Release v3.5.1: spancat for multi-class labeling, fixes for textcat+transformers and more · explosion/spaCy

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✨ New features and improvements

NEW: spancat_singlelabel pipeline component for multi-class and non-overlapping span classification. The spancat_singlelabel component predicts at most one label for each suggested span and adds a new setting allow_overlap to restrict the output to non-overlapping spans (#11365).
Extend to mypy v1.0 (#12245).
Use transformer + CNN for efficient GPU textcat with spacy init config (#11900).
Support trainable lemmatizer in spacy debug data (#11419).
Add new operators to dependency matcher for left/right immediate child/parent nodes (>+, >-, <+, <-) (#12334).
Add spacy.PlainTextCorpusReader.v1 for plain text input (#12122).
Add alignment_mode and span_id to Span.char_span() (#12145, #12196).
Use string formatting types in logging calls (#12215).

#12017: Improve speed for top_k>1 in trainable lemmatizer.
#12048: Make test_cli_find_threshold() test more robust.
#12227: Fix return type of registry.find().
#12272: Fix speed regression for Matcher patterns with extension attributes.
#12287: Add grc to languages with lexeme norms in spacy-lookups-data.
#12320: Make generation of empty KnowledgeBase instances configurable.
#12343: Fix error message for displacy auto_select_port.
#12347: Fix length check for knowledge base in entity linker, add InMemoryLookupKB.is_empty.
#12365: Fix types for Lexeme.orth and Lexeme.lower.
#12366: Raise error for non-default vectors with PretrainVectors.
#12368: Partially address pending deprecation of pkg_resources.
Various improvements and fixes for the test suite (#12148, #12157, #12210, #12303, #12372).

Many website updates to improve accessibility.
Various documentation corrections and updates.
New projects:
- Span labeling datasets
- Comparing embedding layers in spaCy from the technical report Multi hash embeddings in spaCy