "h2,Link,H")
-  h3 = Index(10, "h3,Link,H")
-  a1 = Index(100, "a1,Link")
-  a3 = Index(100, "a3,Link")
-  phi = randomITensor(a1, s1, s2, a3)
-  H1 = randomITensor(h1, s1', s1, h2)
-  H2 = randomITensor(h2, s2', s2, h3)
-  L = randomITensor(h1, a1', a1)
-  R = randomITensor(h3, a3', a3)
-
-  suite["heff_2site"]["dense"] = @benchmarkable $phi * $L * $H1 * $H2 * $R
-end
-
-suite["heff_2site"]["blocksparse"] = BenchmarkGroup()
-let
-  """
-  Load the ground state energy `energy`, Hamiltonian MPO `H`, and ground state MPS `psi` resulting from running:
-  ```julia
-  using Pkg
-  Pkg.add(; name="ITensors", version="0.3.25")
-
-  using ITensors
-
-  filename_base = "2d_hubbard_conserve_momentum"
-  example_dir = joinpath(pkgdir(ITensors), "examples", "dmrg")
-  include(joinpath(example_dir, filename_base * ".jl"))
-  kwargs = (; Nx=8, Ny=4, U=4.0, t=1.0, nsweeps=10,
-    maxdim=3000, random_init=false, threaded_blocksparse=true)
-  energy, H, psi = main(; kwargs...);
-
-  function get_effective_hamiltonian(H, psi, center=(length(psi) ÷ 2))
-    psi = orthogonalize(psi, center)
-    PH = ProjMPO(H)
-    PH = position!(PH, psi, center)
-    v = psi[center] * psi[center + 1]
-    L = lproj(PH)
-    R = rproj(PH)
-    H1 = H[center]
-    H2 = H[center + 1]
-    return [v, L, H1, H2, R]
-  end
-
-  tn = get_effective_hamiltonian(H, psi);
-  tn_fluxes = flux.(tn);
-  tn_inds = inds.(tn);
-
-  using ITensors.HDF5
-  file_dir = joinpath(pkgdir(ITensors), "benchmark", "artifacts")
-  mkpath(file_dir)
-  h5open(joinpath(file_dir, filename_base * ".h5"), "w") do fid
-    fid["ntensors"] = length(tn)
-    for j in eachindex(tn)
-      fid["flux[" * string(j) * "]"] = tn_fluxes[j]
-      fid["inds[" * string(j) * "]"] = tn_inds[j]
-    end
-  end
-  ```
-  """
-  file_dir = joinpath(pkgdir(ITensors), "benchmark", "artifacts")
-  tn = h5open(joinpath(file_dir, "2d_hubbard_conserve_momentum.h5")) do fid
-    ntensors = read(fid, "ntensors")
-    tn_fluxes = Vector{QN}(undef, ntensors)
-    tn_inds = Vector{Vector{Index}}(undef, ntensors)
-    for j in 1:ntensors
-      tn_fluxes[j] = read(fid, "flux[" * string(j) * "]", QN)
-      tn_inds[j] = read(fid, "inds[" * string(j) * "]", Vector{<:Index})
-    end
-    tn = [randomITensor(tn_fluxes[j], tn_inds[j]) for j in 1:ntensors]
-    return tn
-  end
-
-  # Correctness check
-  @assert contract([tn; dag(first(tn)')])[] isa Number
-
-  suite["heff_2site"]["blocksparse"]["sequential"] = @benchmarkable begin
-    ITensors.enable_threaded_blocksparse(false)
-    contract($tn)
-  end
-  suite["heff_2site"]["blocksparse"]["threaded"] = @benchmarkable begin
-    ITensors.enable_threaded_blocksparse(true)
-    contract($tn)
-    ITensors.enable_threaded_blocksparse(false)
-  end
-end
-
-end
-
-BenchContract.suite
diff --git a/benchmark/bench_dmrg.jl b/benchmark/bench_dmrg.jl
deleted file mode 100644
index 477bc30479..0000000000
--- a/benchmark/bench_dmrg.jl
+++ /dev/null
@@ -1,43 +0,0 @@
-module BenchDMRG
-
-using BenchmarkTools
-using ITensors
-using LinearAlgebra
-
-BLAS.set_num_threads(1)
-ITensors.Strided.set_num_threads(1)
-ITensors.enable_threaded_blocksparse(false)
-
-suite = BenchmarkGroup()
-
-suite["1d_S=1_heisenberg"] = BenchmarkGroup()
-for conserve_qns in (false, true)
-  n = 100
-  sites = siteinds("S=1", n)
-  opsum = OpSum()
-  for j in 1:(n - 1)
-    opsum += "Sz", j, "Sz", j + 1
-    opsum += 0.5, "S+", j, "S-", j + 1
-    opsum += 0.5, "S-", j, "S+", j + 1
-  end
-  H = MPO(opsum, sites)
-  state = [isodd(j) ? "↑" : "↓" for j in 1:n]
-  psi = MPS(sites, state)
-
-  # Sweeping parameters
-  nsweeps = 5
-  maxdim = [10, 20, 100, 100, 200]
-  cutoff = 1e-10
-  kwargs = (; nsweeps, cutoff, maxdim, outputlevel=0)
-
-  # Precompile
-  dmrg(H, psi; kwargs...)
-
-  suite["1d_S=1_heisenberg"]["conserve_qns_$conserve_qns"] = @benchmarkable begin
-    dmrg($H, $psi; $kwargs...)
-  end
-end
-
-end
-
-BenchDMRG.suite
diff --git a/benchmark/bench_getsetindex.jl b/benchmark/bench_getsetindex.jl
deleted file mode 100644
index 969a1cfe72..0000000000
--- a/benchmark/bench_getsetindex.jl
+++ /dev/null
@@ -1,26 +0,0 @@
-module BenchGetSetIndex
-
-using BenchmarkTools
-using ITensors
-using LinearAlgebra
-
-BLAS.set_num_threads(1)
-ITensors.Strided.set_num_threads(1)
-ITensors.enable_threaded_blocksparse(false)
-
-suite = BenchmarkGroup()
-
-i = Index(100)
-A = randomITensor(i', i)
-
-suite["setindex!"] = @benchmarkable $A[1, 1] = 1.0
-suite["setindex! end"] = @benchmarkable $A[1, end] = 1.0
-suite["setindex! indval"] = @benchmarkable $A[$(i') => 1, $i => 1] = 1.0
-suite["setindex! indval end"] = @benchmarkable $A[$(i') => 1, $i => end] = 1.0
-suite["getindex"] = @benchmarkable $A[1, 1]
-suite["getindex end"] = @benchmarkable $A[1, end]
-suite["getindex indval"] = @benchmarkable $A[$(i') => 1, $i => 1]
-suite["getindex indval end"] = @benchmarkable $A[$(i') => 1, $i => end]
-end
-
-BenchGetSetIndex.suite
diff --git a/benchmark/bench_indexset.jl b/benchmark/bench_indexset.jl
deleted file mode 100644
index 0700b43661..0000000000
--- a/benchmark/bench_indexset.jl
+++ /dev/null
@@ -1,62 +0,0 @@
-module BenchIndexSet
-
-using BenchmarkTools
-using ITensors
-using LinearAlgebra
-
-BLAS.set_num_threads(1)
-ITensors.Strided.set_num_threads(1)
-ITensors.enable_threaded_blocksparse(false)
-
-suite = BenchmarkGroup()
-
-i = Index(2)
-is = IndexSet(n -> i^(n - 1), Order(10))
-is_tuple = ntuple(n -> i^(n - 1), Val(10))
-
-suite["constructor"] = BenchmarkGroup()
-
-suite["constructor"]["function"] = @benchmarkable IndexSet($(n -> i^(n - 1)), $(Order(6)))
-suite["constructor"]["function, tuple"] = @benchmarkable ntuple(
-  $(n -> i^(n - 1)), $(Val(6))
-)
-
-suite["filter"] = BenchmarkGroup()
-
-suite["filter"]["kwargs"] = @benchmarkable filter($is; plev=3)
-suite["filter"]["function"] = @benchmarkable filter($(i -> plev(i) < 2), $is)
-suite["filter"]["function, tuple"] = @benchmarkable filter($(i -> plev(i) < 2), $is_tuple)
-
-i, j, k, l = Index.(2, ("i", "j", "k", "l"))
-
-Iij = (i, j)
-Ijl = (j, l)
-Ikl = (k, l)
-Iijk = (i, j, k)
-
-suite["set_functions"] = BenchmarkGroup()
-
-suite["set_functions"]["uniqueinds"] = BenchmarkGroup()
-suite["set_functions"]["uniqueinds"]["nofilter2"] = @benchmarkable uniqueinds($Iijk, $Ikl)
-suite["set_functions"]["uniqueinds"]["nofilter0"] = @benchmarkable uniqueinds($Iij, $Iijk)
-suite["set_functions"]["uniqueinds"]["filter_tags"] = @benchmarkable uniqueinds(
-  $Iijk, $Ikl; tags=$(ts"i")
-)
-suite["set_functions"]["uniqueinds"]["filter_not_tags"] = @benchmarkable uniqueinds(
-  $Iijk, $Ikl; tags=$(not("i"))
-)
-suite["set_functions"]["uniqueinds"]["3_inputs"] = @benchmarkable uniqueinds(
-  $Iijk, $Ijl, $Ikl
-)
-
-A = randomITensor(i'', i', i)
-
-suite["set_functions"]["prime, ITensor"] = @benchmarkable prime($A)
-suite["set_functions"]["uniqueinds, ITensor"] = @benchmarkable uniqueinds($(A'), $A)
-suite["set_functions"]["commoninds, ITensor"] = @benchmarkable commoninds($(A'), $A)
-suite["set_functions"]["unioninds, ITensor"] = @benchmarkable unioninds($(A'), $A)
-suite["set_functions"]["noncommoninds, ITensor"] = @benchmarkable noncommoninds($(A'), $A)
-
-end
-
-BenchIndexSet.suite
diff --git a/benchmark/bench_inplace.jl b/benchmark/bench_inplace.jl
deleted file mode 100644
index e2d6ba7119..0000000000
--- a/benchmark/bench_inplace.jl
+++ /dev/null
@@ -1,20 +0,0 @@
-module BenchInplace
-
-using BenchmarkTools
-using ITensors
-using LinearAlgebra
-
-BLAS.set_num_threads(1)
-ITensors.Strided.set_num_threads(1)
-ITensors.enable_threaded_blocksparse(false)
-
-suite = BenchmarkGroup()
-
-i = Index(100)
-A = randomITensor(i', i)
-B = randomITensor(i, i')
-
-suite["axpy!"] = @benchmarkable axpy!(2, $A, $B)
-end
-
-BenchInplace.suite
diff --git a/benchmark/bench_op.jl b/benchmark/bench_op.jl
deleted file mode 100644
index 4e4c1e8d88..0000000000
--- a/benchmark/bench_op.jl
+++ /dev/null
@@ -1,25 +0,0 @@
-module BenchOp
-
-using BenchmarkTools
-using ITensors
-using LinearAlgebra
-
-BLAS.set_num_threads(1)
-ITensors.Strided.set_num_threads(1)
-ITensors.enable_threaded_blocksparse(false)
-
-suite = BenchmarkGroup()
-
-let N = 4
-  s = siteinds("S=1/2", N; conserve_qns=false)
-  suite["op"] = @benchmarkable op("Sz", $s, 1)
-end
-
-let N = 4
-  s = siteinds("S=1/2", N; conserve_qns=true)
-  suite["op QN"] = @benchmarkable op("Sz", $s, 1)
-end
-
-end
-
-BenchOp.suite
diff --git a/benchmark/bench_tagset.jl b/benchmark/bench_tagset.jl
deleted file mode 100644
index b2b04d4f92..0000000000
--- a/benchmark/bench_tagset.jl
+++ /dev/null
@@ -1,20 +0,0 @@
-module BenchTagSet
-
-using BenchmarkTools
-using ITensors
-using LinearAlgebra
-
-BLAS.set_num_threads(1)
-ITensors.Strided.set_num_threads(1)
-ITensors.enable_threaded_blocksparse(false)
-
-suite = BenchmarkGroup()
-
-suite["tagset"] = @benchmarkable TagSet("abcdefgh,ijklmnop,qrstuvwx,ABCDEFGH")
-suite["tagset_unicode"] = @benchmarkable TagSet("αβγδϵζηθ,ijklmnop,qrstuvwx,ΑΒΓΔΕΖΗΘ")
-suite["tagset_long"] = @benchmarkable TagSet(
-  "abcdefghijklm,nopqrstuvwxyz,ABCDEFGHIJKLM,NOPQRSTUVWXYZ"
-)
-end
-
-BenchTagSet.suite
diff --git a/benchmark/benchmarks.jl b/benchmark/benchmarks.jl
deleted file mode 100644
index 9a96d20bd9..0000000000
--- a/benchmark/benchmarks.jl
+++ /dev/null
@@ -1,9 +0,0 @@
-using BenchmarkTools
-
-const SUITE = BenchmarkGroup()
-
-for file in readdir(@__DIR__)
-  if startswith(file, "bench_") && endswith(file, ".jl")
-    SUITE[file[(length("bench_") + 1):(end - length(".jl"))]] = include(file)
-  end
-end