New Features

• [New Features][ESPnet1][ESPnet2][Installation][README] CTC Segmentation for ESPnet 2 #3087 by @lumaku

Bugfix

• [Bugfix][ESPnet1] Fix merge_short_segments.py #3171 by @hirofumi0810
• [Bugfix][ESPnet1] update layer norm to reflect the dimension variable #3193 by @sw005320
• [Bugfix][ESPnet1][ASR] Fix a bug about variable spelling errors #3208 by @lzm0706
• [Bugfix][ESPnet1][ST] Fix ST-TED data preparation #3167 by @hirofumi0810
• [Bugfix][ESPnet2] Fix a bug of adding noise to the training data. #3220 by @pengchengguo
• [Bugfix][ESPnet2] fix a bug in the CTC mode #3190 by @sw005320
• [Bugfix][ESPnet2] fix typo for AdapterForSoundScpReader #3096 by @deciding
• [Bugfix][ESPnet2] remove find_unused_parameters from DataParallel #3149 by @kamo-naoyuki
• [Bugfix][ESPnet2][ASR] Changed to include nlsyms.txt in the pretrained model #3236 by @kamo-naoyuki
• [Bugfix][ESPnet2][ASR] Fix missing nlsyms.txt for pretrained models #3234 by @lumaku
• [Bugfix][ESPnet2][ASR] Workaround for missing nlsyms.txt #3235 by @kamo-naoyuki
• [Bugfix][ESPnet1][ASR][Installation] GTN CTC bug fix, unit test, and installer #3199 by @brianyan918
• [Bugfix][ESPnet2][README] Update README.md, edit wrong file link. #3164 by @xxjjvxb

Enhancement

• [Enhancement] Added "trans_type" to utils/remove_longshortdata.sh and utils/update_json.sh #3148 by @teinhonglo
• [Enhancement][ESPnet2][SE][README] Update the readme file for the SE demo page. #3225 by @LiChenda
• [Enhancement][ESPnet2][ASR][README] update asr demo #3192 by @ftshijt

Recipe

• [Recipe][ESPnet1][ASR] Fix segmentation in IWSLT21 ASR #3169 by @hirofumi0810
• [Recipe][ESPnet1][ASR] Fix tokenization on TEDLIUM2 in IWSLT21 ASR recipe #3142 by @hirofumi0810
• [Recipe][ESPnet1][ASR] fix add_to_datadir.py in mgb2 recipe #3238 by @AshrafMahdhi
• [Recipe][ESPnet1][ASR] fix receipe bug for swbd #3174 by @yuekaizhang
• [Recipe][ESPnet1][ASR][RNNT] Transducer configs & results for AISHELL-1 #3240 by @yusshino
• [Recipe][ESPnet1][ASR][ST] Fix IWSLT21 recipe for test set evaluation #3155 by @hirofumi0810
• [Recipe][ESPnet1][ESPnet2][README] endangered language recognition espnet2 recipe #3214 by @ftshijt
• [Recipe][ESPnet1][MT] Add IWSLT21 MT recipe #3140 by @hirofumi0810
• [Recipe][ESPnet1][ST] Add IWSLT21 ST recipe #3150 by @hirofumi0810
• [Recipe][ESPnet1][ST] Fix IWSLT evaluation data preparation #3168 by @hirofumi0810
• [Recipe][ESPnet1][ST] IWSLT21 punctuation restoration recipe #3145 by @hirofumi0810
• [Recipe][ESPnet1][ST] Merge short segments in IWSLT test sets #3162 by @hirofumi0810
• [Recipe][ESPnet1][TTS] Fix misspelling in ./egs/jsut/tts1/local/download.sh #3227 by @muramasa2
• [Recipe][ESPnet2][ASR] Normalization for Open_li52 #3215 by @ftshijt
• [Recipe][ESPnet2][SE] ESPnet-SE Recipe for noisy reverberant dataset #3243 by @LiChenda
• [Recipe][ESPnet2][SE][README] Update recipes for speech enhancement task #3153 by @LiChenda

Acknowledgements

Special thanks to @AshrafMahdhi, @LiChenda, @brianyan918, @deciding, @ftshijt, @hirofumi0810, @kamo-naoyuki, @lumaku, @lzm0706, @muramasa2, @pengchengguo, @sw005320, @teinhonglo, @xxjjvxb, @yuekaizhang, @yusshino.