v2.18.0

What's Changed

• Isolate demo dependencies and pin orjson for CVE-2025-67221 mitigation by @evcyen in #1173
• feat: Add LIT integration for interactive model analysis (#121) by @HetanshWaghela in #1163
• fix: set n_ctx=512 for TinyStories models by @puranikyashaswin in #1162
• Fix/tokenize and concatenate invalid token by @evcyen in #1179
• Remove spurious warning for tokenize_and_concatenate by @evcyen in #1177
• Add MMLU benchmark evaluation to evals by @CarlG0123 in #1183
• Fix/1076 logit lens layer norm by @evcyen in #1180
• Updating Interactive Neuroscope, CI to properly install demo by @jlarson4 in #1205
• Fix tokenize_and_concatenate splitting tokens across chunk boundaries by @brainsnog in #1201
• Fix deprecated IPython magic() calls in demo notebooks (issue #1036) by @brainsnog in #1203
• Expose n_ctx override in HookedTransformer.from_pretrained (issue #1006) by @brainsnog in #1204
• Added warning flags for usages of MPS by @jlarson4 in #1182
• Add GPT-OSS-20B model support by @CarlG0123 in #1195
• fixed the logit lens implementation inside ActivationCache.accumulated_resid to match the standard definition in literature and the expected and defined behavior as per the documentation in the docstring and in the docs by @hartigel in #1077
• Add Apertus model support with XIeLU activation by @sinievanderben in #1197
• Fix attention calculation on mps for torch 2.8.0 by @BrownianNotion in #1068
• HuBERT support rollout by @david-wei-01001 in #1111
• Pre-release testing by @jlarson4 in #1210
• Fix backward hooks Runtime Error by @evcyen in #1175
• Release v2.18.0 by @jlarson4 in #1211

New Contributors

• @evcyen made their first contribution in #1173
• @HetanshWaghela made their first contribution in #1163
• @puranikyashaswin made their first contribution in #1162
• @CarlG0123 made their first contribution in #1183
• @brainsnog made their first contribution in #1201
• @hartigel made their first contribution in #1077
• @sinievanderben made their first contribution in #1197
• @BrownianNotion made their first contribution in #1068
• @david-wei-01001 made their first contribution in #1111

Full Changelog: v2.17.0...v2.18.0