Challenge: In order to perform downstream tasks, Large Language Models (LLMs) need continual adaptation without catastrophic forgetting.
Approach: They propose a new paradigm that allows for continual adaptation without catastrophic forgetting . they propose to replay previous data based on task similarity with instructions .
Outcome: The proposed method improves performance over 16 tasks with different training orders.

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InfoCL: Alleviating Catastrophic Forgetting in Continual Text Classification from An Information Theoretic Perspective (2023.findings-emnlp)

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Challenge: Recent studies have identified the severe performance decrease on analogous classes as a key factor for catastrophic forgetting.
Approach: They propose a replay-based continual text classification method that uses fast-slow and current-past contrastive learning to perform mutual information maximization and better recover previously learned representations.
Outcome: The proposed method achieves state-of-the-art on three text classification tasks.
CITB: A Benchmark for Continual Instruction Tuning (2023.findings-emnlp)

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Challenge: Existing methods for instruction tuning do not leverage the rich natural language instructions.
Approach: They propose to use a benchmark to study how instruction tuning works in CL tasks.
Outcome: The proposed method can achieve similar or better results than existing CL methods.
FOREVER: Forgetting Curve-Inspired Memory Replay for Language Model Continual Learning (2026.acl-long)

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Challenge: Continual learning (CL) for large language models (LLMs) aims to enable sequential knowledge acquisition without catastrophic forgetting.
Approach: They propose a framework that aligns replay schedules with a model-centric notion of time.
Outcome: Experiments on three benchmarks show that FOREVER consistently mitigates catastrophic forgetting.
Don’t Half-listen: Capturing Key-part Information in Continual Instruction Tuning (2025.acl-long)

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Challenge: Existing methods to improve instruction tuning for large language models may cause catastrophic forgetting (CF) CF is a problem where previously learned abilities are degraded .
Approach: They propose a continual instruction tuning method that uses key-part information gain to replay data and refine training objective.
Outcome: The proposed method achieves superior performance on both seen and held-out tasks.
Fine-tuned Language Models are Continual Learners (2022.emnlp-main)

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Challenge: Recent work on large language models relies on intuition that most tasks can be described via natural language instructions.
Approach: They propose that a model should be able to keep extending its knowledge without forgetting previous skills.
Outcome: The proposed model can learn 8 new diverse language generation tasks while maintaining good performance on previous tasks, spanning in total of 70 datasets.
Rehearsal-Free Modular and Compositional Continual Learning for Language Models (2024.naacl-short)

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Challenge: Existing methods to overcome catastrophic forgetting are rehearsal-based and parameter isolation-based.
Approach: They propose a rehearsal-free framework which continuously adds new modules to language models and composes them with existing modules.
Outcome: Experiments on benchmarks show that MoCL outperforms state-of-the-art and effectively facilitates knowledge transfer.
Exploring Two-Phase Continual Instruction Fine-tuning for Multilingual Adaptation in Large Language Models (2026.findings-acl)

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Challenge: A key challenge for Large Language Models (LLMs) is improving their Multilingual instruction-following ability over time without deteriorating their ability in languages they already excel at, typically English.
Approach: They propose a two-phase Continual Fine-tuning setup to improve a model's Multilingual adaptability by comparing an English-only LLM with a multilingual instruction dataset.
Outcome: The proposed model improves on two-phase Continual Fine-tuning (CFT) setups on a multilingual instruction dataset.
CommonIT: Commonality-Aware Instruction Tuning for Large Language Models via Data Partitions (2024.emnlp-main)

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Challenge: Current studies have focused on fine-tuning, but the use of instruction tuning is not as effective as fine-cuning.
Approach: They propose a commonality-aware instruction tuning strategy to cluster instruction datasets into distinct groups with three proposed metrics Task, Embedding and Length.
Outcome: The proposed strategy boosts an average improvement of 2.1% on the general domain and 5.2% on the special domain.
Continual Learning of Large Language Models (2025.emnlp-tutorials)

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Challenge: This tutorial explores the challenges of continual learning in large language models . participants will learn strategies to mitigate forgetting and manage data and evaluation pipelines .
Approach: This tutorial offers a comprehensive exploration of continual learning in the context of large language models.
Outcome: This tutorial explores the challenges of continual learning in large language models . participants will learn how to manage data and evaluation pipelines and adapt responsibly .
Teaching According to Talents! Instruction Tuning LLMs with Competence-Aware Curriculum Learning (2025.findings-emnlp)

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Challenge: Efficient instruction tuning aims to enhance the ultimate performance of large language models (LLMs) current methods suffer from the curriculum rigidity, resulting in a fixed and potentially sub-optimal learning trajectory.
Approach: a framework for efficient instruction tuning is proposed to address the issue of curriculum rigidity . current methods rely on static heuristic difficulty metrics and fail to adapt to evolving capabilities .
Outcome: Efficient instruction tuning aims to enhance the ultimate performance of large language models . current methods suffer from the curriculum rigidity, resulting in a fixed learning trajectory .

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