New Features

• [New Features][ESPnet2] Implement --grad_clip_type #2399 by @kamo-naoyuki
• [New Features][ESPnet2][ASR] Implement batch_score() method for ASR decoder and LM #2377 by @kamo-naoyuki
• [New Features][ESPnet2][README][TTS] Support Conformer-based FastSpeech / FastSpeech2 #2413 by @kan-bayashi

Bugfix

• [Bugfix][CI][ESPnet1][ESPnet2] make sure chainer independent #2411 by @kamo-naoyuki
• [Bugfix][CI][ESPnet1][Installation] Revert ctc seg installation #2392 by @kan-bayashi
• [Bugfix][CI][Installation] Fix the installation error in CI #2476 by @kan-bayashi
• [Bugfix][ESPnet1][ASR] Lazy import chainer in asr_utils.py #2407 by @kamo-naoyuki
• [Bugfix][ESPnet1][ASR] asr: Fix recog issue on Transformer CTC model #2394 by @jaesong
• [Bugfix][ESPnet1][MT][ST] Fix score_bleu.sh #2400 by @hirofumi0810
• [Bugfix][ESPnet1][README][Typo] fixed typo in egs/README.md #2473 by @mrazizi
• [Bugfix][ESPnet1][TTS] lazy import chainer: espnet/nets/tts_interface.py #2409 by @kamo-naoyuki
• [Bugfix][ESPnet2] Add missing database in db.sh #2427 by @kan-bayashi
• [Bugfix][ESPnet2] Fix the CommonPreprocessor_multi missing issue #2460 by @LiChenda
• [Bugfix][ESPnet2] Minor fix of egs2/commonvoice/asr1/local/data.sh #2438 by @kamo-naoyuki
• [Bugfix][ESPnet2] fix the directory for init_file_prefix #2412 by @kamo-naoyuki
• [Bugfix][ESPnet2] fix typo of log_level choices #2472 by @glynpu
• [Bugfix][ESPnet2][ASR] Add grep -H option #2388 by @kamo-naoyuki
• [Bugfix][ESPnet2][TTS] Fix wrong sum axis in energy extraction #2469 by @kan-bayashi
• [Bugfix][ESPnet2][Typo] Fix typo in help comment and docstrings #2470 by @kan-bayashi
• [Bugfix][Installation] add warpctc_pytorch version==0.1.2 #2403 by @kamo-naoyuki

Documentation

• [Documentation] Add bug report template #2396 by @sw005320
• [Documentation] Add installation issue template #2397 by @sw005320
• [Documentation] Update espnet2_distributed.md #2418 by @kamo-naoyuki
• [Documentation] Update espnet2_distributed.md #2419 by @kamo-naoyuki
• [Documentation] Update espnet2_training_option.md #2421 by @kamo-naoyuki
• [Documentation] Update faq.md #2431 by @kamo-naoyuki
• [Documentation] Update parallelization.md #2428 by @kamo-naoyuki
• [Documentation][ESPnet2][README] Update README.md #2430 by @kamo-naoyuki

Enhancement

• [Enhancement][ESPnet1][ESPnet2] Add -c option for multi GPUs mode for slurm.conf #2406 by @kamo-naoyuki
• [Enhancement][ESPnet1][Installation] Install warpctc-pytorch wheel when torch version is 1.1, 1.2 or 1.3 #2453 by @ysk24ok
• [Enhancement][ESPnet1][README] ADD CSJ RNN pretrained model #2452 by @jnishi
• [Enhancement][ESPnet2] Update db.sh #2426 by @kamo-naoyuki
• [Enhancement][ESPnet2][TTS] Update ESPnet2 TTS config #2468 by @kan-bayashi
• [Enhancement][ESPnet2][TTS] Update and add fastspeech2 configs #2429 by @kan-bayashi
• [Enhancement][Installation] Add sanity check for setup_cuda_env.sh #2389 by @kamo-naoyuki
• [Enhancement][Installation] Change cudatoolkit to cuda if cuda_version=8.0 #2405 by @kamo-naoyuki
• [Enhancement][Installation] Change to refer https://anaconda.org/pytorch/pytorch/files #2404 by @kamo-naoyuki
• [Enhancement][Installation] Workaround for soundfile issue #2437 by @kamo-naoyuki

Recipe

• [Recipe][ESPnet1][ASR] Add LibriCSS recipe #2246 by @akreal
• [Recipe][ESPnet1][ASR] Update for the Official Split of YM Recipe #2435 by @ftshijt
• [Recipe][ESPnet1][ESPnet2][ASR] Update CommonVoice for Latest Version #2455 by @ftshijt
• [Recipe][ESPnet2][ASR] [zeroth korean] Not to use pipe format if feats_type=raw #2402 by @kamo-naoyuki
• [Recipe][ESPnet2][ASR][README] espnet2 zeroth_korean recipe changing feats_type from fbank_pitch to raw. #2393 by @hchung12
• [Recipe][ESPnet2][README][TTS] Add ESPnet2 TTS finetuning example recipe (JVS) #2465 by @kan-bayashi

CI

• [CI] Add codecov actions. #2467 by @ShigekiKarita
• [CI] Fix hangup of unittests #2424 by @kamo-naoyuki
• [CI] Make espnet2 tts test faster #2461 by @kan-bayashi
• [CI] Make test_e2e_{asr,st,mt}_{transformer,conformer}.py faster. #2464 by @ShigekiKarita
• [CI] Update .gitignore #2434 by @kan-bayashi
• [CI][ESPnet1] Make test_(batch_)beam_search.py faster. #2462 by @ShigekiKarita
• [CI][ESPnet1] Support Debian9 and CentOS7 in Github Actions #2457 by @ShigekiKarita
• [CI][ESPnet1][Installation] Fix HKUST recipe #2440 by @kamo-naoyuki

Acknowledgements

Special thanks to @LiChenda, @ShigekiKarita, @akreal, @ftshijt, @glynpu, @hchung12, @hirofumi0810, @jaesong, @jnishi, @kamo-naoyuki, @kan-bayashi, @mrazizi, @sw005320, @ysk24ok.