diff --git a/.github/scripts/docker/generate_build_matrix.py b/.github/scripts/docker/generate_build_matrix.py
index 492d3ed475..08281151ee 100755
--- a/.github/scripts/docker/generate_build_matrix.py
+++ b/.github/scripts/docker/generate_build_matrix.py
@@ -48,10 +48,11 @@ def get_matrix():
     version = "20240905"
     python_version = ["3.8", "3.9", "3.10", "3.11", "3.12"]
     torch_version = []
-    torch_version += ["1.13.0", "1.13.1"]
-    torch_version += ["2.0.0", "2.0.1"]
-    torch_version += ["2.1.0", "2.1.1", "2.1.2"]
-    torch_version += ["2.2.0", "2.2.1", "2.2.2"]
+    #  torch_version += ["1.13.0", "1.13.1"]
+    #  torch_version += ["2.0.0", "2.0.1"]
+    #  torch_version += ["2.1.0", "2.1.1", "2.1.2"]
+    #  torch_version += ["2.2.0", "2.2.1", "2.2.2"]
+    # Test only torch >= 2.3.0
     torch_version += ["2.3.0", "2.3.1"]
     torch_version += ["2.4.0"]
     torch_version += ["2.4.1"]
diff --git a/.github/scripts/run-gigaspeech-pruned-transducer-stateless2-2022-05-12.sh b/.github/scripts/run-gigaspeech-pruned-transducer-stateless2-2022-05-12.sh
index b61a9d7b63..c9e798a68d 100755
--- a/.github/scripts/run-gigaspeech-pruned-transducer-stateless2-2022-05-12.sh
+++ b/.github/scripts/run-gigaspeech-pruned-transducer-stateless2-2022-05-12.sh
@@ -29,8 +29,8 @@ if [[ x"${GITHUB_EVENT_NAME}" == x"schedule" || x"${GITHUB_EVENT_LABEL_NAME}" ==
   ls -lh data/fbank
   ls -lh pruned_transducer_stateless2/exp
 
-  ln -s data/fbank/cuts_DEV.jsonl.gz data/fbank/gigaspeech_cuts_DEV.jsonl.gz
-  ln -s data/fbank/cuts_TEST.jsonl.gz data/fbank/gigaspeech_cuts_TEST.jsonl.gz
+  ln -sf data/fbank/cuts_DEV.jsonl.gz data/fbank/gigaspeech_cuts_DEV.jsonl.gz
+  ln -sf data/fbank/cuts_TEST.jsonl.gz data/fbank/gigaspeech_cuts_TEST.jsonl.gz
 
   log "Decoding dev and test"
 
diff --git a/.github/scripts/test-onnx-export.sh b/.github/scripts/test-onnx-export.sh
index fcfc11fa6f..3252c37f12 100755
--- a/.github/scripts/test-onnx-export.sh
+++ b/.github/scripts/test-onnx-export.sh
@@ -25,6 +25,7 @@ popd
 
 log "Export via torch.jit.script()"
 ./zipformer/export.py \
+  --use-averaged-model 0 \
   --exp-dir $repo/exp \
   --tokens $repo/data/lang_bpe_500/tokens.txt \
   --epoch 99 \
diff --git a/.github/workflows/build-doc.yml b/.github/workflows/build-doc.yml
index c622476f2d..ca96e6de5e 100644
--- a/.github/workflows/build-doc.yml
+++ b/.github/workflows/build-doc.yml
@@ -26,6 +26,8 @@ on:
   pull_request:
     types: [labeled]
 
+  workflow_dispatch:
+
 concurrency:
   group: build_doc-${{ github.ref }}
   cancel-in-progress: true
diff --git a/.github/workflows/run-gigaspeech-2022-05-13.yml b/.github/workflows/run-gigaspeech-2022-05-13.yml
index 3121520c1b..2c1d44fbfe 100644
--- a/.github/workflows/run-gigaspeech-2022-05-13.yml
+++ b/.github/workflows/run-gigaspeech-2022-05-13.yml
@@ -33,6 +33,8 @@ on:
     # nightly build at 15:50 UTC time every day
     - cron: "50 15 * * *"
 
+  workflow_dispatch:
+
 concurrency:
   group: run_gigaspeech_2022_05_13-${{ github.ref }}
   cancel-in-progress: true
@@ -119,7 +121,7 @@ jobs:
           find exp/greedy_search -name "log-*" -exec grep -n --color "best for test" {} + | sort -n -k2
 
       - name: Upload decoding results for gigaspeech pruned_transducer_stateless2
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
           name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-gigaspeech-pruned_transducer_stateless2-2022-05-12
diff --git a/.github/workflows/run-gigaspeech-zipformer-2023-10-17.yml b/.github/workflows/run-gigaspeech-zipformer-2023-10-17.yml
index 87090e3106..4ecc2aea04 100644
--- a/.github/workflows/run-gigaspeech-zipformer-2023-10-17.yml
+++ b/.github/workflows/run-gigaspeech-zipformer-2023-10-17.yml
@@ -42,7 +42,7 @@ concurrency:
 
 jobs:
   run_gigaspeech_2023_10_17_zipformer:
-    if: github.event.label.name == 'zipformer' ||github.event.label.name == 'ready' || github.event.label.name == 'run-decode' || github.event_name == 'push' || github.event_name == 'schedule'
+    if: github.event.label.name == 'zipformer' ||github.event.label.name == 'ready' || github.event.label.name == 'run-decode' || github.event_name == 'push' || github.event_name == 'schedule' || github.event_name == 'workflow_dispatch'
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
@@ -133,7 +133,7 @@ jobs:
           find exp/modified_beam_search -name "log-*" -exec grep -n --color "best for test-other" {} + | sort -n -k2
 
       - name: Upload decoding results for gigaspeech zipformer
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: github.event_name == 'schedule' || github.event.label.name == 'run-decode'
         with:
           name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-zipformer-2022-11-11
diff --git a/.github/workflows/run-librispeech-lstm-transducer-stateless2-2022-09-03.yml b/.github/workflows/run-librispeech-lstm-transducer-stateless2-2022-09-03.yml
index 501fae38c9..6a3f4eb40a 100644
--- a/.github/workflows/run-librispeech-lstm-transducer-stateless2-2022-09-03.yml
+++ b/.github/workflows/run-librispeech-lstm-transducer-stateless2-2022-09-03.yml
@@ -16,6 +16,8 @@ on:
     # nightly build at 15:50 UTC time every day
     - cron: "50 15 * * *"
 
+  workflow_dispatch:
+
 concurrency:
   group: run_librispeech_lstm_transducer_stateless2_2022_09_03-${{ github.ref }}
   cancel-in-progress: true
@@ -156,7 +158,7 @@ jobs:
           find modified_beam_search_LODR  -name "log-*" -exec grep -n --color "best for test-other" {} + | sort -n -k2
 
       - name: Upload decoding results for lstm_transducer_stateless2
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: github.event_name == 'schedule' || github.event.label.name == 'shallow-fusion' || github.event.label.name == 'LODR'
         with:
           name: torch-${{ matrix.torch }}-python-${{ matrix.python-version }}-ubuntu-latest-cpu-lstm_transducer_stateless2-2022-09-03
diff --git a/.github/workflows/run-multi-corpora-zipformer.yml b/.github/workflows/run-multi-corpora-zipformer.yml
index 38f7eb9087..84f9f3a0d3 100644
--- a/.github/workflows/run-multi-corpora-zipformer.yml
+++ b/.github/workflows/run-multi-corpora-zipformer.yml
@@ -23,6 +23,8 @@ on:
   pull_request:
     types: [labeled]
 
+  workflow_dispatch:
+
 concurrency:
   group: run_multi-corpora_zipformer-${{ github.ref }}
   cancel-in-progress: true
diff --git a/.github/workflows/run-ptb-rnn-lm.yml b/.github/workflows/run-ptb-rnn-lm.yml
index f8d9c02c58..6e4077cf44 100644
--- a/.github/workflows/run-ptb-rnn-lm.yml
+++ b/.github/workflows/run-ptb-rnn-lm.yml
@@ -16,6 +16,8 @@ on:
     # nightly build at 15:50 UTC time every day
     - cron: "50 15 * * *"
 
+  workflow_dispatch:
+
 concurrency:
   group: run_ptb_rnn_lm_training-${{ github.ref }}
   cancel-in-progress: true
@@ -64,7 +66,7 @@ jobs:
           ./train-rnn-lm.sh --world-size 1 --num-epochs 5 --use-epoch 4 --use-avg 2
 
       - name: Upload pretrained models
-        uses: actions/upload-artifact@v2
+        uses: actions/upload-artifact@v4
         if: github.event.label.name == 'ready' || github.event.label.name == 'rnnlm' || github.event_name == 'push' || github.event_name == 'schedule'
         with:
           name: python-${{ matrix.python-version }}-ubuntu-rnn-lm-ptb
diff --git a/.github/workflows/run-swbd-conformer-ctc.yml b/.github/workflows/run-swbd-conformer-ctc.yml
index 842691d38c..b0178bedd0 100644
--- a/.github/workflows/run-swbd-conformer-ctc.yml
+++ b/.github/workflows/run-swbd-conformer-ctc.yml
@@ -23,6 +23,8 @@ on:
   pull_request:
     types: [labeled]
 
+  workflow_dispatch:
+
 concurrency:
   group: run-swbd-conformer_ctc-${{ github.ref }}
   cancel-in-progress: true
diff --git a/.github/workflows/run-wenetspeech-pruned-transducer-stateless2.yml b/.github/workflows/run-wenetspeech-pruned-transducer-stateless2.yml
index 319a5558a3..e76497ec36 100644
--- a/.github/workflows/run-wenetspeech-pruned-transducer-stateless2.yml
+++ b/.github/workflows/run-wenetspeech-pruned-transducer-stateless2.yml
@@ -23,6 +23,8 @@ on:
   pull_request:
     types: [labeled]
 
+  workflow_dispatch:
+
 concurrency:
   group: run_wenetspeech_pruned_transducer_stateless2-${{ github.ref }}
   cancel-in-progress: true
diff --git a/.github/workflows/style_check.yml b/.github/workflows/style_check.yml
index 1c37f13edd..0681ece606 100644
--- a/.github/workflows/style_check.yml
+++ b/.github/workflows/style_check.yml
@@ -24,6 +24,8 @@ on:
     branches:
       - master
 
+  workflow_dispatch:
+
 concurrency:
   group: style_check-${{ github.ref }}
   cancel-in-progress: true
diff --git a/.github/workflows/test-ncnn-export.yml b/.github/workflows/test-ncnn-export.yml
index 5709f8ebb0..ec419d65f8 100644
--- a/.github/workflows/test-ncnn-export.yml
+++ b/.github/workflows/test-ncnn-export.yml
@@ -16,6 +16,8 @@ on:
     # nightly build at 15:50 UTC time every day
     - cron: "50 15 * * *"
 
+  workflow_dispatch:
+
 concurrency:
   group: test_ncnn_export-${{ github.ref }}
   cancel-in-progress: true
diff --git a/.github/workflows/test-onnx-export.yml b/.github/workflows/test-onnx-export.yml
index c05cde3ba0..646ca05692 100644
--- a/.github/workflows/test-onnx-export.yml
+++ b/.github/workflows/test-onnx-export.yml
@@ -16,6 +16,8 @@ on:
     # nightly build at 15:50 UTC time every day
     - cron: "50 15 * * *"
 
+  workflow_dispatch:
+
 concurrency:
   group: test_onnx_export-${{ github.ref }}
   cancel-in-progress: true
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 659681b37e..9eb7e403ce 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -105,7 +105,7 @@ jobs:
               cd ../zipformer
               pytest -v -s
 
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v4
         with:
           path: egs/librispeech/ASR/zipformer/swoosh.pdf
           name: swoosh.pdf