LangGraph vs Perplexity

The feed carries the LangGraph monorepo's per-package release tags — the core library, the CLI, and three checkpoint backends — each publishing a raw commit list under a version-only title. Nearly all recent movement sits in checkpoint persistence: delta-channel history correctness, namespace matching scoped to segment boundaries, and an opt-in flag to skip expired rows on read. The core library's own changes are dependency bumps plus a tracing API that has been exposed, stripped of tags, deleted, and exposed again across three releases.

Checkpointing — how agent state is persisted and replayed — is where the engineering attention is concentrated, and the specific fixes are the kind that only surface once people run long-lived graphs against real databases rather than in notebooks. The second thread is that TracePolicy has not settled: added to add_node, then narrowed, then reverted outright, then re-exposed in the newest release, which puts the observability surface visibly still in design. Neither thread changes what LangGraph is for; both are the work of making a 1.x framework survive production use.

The checkpoint packages will most likely keep releasing in lockstep with the core library, since a single change routinely fans out across three tags. Whether trace_policy survives this time is the open question these entries do not answer.