v0.4.3

What's Changed

• feat: add DSPyOptimizer with MIPROv2 for advanced prompt optimization by @anistark in #2537
• feat(docs): add llms.txt generation for LLM-friendly documentation by @sanjeed5 in #2539
• feat: dspy caching by @anistark in #2542
• feat: add system prompt support for InstructorLLM and LiteLLMStructuredLLM by @anistark in #2543
• feat(docs): add copy-to-llm button for easy AI tool integration by @sanjeed5 in #2541
• fix: use PAT token for docs-check CI as docs-apply CI by @anistark in #2546
• feat: add remaining quickstart templates by @anistark in #2547
• fix: enable FactualCorrectness language adaptation by @anistark in #2555
• fix: resolve DiskCacheBackend pickling issue with InstructorLLM by @anistark in #2556
• fix: lazy init DEFAULT_TOKENIZER to avoid network calls at import time. by @cgaswin in #2545
• fix: comment on failed task by @anistark in #2557
• docs: fix DiscreteMetric llm examples to match API by @cgaswin in #2558
• fix: add repository parameter to checkout action for fork PR support by @anistark in #2559

Full Changelog: v0.4.2...v0.4.3