DSPy 3.4.1 makes GEPA’s structured InstructionProposer the default and lets RLM build sub-agents in its REPL
Stanfordnlp published this on Oct 12, 2026 (source: github.com).
Stanford NLP released DSPy 3.4.1. The release makes GEPA’s structured InstructionProposer the default instruction proposer, lets dspy.RLM build DSPy sub-agents from inside its REPL, adds Python 3.15 support, fixes a 3.4.0 import crash, and includes streaming, adapter and interpreter fixes. Upgrade note: GEPA’s default reflection request shape changed, so optimization results can differ from 3.4.0 even with the same seed.