v3.0.1

Based on transformers v4.17.0

New

• Support float reduction factors in bottleneck adapter configs (@calpt via #339)

Fixed

• [AdapterTrainer] add missing preprocess_logits_for_metrics argument (@stefan-it via #317)
• Fix save_all_adapters such that with_head is not ignored (@hSterz via #325)
• Fix inferring batch size for prefix tuning (@calpt via #335)
• Fix bug when using compacters with AdapterSetup context (@calpt via #328)
• [Trainer] Fix issue with AdapterFusion and load_best_model_at_end (@calpt via #341)
• Fix generation with GPT-2, T5 and Prefix Tuning (@calpt via #343)

v3.0.0

Based on transformers v4.17.0

New

Efficient Fine-Tuning Methods

• Add Prefix Tuning (@calpt via #292)
• Add Parallel adapters & Mix-and-Match adapter (@calpt via #292)
• Add Compacter (@hSterz via #297)

Misc

• Introduce XAdapterModel classes as central & recommended model classes (@calpt via #289)
• Introduce ConfigUnion class for flexible combination of adapter configs (@calpt via #292)
• Add AdapterSetup context manager to replace adapter_names parameter (@calpt via #257)
• Add ForwardContext to wrap model forward pass with adapters (@calpt via #267, #295)
• Search all remote sources when passing source=None (new default) to load_adapter() (@calpt via #309)

Changed

• Deprecate XModelWithHeads in favor of XAdapterModel (@calpt via #289)
• Refactored adapter integration into model classes and model configs (@calpt via #263, #304)
• Rename activation functions to match Transformers' names (@hSterz via #298)
• Upgrade of underlying transformers version (@calpt via #311)

Fixed

• Fix seq2seq generation with flexible heads classes (@calpt via #275, @hSterz via #285)
• Parallel composition for XLM-Roberta (@calpt via #305)

v2.3.0

Based on transformers v4.12.5

New

• Allow adding, loading & training of model embeddings (@hSterz via #245). See https://docs.adapterhub.ml/embeddings.html.

Changed

• Unify built-in & custom head implementation (@hSterz via #252)
• Upgrade of underlying transformers version (@calpt via #255)

Fixed

• Fix documentation and consistency issues for AdapterFusion methods (@calpt via #259)
• Fix serialization/ deserialization issues with custom adapter config classes (@calpt via #253)

v2.2.0

Based on transformers v4.11.3

New

Model support

• T5 adapter implementation (@AmirAktify & @hSterz via #182)
• EncoderDecoderModel adapter implementation (@calpt via #222)

Prediction heads

• AutoModelWithHeads prediction heads for language modeling (@calpt via #210)
• AutoModelWithHeads prediction head & training example for dependency parsing (@calpt via #208)

Training

• Add a new AdapterTrainer for training adapters (@hSterz via #218, #241 )
• Enable training of Parallel block (@hSterz via #226)

Misc

• Add get_adapter_info() method (@calpt via #220)
• Add set_active argument to add & load adapter/fusion/head methods (@calpt via #214)
• Minor improvements for adapter card creation for HF Hub upload (@calpt via #225)

Changed

• Upgrade of underlying transformers version (@calpt via #232, #234, #239 )
• Allow multiple AdapterFusion configs per model; remove set_adapter_fusion_config() (@calpt via #216)

Fixed

• Incorrect referencing between adapter layer and layer norm for DataParallel (@calpt via #228)

v2.1.0

Based on transformers v4.8.2

New

Integration into HuggingFace's Model Hub

• Add support for loading adapters from HuggingFace Model Hub (@calpt via #162)
• Add method to push adapters to HuggingFace Model Hub (@calpt via #197)
• Learn more

BatchSplit adapter composition

• BatchSplit composition block for adapters and heads (@hSterz via #177)
• Learn more

Various new features

• Add automatic conversion of static heads when loaded via XModelWithHeads (@calpt via #181)
  Learn more
• Add list_adapters() method to search for adapters (@calpt via #193)
  Learn more
• Add delete_adapter(), delete_adapter_fusion() and delete_head() methods (@calpt via #189)
• MAD-X 2.0 WikiAnn NER notebook (@hSterz via #187)
• Upgrade of underlying transformers version (@hSterz via #183, @calpt via #194 & #200)

Changed

• Deprecate add_fusion() and train_fusion() in favor of add_adapter_fusion() and train_adapter_fusion() (@calpt via #190)

Fixed

• Suppress no-adapter warning when adapter_names is given (@calpt via #186)
• leave_out in load_adapter() when loading language adapters from Hub (@hSterz via #177)

v2.0.1

Based on transformers v4.5.1

New

• Allow different reduction factors for different adapter layers (@hSterz via #161)
• Allow dynamic dropping of adapter layers in load_adapter() (@calpt via #172)
• Add method get_adapter() to retrieve weights of an adapter (@hSterz via #169)

Changed

• Re-add adapter_names argument to model forward() methods (@calpt via #176)

Fixed

• Fix resolving of adapter from Hub when multiple options available (@Aaronsom via #164)
• Fix & improve adapter saving/ loading using Trainer class (@calpt via #178)

v2.0.0

Based on transformers v4.5.1

All major new features & changes are described at https://docs.adapterhub.ml/v2_transition.

• all changes merged via #105

Additional changes & Fixes

• Support loading adapters with load_best_model_at_end in Trainer (@calpt via #122)
• Add setter for active_adapters property (@calpt via #132)
• New notebooks for NER, text generation & AdapterDrop (@hSterz via #135)
• Enable trainer to load adapters from checkpoints (@hSterz via #138)
• Update & clean up example scripts (@hSterz via #154 & @calpt via #141, #155)
• Add unfreeze_adapters param to train_fusion() (@calpt via #156)
• Ensure eval/ train mode is correct for AdapterFusion (@calpt via #157)

v1.1.1

Based on transformers v3.5.1

New

• Modular & custom prediction heads for flex head models (@hSterz via #88)

Fixed

• Fixes for DistilBERT layer norm and AdapterFusion (@calpt via #102)
• Fix for reloading full models with AdapterFusion (@calpt via #110)
• Fix attention and logits output for flex head models (@calpt via #103 & #111)
• Fix loss output of flex model with QA head (@hSterz via #88)

v1.1.0

Based on transformers v3.5.1

New

• New model with adapter support: DistilBERT (@calpt via #67)
• Save label->id mapping of the task together with the adapter prediction head (@hSterz via #75)
• Automatically set matching label->id mapping together with active prediction head (@hSterz via #81)
• Upgraded underlying transformers version (@calpt via #55, #72 and #85)
• Colab notebook tutorials showcasing all AdapterHub concepts (@calpt via #89)

Fixed

• Support for models with flexible heads in pipelines (@calpt via #80)
• Adapt input to models with flexible heads to static prediction heads input (@calpt via #90)

v1.0.1

Based on transformers v2.11.0

New

• Adds squad-style QA prediction head to flex-head models

Bug fixes

• Fixes loading and saving of adapter config in model.save_pretrained()
• Fixes parsing of adapter names in fusion setup